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:
Jun. 15, 1999
Filed:
Jun. 04, 1997
Yasunori Kawamura, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A signal processing apparatus has a clock generator that generates a clock in accordance with the rate at which picture elements are scanned. The clock generator includes a first frequency divider for dividing the output frequency of a voltage-controlled oscillator for generating the clock, a second frequency divider for dividing the output frequency of a reference frequency oscillator, a phase comparator for comparing phases between the outputs of the first and second frequency dividers, means for applying the output of the phase comparator to the reference frequency oscillator as a control signal, and a third frequency divider for performing voltage division on the output of the voltage-controlled oscillator to obtain the clock. The clock obtained has a frequency determined as: ##EQU1## where M, N, and P represent the frequency-division ratios of the first, second, and third frequency dividers, respectively, and f.sub.x represents the reference frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile