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. 21, 1982
Filed:
Oct. 14, 1980
Richard I Scott, Redhill, GB;
Michael J Underhill, Horsham, GB;
U.S. Philips Corporation, New York, NY (US);
Abstract
A frequency synthesizer of the type which selects pulses from a clock pulse generator (21) to provide a lower output frequency Fo, the synthesizer including an accumulator (22) of the type which, for each input pulse thereto, adds a preselected increment Y to the accumulated value in the accumulator and gives an overflow pulse each time an accumulated value C (where C is equal to or greater than Y) is reached or exceeded and leaves any excess (residue) in the accumulator. In accordance with the invention, adjustable delay means are coupled to the accumulator output such that each output pulse is delayed by an amount which depends on the residue in the accumulator thereby providing a spectrally pure output frequency.