| H | SK | SECTION H — ELECTRICITY |
| H04 | KL | ELECTRIC COMMUNICATION TECHNIQUE |
| H04N | UKL | PICTORIAL COMMUNICATION, e.g. TELEVISION (measuring, testing G01; systems for autographic writing, e.g. writing telegraphy, which involve following an outline G08; information storage based on relative movement between record carrier and transducer G11B; coding, decoding or code conversion, in general H03M; broadcast distribution or the recording of use made thereof H04H) [4] |
| H04N 1/00 | HGR | Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof [3, 4] |
| H04N 1/024 | UGR1 | | . | Details of scanning heads [3, 4] |
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| H04N 1/028 | UGR2 | | . . | for picture-information pick-up [3, 4] |
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| H04N 1/029 | UGR3 | | . . . | Heads optically focused on only one picture element at a time [6] |
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| H04N 1/03 | UGR3 | | . . . | with photodetectors arranged in a substantially linear array (scanning of linear arrays H04N 1/19) [6] |
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| H04N 1/031 | UGR4 | | . . . . | the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors [6] |
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| H04N 1/032 | UGR2 | | . . | for picture-information reproduction (engraving heads for the manufacture of printing formes B41C 1/02) [3, 4] |
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| H04N 1/034 | UGR3 | | . . . | using ink, e.g. ink-jet heads [5] |
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| H04N 1/036 | UGR3 | | . . . | for optical reproduction [3, 4] |
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| H04N 1/04 | UGR1 | | . | Scanning arrangements (H04N 1/387 takes precedence) [4] |
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| H04N 1/047 | UGR2 | | . . | Detection, control or error compensation of scanning velocity or position (H04N 1/17 takes precedence) [6] |
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| H04N 1/053 | UGR3 | | . . . | in main scanning direction, e.g. synchronisation of line start or picture elements in a line [6] |
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| H04N 1/06 | UGR2 | | . . | using cylindrical picture-bearing surfaces [4] |
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| H04N 1/08 | UGR3 | | . . . | Mechanisms for mounting or holding the sheet around the drum [4] |
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| H04N 1/10 | UGR2 | | . . | using flat picture-bearing surfaces [4] |
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| H04N 1/107 | UGR3 | | . . . | with manual scanning [6] |
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| H04N 1/113 | UGR2 | | . . | using oscillating or rotating mirrors [6] |
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| H04N 1/12 | UGR2 | | . . | using the sheet-feed movement as the slow scanning component (using multi-element arrays H04N 1/19) [4, 6] |
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| H04N 1/14 | UGR3 | | . . . | using a rotating endless belt carrying the scanning heads [4] |
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| H04N 1/16 | UGR3 | | . . . | using a rotating helical element [4] |
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| H04N 1/17 | UGR2 | | . . | the scanning speed being dependent on content of picture [3, 4] |
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| H04N 1/19 | UGR2 | | . . | using multi-element arrays [6] |
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| H04N 1/191 | UGR3 | | . . . | the array comprising a one-dimensional array [6] |
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| H04N 1/192 | UGR4 | | . . . . | Simultaneously scanning picture elements on one main scanning line [6] |
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| H04N 1/193 | UGR5 | | . . . . . | using electrically scanned linear arrays [6] |
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| H04N 1/195 | UGR3 | | . . . | the array comprising a two-dimensional array [6] |
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| H04N 1/203 | UGR2 | | . . | Simultaneous scanning of two or more separate pictures [6] |
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| H04N 1/207 | UGR2 | | . . | Simultaneous scanning of the original picture and the reproduced picture with a common scanning device [6] |
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| H04N 1/21 | UGR1 | | . | Intermediate information storage (H04N 1/387, H04N 1/41 take precedence; information storage in general G11) [4] |
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| H04N 1/23 | UGR1 | | . | Reproducing arrangements (details of scanning heads H04N 1/024; scanning arrangements therefor H04N 1/04) [4] |
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| H04N 1/27 | UGR2 | | . . | involving production of a magnetic intermediate picture [4] |
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| H04N 1/29 | UGR2 | | . . | involving production of an electrostatic intermediate picture [4] |
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| H04N 1/31 | UGR2 | | . . | Mechanical arrangements for picture transmission, e.g. adaptation of clutches, gearing, gear transmissions [4] |
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| H04N 1/32 | UGR1 | | . | Circuits or arrangements for control or supervision between transmitter and receiver |
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| H04N 1/327 | UGR2 | | . . | Initiating, continuing or ending a single-mode communication; Handshaking therefor [6] |
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| H04N 1/333 | UGR2 | | . . | Mode signalling or mode changing; Handshaking therefor [6] |
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| H04N 1/34 | UGR2 | | . . | for coin-freed systems |
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| H04N 1/36 | UGR2 | | . . | for synchronising or phasing transmitter and receiver |
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| H04N 1/38 | UGR1 | | . | Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures (H04N 1/387 takes precedence) [4] |
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| H04N 1/387 | UGR1 | | . | Composing, repositioning or otherwise modifying originals (photoelectronic composing of characters B41B 19/00) [4] |
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| H04N 1/393 | UGR2 | | . . | Enlarging or reducing [4] |
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| H04N 1/40 | UGR1 | | . | Picture signal circuits (H04N 1/387 takes precedence) [4] |
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| H04N 1/401 | UGR2 | | . . | Compensating positionaly unequal response of the pick-up or reproducing head (H04N 1/403 takes precedence) [6] |
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| H04N 1/403 | UGR2 | | . . | Discrimination between the two tones in the picture signal of a two-tone original (shaping pulses by limiting or thresholding, in general H03K 5/08) [6] |
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| H04N 1/405 | UGR2 | | . . | Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels [6] |
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| H04N 1/407 | UGR2 | | . . | Control or modification of tonal gradation or of extreme levels, e.g. background level [6] |
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| H04N 1/409 | UGR2 | | . . | Edge or detail enhancement; Noise or error suppression [6] |
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| H04N 1/41 | UGR1 | | . | Bandwidth or redundancy reduction (by scanning H04N 1/17) [3] |
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| H04N 1/411 | UGR2 | | . . | for the transmission or reproduction of two-tone pictures, e.g. black and white pictures [4] |
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| H04N 1/413 | UGR3 | | . . . | Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information [4] |
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| H04N 1/415 | UGR4 | | . . . . | in which the picture-elements are subdivided or grouped into fixed one-dimensional or two-dimensional blocks [4] |
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| H04N 1/417 | UGR4 | | . . . . | using predictive or differential encoding [4] |
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| H04N 1/419 | UGR4 | | . . . . | in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step [4] |
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| H04N 1/42 | UGR1 | | . | Systems for two-way working |
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| H04N 1/44 | UGR1 | |
| H04N 1/46 | UGR1 | | . | Colour picture communication systems |
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| H04N 1/48 | UGR2 | | . . | Picture signal generators (for halftone screening H04N 1/52) [6] |
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| H04N 1/50 | UGR2 | | . . | Picture reproducers (for halftone screening H04N 1/52) [6] |
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| H04N 1/52 | UGR2 | | . . | Circuits or arrangements for halftone screening [6] |
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| H04N 1/54 | UGR2 | | . . | Conversion of colour picture signals to a plurality of signals some of which represent particular mixed colours, e.g. for textile printing [6] |
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| H04N 1/56 | UGR2 | | . . | Processing of colour picture signals (H04N 1/52 takes precedence) [6] |
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| H04N 1/58 | UGR3 | | . . . | Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction (H04N 1/62 takes precedence) [6] |
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| H04N 1/60 | UGR3 | | . . . | Colour correction or control [6] |
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| H04N 1/62 | UGR4 | | . . . . | Retouching, i.e. modification of isolated colours only or in isolated picture areas only [6] |
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| H04N 1/64 | UGR2 | | . . | Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor [6] |
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| H04N 3/00 | HGR | Scanning details of television systems; Combination thereof with generation of supply voltages [4] |
| H04N 3/02 | UGR1 | | . | by optical-mechanical means only (H04N 3/36 takes precedence; optical scanning systems in general G02B 26/10) [2] |
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| H04N 3/04 | UGR2 | | . . | having a moving aperture |
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| H04N 3/06 | UGR2 | | . . | having a moving lens or other refractor |
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| H04N 3/08 | UGR2 | | . . | having a moving reflector |
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| H04N 3/09 | UGR3 | | . . . | for electromagnetic radiation in the invisible region, e.g. infra-red [4] |
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| H04N 3/10 | UGR1 | | . | by means not exclusively optical-mechanical (H04N 3/36 takes precedence; devices or arrangements for the electro-, magneto- or acousto-optical modulation or deflection of light beams G02F) [2] |
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| H04N 3/12 | UGR2 | | . . | by switched stationary formation of lamps, photocells, or light relays |
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| H04N 3/14 | UGR2 | | . . | by means of electrically scanned solid-state devices |
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| H04N 3/15 | UGR3 | | . . . | for picture signal generation [3] |
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| H04N 3/16 | UGR2 | | . . | by deflecting electron beam in cathode-ray tube (producing sawtooth waveforms H03K 4/00) |
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| H04N 3/18 | UGR3 | | . . . | Generation of supply voltages, in combination with electron beam deflecting [4] |
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| H04N 3/185 | UGR4 | | . . . . | Maintaining dc voltage constant (regulation of dc voltage in general G05F) [4] |
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| H04N 3/19 | UGR4 | | . . . . | Arrangements or assemblies in supply circuits for the purpose of withstanding high voltages [3] |
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| H04N 3/20 | UGR3 | | . . . | Prevention of damage to cathode-ray tubes in event of failure of scanning |
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| H04N 3/22 | UGR3 | | . . . | Circuits for controlling dimensions, shape or centering of picture on screen |
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| H04N 3/223 | UGR4 | | . . . . | Controlling dimensions (by maintaining the cathode-ray tube high voltage constant H04N 3/185) [4] |
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| H04N 3/227 | UGR4 | |
| H04N 3/23 | UGR4 | | . . . . | Distortion correction, e.g. for pincushion distortion correction, S-correction [4] |
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| H04N 3/233 | UGR5 | | . . . . . | using active elements [4] |
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| H04N 3/237 | UGR5 | | . . . . . | using passive elements [4] |
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| H04N 3/24 | UGR3 | |
| H04N 3/26 | UGR3 | | . . . | Modifications of scanning arrangements to improve focusing (focusing circuits in general H01J) |
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| H04N 3/27 | UGR3 | | . . . | Circuits special to multi-standard receivers (circuitry of multi-standard receivers in general H04N 5/46) [3, 4] |
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| H04N 3/28 | UGR2 | | . . | producing multiple scanning, i.e. using more than one spot at the same time |
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| H04N 3/30 | UGR2 | | . . | otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines |
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| H04N 3/32 | UGR3 | | . . . | Velocity varied in dependence upon picture information |
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| H04N 3/34 | UGR3 | | . . . | Elemental scanning area oscillated rapidly in direction transverse to main scanning direction |
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| H04N 3/36 | UGR1 | | . | Scanning of motion picture films, e.g. for telecine [2] |
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| H04N 3/38 | UGR2 | | . . | with continuously moving film [4] |
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| H04N 3/40 | UGR2 | | . . | with intermittently moving film [4] |
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| H04N 5/00 | HGR | Details of television systems (scanning details or combination thereof with generation of supply voltages H04N 3/00; specially adapted for colour television H04N 9/00) [4] |
| H04N 5/04 | UGR1 | | . | Synchronising (for television systems using pulse code modulation H04N 7/24; in general H03L 7/00) [4] |
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| H04N 5/05 | UGR2 | | . . | Synchronising circuits with arrangements for extending range of synchronisation, e.g. by using switching between several time constants [2] |
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| H04N 5/06 | UGR2 | | . . | Generation of synchronising signals |
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| H04N 5/067 | UGR3 | | . . . | Arrangements or circuits at the transmitter end [4] |
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| H04N 5/073 | UGR4 | | . . . . | for mutually locking plural sources of synchronising signals, e.g. studios or relay stations [4] |
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| H04N 5/08 | UGR2 | | . . | Separation of synchronising signals from picture signals |
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| H04N 5/10 | UGR3 | | . . . | Separation of line synchronising signal from frame synchronising signal |
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| H04N 5/12 | UGR2 | | . . | Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising [2] |
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| H04N 5/14 | UGR1 | | . | Picture signal circuitry for video frequency region (H04N 5/222 takes precedence) [2] |
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| H04N 5/16 | UGR2 | | . . | Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level |
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| H04N 5/18 | UGR3 | | . . . | by means of "clamp" circuit operated by switching circuit |
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| H04N 5/20 | UGR2 | | . . | Circuitry for controlling amplitude response |
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| H04N 5/202 | UGR3 | |
| H04N 5/205 | UGR3 | | . . . | for correcting amplitude versus frequency characteristic [4] |
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| H04N 5/208 | UGR4 | | . . . . | for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction [4] |
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| H04N 5/21 | UGR2 | | . . | Circuitry for suppressing or minimising disturbance, e.g. moire, halo (suppression of noise in television recording H04N 5/911) |
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| H04N 5/213 | UGR3 | | . . . | Circuitry for suppressing or minimising impulsive noise (H04N 5/217 takes precedence) [4] |
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| H04N 5/217 | UGR3 | | . . . | in picture signal generation [4] |
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| H04N 5/222 | UGR1 | | . | Studio circuitry; Studio devices; Studio equipment [4] |
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| H04N 5/225 | UGR2 | | . . | Television cameras [4] |
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| H04N 5/228 | UGR3 | | . . . | Circuit details for pick-up tubes [4] |
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| H04N 5/232 | UGR3 | | . . . | Devices for controlling television cameras, e.g. remote control (H04N 5/235 takes precedence; control of exposure in cameras by setting shutters, diaphragms or filters separately or conjointly G03B 7/00; focusing for cameras G03B 13/00; varying magnification for cameras G03B 17/00) [4] |
|
| H04N 5/235 | UGR3 | | . . . | Circuitry for compensating for variation in the brightness of the object [4] |
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| H04N 5/238 | UGR4 | | . . . . | by influencing optical part of the camera [4] |
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| H04N 5/243 | UGR4 | | . . . . | by influencing the picture signal [4] |
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| H04N 5/247 | UGR3 | | . . . | Arrangement of television cameras [4] |
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| H04N 5/253 | UGR2 | | . . | Picture signal generating by scanning motion picture films or slide opaques, e.g. for telecine (scanning details therefor H04N 3/36) [4] |
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| H04N 5/257 | UGR2 | | . . | Picture signal generators using flying-spot scanners (H04N 5/253 takes precedence) [4] |
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| H04N 5/262 | UGR2 | | . . | Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects [4] |
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| H04N 5/265 | UGR3 | |
| H04N 5/268 | UGR3 | | . . . | Signal distribution or switching (for broadcasting H04H 1/00) [4] |
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| H04N 5/272 | UGR3 | | . . . | Means for inserting a foreground image in a background image, i.e. inlay, outlay [4] |
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| H04N 5/275 | UGR4 | | . . . . | Generation of keying signals [4] |
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| H04N 5/278 | UGR3 | |
| H04N 5/28 | UGR2 | |
| H04N 5/30 | UGR1 | | . | Transforming light or analogous information into electric information (H04N 5/222 takes precedence; scanning details H04N 3/00; transforming acoustic waves into electric information G01S 7/52, G01S 15/89; light transforming elements H01J, H01L) [2, 4, 7] |
|
| H04N 5/32 | UGR2 | |
| H04N 5/321 | UGR3 | | . . . | with video transmission of fluoroscopic images [5] |
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| H04N 5/325 | UGR4 | | . . . . | Image enhancement, e.g. by subtraction techniques using polyenergetic X-rays [5] |
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| H04N 5/33 | UGR2 | | . . | Transforming infra-red radiation [2] |
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| H04N 5/335 | UGR2 | | . . | using electrically scanned solid-state devices (H04N 5/32, H04N 5/33 take precedence) [4] |
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| H04N 5/38 | UGR1 | | . | Transmitter circuitry (H04N 5/14 takes precedence) [4] |
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| H04N 5/40 | UGR2 | |
| H04N 5/42 | UGR2 | | . . | for transmitting at will black-and-white or colour signals |
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| H04N 5/44 | UGR1 | | . | Receiver circuitry (H04N 5/14 takes precedence) [4] |
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| H04N 5/445 | UGR2 | | . . | for displaying additional information (H04N 5/50 takes precedence) [4] |
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| H04N 5/45 | UGR3 | | . . . | Picture in picture [4] |
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| H04N 5/455 | UGR2 | | . . | Demodulation-circuits (demodulation in general H03D) [4] |
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| H04N 5/46 | UGR2 | | . . | for receiving on more than one standard at will (deflecting circuits of multi-standard receivers H04N 3/27) [4] |
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| H04N 5/50 | UGR2 | | . . | Tuning indicators; Automatic tuning control (tuning control in general H03J) [4] |
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| H04N 5/52 | UGR2 | | . . | Automatic gain control [4] |
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| H04N 5/53 | UGR3 | | . . . | Keyed automatic gain control [4] |
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| H04N 5/54 | UGR3 | | . . . | for positively-modulated picture signals (H04N 5/53 takes precedence) [4] |
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| H04N 5/56 | UGR3 | | . . . | for negatively-modulated picture signals (H04N 5/53 takes precedence) [4] |
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| H04N 5/57 | UGR2 | | . . | Control of contrast or brightness [4] |
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| H04N 5/58 | UGR3 | | . . . | in dependence upon ambient light [4] |
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| H04N 5/59 | UGR3 | | . . . | in dependence upon beam current of cathode ray tube [4] |
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| H04N 5/60 | UGR2 | |
| H04N 5/62 | UGR3 | | . . . | Intercarrier circuits, i.e. heterodyning sound and vision carriers |
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| H04N 5/63 | UGR1 | | . | Generation or supply of power specially adapted for television receivers (generation of supply voltages in combination with electron beam deflecting H04N 3/18; regulating of voltage or current in general G05F; transformers H01F; supplying or distributing electric power, in general H02J; static converters H02M) [4] |
|
| H04N 5/64 | UGR1 | | . | Constructional details of receivers, e.g. cabinets, dust covers (furniture aspects A47B, e.g. A47B 81/06) [2] |
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| H04N 5/645 | UGR2 | | . . | Mounting of picture tube on chassis or in housing |
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| H04N 5/65 | UGR2 | | . . | Holding-devices for protective discs or for picture masks |
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| H04N 5/655 | UGR2 | | . . | Construction or mounting of chassis, e.g. for varying the elevation of the tube |
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| H04N 5/66 | UGR1 | | . | Transforming electric information into light information (scanning details H04N 3/00) |
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| H04N 5/68 | UGR2 | | . . | Circuit details for cathode-ray display tubes |
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| H04N 5/70 | UGR2 | | . . | Circuit details for electroluminescent devices |
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| H04N 5/72 | UGR1 | | . | Modifying the appearance of television pictures by optical filters or diffusing screens (optical filters or diffusing screens per seG02B 5/00) |
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| H04N 5/74 | UGR1 | | . | Projection arrangements for image reproduction, e.g. using eidophor (optical systems in general G02B) |
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| H04N 5/76 | UGR1 | | . | Television signal recording (diagnosis, testing or measuring of television signal recorders H04N 17/06; recording in connection with measuring G01D; information storage in general G11, e.g. G11B) [3, 4] |
|
| H04N 5/761 | UGR2 | | . . | Systems for programming the time at which predetermined television channels will be selected for recording [7] |
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| H04N 5/7613 | UGR3 | | . . . | by using data entered by the user and a reference timing clock incorporated in the recorder [7] |
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| H04N 5/7617 | UGR3 | | . . . | by using data entered by the user and reference data transmitted by the broadcasting station [7] |
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| H04N 5/765 | UGR2 | | . . | Interface circuits between an apparatus for recording and another apparatus (associated working of recording or reproducing apparatus with a television camera or receiver in which the television signal is not significantly involved G11B 31/00) [6] |
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| H04N 5/77 | UGR3 | | . . . | between a recording apparatus and a television camera [6] |
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| H04N 5/775 | UGR3 | | . . . | between a recording apparatus and a television receiver [6] |
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| H04N 5/78 | UGR2 | | . . | using magnetic recording (H04N 5/91 takes precedence) [3] |
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| H04N 5/781 | UGR3 | | . . . | on discs or drums [3] |
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| H04N 5/782 | UGR3 | |
| H04N 5/7822 | UGR4 | | . . . . | with stationary magnetic heads [6] |
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| H04N 5/7824 | UGR4 | | . . . . | with rotating magnetic heads [6] |
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| H04N 5/7826 | UGR5 | | . . . . . | involving helical scanning of the magnetic tape [6] |
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| H04N 5/7828 | UGR5 | | . . . . . | involving transversal scanning of the magnetic tape [6] |
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| H04N 5/783 | UGR4 | | . . . . | Adaptations for reproducing at a rate different from the recording rate [3] |
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| H04N 5/784 | UGR3 | |
| H04N 5/80 | UGR2 | | . . | using electrostatic recording (H04N 5/91 takes precedence) [3] |
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| H04N 5/82 | UGR3 | | . . . | using deformable thermoplastic recording medium |
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| H04N 5/83 | UGR4 | | . . . . | on discs or drums [3] |
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| H04N 5/84 | UGR2 | |
| H04N 5/85 | UGR3 | | . . . | on discs or drums [3] |
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| H04N 5/87 | UGR3 | | . . . | Producing a motion picture film from a television signal (scanning of motion picture films for television signal generation H04N 3/36; television signal generation by scanning a motion picture film H04N 5/253, H04N 9/11) [3, 4] |
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| H04N 5/89 | UGR2 | | . . | using holographic recording (H04N 5/91 take precedence) [3] |
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| H04N 5/90 | UGR3 | | . . . | on discs or drums [3] |
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| H04N 5/903 | UGR2 | | . . | using variable electrical capacitive recording (H04N 5/91 takes precedence) [4] |
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| H04N 5/907 | UGR2 | | . . | using static stores, e.g. storage tubes, semiconductor memories (H04N 5/91 takes precedence; based on relative movement between record carrier and transducer H04N 5/78-H04N 5/903) [4] |
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| H04N 5/91 | UGR2 | | . . | Television signal processing therefor (of colour signals H04N 9/79) [3] |
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| H04N 5/911 | UGR3 | | . . . | for the suppression of noise [6] |
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| H04N 5/913 | UGR3 | | . . . | for scrambling (scrambling of a television signal for transmission H04N 7/167) [6] |
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| H04N 5/915 | UGR3 | | . . . | for field- or frame-skip recording or reproducing [6] |
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| H04N 5/917 | UGR3 | | . . . | for bandwidth reduction (bandwidth reduction H04N 7/12; using pulse code modulation H04N 7/24) [6] |
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| H04N 5/919 | UGR4 | | . . . . | by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels [6] |
|
| H04N 5/92 | UGR3 | | . . . | Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback [3] |
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| H04N 5/921 | UGR4 | | . . . . | by recording or reproducing the baseband signal [6] |
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| H04N 5/922 | UGR4 | | . . . . | by modulation of the signal on a carrier wave, e.g. amplitude or frequency modulation [6] |
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| H04N 5/923 | UGR4 | | . . . . | using preemphasis of the signal before modulation and deemphasis of the signal after demodulation [6] |
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| H04N 5/924 | UGR4 | | . . . . | using duty cycle modulation [6] |
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| H04N 5/926 | UGR4 | | . . . . | by pulse code modulation (H04N 5/919 takes precedence) [6] |
|
| H04N 5/928 | UGR4 | | . . . . | the sound signal being pulse code modulated and recorded in time division multiplex with the modulated video signal [6] |
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| H04N 5/93 | UGR3 | | . . . | Regeneration of the television signal or of selected parts thereof [3] |
|
| H04N 5/931 | UGR4 | | . . . . | for restoring the level of the reproduced signal [6] |
|
| H04N 5/932 | UGR4 | | . . . . | Regeneration of analogue synchronisation signals [6] |
|
| H04N 5/935 | UGR4 | | . . . . | Regeneration of digital synchronisation signals [6] |
|
| H04N 5/937 | UGR4 | | . . . . | by assembling picture element blocks in an intermediate store [6] |
|
| H04N 5/94 | UGR4 | | . . . . | Signal drop-out compensation [3] |
|
| H04N 5/945 | UGR5 | | . . . . . | for signals recorded by pulse code modulation (error detection or correction of digital signals for recording in general G11B 20/18) [6] |
|
| H04N 5/95 | UGR4 | | . . . . | Time-base error compensation [3] |
|
| H04N 5/953 | UGR5 | | . . . . . | by using an analogue memory, e.g. a CCD-shift register, the delay of which is controlled by a voltage controlled oscillator [6] |
|
| H04N 5/956 | UGR5 | | . . . . . | by using a digital memory with independent write-in and read-out clock generators [6] |
|
| H04N 7/00 | HGR | Television systems (details H04N 3/00, H04N 5/00; specially adapted for colour television H04N 11/00; stereoscopic television systems H04N 13/00) [4] |
| H04N 7/01 | UGR1 | | . | Conversion of standards [4] |
|
| H04N 7/015 | UGR1 | | . | High-definition television systems [6] |
|
| H04N 7/025 | UGR1 | | . | Systems for transmission of digital non-picture data, e.g. of text during the active part of a television frame [6] |
|
| H04N 7/03 | UGR2 | | . . | Subscription systems therefor [6] |
|
| H04N 7/035 | UGR2 | | . . | Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal [6] |
|
| H04N 7/04 | UGR1 | | . | Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier [4] |
|
| H04N 7/045 | UGR2 | | . . | the carrier being frequency modulated [6] |
|
| H04N 7/06 | UGR1 | | . | Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier [4] |
|
| H04N 7/08 | UGR1 | | . | Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band [4, 6] |
|
| H04N 7/081 | UGR2 | | . . | the additional information signals being transmitted by means of a subcarrier [6] |
|
| H04N 7/083 | UGR2 | | . . | with signal insertion during the vertical and the horizontal blanking interval [6] |
|
| H04N 7/084 | UGR2 | | . . | with signal insertion during the horizontal blanking interval [6] |
|
| H04N 7/085 | UGR3 | | . . . | the inserted signal being digital [6] |
|
| H04N 7/087 | UGR2 | | . . | with signal insertion during the vertical blanking interval [4] |
|
| H04N 7/088 | UGR3 | | . . . | the inserted signal being digital [6] |
|
| H04N 7/10 | UGR1 | | . | Adaptations for transmission by electrical cable (H04N 7/12 takes precedence) [4] |
|
| H04N 7/12 | UGR1 | | . | Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal (H04N 7/24 takes precedence; high-definition television systems H04N 7/015) [4] |
|
| H04N 7/14 | UGR1 | | . | Systems for two-way working (H04N 7/173 takes precedence) [4] |
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| H04N 7/15 | UGR2 | | . . | Conference systems (telephonic conference arrangements H04M 3/56) [5] |
|
| H04N 7/16 | UGR1 | | . | Secrecy systems; Subscription systems |
|
| H04N 7/167 | UGR2 | | . . | Systems rendering the television signal unintelligible and subsequently intelligible [4] |
|
| H04N 7/169 | UGR3 | | . . . | Systems operating in the time domain of the television signal [6] |
|
| H04N 7/171 | UGR3 | | . . . | Systems operating in the amplitude domain of the television signal [6] |
|
| H04N 7/173 | UGR2 | | . . | with two-way working, e.g. subscriber sending a programme selection signal [4] |
|
| H04N 7/18 | UGR1 | | . | Closed-circuit television systems, i.e. systems in which the signal is not broadcast |
|
| H04N 7/20 | UGR1 | | . | Adaptations for transmission via a GHz frequency band, e.g. via satellite [4] |
|
| H04N 7/22 | UGR1 | | . | Adaptations for optical transmission [4] |
|
| H04N 7/24 | UGR1 | | . | Systems for the transmission of television signals using pulse code modulation [6] |
|
| H04N 7/26 | UGR2 | | . . | using bandwidth reduction (information reduction by code conversion in general H03M 7/30) [6] |
|
| H04N 7/28 | UGR3 | | . . . | using vector coding [6] |
|
| H04N 7/30 | UGR3 | | . . . | involving transform coding (H04N 7/50 takes precedence; digital computers for performing complex mathematical operations, e.g. domain transformation, G06F 17/14) [6] |
|
| H04N 7/32 | UGR3 | |
| H04N 7/34 | UGR4 | | . . . . | using spatial prediction [6] |
|
| H04N 7/36 | UGR4 | | . . . . | using temporal prediction [6] |
|
| H04N 7/38 | UGR4 | | . . . . | involving delta modulation (systems using differential pulse code modulation in general H04B 14/06) [6] |
|
| H04N 7/40 | UGR5 | |
| H04N 7/42 | UGR4 | | . . . . | involving differential modulation (systems using differential pulse code modulation in general H04B 14/06) [6] |
|
| H04N 7/44 | UGR5 | |
| H04N 7/46 | UGR4 | | . . . . | using subsampling at the coder and sample restitution by interpolation at the coder or decoder [6] |
|
| H04N 7/48 | UGR3 | | . . . | involving pulse code modulation and predictive coding [6] |
|
| H04N 7/50 | UGR3 | | . . . | involving transform and predictive coding [6] |
|
| H04N 7/52 | UGR2 | | . . | Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal, a synchronising signal [6] |
|
| H04N 7/54 | UGR3 | | . . . | the signals being synchronous [6] |
|
| H04N 7/56 | UGR4 | | . . . . | Synchronising systems therefor [6] |
|
| H04N 7/58 | UGR3 | | . . . | involving more than one video signal [6] |
|
| H04N 7/60 | UGR3 | | . . . | the signals being asynchronous [6] |
|
| H04N 7/62 | UGR4 | | . . . . | Synchronising systems therefor [6] |
|
| H04N 7/64 | UGR2 | | . . | Systems for detection or correction of transmission errors (coding, decoding or code conversion for error detection or error correction in general H03M 13/00) [6] |
|
| H04N 7/66 | UGR3 | | . . . | using redundant codes [6] |
|
| H04N 7/68 | UGR3 | | . . . | using error concealment [6] |
|
| H04N 9/00 | HGR | Details of colour television systems [4] |
| H04N 9/04 | UGR1 | | . | Picture signal generators [4] |
|
| H04N 9/07 | UGR2 | | . . | with one pick-up device only [2, 4] |
|
| H04N 9/077 | UGR3 | | . . . | whereby the colour signals are characterised by their phase [4] |
|
| H04N 9/083 | UGR3 | | . . . | whereby the colour signals are characterised by their frequency [4] |
|
| H04N 9/09 | UGR2 | | . . | with more than one pick-up device [4] |
|
| H04N 9/093 | UGR3 | | . . . | Systems for avoiding or correcting misregistration of video signals [4] |
|
| H04N 9/097 | UGR3 | | . . . | Optical arrangements associated therewith, e.g. for beam-splitting, for colour correction (beam-splitting in general G02B 27/10) [4] |
|
| H04N 9/10 | UGR2 | | . . | using optical-mechanical scanning means only (H04N 9/11 takes precedence; optical scanning systems in general G02B 26/10) [2, 4] |
|
| H04N 9/11 | UGR2 | | . . | Scanning of colour motion picture films, e.g. for telecine [2, 4] |
|
| H04N 9/12 | UGR1 | | . | Picture reproducers (H04N 9/11 takes precedence; devices or arrangements for the electro-, magneto- or acousto-optical modulation or deflection of light beams G02F) [2, 4] |
|
| H04N 9/14 | UGR2 | | . . | using optical-mechanical scanning means only (optical scanning systems in general G02B 26/10) [2, 4] |
|
| H04N 9/16 | UGR2 | |
| H04N 9/18 | UGR3 | | . . . | using separate electron beams for the primary colour signals (H04N 9/27 takes precedence) [2, 4] |
|
| H04N 9/20 | UGR4 | | . . . . | with more than one beam in a tube [4] |
|
| H04N 9/22 | UGR3 | | . . . | using the same beam for more than one primary colour information (H04N 9/27 takes precedence) [2, 4] |
|
| H04N 9/24 | UGR4 | | . . . . | using means, integral with, or external to, the tube, for producing signal indicating instantaneous beam position [4] |
|
| H04N 9/26 | UGR4 | | . . . . | using electron-optical colour selection means, e.g. line grid, deflection means in or near the gun or near the phosphor screen [4] |
|
| H04N 9/27 | UGR3 | | . . . | with variable depth of penetration of electron beam into the luminescent layer, e.g. penetrons [2, 4] |
|
| H04N 9/28 | UGR3 | | . . . | Arrangements for convergence or focusing [4] |
|
| H04N 9/285 | UGR4 | |
| H04N 9/29 | UGR3 | | . . . | using demagnetisation or compensation of external magnetic fields [2, 4] |
|
| H04N 9/30 | UGR2 | | . . | using solid-state colour display devices [4] |
|
| H04N 9/31 | UGR2 | | . . | Projection devices for colour picture display [2, 4] |
|
| H04N 9/43 | UGR1 | | . | Conversion of monochrome picture signals to colour picture signals for colour picture display [4] |
|
| H04N 9/44 | UGR1 | | . | Colour synchronisation [4] |
|
| H04N 9/45 | UGR2 | | . . | Generation or recovery of colour sub-carriers [4] |
|
| H04N 9/455 | UGR2 | | . . | Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals (H04N 9/45 takes precedence) [4] |
|
| H04N 9/465 | UGR2 | | . . | Synchronisation of the PAL-switch [4] |
|
| H04N 9/47 | UGR2 | | . . | for sequential signals [2, 4] |
|
| H04N 9/475 | UGR2 | | . . | for mutually locking different synchronisation sources [4] |
|
| H04N 9/64 | UGR1 | | . | Circuits for processing colour signals (H04N 9/77 takes precedence) [4] |
|
| H04N 9/65 | UGR2 | | . . | for synchronous modulators [4] |
|
| H04N 9/66 | UGR2 | | . . | for synchronous demodulators [4] |
|
| H04N 9/67 | UGR2 | |
| H04N 9/68 | UGR2 | | . . | for controlling the amplitude of colour signals, e.g. automatic chroma control circuits (H04N 9/71, H04N 9/73 take precedence) [4] |
|
| H04N 9/69 | UGR3 | | . . . | for modifying the colour signals by gamma correction [4] |
|
| H04N 9/70 | UGR2 | | . . | for colour killing [4] |
|
| H04N 9/71 | UGR3 | | . . . | combined with colour gain control [4] |
|
| H04N 9/72 | UGR2 | | . . | for reinsertion of dc and slowly varying components of colour signals [4] |
|
| H04N 9/73 | UGR2 | | . . | colour balance circuits, e.g. white balance circuits, colour temperature control [4] |
|
| H04N 9/74 | UGR2 | |
| H04N 9/75 | UGR3 | |
| H04N 9/76 | UGR3 | | . . . | for mixing of colour signals (H04N 9/75 takes precedence) [4] |
|
| H04N 9/77 | UGR1 | | . | Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase (circuits for matrixing H04N 9/67) [4] |
|
| H04N 9/78 | UGR2 | | . . | for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter [4] |
|
| H04N 9/79 | UGR1 | | . | Processing of colour television signals in connection with recording [4] |
|
| H04N 9/793 | UGR2 | | . . | for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits [6] |
|
| H04N 9/797 | UGR2 | | . . | for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal (H04N 9/804, H04N 9/81, H04N 9/82 take precedence) [6] |
|
| H04N 9/80 | UGR2 | | . . | Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback [4] |
|
| H04N 9/802 | UGR3 | |
| H04N 9/804 | UGR3 | | . . . | involving pulse code modulation of the colour picture signal components [6] |
|
| H04N 9/806 | UGR4 | | . . . . | with processing of the sound signal [6] |
|
| H04N 9/808 | UGR3 | | . . . | involving pulse code modulation of the composite colour video-signal [6] |
|
| H04N 9/81 | UGR3 | | . . . | the individual colour picture signal components being recorded sequentially only [4] |
|
| H04N 9/815 | UGR4 | | . . . . | the luminance signal and the sequential colour component signals being recorded in separate recording channels [6] |
|
| H04N 9/82 | UGR3 | | . . . | the individual colour picture signal components being recorded simultaneously only [4] |
|
| H04N 9/825 | UGR4 | | . . . . | the luminance and chrominance signals being recorded in separate channels [6] |
|
| H04N 9/83 | UGR4 | | . . . . | the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal [4] |
|
| H04N 9/835 | UGR5 | | . . . . . | involving processing of the sound signal [6] |
|
| H04N 9/84 | UGR5 | | . . . . . | the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency [4] |
|
| H04N 9/85 | UGR4 | | . . . . | the recorded brightness signal occupying a frequency band totally overlapping the frequency band of the recorded chrominance signal, e.g. frequency interleaving [4] |
|
| H04N 9/86 | UGR3 | | . . . | the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system [4] |
|
| H04N 9/87 | UGR2 | | . . | Regeneration of colour television signals (H04N 9/80 takes precedence) [4] |
|
| H04N 9/873 | UGR3 | | . . . | for restoring the colour component sequence of the reproduced signal [6] |
|
| H04N 9/877 | UGR3 | | . . . | by assembling picture element blocks in an intermediate memory [6] |
|
| H04N 9/88 | UGR3 | | . . . | Signal drop-out compensation [4] |
|
| H04N 9/882 | UGR4 | | . . . . | the signal being a composite colour television signal [6] |
|
| H04N 9/885 | UGR5 | | . . . . . | using a digital intermediate memory [6] |
|
| H04N 9/888 | UGR4 | | . . . . | for signals recorded by pulse code modulation (error detection or correction of digital signals for recording in general G11B 20/18) [6] |
|
| H04N 9/89 | UGR3 | | . . . | Time-base error compensation [4] |
|
| H04N 9/893 | UGR4 | | . . . . | using an analogue memory, e.g. a CCD-shift register, the delay of which is controlled by a voltage controlled oscillator [6] |
|
| H04N 9/896 | UGR4 | | . . . . | using a digital memory with independent write-in and read-out clock generators [6] |
|
| H04N 9/898 | UGR3 | | . . . | using frequency multiplication of the reproduced colour signal with another auxiliary reproduced signal, e.g. a pilot signal carrier [6] |
|
| H04N 11/00 | HGR | Colour television systems (details H04N 9/00; stereoscopic H04N 15/00) [4] |
| H04N 11/02 | UGR1 | | . | with bandwidth reduction (H04N 11/04 takes precedence) [4] |
|
| H04N 11/04 | UGR1 | | . | using pulse code modulation [4] |
|
| H04N 11/06 | UGR1 | | . | Transmission systems characterised by the manner in which the individual colour picture signal components are combined [4] |
|
| H04N 11/08 | UGR2 | | . . | using sequential signals only (dot sequential systems H04N 11/12) [4] |
|
| H04N 11/10 | UGR3 | | . . . | in which colour signals are inserted in the blanking interval of brightness signal [4] |
|
| H04N 11/12 | UGR2 | | . . | using simultaneous signals only [4] |
|
| H04N 11/14 | UGR3 | | . . . | in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system [4] |
|
| H04N 11/16 | UGR4 | | . . . . | the chrominance signal alternating in phase, e.g. PAL-system [4] |
|
| H04N 11/18 | UGR2 | | . . | using simultaneous and sequential signals, e.g. SECAM-system [4] |
|
| H04N 11/20 | UGR2 | | . . | Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards [4] |
|
| H04N 11/22 | UGR3 | | . . . | in which simultaneous signals are converted into sequential signals or vice versa [4] |
|
| H04N 11/24 | UGR1 | | . | High-definition television systems [6] |
|
| H04N 13/00 | HGR | Stereoscopic television systems; Details thereof (specially adapted for colour television H04N 15/00) [4] |
| H04N 13/02 | UGR1 | | . | Picture signal generators [4] |
|
| H04N 13/04 | UGR1 | |
| H04N 15/00 | HGR | Stereoscopic colour television systems; Details thereof [4] |
| H04N 17/00 | HGR | Diagnosis, testing or measuring for television systems or their details [4] |
| H04N 17/02 | UGR1 | | . | for colour television signals [4] |
|
| H04N 17/04 | UGR1 | |
| H04N 17/06 | UGR1 | |
|
| H04N 101/00 | HGR | Still video cameras [6] |