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:
Jul. 25, 1989
Filed:
Oct. 06, 1987
Applicant:
Inventor:
Morihiko Takayama, Tokyo, JP;
Assignee:
System Instruments Co., Ltd., Hachioji, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36472401 ; 364825 ;
Abstract
A digital filter includes at least one cascade-connected unit digital filter. The unit digital filter is constituted by a comb filter and an integrator cascade-connected thereto.