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. 01, 2019
Filed:
Jun. 26, 2017
Texas Instruments Incorporated, Dallas, TX (US);
Jin-Meng Ho, Plano, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A control unit device in one disclosed embodiment includes a receiver and a memory that stores one or more operation keys and program instructions. The control unit further includes a processor coupled to the receiver and the memory. The program instructions are executable by the processor to cause the control unit device to, in response to a revocation command received by the receiver, perform a revocation process by selecting which of the one or more operation keys to retain in the memory based on, for each of the one or more operation keys, whether the control unit receives a message encrypted by the operation key during the revocation process.