Intensity-stereo encoding in the transfer system and decoding

Intensity-stereo encoding in the transfer system and decoding

  • CN 1,096,619 A
  • Filed: 05/30/1990
  • Published: 12/21/1994
  • Est. Priority Date: 06/02/1989
  • Status: Abandoned Application
First Claim
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1. , a kind of digital transmission system, have a transmitter and a receiver, this system is in order to via sending medium to send the wideband digital sound signal of being made up of minimum first and second signal components, this transmitter comprises an encoder and conveyer, encoder has an analysis filtered device, thereby draw n sub-signal of a series of minimum two signal components for each signal component of filtering, conveyer is in order to transmit sub-signal via transmission medium, receiver then comprises sub-signal receiving system and a decoder, decoder has the synthetic filtering device to be mixed for the sub-signal with each minimum two signal component, thereby obtain the duplicate of first and second signal components, described digital transmission system is characterised in that, transmitter also comprises signal mixer unit and control signal generating means, the former mixes in order at least one the corresponding sub-signal with minimum first and second signal components, thereby draw compound sub-signal, the sub-signal indication control signal that the latter is mixing in order to a described minimum sub-signal that produces minimum two signal components of expression, also suitable described compound sub-signal and the described sub-signal indication control signal of transmitting of transmitter, receiver also comprises checkout gear and deriving means, checkout gear is in order to detect described sub-signal indication control signal, deriving means is in order to obtaining described composite signal from the signal of being received, and in order to obtain the sub-signal of described minimum first and second signal components from described compound sub-signal according to sub-signal indication control signal.

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