System and method for video and audio encoding on a single chip

• US 20040161032A1
• Filed: 02/10/2004
• Published: 08/19/2004
• Est. Priority Date: 04/06/1999
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Yavits, Leonid, Chernov, Gregory, Oxman, Gadi, Spektor, Evgeny, Khrapkovsky, Michael, Morad, Amir
• Application Number:
  US10/776,541
• Publication Number:
  US 20040161032A1
• Time in Patent Office: Days
• US Class Current: 375/240.01
• CPC Class Codes: H04N 19/42 characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation H04N19/635 takes precedence
• CPC Class Codes: H04N 19/436 using parallelised computational arrangements
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 21/2368 Multiplexing of audio and video streams
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4341 Demultiplexing of audio and video streams

Abstract

An apparatus is disclosed for performing real time video/audio/data encoding on a single chip. Within the single chip, a video encoder generates encoded video data from uncompressed video data and an audio encoder generates encoded audio data from uncompressed audio data. A mux processor within the single chip generates an output stream of encoded data from the encoded video data and the encoded audio data and the sliced user data.

Claims

1. A single chip digital signal processing apparatus for real time video/audio/data encoding, said apparatus comprising:

a video encoder for generating encoded video data from uncompressed video data;

an audio encoder for generating encoded audio data from uncompressed audio data; and

a mux processor to generate a multiplexed output stream of data from said encoded video data and said encoded audio data and said encoded user data.

2. The apparatus of claim 1 wherein encoding parameters of said video encoder and said audio encoder and said data encoder are programmable.

3. The apparatus of claim 1 further comprising a digital video broadcasting (DVB) formatter to generate a DVB interface signal to transmit encoded data directly from said single chip to another chip without the aid of an intermediate interface external to said single chip.

4. The apparatus of claim 1 further comprising a PCI interface comprising a DMA engine for transferring at least one of compressed and uncompressed data to and from said single chip, to directly communicate with a PCI bus without the aid of an intermediate interface external to said single chip.

5. The apparatus of claim 1 further comprising a 12C/GPIO interface that may be programmed to allow said single chip to communicate with other devices external to said single chip using an 12C protocol or some other general interface protocol.

6. The video encoder of claim 1 further comprising a video blanking interval (VBI) and picture interval extractor to extract and format user data embedded in a VBI and picture interval of said uncompressed video data into an encoded data stream.

7. The apparatus of claim 1 wherein said uncompressed video data and said uncompressed audio data are encoded with either MPEG-1 or MPEG-2 standards and Dolby AC-3.

8. The apparatus of claim 1 wherein said uncompressed video data comprises CCIR-656 video data.

9. The apparatus of claim 1 wherein said uncompressed audio data comprises one of 12S audio data and AC97 audio data.