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:
Feb. 06, 1996
Filed:
Sep. 12, 1994
Applicant:
Inventors:
Guoliang Shou, Tokyo, JP;
Weikang Yang, Tokyo, JP;
Sunao Takatori, Tokyo, JP;
Makoto Yamamoto, Tokyo, JP;
Assignees:
Yozan Inc., Tokyo, JP;
Sharp Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06J / ;
U.S. Cl.
CPC ...
364606 ;
Abstract
A method for directly multiplying an analog and a digital data without converting from analog-to-digital or digital-to-analog. An analog input voltage is provided to a plurality of switches. A digital input voltage including bits b.sub.0 to b.sub.7 which are provided as control signals to the switches. The switch output is integrated giving weights by means of a capacitive coupling, and a sign bit is added by a capacitive coupling CP with a double weight of the most significant bit ('MSB') of the digital input.