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. 21, 1989
Filed:
Mar. 03, 1987
Applicant:
Inventor:
Ngu T Pham, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
377110 ; 377111 ; 377116 ;
Abstract
A stable binary counter as applicable to synchronous counters, to frequency dividers and more particularly to microwave integrated circuits is constituted by a plurality of elementary counters mounted in cascade. Each elementary counter is formed by a half-adder having two inputs, one 'sum' output and one 'carry' output. The 'sum' output is connected to the input of a master-slave flip-flop, the output of which is connected in a feedback loop to one input of the half-adder. The master and slave flip-flops are controlled by the two complementary waveforms of a single clock signal. The 'carry' output of one half-adder is connected to the input of the following half-adder.