Satellite-positioning signal receiving device

Details Satellite-positioning signal receiving device Satellite-positioning signal receiving device

2007-07-24

2007-07-24

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

Reexamination Certificate

active

11004994

ABSTRACT:
A satellite-positioning receiving device includes: an antenna which receives a signal from a satellite; an RF amplifier unit which amplifies the signal received by the antenna; a reference quartz oscillator; a digital processor unit which performs signal processing; an operation accepting unit; and two reception processing systems, that is, a first reception processing system including a first mixer unit, a first local oscillator, a first IF amplifier unit, and a first IF filter unit and a second reception processing system including a second mixer unit, a second local oscillator, a second IF amplifier unit, and a second IF filter unit. The digital processor unit is connected to the local oscillators and the IF filter units, and is so constituted that it is capable of individually changing and setting their characteristics.

REFERENCES:
patent: 4928106 (1990-05-01), Ashjaee et al.
patent: 6498584 (2002-12-01), Naruse
patent: 1 067 395 (2001-01-01), None
patent: 1067395 (2001-01-01), None
patent: A-6-34738 (1994-02-01), None
patent: A-2000-115013 (2000-04-01), None
patent: A-2003-133981 (2003-05-01), None

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