Title:
ONE-DIRECTIONAL TRANSMISSION SIGNAL DISTRIBUTION METHOD, STATION SIDE DEVICE, AND SUBSCRIBER HOME SIDE DEVICE IN PASSIVE OPTICAL NETWORK SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/083384
Kind Code:
A1
Abstract:
Provided are a one-directional transmission signal distribution method, a station
side device, and a subscriber home side device in a passive optical network system.
The one-directional transmission signal distribution method can easily design
a signal-noise (S/N) ratio and easily perform distribution by an electric signal
without requiring an expensive optical amplifier. A multiplexing unit (1-11)
of the station side device (OLT) (1-1) bit-multiplexes a digital signal of one-directional
transmission signal of only a downstream direction with main signal data in the
passive optical network system and transmits it. A bit separation unit (1-21)
of the subscriber home side device (1-2) bit-separates the digital signal of
one-directional transmission signal of only the downstream direction and the
main signal data in the passive optical network system, so as to extract the one-directional
transmission signal of only downstream direction and process a video signal
of the one-directional transmission signal by a video signal processing unit
(1-22).
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Inventors:
YAMASHITA HARUO (JP)
SHIMADA YUICHI (JP)
YOKOMOTO TETSUYA (JP)
SHOUJI HIROSHI (JP)
YOSHIZAWA MASANORI (JP)
ARAI TOSHIHIKO (JP)
SHIMADA YUICHI (JP)
YOKOMOTO TETSUYA (JP)
SHOUJI HIROSHI (JP)
YOSHIZAWA MASANORI (JP)
ARAI TOSHIHIKO (JP)
Application Number:
PCT/JP2006/300828
Publication Date:
July 26, 2007
Filing Date:
January 20, 2006
Export Citation:
Assignee:
FUJITSU ACCESS LTD (JP)
YAMASHITA HARUO (JP)
SHIMADA YUICHI (JP)
YOKOMOTO TETSUYA (JP)
SHOUJI HIROSHI (JP)
YOSHIZAWA MASANORI (JP)
ARAI TOSHIHIKO (JP)
YAMASHITA HARUO (JP)
SHIMADA YUICHI (JP)
YOKOMOTO TETSUYA (JP)
SHOUJI HIROSHI (JP)
YOSHIZAWA MASANORI (JP)
ARAI TOSHIHIKO (JP)
International Classes:
H04J3/00; H04B10/00; H04B10/27; H04B10/272; H04B10/524; H04B10/54; H04L12/44
Foreign References:
| JP2004336773A | 2004-11-25 | |||
| JP2003273823A | 2003-09-26 | |||
| JP2001326616A | 2001-11-22 |
Other References:
OHARA K. ET AL.: "IDM Taju ni yori Gigabitkyu Hoso Shingo o Shuyo Kano na PON System ni Kansuru Kento", IEICE COMMUNICATIONS SOCIETY CONFERENCE KOEN RONBUNSHU, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, 8 September 2004 (2004-09-08), pages B8 - B18, XP003010894
SHITABA T. ET AL.: "GE-PON to Hikari Eizo Haishin tono Hacho Taju Densoji ni Okeru Yudo Raman Scattering no Eikyo", IEICE COMMUNICATIONS SOCIETY CONFERENCE KOEN RONBUMSHU, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, 8 September 2004 (2004-09-08), pages B-8 - B13, XP003010895
SHITABA T. ET AL.: "GE-PON to Hikari Eizo Haishin tono Hacho Taju Densoji ni Okeru Yudo Raman Scattering no Eikyo", IEICE COMMUNICATIONS SOCIETY CONFERENCE KOEN RONBUMSHU, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, 8 September 2004 (2004-09-08), pages B-8 - B13, XP003010895
Attorney, Agent or Firm:
MANABE, Kiyoshi et al. (9-11 Toranomon 2-chome, Minato-k, Tokyo 01, JP)
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