发明名称 |
Optical subscriber network system for receiving broadcast/communication signals |
摘要 |
<p>Disclosed is an optical subscriber network system for performing bidirectional transmission/reception of digital broadcast signals and Internet signals. The optical subscriber network system of the invention includes a server-end bidirectional optical transmitter and a subscriber-end bidirectional optical receiver. The server-end bidirectional optical transmitter includes: a first semiconductor laser for transmitting digital broadcast signals; a second semiconductor laser for transmitting downstream Internet data; a server-end photodiode for receiving upstream Internet data; a BPF (Band Pass Filter) mounted in front of the service-end photodiode, for selecting the upstream Internet data only; and, a multi-branch optical waveguide element for selecting I/O (Input/Output) data. The subscriber-end bidirectional optical receiver includes a subscriber-end multi-branch optical waveguide element for receiving/selecting data transmitted from the server-end bidirectional optical transmitter; a first photodiode for receiving digital broadcast data transmitted from the server-end bidirectional optical transmitter; a second photodiode for receiving downstream Internet data transmitted from the server-end bidirectional optical transmitter; and, a subscriber-end semiconductor laser for the upstream Internet data. <IMAGE></p> |
申请公布号 |
EP1401124(A2) |
申请公布日期 |
2004.03.24 |
申请号 |
EP20030021466 |
申请日期 |
2003.09.23 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, CHAN-YOUL;KIM, CHANG-DONG;LEE, CHANG-HYUN;KOH, JUN-HO;OH, YUN-JE |
分类号 |
H04N7/22;H04B10/00;H04B10/556;H04J14/00;H04J14/02;H04L5/14;H04L12/28;H04N21/61;H04N21/647;(IPC1-7):H04J14/02;H04B10/207;H04N7/173 |
主分类号 |
H04N7/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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