发明名称 |
WIRELESS TRANSMIT-ONLY APPARATUS AND METHOD |
摘要 |
A wireless transmit-only apparatus (20) has a controller (21) that responds to a user interface 25 by 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 (31 and 32). 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.
|
申请公布号 |
CA2477028(C) |
申请公布日期 |
2013.09.24 |
申请号 |
CA20042477028 |
申请日期 |
2004.08.09 |
申请人 |
THE CHAMBERLAIN GROUP, INC. |
发明人 |
FITZGIBBON, JAMES J.;KELLER, ROBERT ROY, JR.;WOJIAK, BERNARD J. |
分类号 |
H04B1/02;G07C9/00;G08C17/00;G08C17/02;H03L7/06;H04B1/04;H04B7/00 |
主分类号 |
H04B1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|