Recherchebereich

Symbol Version, Sprache

Ergebnisbereich

Suchanfrage: Es wurde noch keine Recherche ausgeführt.

Symbol IPC-Stellen auswählen Titel
A
Hierarchie anzeigen
SECTION A — HUMAN NECESSITIES
B
Hierarchie anzeigen
SECTION B — PERFORMING OPERATIONSTRANSPORTING
C
Hierarchie anzeigen
SECTION C — CHEMISTRYMETALLURGY
D
Hierarchie anzeigen
SECTION D — TEXTILESPAPER
E
Hierarchie anzeigen
SECTION E — FIXED CONSTRUCTIONS
F
Hierarchie anzeigen
SECTION F — MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
G
Hierarchie anzeigen
SECTION G — PHYSICS
H
Hierarchie anzeigen
SECTION H — ELECTRICITY
H01
Hierarchie anzeigen
BASIC ELECTRIC ELEMENTS
H02
Hierarchie anzeigen
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03
Hierarchie anzeigen
BASIC ELECTRONIC CIRCUITRY
H04
Hierarchie anzeigen
ELECTRIC COMMUNICATION TECHNIQUE
H04B
Hierarchie anzeigen
TRANSMISSION (transmission systems for measured values, control or similar signals G08C; speech analysis or synthesis G10L; coding, decoding or code conversion, in general H03M; broadcast communication H04H; multiplex systems H04J; secret communication H04K; transmission of digital information H04L) [4]
H04B 1/00
Hierarchie anzeigen
Details of transmission systems, not covered by a single one of groups H04B 3/00-H04B 13/00Details of transmission systems not characterised by the medium used for transmission (tuning resonant circuits H03J) [4]
H04B 1/02
Hierarchie anzeigen
Transmitters (spatial arrangements of component circuits in radio pills for living beings A61B 5/07)
H04B 1/03
Hierarchie anzeigen
. . Constructional details, e.g. casings, housings [2]
H04B 1/034
Hierarchie anzeigen
. . . Portable transmitters [2]
H04B 1/036
Hierarchie anzeigen
. . . Cooling arrangements (cooling transformers H01F 27/08; cooling discharge tubes H01J 7/24, H01J 19/74) [2]
H04B 1/04
Hierarchie anzeigen
. . Circuits (of television transmitters H04N 5/38)
H04B 1/06
Hierarchie anzeigen
Receivers (control of amplification H03G; television receivers H04N 5/44, H04N 5/64)
H04B 1/08
Hierarchie anzeigen
. . Constructional details, e.g. cabinet
H04B 1/10
Hierarchie anzeigen
. . Means associated with receiver for limiting or suppressing noise or interference
H04B 1/12
Hierarchie anzeigen
. . . Neutralising, balancing, or compensation arrangements
H04B 1/14
Hierarchie anzeigen
. . . Automatic detuning arrangements
H04B 1/16
Hierarchie anzeigen
. . Circuits
H04B 1/18
Hierarchie anzeigen
. . . Input circuits, e.g. for coupling to an aerial or a transmission line (input circuits for amplifiers in general H03F; coupling networks between aerials or lines and receivers independent of the nature of the receiver H03H)
H04B 1/20
Hierarchie anzeigen
. . . for coupling gramophone pick-up, recorder output, or microphone to receiver
H04B 1/22
Hierarchie anzeigen
. . . for receivers in which no local oscillation is generated
H04B 1/24
Hierarchie anzeigen
. . . . the receiver comprising at least one semiconductor device having three or more electrodes
H04B 1/26
Hierarchie anzeigen
. . . for superheterodyne receivers (multiple frequency-changing H03D 7/16)
H04B 1/28
Hierarchie anzeigen
. . . . the receiver comprising at least one semiconductor device having three or more electrodes
H04B 1/30
Hierarchie anzeigen
. . . for homodyne or synchrodyne receivers (demodulator circuits H03D 1/22)
H04B 1/38
Hierarchie anzeigen
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H04B 1/40
Hierarchie anzeigen
. . Circuits
H04B 1/44
Hierarchie anzeigen
. . . Transmit/receive switching (in radar systems G01S; tubes therefor H01J 17/64; waveguide switches H01P 1/10) [2]
H04B 1/46
Hierarchie anzeigen
. . . . by voice-frequency signalsby pilot signals
H04B 1/48
Hierarchie anzeigen
. . . . in circuit for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
H04B 1/50
Hierarchie anzeigen
. . . using different frequencies for the two directions of communication
H04B 1/52
Hierarchie anzeigen
. . . . Hybrid arrangements, i.e. for transition from single-path two-way transmission to single transmission on each of two paths, or vice versa
H04B 1/54
Hierarchie anzeigen
. . . using the same frequency for both directions of communication (H04B 1/44 takes precedence)
H04B 1/56
Hierarchie anzeigen
. . . . with provision for simultaneous communication in both directions
H04B 1/58
Hierarchie anzeigen
. . . . Hybrid arrangements, i.e. for transition from single-path two-way transmission to single transmission on each of two paths, or vice versa
H04B 1/59
Hierarchie anzeigen
RespondersTransponders (relay systems H04B 7/14)
H04B 1/60
Hierarchie anzeigen
Supervising unattended repeaters
H04B 1/62
Hierarchie anzeigen
for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
H04B 1/64
Hierarchie anzeigen
. . Volume compression or expansion arrangements
H04B 1/66
Hierarchie anzeigen
for reducing bandwidth of signals (in speech analysis-synthesis techniques G10L 19/00; in pictorial communication systems H04N)for improving efficiency of transmission (H04B 1/68 takes precedence)
H04B 1/68
Hierarchie anzeigen
for wholly or partially suppressing the carrier or one side band [4]
H04B 1/69
Hierarchie anzeigen
Spread spectrum techniques in general (for code multiplex systems H04J 13/02) [6]
H04B 1/707
Hierarchie anzeigen
. . using direct sequence modulation [6]
H04B 1/713
Hierarchie anzeigen
. . using frequency hopping [6]
H04B 1/72
Hierarchie anzeigen
Circuits or components for simulating aerials, e.g. dummy aerial (dissipative waveguide terminations H01P 1/26)
H04B 1/74
Hierarchie anzeigen
for increasing reliability, e.g. using redundant or spare channels or apparatus [3]
H04B 1/76
Hierarchie anzeigen
Pilot transmitters or receivers for control of transmission or for equalising [3]
H04B 3/00
Hierarchie anzeigen
Line transmission systems (combined with near-field transmission systems H04B 5/00; constructional features of cables H01B 11/00)
H04B 5/00
Hierarchie anzeigen
Near-field transmission systems, e.g. inductive loop type
H04B 7/00
Hierarchie anzeigen
Radio transmission systems, i.e. using radiation field (H04B 10/00, H04B 15/00 take precedence)
H04B 10/00
Hierarchie anzeigen
Transmission systems employing beams of corpuscular radiation, or electromagnetic waves other than radio waves, e.g. light, infra-red (optical coupling, mixing or splitting G02B; light guides G02B 6/00; switching, modulation, demodulation of light beams G02B, G02F; devices or arrangements for the control, e.g. modulation, of light beams G02F 1/00; devices or arrangements for demodulating light, transferring the modulation or changing the frequency of light G02F 2/00; optical multiplex systems H04J 14/00) [5]
H04B 11/00
Hierarchie anzeigen
Transmission systems employing ultrasonic, sonic or infrasonic waves
H04B 13/00
Hierarchie anzeigen
Transmission systems characterised by the medium used for transmission, not provided for in groups H04B 3/00-H04B 11/00
H04B 14/00
Hierarchie anzeigen
Transmission systems not characterised by the medium used for transmission (details thereof H04B 1/00) [4]
H04B 15/00
Hierarchie anzeigen
Suppression or limitation of noise or interference (by means associated with receiver H04B 1/10)
H04B 17/00
Hierarchie anzeigen
MonitoringTesting [2]
H04H
Hierarchie anzeigen
BROADCAST COMMUNICATION (transmission in general H04B; multiplex communication H04J)
H04J
Hierarchie anzeigen
MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L 5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N 7/08; in exchanges H04Q 11/00; stereophonic systems H04S)
H04K
Hierarchie anzeigen
SECRET COMMUNICATIONJAMMING OF COMMUNICATION
H04L
Hierarchie anzeigen
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (typewriters B41J; order telegraphs, fire or police telegraphs G08B; visual telegraphy G08B, G08C; teleautographic systems G08C; ciphering or deciphering apparatus per seG09C; coding, decoding or code conversion, in general H03M; arrangements common to telegraphic and telephonic communication H04M; selecting H04Q) [4]
H04M
Hierarchie anzeigen
TELEPHONIC COMMUNICATION (counting mechanisms G06M; circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08; reels or other take-up devices for cords H02G 11/00; multiplex transmission between switching centres H04J; selecting arrangements H04Q; loudspeakers, microphones, gramophone pick-ups or like electromechanical transducers H04R)
H04N
Hierarchie anzeigen
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]
H04Q
Hierarchie anzeigen
SELECTING (switches, relays, selectors H01H; electronic switches H03K 17/00)
H04R
Hierarchie anzeigen
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERSDEAF-AID SETSPUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general B06B; transducers for measuring particular variables G01; transducers in clocks G04; producing sounds with frequency not determined by supply frequency G10K; transducers in recording or reproducing heads G11B; transducers in motors H02) [6]
H04S
Hierarchie anzeigen
STEREOPHONIC SYSTEMS (information storage on discs or tapes G11B; broadcast systems for the distribution of stereophonic information H04H 5/00; multiplex systems in general H04J) [3]
H05
Hierarchie anzeigen
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H99
Hierarchie anzeigen
SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]

Zu vergleichende IPC-Stelle: Es wurden im Verzeichnis noch keine IPC-Stellen für die Vergleichsansicht vorgemerkt. [Version , Sprache ]