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:
Nov. 08, 2011
Filed:
Jan. 10, 2006
Applicant:
Huan-shang Tsai, Cupertino, CA (US);
Inventor:
Huan-Shang Tsai, Cupertino, CA (US);
Assignee:
Infinera Corporation, Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A delay line for deployment in an equalizer to insert a delay in a signal received by the delay line employs a plurality of cascaded delay stages where the delay per stage provided by an active unit-gain amplifier in each stage that provides sufficient impedance mismatch between the delay stages without substantial deterioration of the frequency response of the client signal undergoing deterioration of the frequency response of the client signal undergoing delay.