Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1996-04-30
1999-10-19
Vo, Nguyen
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
455258, 455266, 455295, 455265, H04B 140
Patent
active
059704004
ABSTRACT:
A communication system is provided for increasing communication range between at least two radio communication devices without increasing the output power of transmitted radio signals from the devices, and without increasing the antenna gain of the received signals. Each radio device includes an oscillator for generating a carrier reference signal, and an SATPS receiver which receives at least one standard timing reference signal from at least one SATPS satellite. The received standard timing reference signal is used to continuously adjust the timing and synchronization of the oscillator to improve the accuracy of the carrier frequency signal. The improved accuracy in the carrier frequency signal may then be used to reduce the bandwidth of the modulated carrier frequency signals generated by the radio device to thereby increase the effective communication range and sensitivity of the device.
REFERENCES:
patent: 3763492 (1973-10-01), Easton
patent: 4270193 (1981-05-01), Ichikawa
patent: 4301537 (1981-11-01), Roos
patent: 4582434 (1986-04-01), Plangger et al.
patent: 4760586 (1988-07-01), Takeda
patent: 4941150 (1990-07-01), Iwasaki
patent: 5056108 (1991-10-01), Lund
patent: 5220687 (1993-06-01), Ichikawa et al.
patent: 5222075 (1993-06-01), Richley
patent: 5241562 (1993-08-01), Partyka et al.
patent: 5365550 (1994-11-01), Roberson
patent: 5386435 (1995-01-01), Cooper et al.
patent: 5408506 (1995-04-01), Mincher et al.
patent: 5440313 (1995-08-01), Osterdock et al.
patent: 5481258 (1996-01-01), Fawcett et al.
patent: 5629649 (1997-05-01), Ujiie
patent: 5717403 (1998-02-01), Nelson et al.
FCC Regulation 47 CFR 15.247, Oct. 1994.
Kincaid Lester G.
Magellan Corporation
Vo Nguyen
LandOfFree
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