Multi-band radio terminal and band switching method used...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S553100

Reexamination Certificate

active

07085586

ABSTRACT:
A frequency control unit derives a frequency corresponding to each FID from frequency information sent from a host sequence and sends the frequency information to a register conversion unit, the register conversion unit converts the frequency information sent from the frequency control unit into a register value and sends the register value to a three wire serial signal generation unit, the three wire serial signal generation unit simultaneously sends out the same data with the register value as a three wire serial signal of data, clock and strobe to a radio transmitter and receiver unit, and the radio transmitter and receiver unit controls ON/OFF by its own circuit in response to the three wire serial signal and transmits and receives radio waves of a set frequency through an antenna.

REFERENCES:
patent: 5915223 (1999-06-01), Lecuyer et al.
patent: 6223053 (2001-04-01), Friedmann et al.
patent: 6957081 (2005-10-01), Leyh et al.
patent: 0 966 241 (2000-04-01), None
patent: 1 006 669 (2000-06-01), None
patent: 1006669 (2000-06-01), None
patent: 11-251951 (1999-09-01), None

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