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. 26, 1990
Filed:
Mar. 10, 1989
Paulus J Hovens, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A synchronizing circuit arrangement including an oscillator and a low-pass filter with a large time constant can be integrated in an integrated circuit, which filter has at least a switch arranged in series with a capacitor, because the switch is controlled by a periodical pulsatory control signal, which is derived from the oscillator signal, for a period of conductance which is many times shorter, at least a hundred times, than a period of the control signal. A hold circuit for holding and transferring the signal present across the filter during the period of conductance of the switch is connected to a proportional part of the filter, which hold circuit includes a second switch which is synchronous with the first switch.