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:
Mar. 23, 2010
Filed:
Dec. 29, 2004
Johannes Petrus Maria Van Lammeren, Nijmegen, NL;
Jozef Jacobus Agnes Maria Verlinden, Eindhoven, NL;
Edwin Jan Schapendonk, Nijmegen, NL;
Johannes Petrus Maria Van Lammeren, Nijmegen, NL;
Jozef Jacobus Agnes Maria Verlinden, Eindhoven, NL;
Edwin Jan Schapendonk, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
The present invention relates to a phase locked loop arrangement having an oscillator circuit () controlled in response to an output signal of a phase or frequency detection circuit (), wherein change control () are provided for generating a blocking signal in response to the outputs of a first timer () to which a predetermined threshold frequency is supplied and a second timer () to which an output frequency of the oscillator circuit () is supplied. Based on the blocking signal, blocking () suppress supply of the output signal to said oscillator circuit (). Thereby, the output frequency of the PLL arrangement can be prevented from changing beyond the frequency threshold, while only one PLL circuit is required.