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. 07, 2023
Filed:
Oct. 18, 2021
Mediatek Inc., Hsin-Chu, TW;
Jui-Lin Hsu, Hsinchu, TW;
Hsiang-Yun Chu, Hsinchu, TW;
Yen-Tso Chen, Hsinchu, TW;
Jen-Hao Cheng, Hsinchu, TW;
Wei-Hsiu Hsu, Hsinchu, TW;
Tzu-Chin Lin, Hsinchu, TW;
Chih-Ming Hung, San Jose, CA (US);
Jing-Hong Conan Zhan, Hsinchu, TW;
MEDIATEK INC., Hsin-Chu, TW;
Abstract
A semiconductor chip includes a first wireless communication circuit, a local oscillator (LO) buffer, and an auxiliary path. The first wireless communication circuit has a signal path, wherein the signal path has a mixer input port and a signal node distinct from the mixer input port. The auxiliary path is used to electrically connect the LO buffer to the signal node of the signal path. The LO buffer is reused for a loop-back test function through the auxiliary path.