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:
Sep. 05, 1995
Filed:
Jun. 22, 1993
Tetsuya Iga, Itami, JP;
Koichi Hasegawa, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor integrated circuit having a plurality of power source voltages in one chip and which comprises delaying means which accurately implements a predetermined delay time into a signal. An inverter circuit block receives at its input part an output from a NAND gate. An output from the inverter circuit block is coupled to a node of a phase comparing part through a switch. The output from the inverter circuit block is also coupled through another switch to an input part of another inverter circuit block whose output is coupled to the node of the phase comparing part through still another switch. A control signal is set at a L level if the phase comparing part is to operate at a first power source voltage and set at a H level if the phase comparing part is to operate at a second power source voltage which is larger than the first power source voltage.