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:
Nov. 16, 1976
Filed:
Apr. 21, 1975
Applicant:
Inventor:
Tim W Henry, Tempe, AZ (US);
Assignee:
Motorola, Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06M / ;
U.S. Cl.
CPC ...
235 / ; 235 / ; 235 / ; 235 / ;
Abstract
A four bit binary coded decimal (BCD) up/down counter includes a four bit adder and associated logic circuitry configured to feed therethrough the incoming BCD code words as the actual output for the up count and for the down count, add binary 5 to the incoming BCD code word for 1 through 9 and invert each bit of the resulting code words, and feeding the BCD code word for zero directly to the output.