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. 06, 2014
Filed:
Oct. 06, 2011
Dayou Qian, Princeton, NJ (US);
Junqiang HU, Princeton, NJ (US);
Ting Wang, Princeton, NJ (US);
Yoshiaki Aono, Chiba, JP;
Tsutomu Tajima, Chiba, JP;
Dayou Qian, Princeton, NJ (US);
Junqiang Hu, Princeton, NJ (US);
Ting Wang, Princeton, NJ (US);
Yoshiaki Aono, Chiba, JP;
Tsutomu Tajima, Chiba, JP;
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
Methods and devices for compensating for chromatic dispersion are shown that include receiving an input data signal, applying a filter to the data signal, and outputting a CD compensated signal. Applying the filter includes convolving known filter coefficients with a plurality of delayed versions of the data signal using addition and at least one inverse sign operation or using lookup tables and combining outputs to produce a CD compensated signal.