Wireless transmit-only apparatus and method

Details Wireless transmit-only apparatus and method Wireless transmit-only apparatus and method

2007-02-20

2007-02-20

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter

C455S095000, C375S376000

Reexamination Certificate

active

10645318

ABSTRACT:
A wireless transmit-only apparatus (20) has a controller (21) that responds to a user interface25by correlating specific user input with a corresponding characterizing transmission parameter(s) as is stored in a memory (35) and by selecting a corresponding resonant device (31and32). The latter devices serve to drive the PLL control input of a phase locked loop (23) to thereby influence the transmission carrier frequency of a wireless transmitter (22). In a preferred embodiment, at least one of the resonant devices comprises a mechanically resonant device such as a surface acoustic wave device, a crystal resonator, or a ceramic resonator.

REFERENCES:
patent: 6005508 (1999-12-01), Tsui
patent: 6822603 (2004-11-01), Crimmins et al.
patent: 2004/0207537 (2004-10-01), Keller et al.
patent: 2 300 944 (1996-11-01), None
patent: 2 300 945 (1996-11-01), None
patent: 2 300 997 (1996-11-01), None
patent: 2 301 961 (1996-12-01), None
patent: WO 03/051085 (2003-06-01), None
British Search Report from corresponding application GB 04 186 35.9 dated Nov. 26, 2004.

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