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Title:
OPTICAL CATV SYSTEM
Document Type and Number:
Japanese Patent JPH05347760
Kind Code:
A
Abstract:

PURPOSE: To prevent the degradation of image quality due to the multipath reflection caused on an optical transmission line in an optical CATV system which transmits the video signals by the optical signals.

CONSTITUTION: An optical CATV system includes an optical image transmitting part 1 which converts the transmitting video signals to the optical signals by an optical transmission part 6, an optical transmission line 2 which transmits the optical signals, and a reception part 3 including an optical reception part 7 which converts the optical signals transmitted via the line 2 into the electric signals and a monitor part 8 which performs the video display. Then the part 1 is provided with a multiplexing part 4 which multiplexes the multi-carrier signal or the noise signal which is off the band width of the video signal received from an outside and width signal output part 5 on the video signals. The signal obtained by multiplexing the transmitting video signal to the outside band width signal is converted to an optical signal and sent to the line 2.


Inventors:
YAMASHITA MASAHIKO
ICHIKAWA AKIHIKO
Application Number:
JP1992000154770
Publication Date:
December 27, 1993
Filing Date:
June 15, 1992
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
H04J14/00; H04B10/2507; H04B10/54; H04J14/02; H04N7/173; H04N7/22; H04N21/222; H04N21/647; (IPC1-7): H04N7/173; H04J14/02; H04N7/22
Attorney, Agent or Firm:
柏谷 昭司 (外1名)



 
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