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. 14, 1995
Filed:
Aug. 04, 1992
Applicant:
Inventors:
Daniel Shum, Pasadena, CA (US);
Shufan Chan, Anaheim Hills, CA (US);
Assignee:
Samsung Semiconductor, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03K / ;
U.S. Cl.
CPC ...
327 77 ; 327175 ; 327557 ;
Abstract
A circuit for converting an input signal with an arbitrary duty cycle to an output signal with a 50 percent duty cycle. A bandpass filter removes unwanted DC and high frequency components from the input signal. A comparator compares the filtered signal to a reference voltage and provides very high gain amplification to produce an output signal having a 50 percent duty cycle. In one embodiment, two bandpass filters are used to condition the signal prior to providing it to the comparator. Each bandpass stage is comprised of a low pass filter followed by a high pass filter.