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. 02, 2021
Filed:
Aug. 03, 2018
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Kenji Komori, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
A loop-back test is to be executed during wireless transmission in a circuit that performs wireless communication. A transmission circuit modulates a transmission information signal and supplies the transmission information signal, as a transmission signal, to an antenna. A loop-back test signal generation circuit modulates a predetermined signal to be modulated and supplies the predetermined signal to be modulated as a loop-back test signal. A selection unit selects one of a reception signal from the antenna or the loop-back test signal, and supplies the selected signal as a signal to be demodulated. A reception circuit demodulates the signal to be demodulated and acquires a reception information signal. A test circuit compares the reception information signal and the predetermined signal to be modulated.