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:
Sep. 14, 2010
Filed:
Dec. 05, 2006
Han-lim Lee, Seoul, KR;
Seong-taek Hwang, Pyeongtaek-si, KR;
Byung-jik Kim, Seongnam-si, KR;
Gyu-woong Lee, Suwon-si, KR;
Hoon Kim, Suwon-si, KR;
Jae-hoon Lee, Seoul, KR;
Yong-gyoo Kim, Seoul, KR;
Sang-ho Kim, Seoul, KR;
Sung-kee Kim, Suwon-si, KR;
Han-Lim Lee, Seoul, KR;
Seong-Taek Hwang, Pyeongtaek-si, KR;
Byung-Jik Kim, Seongnam-si, KR;
Gyu-Woong Lee, Suwon-si, KR;
Hoon Kim, Suwon-si, KR;
Jae-Hoon Lee, Seoul, KR;
Yong-Gyoo Kim, Seoul, KR;
Sang-Ho Kim, Seoul, KR;
Sung-Kee Kim, Suwon-si, KR;
Samsung Electronics Co., Ltd., Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, KR;
Abstract
Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.