Broadcom Corporation

Sony Corporation

Sony Electronics Inc

Lin Yin

Gregory H Efland

Jeff Z Guan

Alan G Corry

Yongbing Wan

Haixiang Liang

Kevin H Peterson

Larry C Yamano

Fengduo Hu

Gong-San Yu

Yuanjie Chen

Yew-Koon Tan

Ilya Stomakhin

Nino Pietro Ferrario

George A Papanicolaou

Meera Prahlad

Provided is a system and method for a modem including one or more processing paths. Also included is a number of interconnected modules sequentially arrayed along the one or more paths. Each module is configured to (i) process signals passed along the paths in accordance with the sequence and (ii) implement predetermined functions to perform the processing. Further, each of the modules has a particular degree of functional programmability and the degrees of functional programmability monotonically vary in accordance with the sequence.

Asymmetric digital subscriber line modem apparatus and methods therefor

Provided is a system and method for de-interleaving a data stream stored in a buffer having a plurality of memory locations. Each location has a memory width of (W) bytes and the data stream is formed of a number of data words each including (N) number of data bytes, and (N) is a non-integer multiple of the width (W). The method includes storing the data words into respective memory locations and appending each of the stored data words with number (X) of dummy bytes, a sum of (N)+(X) being an integer multiple of the width (W). The appended dummy bytes are then stored in the respective memory locations.

Method and system for copying DMA with separate strides by a modulo-n counter

The invention uses digital signal processing (DSP) techniques to synchronize an audio encoding process with a video synchronization signal. Namely, the encoder parameters of a DSP microchip are preset according to characteristics of an audio frame. A buffer temporarily stores the audio frame prior to sending it to an encoder. The buffer then transfers the frame in response to receiving a video synchronization signal in conjunction with authorization from a microprocessor. As such, the encoding sequence of the audio frame coincides with the video synchronization signal. Since the corresponding video frame is already slaved to the video synchronization signal, the audio samples are effectively processed in sequence with the video data. Prior to outputting the encoded audio frame to a multiplexor, the encoder sends a value to the microprocessor representing the difference between the end of the encoded audio frame and a second video synchronization signal. Those audio samples are ultimately discarded from the bitstream. Thus, synchronization is achieved by beginning and effectively ending the encoding processes of both the audio and video data, respectively, in sequence with a common video synchronization clock.

Start/stop audio encoder apparatus and method for synchronizing digital audio and video signals

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Fremont, CA, United States of America

Lin Yin