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公开(公告)号：CA2341853C
公开(公告)日：2005-08-02
申请号：CA2341853
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： ZOU QIUZHEN , SIH GILBERT C , KANG INYUP
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 said coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying said rotated coarse acquisition sequence to said signal samples at a set of time offsets yielding correlated output data.
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公开(公告)号：MXPA03003665A
公开(公告)日：2004-05-04
申请号：MXPA03003665
申请日：2001-10-25
Applicant: QUALCOMM INC
Inventor： KANG INYUP
Abstract: Un decodificador de turbo eficiente. El decodificador de turbo divulgado incluye un primer modo de operacion en el cual el decodificador de turbo utiliza un primer lazo funcional. El primer lazo funcional incluye un banco de memoria, un intercalador de lectura, un primer multiplexor (MUX), un archivo RAM, un decodificador de registro-Mapa, un intercalador de escritura, y un segundo MUX. El decodificador de turbo divulgado incluye ademas un segundo modo de operacion en el cual se utiliza un segundo lazo funcional. El segundo lazo funcional incluye el banco de memoria, el primer MUX, el archivo RAM, el decodificador de registro-Mapa, y el segundo MUX. El banco de memoria es una memoria extrinseca de puerto dual. El circuito divulgado del decodificador de turbo cambia entre el primer modo y el segundo modo.
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公开(公告)号：FI20040465A
公开(公告)日：2004-03-29
申请号：FI20040465
申请日：2004-03-29
Applicant: QUALCOMM INC
Inventor： SIH GILBERT C , ZOU QIUZHEN , KANG INYUP , FEVRIER IAN J
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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公开(公告)号：DE69904957T2
公开(公告)日：2004-01-08
申请号：DE69904957
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： GARDNER WILLIAM , AGRAWAL AVNEESH , SIH 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：AU2003223550A1
公开(公告)日：2003-10-27
申请号：AU2003223550
申请日：2003-04-09
Applicant: QUALCOMM INC
Inventor： HOLENSTEIN CHRISTIAN , KANG INYUP , SEVERSON MATTHEW
Abstract: A system and method for canceling DC offset for Mobile Station Modems having direct conversion architectures. The present invention is a fast acquiring DC offset cancellation block that provides rapid and accurate DC offset estimates and cancellation techniques to support direct conversion architectures. The fast acquiring DC offset cancellation block combines four mechanisms to rapidly acquire and remove a DC offset estimate after power up, temperature changes, receiver frequency changes, and gain setting changes by increasing high pass loop bandwidth and adjusting DC offset levels at baseband. After removing the DC offset in large portions, the high pass loop bandwidth is decreased to fine tune the previous estimate and to remove any small variation in DC offset due to receiver self-mixing products.
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Patent Agency Ranking
公开(公告)号：ES2192078T3
公开(公告)日：2003-09-16
申请号：ES99946743
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：AU2003213196A1
公开(公告)日：2003-09-09
申请号：AU2003213196
申请日：2003-02-21
Applicant: QUALCOMM INC
Inventor： ARCEO JULIO , HUSSEINI JALAL , LI TAO , MEAGHER BRUCE , HIGGINS RICHARD , OISHI MOTO , RODRIGUES BRIAN , WEI JIAN , KANG INYUP
IPC: G06F11/10 , G06F3/06 , G06F7/00 , G06F12/00 , G06F12/06 , G06F12/16 , G06F13/16 , G06F13/28 , G11C7/00 , G11C7/10 , G11C14/00 , G11C16/04 , H04B7/00
Abstract: Memory architectures and techniques that support direct memory swapping between NAND Flash and SRAM with error correction coding (ECC). In a specific design, a memory architecture includes a first storage unit (e.g., an SRAM) operative to provide storage of data, a second storage unit (e.g., a NAND Flash) operative to provide (mass) storage of data, an EMI unit implemented within an ASIC and operative to provide control signals for the storage units, and a data bus coupled to both storage units and the EMI unit. The two storage units are implemented external to the ASIC, and each storage unit is operable to store data from the other storage unit via the data bus when the other storage unit is being accessed by the EMI unit. The EMI unit may include an ECC unit operative to perform block coding of data transferred to/from the second storage unit.
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公开(公告)号：FI111665B
公开(公告)日：2003-08-29
申请号：FI20010418
申请日：2001-03-02
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
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：FI111664B
公开(公告)日：2003-08-29
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：CA2458790A1
公开(公告)日：2003-03-13
申请号：CA2458790
申请日：2002-08-30
Applicant: QUALCOMM INC
Inventor： JOHNSON BRENDON L , ROH MARK , KANG INYUP
IPC: H04B1/00 , H04B1/7075 , H04B1/7117 , H04B1/707
Abstract: In general, the invention facilitates searching for energy peaks in spread spectrum wireless communivation systems with greater precision. More particulary, various embodiments of the invention may involve reporting not only an energy peak and its associated offset, but also the energy levels corresponding to one or more offsets occurring before and after the offset a t which the energy peak occurs. Interpolation or extrapolation techniques may be used to predict the actual location of an energy peak based on the apparent location of the peak and the energy levels observed at surrounding offsets.
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