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. 23, 1981
Filed:
Apr. 13, 1979
Ramesh C Varshney, Sunnyvale, CA (US);
Fairchild Camera & Instrument Corp., Mountain View, CA (US);
Abstract
A plurality of charge-coupled device shift registers or shift register elements is used to generate a plurality of packets of charge, each proportional to a different reference potential. Using a sense amplifier or comparator, each of the packets of charge is compared, either simultaneously or sequentially, with one or more packets of charge generated by the potential of an analog signal. Signals from the comparator are then supplied to an encoder or a counter to generate a digital signal representative of the analog signal. In one embodiment the plurality of different reference potentials are generated by positioning the shift registers or shift register elements at various locations along a resistance having a potential applied across it.