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:
May. 07, 2002
Filed:
Apr. 06, 1998
Thomas John LeMense, Livonia, MI (US);
Tejas Bhupendra Desai, Sterling Heights, MI (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
A remote convenience system ( ) includes a portable transmitter unit ( ) and a receiver unit ( ), and by a method, permits remote control of performance of a function, via a signal ( ). Preferably, the system ( ) is a remote convenience system for a vehicle ( ). The transmitter unit ( ) has a microcomputer ( ) that provides a message that contains a function request. First and second signals are transmitted from the transmitter unit ( ). Each signal is provided by a transmitter portion ( ) at a different frequency and conveys the complete message. The receiver unit ( ) has a detector (e.g., ) tuned to receive the signal ( ) for both the first and second frequencies, and can discern the complete message provided via both frequencies or either frequency. Thus, if the transmitter unit ( ) is in a frequency dependent “dead spot”, communication is not prevented.