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:
Nov. 23, 2004
Filed:
Jul. 07, 2003
Charles R. Berg, Cupertino, CA (US);
Bao Pham, San Jose, CA (US);
IGT, Reno, NV (US);
Abstract
An interface circuit replaces a selected IDE command received from a host computer with an invalid command and routes the invalid command to a data storage device. In this manner, the interface circuit provides convenient, cost-effective technique for preventing a selected IDE command sent by the host computer from reaching the data storage device. Moreover, by replacing the selected command with an invalid command, rather than merely blocking the selected command, the data storage device can respond with an error message rather than leaving the data storage device and the IDE bus in a non-deterministic state that might require user intervention. The interface circuit is particularly well-suited for preventing a host computer from writing to an IDE hard disk drive in a gaming machine.