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:
Jul. 26, 2005
Filed:
Mar. 12, 2002
Koichi Takeda, Saitama, JP;
Kimito Horie, Tokyo, JP;
Koichi Takeda, Saitama, JP;
Kimito Horie, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention implements an asynchronous transition signaling circuit which can be applied to a bus arbitrator or the like. The OR gate holds a token (feedback signal S) as long as the device enabling signal Grant is output, even after the request event ReqIn is canceled, and as a result, the Muller C element with an inverter cancels the output of the response event AckOut. When the device request signal Req is not output, the feedback signal S passes through the AND gate, and the request event ReqOut is output from the AND gate. At the same time, the device enabling signal Grant is no longer output, and the loop comprised of the Muller C element with an inverter, the OR gate and the AND gate is canceled. As a result, the token (feedback signal S) is transferred to the next transition signaling circuit.