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:
Sep. 15, 2026
Filed:
Jun. 19, 2023
Qualcomm Incorporated, San Diego, CA (US);
Shilei Hao, San Diego, CA (US);
Dongling Pan, San Diego, CA (US);
Rui Xu, San Diego, CA (US);
Yiwu Tang, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An apparatus is disclosed that implements an on-chip test tone generator for built-in spur testing. In an example aspect, the apparatus includes an integrated circuit with a test tone generator, at least one reference signal generator, and at least one signal propagation path. The test tone generator includes an amplitude control circuit. The at least one signal propagation path includes a transceiver path, a mixer, and a switch. The transceiver path is configured to be coupled to an antenna. The mixer has a first input coupled to the at least one reference signal generator. The switch is configured to selectively couple a second input of the mixer to the transceiver path or the amplitude control circuit of the at least one test tone generator.