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. 07, 1981
Filed:
Jan. 15, 1979
Applicant:
Inventors:
George R Hall, Sherman Oaks, CA (US);
Robert J Hall, Chatsworth, CA (US);
Assignee:
Norlin Industries, Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307265 ; 328 58 ; 328146 ; 307358 ;
Abstract
Apparatus for controlling the duty cycle of a rectangular input signal so that the duty cycle normally remains constant irrespective of the frequency of the input signal, but can be adjusted with accuracy. A generator initiates a rectangular output signal in synchronism with the input signal. A comparator enables the generator to terminate the output signal after a time period related to the relative amplitudes of the output signal and another reference voltage. An adjustment transistor can adjust the amplitude of the reference voltage in order to control the overall duty cycle of the output signal.