TREA

Transmission systems not characterised by the medium used for transmission

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Industry

  • CPC
  • H04B14/00
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Parent Industries

HELECTRICITY H04Electric communication H04BTRANSMISSION

Current Industry

H04B14/00Transmission systems not characterised by the medium used for transmission

Sub Industries

H04B14/002characterised by the use of a carrier modulation H04B14/004Amplitude modulation H04B14/006Angle modulation H04B14/008Polarisation modulation H04B14/02characterised by the use of pulse modulation H04B14/023using pulse amplitude modulation H04B14/026using pulse time characteristics modulation H04B14/04using pulse code modulation H04B14/042Special circuits H04B14/044Sample and hold circuits H04B14/046Systems or methods for reducing noise or bandwidth H04B14/048Non linear compression or expansion H04B14/06Using differential modulation H04B14/062using delta modulation or one-bit differential modulation [1DPCM] H04B14/064with adaptive feedback H04B14/066using differential modulation with several bits [NDPCM] H04B14/068with adaptive feedback H04B14/08characterised by the use of a sub-carrier
Industries