The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2009
Filed:
Oct. 31, 2006
James J. Fitzgibbon, Batavia, IL (US);
Robert Roy Keller, Jr., Chicago, IL (US);
Bernard J. Wojciak, Naperville, IL (US);
James J. Fitzgibbon, Batavia, IL (US);
Robert Roy Keller, Jr., Chicago, IL (US);
Bernard J. Wojciak, Naperville, IL (US);
The Chamberlain Group, Inc., Elmhurst, IL (US);
Abstract
A wireless transmit-only apparatus () has a controller () that responds to a user interfaceby correlating specific user input with a corresponding characterizing transmission parameter(s) as is stored in a memory () and by selecting a corresponding resonant device (and). The latter devices serve to drive the PLL control input of a phase locked loop () to thereby influence the transmission carrier frequency of a wireless transmitter (). 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.