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:
Jul. 10, 2001
Filed:
Nov. 12, 1999
Emanuele Balistreri, Battipaglia, IT;
Marco Burzio, Grugliasco, IT;
Abstract
A phase locked loop circuit includes an input comparator (,) capable of generating a deviation signal which can be used for driving an oscillator (,) so as to generate an output signal (CLKOUT) locked to the input signal. The oscillator (,) can operate according to a plurality of characteristics under the control of a control circuit (,) including searching circuits arranged to carry out a first search phase by scanning the family of characteristics admitted for the operation of the oscillator (,) by bands of progressively reduced width, according to a general, dichotomic procedure. Upon completion of this first search phase, additional circuits of fine search are destined to identify the optimum operating point, compensating possible fluctuations of the characteristics.