IPC-Stelle: H04J 3/14 [Version 2017.01]

SymbolTypTitel
HSKELECTRICITY
H04KLELECTRIC COMMUNICATION TECHNIQUE
H04JUKLMULTIPLEX COMMUNICATION (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)
H04J 1/00HGRFrequency-division multiplex systems (H04J 14/02 takes precedence) [1, 5, 2006.01]
H04J 1/02UGR1
.Details [1, 2006.01]
H04J 1/04UGR2
. .Frequency-transposition arrangements [1, 2006.01]
H04J 1/05UGR3
. . .using digital techniques [3, 2006.01]
H04J 1/06UGR2
. .Arrangements for supplying the carrier waves [1, 2006.01]
H04J 1/08UGR2
. .Arrangements for combining channels [1, 2006.01]
H04J 1/10UGR2
. .Intermediate station arrangements, e.g. for branching, for tapping-off [1, 2006.01]
H04J 1/12UGR2
. .Arrangements for reducing cross-talk between channels [1, 2006.01]
H04J 1/14UGR2
. .Arrangements providing for calling or supervisory signals [1, 2006.01]
H04J 1/16UGR2
. .Monitoring arrangements [1, 2006.01]
H04J 1/18UGR1
.in which all the carriers are amplitude-modulated (H04J 1/02 takes precedence) [1, 3, 2006.01]
H04J 1/20UGR1
.in which at least one carrier is angle-modulated (H04J 1/02 takes precedence) [1, 3, 2006.01]
H04J 3/00HGRTime-division multiplex systems (H04J 14/08 takes precedence) [1, 4, 5, 2006.01]
H04J 3/02UGR1
.Details [1, 2006.01]
H04J 3/04UGR2
. .Distributors combined with modulators or demodulators [1, 2006.01]
H04J 3/06UGR2
. .Synchronising arrangements [1, 2006.01]
H04J 3/07UGR3
. . .using pulse stuffing for systems with different or fluctuating information rates [3, 2006.01]
H04J 3/08UGR2
. .Intermediate station arrangements, e.g. for branching, for tapping-off [1, 2006.01]
H04J 3/10UGR2
. .Arrangements for reducing cross-talk between channels [1, 2006.01]
H04J 3/12UGR2
. .Arrangements providing for calling or supervisory signals [1, 2006.01]
H04J 3/14UGR2
. .Monitoring arrangements [1, 2006.01]
H04J 3/16UGR1
.in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted (H04J 3/17, H04J 3/24 take precedence) [1, 4, 2006.01]
H04J 3/17UGR1
.in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI [4, 2006.01]
H04J 3/18UGR1
.using frequency compression and subsequent expansion of the individual signals [1, 2006.01]
H04J 3/20UGR1
.using resonant transfer [2, 2006.01]
H04J 3/22UGR1
.in which the sources have different rates or codes [4, 2006.01]
H04J 3/24UGR1
.in which the allocation is indicated by an address (H04J 3/17 takes precedence) [4, 2006.01]
H04J 3/26UGR2
. .in which the information and the address are simultaneously transmitted [4, 2006.01]
H04J 4/00HGRCombined time-division and frequency-division multiplex systems (H04J 13/00 takes precedence) [2, 2006.01]
H04J 7/00HGRMultiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels [1, 2006.01]
H04J 7/02UGR1
.in which the polarity of the amplitude is characteristic [1, 2006.01]
H04J 9/00HGRMultiplex systems in which each channel is represented by a different type of modulation of the carrier [1, 2006.01]
H04J 11/00HGROrthogonal multiplex systems (H04J 13/00 takes precedence) [2, 2006.01]
H04J 13/00HGRCode division multiplex systems (for frequency hopping H04B 1/713) [2, 2006.01, 2011.01]
H04J 13/10UGR1
.Code generation [2011.01]
H04J 13/12UGR2
. .Generation of orthogonal codes [2011.01]
H04J 13/14UGR2
. .Generation of codes with a zero correlation zone [2011.01]
H04J 13/16UGR1
.Code allocation [2011.01]
H04J 13/18UGR2
. .Allocation of orthogonal codes [2011.01]
H04J 13/20UGR3
. . .having an orthogonal variable spreading factor [OVSF] [2011.01]
H04J 13/22UGR2
. .Allocation of codes with a zero correlation zone [2011.01]
H04J 14/00HGROptical multiplex systems [5, 2006.01]
H04J 14/02UGR1
.Wavelength-division multiplex systems [5, 2006.01]
H04J 14/04UGR1
.Mode multiplex systems [5, 2006.01]
H04J 14/06UGR1
.Polarisation multiplex systems [5, 2006.01]
H04J 14/08UGR1
.Time-division multiplex systems [5, 2006.01]
H04J 99/00HGRSubject matter not provided for in other groups of this subclass [2009.01]