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:
Jan. 31, 2023
Filed:
Jun. 10, 2020
Apple Inc., Cupertino, CA (US);
Liang Han, Sunnyvale, CA (US);
Enrique Ayala Vazquez, Watsonville, CA (US);
Thomas E. Biedka, San Jose, CA (US);
Hongfei Hu, Cupertino, CA (US);
Erdinc Irci, Sunnyvale, CA (US);
Nanbo Jin, San Jose, CA (US);
James G. Judkins, Campbell, CA (US);
Victor C. Lee, Santa Clara, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Mattia Pascolini, San Francisco, CA (US);
Ming-Ju Tsai, Sunnyvale, CA (US);
Yiren Wang, Cupertino, CA (US);
Yuancheng Xu, San Jose, CA (US);
Yijun Zhou, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.