William Y Lin

US Patent:

59149884, Jun 22, 1999

Filed:

Apr 9, 1996

Appl. No.:

8/629681

Inventors:

Keren Hu - Plainsboro NJ
William Wei-Lian Lin - East Windsor NJ
Maurice David Caldwell - Plainsboro NJ

Assignee:

Thomson Multimedia S.A.

International Classification:

H04L 2706

US Classification:

375341

Abstract:

An adaptive trellis decoder system employs a state transition trellis with a predetermined number of states for decoding a group of interleaved data packets. The trellis decoder system also accommodates data interruptions and transitions between different types of data. The system decodes groups of interleaved trellis encoded data packets with a single trellis decoder in response to a synchronization signal derived from the interleaved encoded data. The decoder employs a state transition trellis with a predetermined number of states. The state transition trellis may be reset to a predetermined state in response to a detected synchronization interval in the encoded data. The decoder may also decode re-aligned data produced by removing intervening synchronization intervals from the interleaved encoded data, in response to a detected synchronization interval.

US Patent:

58414789, Nov 24, 1998

Filed:

Apr 9, 1996

Appl. No.:

8/629673

Inventors:

Keren Hu - Plainsboro NJ
William Wei-Lian Lin - East Windsor NJ
Maurice David Caldwell - Plainsboro NJ

Assignee:

Thomson multimedia, S.A.

International Classification:

H04N 521

US Classification:

348426

Abstract:

An adaptive trellis decoder seamlessly switches between multiple operational modes. The trellis decoder employs a code sequence detection system that detects codes in input interleaved packet data. The code sequence detection system also reduces the delay (latency) between the input of encoded data and the output of decoded data. The code sequence detection system processes video data in the form of groups of interleaved trellis encoded data packets and includes a traceback network that identifies a sequence of antecedent trellis states, in accordance with a state transition trellis. The traceback network identifies the antecedent states for collocated interleaved packets in response to decision data associated with trellis state transitions. Output trellis decoded data is provided in response to the identified sequence of antecedent trellis states. The decoder can also provide a plurality of trellis decoded data sequences.

US Patent:

58387293, Nov 17, 1998

Filed:

Apr 9, 1996

Appl. No.:

8/629680

Inventors:

Keren Hu - Plainsboro NJ
William Wei-Lian Lin - East Windsor NJ
Maurice David Caldwell - Plainsboro NJ

Assignee:

Thomson multimedia, S.A.

International Classification:

H04N 546

US Classification:

375265

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.

US Patent:

58418199, Nov 24, 1998

Filed:

Apr 9, 1996

Appl. No.:

8/629672

Inventors:

Keren Hu - Plainsboro NJ
William Wei-Lian Lin - East Windsor NJ
Maurice David Caldwell - Plainsboro NJ

Assignee:

Thomson multimedia, S.A.

International Classification:

G06F 1110
H03M 1312

US Classification:

375341

Abstract:

An adaptive trellis decoder seamlessly switches between multiple input signal formats. The trellis decoder employs a code sequence detection system, described in the context of an exemplary Viterbi decoding system, that detects codes in an input interleaved packet data signal. The code sequence detection system also reduces the delay (latency) between the input of encoded data and the output of decoded data. The code sequence detection system provides branch metric values in response to the input interleaved packet data signal which exhibits one of a plurality of signal formats, e. g. , partial response and normal formats. A Viterbi decoder decodes the packet data signal to produce a decoded output in response to the branch metric values which include a substantially replicated value associated with one of the formats. The Viterbi decoder includes a comparison network that provides decision data in response to branch metric values associated with the trellis encoded data packets. The decision data is organized by trellis state and by data packet and is associated with trellis state transitions.

Address:

226 Jamaicaway APT 9, Jamaica Plain, MA 02130

Phone:

6179130305

VIN:

WBAKF9C57BE247215

Make:

BMW

Model:

3 SERIES

Year:

2011