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:
Mar. 15, 2011
Filed:
Nov. 18, 2009
Tszshing Cheung, Kawasaki, JP;
Tszshing Cheung, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An analog-to-digital converter is disclosed. An input signal processor sets a voltage of an input signal as an initial value of a signal voltage Vin, subtracts ½of an input range from the nth (n is a positive integer) signal voltage based on a comparison result output from a comparator, and outputs the (n+1)th signal voltage. A reference voltage source outputs a reference voltage to be compared with the signal voltage output from the input signal processor, the reference voltage being obtained by repeatedly reducing by one half the input range. A comparator compares the signal voltage from the input signal processor with the reference voltage from the reference voltage source.