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:
May. 28, 1991
Filed:
Jun. 13, 1989
Applicant:
Inventor:
Koji Takeda, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
377 44 ; 377 47 ; 377 52 ; 377108 ; 377110 ;
Abstract
An asynchronous nonlogical counting device includes at least a first counter and a second counter connected in cascade. The first counter has a frequency dividing ratio of 2.sup.n where n is a natural number. A control unit produces a control signal based on the count value of the first counter. The second counter has a variable frequency dividing ratio which is based on the control signal. The counting device can be made programmable by substituting a comparator circuit for the control unit. The comparator compares the output of the first counter to an instruction signal from an external source.