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. 28, 1982
Filed:
Jul. 09, 1980
Toshikazu Yoneyama, Tsurugashima, JP;
Toko, Inc., Tokyo, JP;
Abstract
A charge-balanced analog-to-digital converter including an integrator, a capacitor, two counters and a control circuit. The integrator has two input terminals which are connected to an operational amplifier through separate resistors respectively. One of the input terminals is provided, during a first cyclic period, with a lower potential version of input voltage and during a second cyclic period, with a higher potential version of the input voltage. The other input terminal is provided, during the first and second cyclic periods, alternately with a reference voltage for charging the capacitor and an earth voltage for causing the integrator to be discharged, by discriminating the output of the integrator by means of the comparator. Clock signals which occur during the first and second cyclic periods are counted by one of the two counters, and clock signals which occur when the integrator is being charged during the first and second cyclic periods, are counted by way of summation and reduction by means of the other counter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile