公开(公告)号：DE69320226D1

公开(公告)日：1998-09-17

申请号：DE69320226

申请日：1993-03-16

Applicant: GEN INSTRUMENT CORP

Inventor： KRAUSE EDWARD A ,  TOM ADAM ,  LIU VINCENT

IPC: G06T9/00 ,  H04N7/26 ,  H04N7/30

Abstract: A vector coding scheme for video transform coefficients is provided. A vector is generated to identify a group of coefficients from a block of transform coefficients that qualify for transmission according to predetermined criteria. In an illustrated embodiment, only coefficients having nonzero amplitudes are transmitted. The vector is encoded to provide a vector code word for transmission. The coefficients from the group qualifying for transmission are encoded to provide coefficient code words for transmission. The vector code word correlates the coefficient code words to coefficient locations in the block. In a preferred embodiment, the block is divided into a plurality of regions containing subsets of coefficients. A separate vector is transmitted for each region, correlating the coefficient code words to coefficient locations in the corresponding region of the block.

公开(公告)号：HK1013760A1

公开(公告)日：1999-09-03

申请号：HK98115014

申请日：1998-12-23

Applicant: GEN INSTRUMENT CORP

Inventor： SHEN PAUL ,  KRAUSE EDWARD A ,  TOM ADAM

IPC: H03M7/40 ,  G06T9/00 ,  H03M7/42 ,  H04L1/00 ,  H04N1/41 ,  H04N19/89 ,  H04N ,  H03M

Abstract: A method and apparatus are provided for decoding variable length codewords carried in data blocks. A first buffer is loaded with a succession of data blocks. A second buffer is loaded with a first data block from the first buffer during a decoding cycle. The variable length codewords from the first data block in the second buffer are decoded to recover information. The process continues, with the second buffer being loaded with one data block at a time to successively decode new data blocks during successive decoding cycles.

公开(公告)号：DE69320226T2

公开(公告)日：1999-04-15

申请号：DE69320226

申请日：1993-03-16

Applicant: GEN INSTRUMENT CORP

Inventor： KRAUSE EDWARD A ,  TOM ADAM ,  LIU VINCENT

IPC: G06T9/00 ,  H04N7/26 ,  H04N7/30

Abstract: A vector coding scheme for video transform coefficients is provided. A vector is generated to identify a group of coefficients from a block of transform coefficients that qualify for transmission according to predetermined criteria. In an illustrated embodiment, only coefficients having nonzero amplitudes are transmitted. The vector is encoded to provide a vector code word for transmission. The coefficients from the group qualifying for transmission are encoded to provide coefficient code words for transmission. The vector code word correlates the coefficient code words to coefficient locations in the block. In a preferred embodiment, the block is divided into a plurality of regions containing subsets of coefficients. A separate vector is transmitted for each region, correlating the coefficient code words to coefficient locations in the corresponding region of the block.

公开(公告)号：CA2102327A1

公开(公告)日：1994-05-20

申请号：CA2102327

申请日：1993-11-03

Applicant: GEN INSTRUMENT CORP

Inventor： SHEN PAUL ,  KRAUSE EDWARD A ,  TOM ADAM

IPC: H03M7/40 ,  G06T9/00 ,  H03M7/42 ,  H04L1/00 ,  H04N1/41 ,  H04N19/89 ,  H03M7/00

Abstract: A method and apparatus are provided for decoding variable length codewords carried in data blocks. A first buffer is loaded with a succession of data blocks. A second buffer is loaded with a first data block from the first buffer during a decoding cycle. The variable length codewords from the first data block in the second buffer are decoded to recover information. The process continues, with the second buffer being loaded with one data block at a time to successively decode new data blocks during successive decoding cycles.

公开(公告)号：DE69325969T2

公开(公告)日：2000-02-17

申请号：DE69325969

申请日：1993-11-11

Applicant: GEN INSTRUMENT CORP

Inventor： SHEN PAUL ,  KRAUSE EDWARD A ,  TOM ADAM

IPC: H03M7/40 ,  G06T9/00 ,  H03M7/42 ,  H04L1/00 ,  H04N1/41 ,  H04N19/89 ,  H04N7/32 ,  H04N7/24 ,  H04N7/30

Abstract: A method and apparatus are provided for decoding variable length codewords carried in data blocks. A first buffer is loaded with a succession of data blocks. A second buffer is loaded with a first data block from the first buffer during a decoding cycle. The variable length codewords from the first data block in the second buffer are decoded to recover information. The process continues, with the second buffer being loaded with one data block at a time to successively decode new data blocks during successive decoding cycles.

公开(公告)号：DE69325969D1

公开(公告)日：1999-09-16

申请号：DE69325969

申请日：1993-11-11

Applicant: GEN INSTRUMENT CORP

Inventor： SHEN PAUL ,  KRAUSE EDWARD A ,  TOM ADAM

IPC: H03M7/40 ,  G06T9/00 ,  H03M7/42 ,  H04L1/00 ,  H04N1/41 ,  H04N19/89 ,  H04N7/32 ,  H04N7/24 ,  H04N7/30

Abstract: A method and apparatus are provided for decoding variable length codewords carried in data blocks. A first buffer is loaded with a succession of data blocks. A second buffer is loaded with a first data block from the first buffer during a decoding cycle. The variable length codewords from the first data block in the second buffer are decoded to recover information. The process continues, with the second buffer being loaded with one data block at a time to successively decode new data blocks during successive decoding cycles.