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:
Dec. 24, 1991
Filed:
Mar. 06, 1991
Yuichi Miyazawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A phase locked loop circuit, which is arranged for receiving a first signal having a given frequency and producing a second signal which has the same frequency and is synchronous with the first signal, comprises control voltage generating means for generating a control voltage responding to a phase difference and a frequency difference between the first and second signals, a voltage controlled oscillator containing a ring oscillator having a multiplicity of the rows of inverters for producing a frequency output which is primarily determined by the control voltage, and a quantity-of-rows changing means for automatically changing the quantity of the inverters rows in the ring oscillator according to the control voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile