[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS56123131A - Radio repeater - Google Patents

Radio repeater

Info

Publication number
JPS56123131A
JPS56123131A JP2898780A JP2898780A JPS56123131A JP S56123131 A JPS56123131 A JP S56123131A JP 2898780 A JP2898780 A JP 2898780A JP 2898780 A JP2898780 A JP 2898780A JP S56123131 A JPS56123131 A JP S56123131A
Authority
JP
Japan
Prior art keywords
information
signal
radio wave
radio
end signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2898780A
Other languages
Japanese (ja)
Inventor
Masayuki Oishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2898780A priority Critical patent/JPS56123131A/en
Publication of JPS56123131A publication Critical patent/JPS56123131A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To enable radio repeating with a single wave by storing received information and by transmitting the stored signal with a radio wave of the same frequency with the received radio wave. CONSTITUTION:To information 1 transmitted from information transmitting station 5, a start signal and end signal are added. A series of those signals is transmitted as radio wave 12 from radio transmitter 4a via encoding device 2 and modulator 3a and with the end signal, the transmission is stopped. At repeater station 15, receiver 6b in stand-by mode receives the start signal and demodulator 9b and memory part 14 start operating and stops with the end signal. The signal is read out of memory part 14 successively and transmitted from radio transmitter 4b with radio wave 12 of the same frequency as that in reception, and the end signal stops the transmission and also places receiver 6b in the stand-by state. Information transmitting station 11 receives and demodulates this radio wave and then decodes it to obtain information 1' equal to information 1.
JP2898780A 1980-03-05 1980-03-05 Radio repeater Pending JPS56123131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2898780A JPS56123131A (en) 1980-03-05 1980-03-05 Radio repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2898780A JPS56123131A (en) 1980-03-05 1980-03-05 Radio repeater

Publications (1)

Publication Number Publication Date
JPS56123131A true JPS56123131A (en) 1981-09-28

Family

ID=12263760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2898780A Pending JPS56123131A (en) 1980-03-05 1980-03-05 Radio repeater

Country Status (1)

Country Link
JP (1) JPS56123131A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972240A (en) * 1982-10-18 1984-04-24 Oki Electric Ind Co Ltd Transmission and reception switching control system of radio repeater
JPS60189340A (en) * 1984-03-07 1985-09-26 Nippon Signal Co Ltd:The Information transmitting device
JPS6170822A (en) * 1984-09-14 1986-04-11 Hitachi Denshi Ltd Radio relay system
JPH021628A (en) * 1988-06-09 1990-01-05 Nagano Kogyo Kk Radio relay system
JP2007175224A (en) * 2005-12-27 2007-07-12 Seiki Juko Kk Middle shelf mounting mechanism of rack

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972240A (en) * 1982-10-18 1984-04-24 Oki Electric Ind Co Ltd Transmission and reception switching control system of radio repeater
JPH0423851B2 (en) * 1982-10-18 1992-04-23 Oki Electric Ind Co Ltd
JPS60189340A (en) * 1984-03-07 1985-09-26 Nippon Signal Co Ltd:The Information transmitting device
JPS6170822A (en) * 1984-09-14 1986-04-11 Hitachi Denshi Ltd Radio relay system
JPH021628A (en) * 1988-06-09 1990-01-05 Nagano Kogyo Kk Radio relay system
JP2007175224A (en) * 2005-12-27 2007-07-12 Seiki Juko Kk Middle shelf mounting mechanism of rack

Similar Documents

Publication Publication Date Title
EP0056686A3 (en) Access control card
TW344906B (en) Timepiece including a receiving and/or transmitting antenna for radio broadcast signals
ES8503901A1 (en) Piezo-electric terminal station for communications system
CA2315489A1 (en) Radio communication apparatus and radio communication method
HK55596A (en) Process for transmitting and/or evaluating on the receiver side information inside a radio signal
JPS55143854A (en) Mobile radio space diversity system using optical fiber
JPS5617563A (en) Facsimile storing and converting device
EP0144245A3 (en) Transmitter/receiver system
JPS56123131A (en) Radio repeater
JPS55114046A (en) Radio sound information system
JPS5577247A (en) Diversity transmitter-receiver
CA2042563A1 (en) Method and apparatus for transmitting a signal with an offset which follows a received signal
JPS5755632A (en) Radio repeating device
JPS5648731A (en) Radio communication unit for fixed form of information
AU530882B2 (en) Data burst transmission
JPS5665538A (en) Control signal relay system for mobile communication
GB1534832A (en) Selective call radio communication receivers
JPS55161429A (en) Signal transmitting and receiving system
JPS5624867A (en) Facsimile simultaneous transmission and reception system
JPS56106441A (en) Remote monitor controlling device
JPS54127212A (en) Transmission mode signal device between facsimile transmitter and receiver
JPS5642448A (en) Radio transmission-reception system
JPS57204653A (en) Transmitting and receiving device
JPS5791067A (en) Data transmission and reception device
JPS6460135A (en) Radiocommunication system