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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：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：AT231243T
公开(公告)日：2003-02-15
申请号：AT99946743
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：NO20024257L
公开(公告)日：2002-10-30
申请号：NO20024257
申请日：2002-09-06
Applicant: QUALCOMM INC
Inventor： GRILLI FRANCESCO , JAIN AVINASH , GARDNER WILLIAM
Abstract: A mobile wireless telecommunications system includes base stations of a first type operating according to a first air interface, and base stations of a second type operating according to a second air interface. Methods and apparatus are provided for handing over a mobile station in the system from a first base station, which is of the first type, to a second base station, which is of the second type. A communications link is established over the first air interface between the mobile station and the first base station. Data are received from the mobile station responsive to a signal received by the mobile station over the second air interface from the second base station, substantially without breaking the communications link with the first base station. The mobile station is handed over from the first to the second base station responsive to the data received therefrom. In particular, a method of conducting intersystem handover from a multicarrier system to a direct spread system is provided. Timing synchronization is also advantageously made available through the mobile station.
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公开(公告)号：NO20024257D0
公开(公告)日：2002-09-06
申请号：NO20024257
申请日：2002-09-06
Applicant: QUALCOMM INC
Inventor： GRILLI FRANCESCO , JAIN AVINASH , GARDNER WILLIAM
Abstract: A mobile wireless telecommunications system includes base stations of a first type operating according to a first air interface, and base stations of a second type operating according to a second air interface. Methods and apparatus are provided for handing over a mobile station in the system from a first base station, which is of the first type, to a second base station, which is of the second type. A communications link is established over the first air interface between the mobile station and the first base station. Data are received from the mobile station responsive to a signal received by the mobile station over the second air interface from the second base station, substantially without breaking the communications link with the first base station. The mobile station is handed over from the first to the second base station responsive to the data received therefrom. In particular, a method of conducting intersystem handover from a multicarrier system to a direct spread system is provided. Timing synchronization is also advantageously made available through the mobile station.
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Patent Agency Ranking
公开(公告)号：CA2400671A1
公开(公告)日：2001-09-13
申请号：CA2400671
申请日：2001-03-07
Applicant: QUALCOMM INC
Inventor： GARDNER WILLIAM , GRILLI FRANCESCO , JAIN AVINASH
Abstract: A mobile wireless telecommunications system includes base stations of a firs t type operating according to a first air interface, and base stations of a second type operating according to a second air interface. Methods and apparatus are provided for handing over a mobile station in the system from a first base station, which is of the first type, to a second base station, which is of the second type. A communications link is established over the first air interface between the mobile station and the first base station. Data are received from the mobile station responsive to a signal received by the mobile station over the second air interface from the second base statio n, substantially without breaking the communications link with the first base station. The mobile station is handed over form the first to the second base station responsive to the data received therefrom. In particular, a method o f conducting intersystem handover from a multicarrier system to a direct sprea d system is provided. Timing synchronization is also advantageously made available through the mobile station.
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公开(公告)号：FI20010418A
公开(公告)日：2001-03-02
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 , G01S
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：CA2343218A1
公开(公告)日：2000-03-16
申请号：CA2343218
申请日：1999-09-03
Applicant: QUALCOMM INC
Inventor： GARDNER WILLIAM , AGRAWAL AVNEESH , ZOU QIUZHEN , KANG INYUP , SIH GILBERT C
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 embodime nt 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 yieldin g despread data, accumulating said despread data over a first duration yieldin g 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：AU5111499A
公开(公告)日：2000-02-07
申请号：AU5111499
申请日：1999-07-19
Applicant: QUALCOMM INC
Inventor： NEVO RON , VAKULENKO MICHAEL , BRYGER BOAZ E , GARDNER WILLIAM , CASPI DROR , MENDELSON ASSAF , KOLOR SERGIO , NIZRI SHLOMO , KESSLER ILAN , LEVY ATAI , SHIDELMAN DROR , RIMONI YORAM
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公开(公告)号：WO0038179A3
公开(公告)日：2000-11-09
申请号：PCT/US9930587
申请日：1999-12-21
Applicant: QUALCOMM INC
Inventor： MANJUNATH SHARATH , GARDNER WILLIAM
CPC classification number: G10L19/24 , G10L19/20 , G10L2025/783 , G10L2025/935
Abstract: A method and apparatus for the variable rate coding of a speech signal. An input speech signal is classified and an appropriate coding mode is selected based on this classification. For each classification, the coding mode that achieves the lowest bit rate with an acceptable quality of speech reproduction is selected. Low average bit rates are achieved by only employing high fidelity modes (i.e., high bit rate, broadly applicable to different types of speech) during portions of the speech where this fidelity is required for acceptable output. Lower bit rate modes are used during portions of speech where these modes produce acceptable output. Input speech signal is classified into active and inactive regions. Active regions are further classified into voiced, unvoiced, and transient regions. Various coding modes are applied to active speech, depending upon the required level of fidelity. Coding modes may be utilized according to the strengths and weaknesses of each particular mode. The apparatus dynamically switches between these modes as the properties of the speech signal vary with time. And where appropriate, regions of speech are modeled as pseudo-random noise, resulting in a significantly lower bit rate. This coding is used in a dynamic fashion whenever unvoiced speech or background noise is detected.
Abstract translation: 一种用于语音信号的可变速率编码的方法和设备。 输入语音信号被分类并且基于这种分类选择适当的编码模式。 对于每种分类，选择达到具有可接受的语音再现质量的最低比特率的编码模式。 低平均比特率是通过仅在语音部分期间采用高保真模式（即，高比特率，广泛适用于不同类型的语音）来实现的，其中该可靠性是可接受输出所需的。 在这些模式产生可接受的输出的语音部分中使用较低比特率模式。 输入语音信号分为有效和无效区域。 活动区域进一步分为有声区域，无声区域和瞬态区域。 取决于所需的保真度水平，将各种编码模式应用于主动语音。 编码模式可根据每种特定模式的优点和缺点使用。 随着语音信号的属性随时间变化，该装置在这些模式之间动态切换。 并且在合适的地方，语音区域被建模为伪随机噪声，导致显着更低的比特率。 每当检测到清音语音或背景噪声时，就以动态方式使用该编码。
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