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:
Dec. 25, 2007
Filed:
Oct. 21, 2005
Yoshihisa Tanaka, Kyoto, JP;
Shigehide Yano, Kyoto, JP;
Yoshihisa Tanaka, Kyoto, JP;
Shigehide Yano, Kyoto, JP;
Rohm Co., Ltd., , JP;
Abstract
A core unit implements a predetermined function. An I/O unit controls input from and output to the outside. The core unit and the I/O unit are subject to independent control for supply of power. When power is turned off in the core unit, a signal output from the I/O unit to the core unit is fixed at a low level, while power is maintained in the I/O unit. A first level shifter and a second level shifter are provided between the core unit and the I/O unit and cancel a difference in power supply voltage level between the units. Power is turned off in the first level shifter and the second level shifter when power is turned off in the core unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile