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:
Oct. 16, 1990
Filed:
Apr. 28, 1988
Akira Matsuzawa, Neyagawa, JP;
Haruyasu Yamada, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A parallel type A/D converter includes circuitry for generating plural reference voltages, comparators for comparing the plural reference voltages with an input voltage, logic circuits for logically processing the outputs of comparators, and an encoder circuit for encoding the outputs from the logic circuits. A pair of logic outputs are obtained by a first logic circuit chain for receiving as inputs the outputs of a comparator of number i and of a comparator i+2. Conversion errors are reduced by properly processing this pair of logic outputs in a second logic circuit, or by composing an encoder circuit for receiving the pair of logic outputs as inputs.