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:
Jun. 02, 2020
Filed:
May. 30, 2019
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Yanzhao Lu, Dongguan, CN;
Yuanda Huang, Dongguan, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/516 (2013.01); H04B 10/60 (2013.01); H04B 10/556 (2013.01); H04B 10/25 (2013.01); H04B 1/68 (2006.01); H04N 21/61 (2011.01);
U.S. Cl.
CPC ...
H04B 10/5563 (2013.01); H04B 1/68 (2013.01); H04B 10/25 (2013.01); H04B 10/60 (2013.01); H04N 21/61 (2013.01);
Abstract
A signal processing method is provided. Under the method, a first digital signal can be obtained by an optical transmitter. The first digital signal is a one-dimensional bipolar digital signal. A spectral compression and filtering can be performed by the optical transmitter on the first digital signal to generate a second digital signal. A frequency shift can be performed by the optical transmitter on the second digital signal such that a center location of a spectrum of the frequency-shifted second digital signal is at a frequency of 0.