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:
Aug. 28, 1984
Filed:
Feb. 03, 1982
Yasuhiro Shin, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
The swallow counter includes a two modulus prescaler which selectively divides a frequency of an input pulse according to a signal level of a control signal for producing a frequency divided signal, a first programmable counter which starts counting in response to the frequency divided signal to produce a first code signal, a second programmable counter which starts counting in response to the first code signal for producing a second code signal, a first code detector for detecting a specific code signal of the first and second code signals to produce a first pulse signal, a third programmable counter which, in response to the frequency divided signal, starts to count for producing a third code signal, a second code detector for detecting a specific bit of the third code signal for producing a second pulse signal utilized as a reset signal of the first to third programmable counters, a flip-flop circuit for selectively outputting a reset or set signal in response to the first or second pulse signal, and a period counter responsive to the reset or set signal for producing a first or second level of the control signal.