Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Patent
1996-04-09
1998-11-17
Marcelo, Melvin
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
348555, 371 434, H04N 546
Patent
active
058387293
ABSTRACT:
An adaptive trellis decoder seamlessly switches between multiple operational modes. The decoder switches between multiple modes and accommodates data type transitions using a single state transition trellis with a predetermined number of states. The system decodes trellis encoded video data encoded in different formats respectively containing different numbers of levels associated with different modes. The decoder system adaptively operates in response to a configuration signal distinguishing between the modes, and employs a state transition trellis with the same number of trellis decoding states for decoding encoded data of different formats. The state transition decoding trellis may also be reset to a predetermined state in response to a synchronization signal generated as a result of a transition from one type of data to another or in response to a mode change.
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Caldwell Maurice David
Hu Keren
Lin William Wei-Lian
Burke Alexander J.
Kurdyla Ronald H.
Marcelo Melvin
Thomson Multimedia S.A.
Tripoli Joseph S.
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