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. 07, 1997
Filed:
Aug. 09, 1995
Akitoshi Saito, Shizuoka-Ken, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
An integrated circuit has a plurality of circuit elements, each of which is equipped with a power saving device for conserving power. This offers design flexibility to more easily change the number of circuit elements in the integrated circuit. Each circuit element detects the input data with the aid of an input detector circuit. The input detector triggers a timer circuit to measure the time required for the circuit element to process the data. The timer circuit turns on an action flag at the start of the process, and turns off the action flag at the end of the process. When the action flag is on, a switch circuit provides either a clock signal or the power to a main circuit. This allows the main circuit to enter an activation mode. When the action flag is off, the switch circuit either provides a low-speed clock signal or suspends the supply of the clock signal or the power to the main circuit. This allows the main circuit to enter a sleep mode.