Communication device

Details Communication device Communication device

2006-05-30

2006-05-30

Phan, Dao (Department: 3662)

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

Directive

Including a satellite

C342S357490

Reexamination Certificate

active

07053825

ABSTRACT:
A communication device able to realize a positioning computation at the high speed and able to reduce electric power consumption, wherein a host CPU obtains the error value of the reference frequency of a crystal oscillator from a GPS receiver, stores that in a storage unit, transmits this value to the GPS receiver as the next positioning computation to correct the reference frequency, and makes to search a GPS satellite, therefore the electric power need not to be supplied to the GPS receiver and the crystal oscillator, and the position- finding result can be obtained at the high speed and with reducing the electric power consumption.

REFERENCES:
patent: 6480145 (2002-11-01), Hasegawa
patent: 6509870 (2003-01-01), Matsushita et al.
patent: 2003/0083814 (2003-05-01), Gronemeyer
patent: 2003/0231704 (2003-12-01), Tanaka et al.

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