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. 30, 2009
Filed:
Jan. 31, 2005
Yu-min Lin, Sijhih, TW;
Maria C. Yuang, Hsinchu, TW;
San-liang Lee, Taipei, TW;
Winston I. Way, Irvine, CA (US);
Yu-Min Lin, Sijhih, TW;
Maria C. Yuang, Hsinchu, TW;
San-Liang Lee, Taipei, TW;
Winston I. Way, Irvine, CA (US);
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An all-optical label swapping system and method superimposes a low-speed ASK label on top of a high-speed DC-balanced-line-coded ASK payload. An old ASK label is erased by modulating the combined payload and label signal with the inverse of the received ASK label. This ASK labeling technique requires only low speed external modulators and low speed optical receivers to perform the label swapping mechanism, and does not require sophisticated optical components.