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:
May. 16, 2017
Filed:
Sep. 07, 2015
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Assignee:
Ciena Corporation, Hanover, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/04 (2006.01); H04B 10/61 (2013.01); H04J 14/02 (2006.01); H04B 10/516 (2013.01); H04B 10/50 (2013.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04B 10/516 (2013.01); H04B 10/5055 (2013.01); H04L 27/2627 (2013.01);
Abstract
A high-speed signal generator. A digital signal processing (DSP) block generates a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0 Hz and ±Fs/2. A respective Digital-to-Analog Converter (DAC) processes each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs. A combiner combines the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0 Hz and ±NFs/2.