Title:
TRANSMITTER
Document Type and Number:
Japanese Patent JPH0661973
Kind Code:
A
Abstract:
PURPOSE: To provide a transmitter in which a system whose constitution is simple, and extendability is improved can be constituted.
CONSTITUTION: A light transmitter 1 inputs a direct current light to one edge of an optical fiber 2. Plural modulators 5 modulate carrier signals by video signals from each monitor camera 4. Plural external modulators 3 connected with each modulator 5, and serially connected with the optical fiber 2, modulate optical signals passing through the optical fiber 2 by the carrier signals from the modulators 5. A light receiver 11 connected with the other edge of the optical fiber 2, receives the optical signals. Then, the carrier signals from each modulator 5 are frequencies different at each external modulator 3.
Inventors:
MAEDA KAZUKI
UCHIUMI KUNIAKI
FUJITO KATSUYUKI
YAMAMOTO HIROAKI
FUSE MASARU
UCHIUMI KUNIAKI
FUJITO KATSUYUKI
YAMAMOTO HIROAKI
FUSE MASARU
Application Number:
JP21185192A
Publication Date:
March 04, 1994
Filing Date:
August 07, 1992
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04J14/00; H04B10/2507; H04B10/2587; H04B10/27; H04B10/278; H04B10/80; H04J1/04; H04J14/02; H04L12/42; H04N7/22; H04N21/647; (IPC1-7): H04J14/02; H04B10/20; H04J1/04; H04L12/42; H04N7/22
Attorney, Agent or Firm:
Nakajima Shiro