Title:
RADIO COMMUNICATION SYSTEM, PARTICULARLY CELL-SHAPED VEHICLE WIRELESS SYSTEM
Document Type and Number:
Japanese Patent JPH04233339
Kind Code:
A
Abstract:
PURPOSE: To simplify an expensive transmission equipment in a system having many radio stations like a cell vehicle radio system. CONSTITUTION: A transmission equipment 10 is connected to a radio station 2 by a light transmitting body 4 and transmits an optical carrier having a first optical frequency ν1 modulated by an information signal and an optical carrier having a second non-modulated optical frequency ν0 to the radio station 2, and optical frequencies ν1 and ν0 of two optical carriers are different by a value of a radio carrier frequency f1 , and the radio station 2 is provided with a device 6 which mixes two carriers to generate a radio signal which includes an information signal and has the carrier frequency f1 as a difference signal between them.
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Inventors:
RORUFU HAIDEMAN
Application Number:
JP14354891A
Publication Date:
August 21, 1992
Filing Date:
June 14, 1991
Export Citation:
Assignee:
ALCATEL NV
International Classes:
G02B6/00; G02F2/00; H04B7/26; H04B10/12; H04B10/14; H04B10/2575; H04W56/00; H04W92/00; (IPC1-7): G02B6/00; G02F2/00; H04B7/26; H04B9/00
Attorney, Agent or Firm:
Takehiko Suzue