公开(公告)号：ZA9407317B

公开(公告)日：1995-05-10

申请号：ZA9407317

申请日：1994-09-20

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHARAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B ,  H03M ,  H04J

CPC classification number: H03M13/3776 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04B2201/70703 ,  H04L1/0009 ,  H04L1/0032 ,  H04L1/0046 ,  H04L1/0052 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/20 ,  H04L1/208 ,  H04L25/0262 ,  H04L25/03178

公开(公告)号：PT720797E

公开(公告)日：2002-05-31

申请号：PT94929870

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  WOLF JACK KEIL ,  ZEHAVI EPHRAIM

IPC: H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L1/12 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/26 ,  H03M13/00

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：HK1015213A1

公开(公告)日：1999-10-08

申请号：HK98116177

申请日：1998-12-28

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04L ,  H04B ,  H03M

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：AU682542B2

公开(公告)日：1997-10-09

申请号：AU7877794

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/26 ,  H03M13/00

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：AU7877794A

公开(公告)日：1995-04-10

申请号：AU7877794

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/26 ,  H03M13/00

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：CA2171220C

公开(公告)日：2003-11-25

申请号：CA2171220

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/204 ,  H04Q7/22

Abstract: A Viterbi decoder (20) for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system (22). The d ecoder (20) simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder (20) can decod e at an unknown data rate in either continuous or framed packed modes. It accomplishes this by simultaneously decoding at multiple ra tes and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isola te the decoder (50) from system timing constraints. The input buffer (48) includes selection and accumulation logic to organize code symbo l data into the packet order for repeat mode or random b urst mode at lower frame data rates. Decoded data packets for each of several pre determined data transfer rates are held in an output buf fer (54) for about half of the decoding cycle, thereby permitting the system mic roprocessor to examine and select the appropriate decode d data packet. The decoder (50) also can be reconfigured to operate at any one of several predetermined convolutional encoding algorit hms The Viterbi decoder (20), implemented as a single monolithic integrated circ uit, can be used in anyand all of many different multiu ser telecommunications channels.

公开(公告)号：DK0720797T3

公开(公告)日：2002-02-25

申请号：DK94929870

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL ,  BUTLER BRIAN K

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H03M13/00 ,  H04B7/26

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：ZA947317B

公开(公告)日：1995-05-10

申请号：ZA947317

申请日：1994-09-20

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  KINDRED DANIEL RAY ,  ZEHAVI EPHARAIM ,  WOLF JACK KEIL

IPC: H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04L1/12 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B ,  H04J ,  H03M

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：CA2171220A1

公开(公告)日：1995-03-30

申请号：CA2171220

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/204 ,  H04Q7/22

Abstract: A Viterbi decoder (20) for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system (22). The decoder (20) simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder (20) can decode at an unknown data rate in either continuous or framed packed modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder (50) from system timing constraints. The input buffer (48) includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer (54) for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder (50) also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms The Viterbi decoder (20), implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.

公开(公告)号：ES2168313T3

公开(公告)日：2002-06-16

申请号：ES94929870

申请日：1994-09-23

Applicant: QUALCOMM INC

Inventor： KINDRED DANIEL RAY ,  BUTLER BRIAN K ,  ZEHAVI EPHRAIM ,  WOLF JACK KEIL

IPC: H04L1/12 ,  H03M13/23 ,  H03M13/37 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/20 ,  H04L25/02 ,  H04L25/03 ,  H04L25/08 ,  H04B7/26 ,  H03M13/00

Abstract: A Viterbi decoder for recovering the original bit data stream that was convolutionally encoded as a code symbol stream in a Code Division Multiple Access (CDMA) mobile communication system. The decoder simultaneously decodes at the several data rates associated with certain multirate vocoders. The decoder can decode at an unknown data rate in either continuous or framed packet modes. It accomplishes this by simultaneously decoding at multiple rates and by creating one or more data quality metrics for each decoded data packet. Special input and output buffering is provided to isolate the decoder from system timing constraints. The input buffer includes selection and accumulation logic to organize code symbol data into the packet order for repeat mode or random burst mode at lower frame data rates. Decoded data packets for each of several predetermined data transfer rates are held in an output buffer for about half of the decoding cycle, thereby permitting the system microprocessor to examine and select the appropriate decoded data packet. The decoder also can be reconfigured to operate at any one of several predetermined convolutional encoding algorithms. The Viterbi decoder, implemented as a single monolithic integrated circuit, can be used in any and all of many different multiuser telecommunications channels.