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:
Aug. 11, 2015
Filed:
Jun. 29, 2012
Sil-gu Mun, Daejeon-si, KR;
Eun-gu Lee, Daejeon-si, KR;
Dong-min Seol, Seoul, KR;
Eui-suk Jung, Daejeon-si, KR;
Sang-soo Lee, Daejeon-si, KR;
Jeong-sik Cho, Daejeon-si, KR;
Sil-Gu Mun, Daejeon-si, KR;
Eun-Gu Lee, Daejeon-si, KR;
Dong-Min Seol, Seoul, KR;
Eui-Suk Jung, Daejeon-si, KR;
Sang-Soo Lee, Daejeon-si, KR;
Jeong-Sik Cho, Daejeon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon-si, KR;
Abstract
Provided are an automatic wavelength recognition apparatus and method. The automatic wavelength recognition apparatus includes: a division unit receiving a single optical signal and dividing the received optical signal into a plurality of optical signals; a plurality of filter units filtering the optical signals and having different and wavelength-dependent pass characteristics; a plurality of detection units detecting the filtered optical signals and measuring intensities of the detected optical signals; at least one comparison unit comparing outputs of any two of the detection units; and a wavelength determination unit receiving an output of the at least one comparison unit and determining a wavelength of the above single optical signal using a pre-stored look-up table.