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. 29, 2007
Filed:
Jun. 12, 2003
Han-lim Lee, Seoul, KR;
Ji-chai Jeong, Seoul, KR;
Yong-hoon Kim, Seoul, KR;
Yun-je OH, Yongin-shi, KR;
Seong-taek Hwang, Pyongtaek-shi, KR;
Han-Lim Lee, Seoul, KR;
Ji-Chai Jeong, Seoul, KR;
Yong-Hoon Kim, Seoul, KR;
Yun-Je Oh, Yongin-shi, KR;
Seong-Taek Hwang, Pyongtaek-shi, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Abstract
A duobinary optical transmission apparatus is provided to generate duobinary optical signals, without using an electric low-pass-filter (LPF), by restricting a bandwidth of a Mach-Zehnder-interferometer-type optical intensity modulator (MZ MOD). Alternatively, a LPF having a single pole with a single capacitor is implemented instead of an expensive LPF, thereby providing a simple transmitter with a lower production cost in comparison with a transmitter using a conventional electric LPF.