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. 19, 1995
Filed:
Nov. 12, 1993
Guoliang Shou, Tokyo, JP;
Weikang Yang, Tokyo, JP;
Sunao Takatori, Tokyo, JP;
Makoto Yamamoto, Tokyo, JP;
Yozan Inc., Tokyo, JP;
Abstract
A memory device for recording a time factor of data includes a threshold element, coupling capacitance, an RC-circuit, and a digital counter. A reference voltage is input to the RC-circuit. The output of the RC-circuit and an input voltage are each input to the coupling capacitance. The output of the coupling capacitance is input to the threshold element. When the voltage received by the threshold element reaches a threshold voltage level, the threshold element generates an output voltage. The digital counter receives the threshold element output voltage and the reference voltage. The digital counter is triggered by the reference voltage to begin counting clock pulses generated by a reference clock. The digital counter is then triggered by the threshold element output voltage to stop counting the clock pulses.