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. 14, 2021
Filed:
Mar. 12, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Binlin Deng, Shenzhen, CN;
Lei Wang, Wuhan, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A calibration apparatus in a wavelength division multiplexing system includes a sending module configured to send a first detection signal to a first multiplexing device; a receiving module configured to receive the first detection signal that passes through the first multiplexing device, and receive a second detection signal that passes through the first multiplexing device and a second multiplexing device; and a processing module configured to adjust a center frequency of the first detection signal, so that an adjusted center frequency of the first detection signal is aligned with a center frequency of the first multiplexing device, and adjust a center frequency of the second detection signal and the center frequency of the first multiplexing device, so that the center frequency of the first multiplexing device is aligned with the center frequency of the second detection signal.