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:
Sep. 14, 1999
Filed:
Sep. 15, 1997
Applicant:
Inventors:
Darrell E Issa, Vista, CA (US);
Jerry W Birchfield, Vista, CA (US);
Charles Chen, Hsing Tien City, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C / ; H04L / ;
U.S. Cl.
CPC ...
34082531 ; 380 37 ; 380 21 ; 375203 ; 34082569 ; 34082557 ; 307 102 ;
Abstract
A system for monitoring and controlling an area comprising a controller for controlling system operational functions and responsive to at least one remote-control transmitter. The transmitter transmits system commands to the controller in a code word having a fixed word and a hopping word therein. The fixed and hopping words are scrambled using a format word resident in the transmitter and sent to the controller only during a learn mode.