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. 19, 1993
Filed:
Dec. 11, 1991
Edward C Posner, Pasadena, CA (US);
Phillip K Sotel, Pasadena, CA (US);
Moshe Becker, Pasadena, CA (US);
Other;
Abstract
The described system prevents unauthorized operation of an automotive vehicle under the control of a separable engine control module (10) and signal source or memory device (12). A wire scrambler (22) and interface module (24) are interconnected between the engine control module (10) and memory device (12). A key device (20) having a fixed coded signal source (53) on being received within a lock cylinder (26) energizes a crossbar switch matrix (44) in the interface module (24) which effectively provides a correct wiring relationship between the engine control module (10) and the memory device (12). Connector parts (16, 30) are secured together in a manner that would destroy connector contacts if separated.