Title:
放送/映像信号の保安が可能な実時間放送/映像を提供するイーサネット(登録商標)受動型光加入者ネットワーク
Document Type and Number:
Japanese Patent JP4009282
Kind Code:
B2
Abstract:
An Ethernet-PON that accommodates real-time broadcast/image signals and provides security for broadcast/image signals, allows user authentication without a CAS. An OLT in the Ethernet-PON switches digital broadcast/image data signals from a broadcaster according to respective broadcast/image selection information of users, and scrambles the switched broadcast/image data on a user-by-user basis. The scrambled data is multiplexed and converted to a broadcast/image optical signal, which is transmitted, combined with a communication signal from an IP network, to ONTs through an optical splitter. The ONTs select broadcast/image data from the broadcast/image signals according to the respective broadcast/image selection information.
Inventors:
Ki-Chul, Li
Ki-sun, Nam
Yun-Je, Oh
Taesung, Park
Ki-sun, Nam
Yun-Je, Oh
Taesung, Park
Application Number:
JP2004277638A
Publication Date:
November 14, 2007
Filing Date:
September 24, 2004
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
H04L12/44; H04J14/00; H04J14/02; H04L12/28
Domestic Patent References:
| JP2003092583A | ||||
| JP2003198576A | ||||
| JP2002247078A | ||||
| JP8340579A | ||||
| JP2005027302A |
Attorney, Agent or Firm:
Mizuno Katsufumi
Masayuki Kishida
Ogawa Hidenori
Kawakami adult
Masayuki Kishida
Ogawa Hidenori
Kawakami adult