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公开(公告)号：AU1981602A
公开(公告)日：2002-06-03
申请号：AU1981602
申请日：2001-11-16
Applicant: QUALCOMM INC
Inventor： KANG INYUP
IPC: H04B1/7117 , H04B1/712 , H04B1/707
Abstract: A deskew buffer 410 arrangement in a CDMA receiver allows for accurate combining of symbols from a plurality of demodulator fingers, 402 and 404, without any symbol losses when the data rate is changed. A single deskew buffer 410 is coupled to a plurality of demodulator fingers, each of which demodulate an assigned multipath. The symbols are written into the deskew buffer 410 according to a PN count value modified by a predetermined bit pattern. The demodulator finger is able to demodulate a plurality of data rates corresponding to a plurality of Walsh lengths. Each data rate is assigned a corresponding deskew index. The PN count value represents an address within the deskew buffer 410. The lower bits of the PN count, where the number of bits corresponds to the deskew index, are truncated and replaced with the predetermined bit pattern. In one embodiment the predetermined bit pattern is all ones.
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公开(公告)号：ID29846A
公开(公告)日：2001-10-18
申请号：ID20010804
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： KANG INYUP , SIH GILBERT C , ZOU QIUZHEN
Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location comprising the steps of receiving signal samples, generating a coarse acquisition sequence, rotating the coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying the rotated coarse acquisition sequence to the signal samples at a set of time offsets yielding correlated output data.
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公开(公告)号：ID28458A
公开(公告)日：2001-05-24
申请号：ID20010800
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： GARDNER WILLIAM , AGRAWAL AVNEESH , SIH GILBERT C , ZOU QIUZHEN , KANG INYUP
IPC: G01S19/30 , G01S1/00 , G01S5/00 , G01S5/14 , G01S19/23 , G01S19/24 , G01S19/25 , G01S19/29 , G01S19/37 , H04Q7/34 , H04Q7/38 , G01S1/04
Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment comprises a method for performing position location in a wireless communication system using a set of signals transmitted from a set of satellites including the steps of receiving signal samples, rotating an acquisition code by a first rotation amount yielding a rotated acquisition code, despreading said signal samples using rotated acquisition code yielding despread data, accumulating said despread data over a first duration yielding partially accumulated data, rotating said partially accumulated data by a second rotation amount yielding rotated data and accumulating said rotated data.
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公开(公告)号：FI20010417A
公开(公告)日：2001-03-02
申请号：FI20010417
申请日：2001-03-02
Applicant: QUALCOMM INC
Inventor： KANG INYUP , SIH GILBERT C , ZOU QIUZHEN
Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location comprising the steps of receiving signal samples, generating a coarse acquisition sequence, rotating the coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying the rotated coarse acquisition sequence to the signal samples at a set of time offsets yielding correlated output data.
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公开(公告)号：AU6243699A
公开(公告)日：2000-03-27
申请号：AU6243699
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： ZOU QUIZHEN , SIH GILBERT C , KANG INYUP
IPC: G01S1/00 , G01S1/04 , G01S5/00 , G01S19/23 , G01S19/25 , G01S19/30 , G01S19/48 , H04M1/725 , H04Q7/34 , G01S5/14
Abstract: A mobile device (10) comprises a receiver and a coherent integrator (104), wherein the receiver is configured to receive a first signal from a satellite, the first signal including a navigation message. The coherent integrator is configured to coherently integrate first signal samples for a particular coherent integration interval. When the coherent integration interval straddles a data boundary of the navigation message, the coherent integration is divided into a section before the data boundary of the navigation message and a section after the data boundary of the navigation message
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Patent Agency Ranking
公开(公告)号：AT518297T
公开(公告)日：2011-08-15
申请号：AT02794097
申请日：2002-11-27
Applicant: QUALCOMM INC
Inventor： SEVERSON MATTHEW , KANG INYUP , RAGHUPATHY ARUN
Abstract: A method and device for converting at least one narrow band RF signal, being suitable for transmission between at least one communications device suitable for receiving wide-band RF signals and at least one base station, to baseband. The method includes directly down-converting a signal spectrum including the at least one RF narrow-band signal to baseband such that the at least one narrow-band RF signal results at a low intermediate frequency (IF). And, digitally phase rotating the down-converted signal spectrum such that the at least one narrow-band RF signal is phase rotated from the low-IF to baseband.
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47.发明专利
公开(公告)号：DE69943231D1
公开(公告)日：2011-04-07
申请号：DE69943231
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： KANG INYUP , ZOU QUIZHEN , SIH GILBERT C
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公开(公告)号：AT499617T
公开(公告)日：2011-03-15
申请号：AT08013899
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： KANG INYUP , ZOU QUIZHEN , SIH GILBERT C
IPC: G01S5/00 , G01S1/00 , G01S1/04 , G01S19/23 , G01S19/25 , G01S19/30 , G01S19/48 , H04M1/725 , H04Q7/34
Abstract: A mobile device (10) comprises a receiver and a coherent integrator (104), wherein the receiver is configured to receive a first signal from a satellite, the first signal including a navigation message. The coherent integrator is configured to coherently integrate first signal samples for a particular coherent integration interval. When the coherent integration interval straddles a data boundary of the navigation message, the coherent integration is divided into a section before the data boundary of the navigation message and a section after the data boundary of the navigation message
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公开(公告)号：CA2427153C
公开(公告)日：2010-03-30
申请号：CA2427153
申请日：2001-10-25
Applicant: QUALCOMM INC
Inventor： KANG INYUP
Abstract: An efficient turbo decoder. The disclosed turbo decoder includes a first mode of operation in which the turbo decoder uses a first functional loop. The first functional loop includes a memory bank, a read interleaver, a first multiplexer (MUX), a RAM file, a log-MAP decoder, a write interleaver, and a second MUX. The disclosed turbo decoder further includes a second mode of operation in which a second functional loop is used. The second functional loop includes the memory bank, the first MUX, the RAM file, the log-MAP decoder, and the second MUX. The memory bank is a dual port extrinsic memory. The disclosed turbo decoder circuit switches between the first mode and the second mode. Also provides a method of turbo encoding and an apparatus for turbo encoding.
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公开(公告)号：AT440295T
公开(公告)日：2009-09-15
申请号：AT99946742
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： SIH GILBERT , ZOU QIUZHEN , KANG INYUP , FEVRIER IAN
Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment comprises a method for performing position location using a set of signals transmitted from a set of satellites including the steps of storing coarse search data, performing a coarse search on said coarse search data for each satellite from said set of satellites, receiving fine search data, performing a set of fine searches on said fine search data, each fine search being performed on a different time segment of said fine search data, and reporting results.
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