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:
Feb. 20, 2007
Filed:
May. 09, 2003
Serge Fruhauf, Saratoga, CA (US);
Taylor J. Leaming, Austin, TX (US);
Alain C. Pomet, Marseille, FR;
Serge Fruhauf, Saratoga, CA (US);
Taylor J. Leaming, Austin, TX (US);
Alain C. Pomet, Marseille, FR;
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
An integrated circuit for a smart card may include a universal serial bus (USB) transceiver for communicating with a USB host device, and a microprocessor connected to the USB transceiver and operable in a test mode and a user mode. When in the test mode, the microprocessor may perform a test operation based upon receiving at least one test vendor specific request (VSR) from the USB host device via the at least one USB transceiver. By way of example, the test operation may include scan testing the microprocessor's control logic, detecting a status of at least one buffer and communicating the status to the USB host device, writing test data to at least one designated buffer and sending the test data from the at least one designated buffer to the USB host device, and/or operating with reduced power.