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公开(公告)号:AU600528B2
公开(公告)日:1990-08-16
申请号:AU7987687
申请日:1987-10-16
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , JACOBS IRWIN M , WEAVER LINDSAY A JR
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公开(公告)号:AU3349489A
公开(公告)日:1989-08-11
申请号:AU3349489
申请日:1988-12-21
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , ANTONIO FRANKLIN P , JACOBS IRWIN M
IPC: H04B7/212 , H04J3/00 , H04J3/16 , H04J3/24 , H04Q7/06 , H04Q7/08 , H04Q7/12 , H04Q7/18 , H04Q7/38
Abstract: A message communication system employing one or more centralized communication stations transmitting messages through Earth orbit relay satellites to mobile receivers utilizing Time Division Multiplexed (TDM) communication signals having signal time frames divided into a series of transmission channels. A predetermined number of the channels are designated as address channels with the remainder being used for data transfer. Information transmitted on the address channels is used by receivers to determine both the presence of a message and its corresponding data transmission channel. Each system receiver scans, and tracks only the communication signal address channels until a message addressed to that receiver is detected, at which time the selected receiver changes channels to the designated data channel for reception of the message. Thus, demodulation of the entire communication signal is not required and processing time and power is reduced for the typical waiting condition when messages are not being received. While a message is being received only a portion of the communication signal need to be received, demodulated and decoded. The decoded message is then displayed on a display screen or similar device for the recipient.
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公开(公告)号:EP0504281A4
公开(公告)日:1993-07-07
申请号:EP91901367
申请日:1990-11-30
Applicant: QUALCOMM INC
Inventor: AMES WILLIAM G , JACOBS IRWIN M , WEAVER LINDSAY A JR , GILHOUSEN KLEIN S
IPC: G01S5/12 , G01S5/14 , G01S13/87 , G01S19/00 , G01S19/01 , G01S19/38 , G01S19/48 , H04B7/185 , G01S5/10
CPC classification number: G01S19/00 , G01S5/14 , G01S13/46 , G01S13/876 , G01S19/38 , G01S2013/466
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公开(公告)号:FI120712B
公开(公告)日:2010-01-29
申请号:FI20031396
申请日:2003-09-26
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , JACOBS IRWIN M , PADOVANI ROBERTO , WEAVER LINDSAY A JR , WHEATLEY III CHARLES E , VITERBI ANDREW J
IPC: H04L27/30 , H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:FI20095859A
公开(公告)日:2009-08-20
申请号:FI20095859
申请日:2009-08-20
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , JACOBS IRWIN M , PADOVANI ROBERTO , WEAVER LINDSAY A JR , VITERBI ANDREW J , WHEATLEY III CHARLES E
IPC: H04L20090101 , H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:ES2313195T3
公开(公告)日:2009-03-01
申请号:ES05027505
申请日:1991-06-21
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , WEAVER LINDSAY A JR , JACOBS IRWIN M
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/00 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: Un sistema de modulación para su utilización en un sistema de comunicaciones de espectro expandido que emplea un esquema de traspaso suave que permita la conmutación entre sitios de células (12, 14) según dicte la intensidad de la señal, en el que la mencionada intensidad de la señal se deriva a partir de una señal de piloto, comprendiendo el sistema: un medio (200) para generar una primera señal de secuencia ortogonal correspondiente a una de una pluralidad de secuencias binarias ortogonales; un medio (196, 198) para generar una señal de pseudorruido (PN) correspondiente a una secuencia binaria PN; un medio (202, 204) para combinar la mencionada primera señal de secuencia ortogonal y la mencionada señal PN y proporcionar una primera señal de modulación resultante para la mencionada señal de piloto.
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公开(公告)号:HK1108073A1
公开(公告)日:2008-04-25
申请号:HK07113551
申请日:2007-12-12
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , WEAVER LINDSAY A JR , JACOBS IRWIN M
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:DE69133394T2
公开(公告)日:2005-06-16
申请号:DE69133394
申请日:1991-06-21
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , WEAVER JR , JACOBS IRWIN M , WHEATLEY III , PADOVANI ROBERTO , VITERBI ANDREW J
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:DK1104955T3
公开(公告)日:2004-07-19
申请号:DK01103642
申请日:1991-06-21
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , WEAVER LINDSAY A JR , JACOBS IRWIN M , WHEATLEY CHARLES E III , PADOVANI ROBERTO , VITERBI ANDREW J
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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公开(公告)号:AT268960T
公开(公告)日:2004-06-15
申请号:AT01103642
申请日:1991-06-21
Applicant: QUALCOMM INC
Inventor: GILHOUSEN KLEIN S , WEAVER LINDSAY A JR , JACOBS IRWIN M , WHEATLEY CHARLES E III , PADOVANI ROBERTO , VITERBI ANDREW J
IPC: H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: A cell site, comprising: means for modulating configured to format digital data for transmission on a communications channel and to insert at least one timing command into the digital data, the digital data comprising a plurality of bits; means for transmitting coupled to the means for modulating and configured to receive the digital data from the means for modulating, convert the digital data to analog data, and transmit the analog data on the communications channel; and means for receiving configured to receive a signal from at least one remote unit and to determine a timing error of the received signal to be used to generate the timing command in accordance with the timing error, the means for receiving being coupled to the means for modulating and configured to provide the timing command to the means for modulating.
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