-
公开(公告)号:DK0970566T3
公开(公告)日:2003-09-22
申请号:DK98913060
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:AU7096600A
公开(公告)日:2001-03-26
申请号:AU7096600
申请日:2000-08-30
Applicant: QUALCOMM INC
Inventor: VEROLI MAURIZIO DI , BAR-DAVID AYAL
-
公开(公告)号:AU2003216102B2
公开(公告)日:2008-04-03
申请号:AU2003216102
申请日:2003-01-24
Applicant: QUALCOMM INC
Inventor: BAR-DAVID AYAL , BENCHETRIT URI , RIMONI YORAM
IPC: H04Q3/76 , H04M1/26 , H04M1/27 , H04M1/2745 , H04M1/725 , H04M3/00 , H04M3/42 , H04M3/44 , H04M11/00 , H04Q7/38
Abstract: A method for dialing a telephone number indirectly, including obtaining an alphanumeric identifier that is assigned to a telephone subscriber and associating the identifier with a destination telephone number of the telephone subscriber to form a mapping therebetween. The method further includes storing the mapping in a lookup table, dialing the identifier using an originating telephone, using the identifier as a pointer to the lookup table so as to recover the destination telephone number from the stored mapping, and establishing a connection between the originating telephone and a destination telephone via the destination telephone number.
-
公开(公告)号:CA2474573A1
公开(公告)日:2003-08-07
申请号:CA2474573
申请日:2003-01-24
Applicant: QUALCOMM INC
Inventor: BENCHETRIT URI , RIMONI YORAM , BAR-DAVID AYAL
IPC: H04M1/26 , H04M1/27 , H04M1/2745 , H04M1/725 , H04M3/00 , H04M3/42 , H04M3/44 , H04M11/00 , H04Q3/76 , H04Q7/38 , H04Q7/20
Abstract: A method for dialing a telephone number indirectly, including obtaining an alphanumeric identifier (18, 20, 24) that is assigned to a telephone subscriber (16) and associating the identifier (18, 20, 24) with a destination telephone number (14) of the telephone subscriber (16) to form a mapping therebetween. The method further includes storing the mapping in a lookup table (22), dialing the identifier using an originating telephone (30), using the identifier (18, 20, 24) as a pointer to the lookup table (22) so as to recover the destination telephone number (14) from the stored mapping, and establishing a connection between the originating telephone (30) and a destination telephone (12) via the destination telephone number (14).
-
公开(公告)号:ID24973A
公开(公告)日:2000-08-31
申请号:ID991074
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:FI118240B
公开(公告)日:2007-08-31
申请号:FI19991971
申请日:1999-09-16
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:ES2203938T3
公开(公告)日:2004-04-16
申请号:ES98913060
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:DE69815087D1
公开(公告)日:2003-07-03
申请号:DE69815087
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:DE69815087T2
公开(公告)日:2004-04-01
申请号:DE69815087
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
公开(公告)号:AT241874T
公开(公告)日:2003-06-15
申请号:AT98913060
申请日:1998-03-20
Applicant: QUALCOMM INC
Inventor: STEIN JEREMY M , BAR-DAVID AYAL
Abstract: A method and apparatus for decoding a frame of multi-rate encoded digital data which contains redundant information provided to validate the decoding operation. A frame of data is received which contains information bits and cyclic redundancy check (CRC) bits. In accordance with the invention, the received frame is decoded and a check is conducted to determine whether the CRC bits correspond correctly for the decoded information bits. If the decoded frame passes the CRC test process, the decoded fame is provided to the user. However, if the decoded frame does not pass the CRC test, then at least one additional decoding process is performed on the received frame. In the first exemplary embodiment of the present invention, on a failure of the CRC check, the data is decoded using a trellis decoder and the data that yields the next most likely path through the trellis is selected. In a second illustrative embodiment, if the CRC test fails, the trellis decoder then identifies all paths having metrics within a predetermined threshold of a metric associated with the optimal path through the trellis. The CRC test is then performed on the decoded frame with respect to the suboptimal paths (starting with the most likely path). If any of these paths pass the CRC check, the information bits are output by the decoder. If not, an error is declared.
-
-
-
-
-
-
-
-
-