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公开(公告)号:DE69937458T2
公开(公告)日:2008-08-28
申请号:DE69937458
申请日:1999-09-07
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , THOMPSON JAMES H
IPC: H04B7/005
Abstract: The present invention relates to a method and a system of controlling the gain input into an antenna of a gateway. Based on the obtained antenna elevation a path gain is calculated. Together with the obtained transponder gain and the obtained antenna dish gain the path gain is used to calculate a common gateway gain. This common gateway gain is used to adjust the gain a variable gain amplifier.
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公开(公告)号:AT377297T
公开(公告)日:2007-11-15
申请号:AT99945589
申请日:1999-09-07
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , THOMPSON JAMES
IPC: H04B7/005
Abstract: The present invention relates to a method and a system of controlling the gain input into an antenna of a gateway. Based on the obtained antenna elevation a path gain is calculated. Together with the obtained transponder gain and the obtained antenna dish gain the path gain is used to calculate a common gateway gain. This common gateway gain is used to adjust the gain a variable gain amplifier.
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公开(公告)号:DE69941138D1
公开(公告)日:2009-08-27
申请号:DE69941138
申请日:1999-09-07
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , THOMPSON JAMES H
Abstract: The present invention relates to a method and a system of controlling the gain input into an antenna of a gateway. Based on the obtained antenna elevation a path gain is calculated. Together with the obtained transponder gain and the obtained antenna dish gain the path gain is used to calculate a common gateway gain. This common gateway gain is used to adjust the gain a variable gain amplifier.
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公开(公告)号:BR0307099A
公开(公告)日:2005-02-01
申请号:BR0307099
申请日:2003-01-27
Applicant: QUALCOMM INC
Inventor: SEE ANDREW , JAFFEE JAMES , MOLLENKOPF STEVEN , SZABO SANDOR
IPC: H04B1/04 , H03C3/09 , H03C3/40 , H03D7/18 , H03L1/00 , H03L3/00 , H03L7/18 , H04B1/40 , H03L7/185 , H04B1/30
Abstract: A wireless transceiver includes a transmitter having a harmonic rejection mixer and an RF output phase-locked loop in a two step up-conversion architecture, and a direct conversion receiver. The transmitter includes a local oscillator for producing a signal at a multiple of an intermediate frequency, a quadrature modulator harmonic rejection mixer responsive to the signal at the multiple of the intermediate frequency for modulating in-phase and quadrature-phase base-band signals to produce an intermediate frequency signal, a filter responsive to the intermediate frequency signal for producing a filtered intermediate frequency signal, and an RF output offset phase-locked loop responsive to the filtered intermediate frequency signal and the signal at the multiple of the intermediate frequency for producing an RF transmission signal. The harmonic rejection mixer reduces filtering requirements to facilitate a high level of circuit integration. The local oscillator may use a integer or fractional-N phase-locked loop.
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公开(公告)号:AU4034900A
公开(公告)日:2000-11-21
申请号:AU4034900
申请日:2000-03-27
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN
Abstract: A system and method for estimating the power of a signal. The signal is compared to and separated into a plurality of ranges. Each range is assigned a particular output value. The output values approximate the square of the input signal based on known characteristics of the input signal. A low pass filter is used to average a plurality of the output values.
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公开(公告)号:DE69937458D1
公开(公告)日:2007-12-13
申请号:DE69937458
申请日:1999-09-07
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , THOMPSON JAMES H
IPC: H04B7/005
Abstract: The present invention relates to a method and a system of controlling the gain input into an antenna of a gateway. Based on the obtained antenna elevation a path gain is calculated. Together with the obtained transponder gain and the obtained antenna dish gain the path gain is used to calculate a common gateway gain. This common gateway gain is used to adjust the gain a variable gain amplifier.
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公开(公告)号:AU772244B2
公开(公告)日:2004-04-22
申请号:AU4034900
申请日:2000-03-27
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN
Abstract: A system and method for estimating the power of a signal. The signal is compared to and separated into a plurality of ranges. Each range is assigned a particular output value. The output values approximate the square of the input signal based on known characteristics of the input signal. A low pass filter is used to average a plurality of the output values.
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公开(公告)号:CA2474129A1
公开(公告)日:2003-08-07
申请号:CA2474129
申请日:2003-01-27
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , JAFFEE JAMES , SEE ANDREW , SZABO SANDOR
IPC: H04B1/04 , H03C3/09 , H03C3/40 , H03D7/18 , H03L1/00 , H03L3/00 , H03L7/18 , H04B1/40 , H03L7/185 , H04B1/30
Abstract: A wireless transceiver includes a transmitter having a harmonic rejection mixer and an RF output phase-locked loop in a two step up-conversion architecture, and a direct conversion receiver. The transmitter includes a local oscillator for producing a signal at a multiple of an intermediate frequency, a quadrature modulator harmonic rejection mixer responsive to the signal at the multiple of the intermediate frequency for modulating in-phase and quadrature-phase base-band signals to produce an intermediate frequency signal, a switchable signal responsive to the intermediate frequency signal for producing a filtered intermediate frequency signal, and an RF output offset phase-locked loop responsive to the filtered intermediate frequency signal and the signal at the multiple of the intermediate frequency for producing an RF transmission signal. The harmonic rejection mixer reduces filtering requirements to facilitate a high level of circuit integration whi le the output offset phase-locked loop reduces the power consumption. TheThe switchability of the filter allows the utilisation of the transceiver for EGSM, DCS and PCS communication. The local oscillator may use a integer or fractional-N phase-locked loop.
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公开(公告)号:AU5816499A
公开(公告)日:2000-03-27
申请号:AU5816499
申请日:1999-09-07
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN , THOMPSON JAMES H
IPC: H04B7/005
Abstract: The present invention relates to a method and a system of controlling the gain input into an antenna of a gateway. Based on the obtained antenna elevation a path gain is calculated. Together with the obtained transponder gain and the obtained antenna dish gain the path gain is used to calculate a common gateway gain. This common gateway gain is used to adjust the gain a variable gain amplifier.
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公开(公告)号:HK1044242A1
公开(公告)日:2002-10-11
申请号:HK02105834
申请日:2002-08-09
Applicant: QUALCOMM INC
Inventor: MOLLENKOPF STEVEN
Abstract: A system and method for estimating the power of a signal. The signal is compared to and separated into a plurality of ranges. Each range is assigned a particular output value. The output values approximate the square of the input signal based on known characteristics of the input signal. A low pass filter is used to average a plurality of the output values.
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