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:
Jun. 01, 1976
Filed:
Jul. 15, 1974
Larry J Kendall, Concord, CA (US);
Larry D Snyder, San Jose, CA (US);
Fairchild Camera and Instrument Corporation, Mountain View, CA (US);
Abstract
An analog-to-digital converter for converting simultaneously a plurality of analog signals into their digital equivalence. The analog-to-digital converter is comprised of a ramp generator, a digital counter, control means, a plurality of output buffers and a plurality of analog comparators. The control unit maintains the digital counter and ramp generator in a fixed relationship such that the analog-to-digital converter automatically compensates for variations in the counter and/or ramp generator operations. The control means maintains the time correspondence of a full scale digital count within the digital counter with a full scale analog value of the ramp output generated by the ramp generator. The control unit resets the digital counter to zero upon the occurrence of a designated zero analog value of the ramp output such that the time between the analog zero value and the analog full scale value will correspond to a constant number of counts of the counter.