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:
Apr. 12, 2005
Filed:
Nov. 01, 2002
IN Kui Cho, Daejon-Shi, KR;
Keun Byoung Yoon, Daejon-Shi, KR;
Sang Pil Han, Daejon-Shi, KR;
Seung Ho Ahn, Daejon-Shi, KR;
Myung Yung Jeong, Daejon-Shi, KR;
In Kui Cho, Daejon-Shi, KR;
Keun Byoung Yoon, Daejon-Shi, KR;
Sang Pil Han, Daejon-Shi, KR;
Seung Ho Ahn, Daejon-Shi, KR;
Myung Yung Jeong, Daejon-Shi, KR;
Electronics and Telecommunication Research Institute, Daejon, KR;
Abstract
An electro-optical circuit board (EOCB) in which an optical waveguide for transmitting an optical signal, and a driving unit/receiving unit and an optical source/optical detector for converting an electrical signal into the optical signal, and vice versa are integrated. The EOCB has a structure from which a lens is excluded for the purpose of an economical and efficient optical coupling between the optical waveguide and the optical source/optical detector. The optical source/optical detector are buried within a trench of a metal optical bench. The optical waveguide is then attached on the surface of the optical source/optical detector by means of an epoxy.