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:
Aug. 26, 2025
Filed:
Dec. 23, 2022
Cypress Semiconductor Corporation, San Jose, CA (US);
Igor Kolych, Lviv, UA;
Kiran Uln, Pleasanton, CA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
Techniques are disclosed to determine AoA of signals using co-located single-antenna radios such as BLE and Wi-Fi radios usually found in a wireless device. The co-located radios may have separate voltage controlled oscillators (VCO) that are not phase synchronized. The disclosed techniques use an internal path connecting the two radios through a RF switch under the control of a switch controller to allow the radios to synchronize or to compensate for their oscillator phase offset. The radios may use the RF switches of the internal path and RF switches between the radios and their antennas to sequence through an incident phase measurement stage to measure the phase difference of an incident signal received concurrently by the antennas and a radio synchronization stage to measure their oscillator phase offset to estimate the AoA of an incident signal. During the radio synchronization stage, the two radios are coupled through the internal path.