Method and device of carrier wave frequency calibration for...

Details Method and device of carrier wave frequency calibration for... Method and device of carrier wave frequency calibration for...

2005-04-05

2005-04-05

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Signal frequency or phase correction

C702S085000, C702S107000, C327S100000, C377S029000, C455S130000

Reexamination Certificate

active

06876939

ABSTRACT:
The present invention discloses wave frequency calibration method and device for remote controller, the device of the present invention comprises an oscillator for generating a base wave; a storage for storing a match value; a modifier for generating a modified signal; and a processor connected to the oscillator, the storage and the modifier, the processor change the match value until the modified signal disappear and store the most updated match value in the storage to assure the receiving end of the remote controller can receive the signal with correct frequency. Incorporating with a RC oscillator, the wave frequency calibration method and device for remote controller of the present invention will avoid the problem of the bias of wave, which enables the RC oscillator to be a oscillator that can be used commonly in a regular remote controller.

REFERENCES:
patent: 3571720 (1971-03-01), Heagney
patent: 20030112906 (2003-06-01), Pigott et al.
patent: 20040201403 (2004-10-01), Chen et al.

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