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:
Apr. 10, 2001
Filed:
Sep. 03, 1997
SGS-Thomson Microelectronics S.A., Gentilly, FR;
Abstract
The present invention relates to a phase-locked loop including a comparator and a charge pump. The comparator compares the phases of an input pulse signal and of a reference pulse signal and generates charge and discharge control signals, the charge pump being capable of charging or discharging the capacitive filter according to the charge and discharge control signals. The filter is charged or discharged when these signals are in a first state and insulated from the charge pump when they are in a second state. The loop includes a device for limiting the charge and discharge current of the capacitive filter, this device including windowing circuits for limiting the time during which the charge and discharge control signals are in the first state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile