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:
Apr. 27, 2021
Filed:
May. 15, 2020
Nxp Usa, Inc., Austin, TX (US);
Cristian Pavao Moreira, Frouzins, FR;
Didier Salle, Toulouse, FR;
Stephane Damien Thuries, Saubens, FR;
NXP USA, INC., Austin, TX (US);
Abstract
An example apparatus () is for use for use with front-end circuitry () to transmit and receive radar wave signals, The apparatus () includes digital phase locked loop (PLL) circuitry () and a control circuit (). The digital PLL circuitry () provides a chirp sequence with frequency modulated continuous wave signals (FMCW), the FMCW signals being chirps containing a start frequency and a stop frequency, representing a selected chirp bandwidth (BW). The digital PLL circuitry () includes the DCO circuit () which frequency resolution is configured and arranged to be tuned relative to the selected chirp BW, the frequency resolution configured in response to a selected level of capacitance. The control circuit () controls the selected level of capacitance used by the DCO circuit () by changing the frequency resolution of the DCO according to the selected chirp BW, wherein different frequency resolutions are used for a first selected chirp BW and for a second selected chirp BW.