Radio communication apparatus and its reception timing...

Details Radio communication apparatus and its reception timing... Radio communication apparatus and its reception timing...

2006-03-14

2006-03-14

Le, Lana (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S260000, C455S316000, C455S265000

Reexamination Certificate

active

07013119

ABSTRACT:
A radio communication apparatus includes a low-rate clock oscillator for generating a low-rate clock signal used for reception timing estimation; a frequency deviation measuring duration controller for determining a deviation measuring duration of measuring a frequency deviation of the low-rate clock signal in accordance with an intermittent time interval of the radio signal; a frequency deviation measuring section for measuring the frequency deviation of the low-rate clock signal over the deviation measuring duration; and a timing counter for correcting the frequency deviation of the low-rate clock signal, for measuring an intermittent span of the received signal in response to the low-rate clock signal after the correction, and for generating the estimated reception timing of the radio signal.

REFERENCES:
patent: 5633898 (1997-05-01), Kishigami et al.
patent: 5987339 (1999-11-01), Asano
patent: 6230021 (2001-05-01), Ohdachi
patent: 2004/0152438 (2004-08-01), Yamauchi et al.
patent: 10-190568 (1998-07-01), None
patent: 10-209952 (1998-08-01), None
patent: 2000-13269 (2000-01-01), None
patent: 2000-49682 (2000-02-01), None
patent: 2000-224100 (2000-08-01), None

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