Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing SafiledCriticalThomson Licensing Sa
Publication of MY137333ApublicationCriticalpatent/MY137333A/en
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo
(AREA)
Abstract
A CONCATENATED EQUALIZER/TRELLIS DECODING SYSTEM FOR USE IN PROCESSING A HIGH DEFINITION TELEVISION SIGNAL. THE RE-ENCODED TRELLIS DECODER OUTPUT (6), RATHER THAN THE EQUALIZER OUTPUT (19), IS USED AS AN INPUT TO THE FEEDBACK FILTER (8) OF THE DECISION FEEDBACK EQUALIZER (4). HARD OR SOFT DECISION TRELLIS DECODING MAY BE APPLIED. IN ORDER TO ACCOUNT FOR THE LATENCY ASSOCIATED WITH TRELLIS DECODING AND THE PRESENCE OF TWELVE INTERLEAVED DECODERS, FEEDBACK FROM THE TRELLIS DECODER TO THE EQUALIZER IS PERFORMED BY REPLICATING THE TRELLIS DECODER AND EQUALIZER HARDWARE IN A MODULE (1) THAT CAN BE CASCADED IN AS MANY STAGES AS NEEDED TO ACHIEVE THE DESIRED BALANCE BETWEEN COMPLEXITY AND PERFORMANCE. THE PRESENT SYSTEM OFFERS AN IMPROVEMENT OF BETWEEN 0.6 AND 1.9 DECIBELS. CASCADING OF TWO MODULES (1) IS USUALLY SUFFICIENT TO ACHIEVE MOST OF THE POTENTIAL PERFORMANCE IMPROVEMENT.
MYPI200314272002-04-162003-04-16Concatenated equalizer/trellis decoder architecture for an hdtv receiver
MY137333A
(en)
Audio decoding system and an audio decoding method thereof for compressing and storing decoded audio data in a first time interval and decompressing the stored audio data in a second time interval