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. 03, 2020
Filed:
Oct. 30, 2018
Qorvo Us, Inc., Greensboro, NC (US);
Hans Van Driest, The Hague, NL;
Qorvo US, Inc., Greensboro, NC (US);
Abstract
Phase detector circuitry includes oscillator circuitry, edge detection and correction circuitry, sampler circuitry, and adder circuitry. The oscillator circuitry is configured to provide a sawtooth oscillator signal. The edge detection and correction circuitry is configured to receive an in-phase signal and a quadrature signal, provide an edge detection signal during each edge of the in-phase signal and the quadrature signal, and provide an edge correction signal based on whether the edge is in the in-phase signal or the quadrature signal and whether the edge is a rising edge or a falling edge. The sampler circuitry is configured to sample the sawtooth oscillator signal in response to the edge detection signal. The adder circuitry is configured to subtract the edge correction signal from the sampled sawtooth oscillator signal to provide a phase estimate signal.