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. 22, 1994
Filed:
Jun. 05, 1992
Applicant:
Inventor:
Kouichi Honma, Yokohama, JP;
Assignee:
Matsushita Electric Industrail Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ;
U.S. Cl.
CPC ...
364825 ;
Abstract
Disclosed is a roll-off filter apparatus having a small size, a simplified circuit structure and consuming a small amount of power. In the roll-off filter apparatus attaining the above object of the invention, a ramp signal generated from a ramp pattern generator is inserted in each gap of a data input signal temporarily stored in a buffer circuit, and such a signal is filtered in a switched capacitor filter having a roll-off filter characteristic. The output signal of the switched capacitor filter is supplied to be temporarily stored in a bucket brigade device, and the output signal of the bucket brigade device is delivered at a desired signal rate.