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:
Feb. 16, 1993
Filed:
Feb. 26, 1992
Applicant:
Inventors:
Fumitaka Aoyagi, Tokyo, JP;
Eiichi Hasegawa, Tokyo, JP;
Assignee:
Nippon Precision Circuits Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
3311 / ; 331 74 ; 331109 ; 331158 ; 331183 ;
Abstract
The output of the first CMOS inverter, connected as an oscillator, is applied to the inputs of second and third CMOS inverters that have logic threshold voltages higher and lower than the logic threshold voltage of the first inverter. The outputs of the second and third CMOS inverters are connected to an output circuit via a logic output circuit. The output of the logic output circuit is shorted by an output control circuit, under the control of the outputs of the second and third CMOS inverters, when the output of the oscillator is between the logic threshold voltages of the second and third inverters.