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:
Nov. 06, 2018
Filed:
Nov. 22, 2013
Thierry Cassagnes, Tournefeuille, FR;
Hugues Beaulaton, Toulouse, FR;
Laurent Cornibert, Toulouse, FR;
Yean Ling Teo, Goyrans, FR;
Thierry Cassagnes, Tournefeuille, FR;
Hugues Beaulaton, Toulouse, FR;
Laurent Cornibert, Toulouse, FR;
Yean Ling Teo, Goyrans, FR;
NXP USA, Inc., Austin, TX (US);
Abstract
Vibration gyroscope circuitry, connectable to a vibrating MEMS gyroscope, includes drive circuitry for driving the gyroscope and a measurement circuit for providing a drive measurement signal indicating displacement of a mass along a drive axis. Sense circuitry processes a sense measurement signal of the gyroscope indicating displacement of the mass along a sense axis. A digital sample clock generator includes an oscillator for generating a master clock, a counter for counting master clock periods during one period of an input signal derived from the drive measurement signal, and a number count monitor for determining during how many input signal periods the number count stays constant and for comparing a number of constant periods with a critical number of constant periods. A frequency shifter triggers the oscillator to shift the master clock frequency whenever the monitor determines that the number of constant periods exceeds the critical number of constant periods.