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:
Feb. 23, 2021
Filed:
Dec. 26, 2019
Intel Corporation, Santa Clara, CA (US);
Eli Borokhovich, Modiin-Maccabim-Reut, IL;
Assaf Ben-Bassat, Haifa, IL;
Shahar Gross, Nes-Tziona, IL;
Nahum Kimiagarov, Holon, IL;
Intel Corporation, Santa Clara, CA (US);
Abstract
A closed loop transmitter (Tx) calibration system is disclosed. The closed loop Tx calibration system comprises a transmitter circuit configured to generate a Tx output signal at a Tx output frequency based on a Tx local oscillator (LO) signal. The closed loop Tx calibration system further comprises a loop back (LPBK) receiver circuit coupled to the transmitter circuit and configured to downconvert the Tx output signal at the Tx output frequency to form an LPBK baseband signal at an LPBK intermediate frequency (IF), based on an LPBK LO signal. In some embodiments, the LPBK IF frequency is different from zero. In some embodiments, the closed loop Tx calibration system further comprises an LO generation circuit configured to generate the Tx LO signal and the LPBK LO signal from a single phase locked loop (PLL) source, based on utilizing a digital to time converter (DTC) circuit.