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

JPS56122246A - Control system of transmission output - Google Patents

Control system of transmission output

Info

Publication number
JPS56122246A
JPS56122246A JP2479180A JP2479180A JPS56122246A JP S56122246 A JPS56122246 A JP S56122246A JP 2479180 A JP2479180 A JP 2479180A JP 2479180 A JP2479180 A JP 2479180A JP S56122246 A JPS56122246 A JP S56122246A
Authority
JP
Japan
Prior art keywords
pulse
reception
time slot
field intensity
control
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
JP2479180A
Other languages
Japanese (ja)
Inventor
Toshiyuki Morita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2479180A priority Critical patent/JPS56122246A/en
Publication of JPS56122246A publication Critical patent/JPS56122246A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To suppress the fluctuation of the reception field intensity, by transmitting the signal from the reception side to the transmission side to control the transmission output based on the detection information of the reception field intensity due to the AGC current. CONSTITUTION:The reception field intensity caused by the AGC current is decided in three steps based on the threshold levels (a) and (b) and by the receiver 5b in the receiving station B. In other words, the level between (a) and (b), the level less than (a) or the level higher than (b) is decided to produce the command information. This information is coded to be turned into the control pulse, and a conversion of speed is given to the main signal at the speed converting part 1b to form an idle time slot. The control pulse is inserted into the idle time slot to be transmitted to the transmitting station A via the modulating part 2b, the transmitter 3b, the output control part 4b, the transmission/reception sharing part 10b and the antenna 11b each. The pulse signal is received at the station A via the receiver 5a, the demodulating part 6a and the speed converting part 7a each. Then the fact that the contol pulse is inserted into the specified time slot is detected. After this, the control pulse is sent to the decoding part 9a.
JP2479180A 1980-02-29 1980-02-29 Control system of transmission output Pending JPS56122246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2479180A JPS56122246A (en) 1980-02-29 1980-02-29 Control system of transmission output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2479180A JPS56122246A (en) 1980-02-29 1980-02-29 Control system of transmission output

Publications (1)

Publication Number Publication Date
JPS56122246A true JPS56122246A (en) 1981-09-25

Family

ID=12148001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2479180A Pending JPS56122246A (en) 1980-02-29 1980-02-29 Control system of transmission output

Country Status (1)

Country Link
JP (1) JPS56122246A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495648A (en) * 1982-12-27 1985-01-22 At&T Bell Laboratories Transmitter power control circuit
JPS6050549U (en) * 1983-09-12 1985-04-09 株式会社ケンウッド communication device
JPS61278222A (en) * 1985-06-03 1986-12-09 Nippon Denzai Kogyo Kenkyusho:Kk Transmission controlling device
US4775995A (en) * 1986-12-22 1988-10-04 Motorola, Inc. Adaptive splatter control
US4777653A (en) * 1985-12-20 1988-10-11 Telecommunications Radioelectriques Et Telephoniques T.R.T. Apparatus for controlling transmission power over a digital radio communication channel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495648A (en) * 1982-12-27 1985-01-22 At&T Bell Laboratories Transmitter power control circuit
JPS6050549U (en) * 1983-09-12 1985-04-09 株式会社ケンウッド communication device
JPS61278222A (en) * 1985-06-03 1986-12-09 Nippon Denzai Kogyo Kenkyusho:Kk Transmission controlling device
JPH0711035U (en) * 1985-06-03 1995-02-14 株式会社日本システム研究所 Proximity opposed module with output control function
US4777653A (en) * 1985-12-20 1988-10-11 Telecommunications Radioelectriques Et Telephoniques T.R.T. Apparatus for controlling transmission power over a digital radio communication channel
US4775995A (en) * 1986-12-22 1988-10-04 Motorola, Inc. Adaptive splatter control

Similar Documents

Publication Publication Date Title
GB2132454B (en) Improvements in or relating to radio communication apparatus and systems
DE3584176D1 (en) Modulator-demodulator.
DE69733522D1 (en) CONTROL OF THE STRENGTH OF THE PILOT SIGNAL IN A MESSAGE TRANSMISSION SYSTEM WITH SATELLITES IN A LOW CIRCUIT
SG52761A1 (en) Multiplexed address control in a tdm communication system
GB1137498A (en) Improvements in or relating to communications systems
JPS56122246A (en) Control system of transmission output
GB1031697A (en) Improvements in or relating to receivers for binary coded frequency shift-keyed signals
JPS57155856A (en) Adaptive modulation system
GB2258374A (en) Adjusting the level of an audio signal
JPS57152242A (en) Mobile communication control system
GB9008374D0 (en) Communication system
JPS575465A (en) Facsimile signal transmission system
JPS63274887A (en) Interrogator for identification
JPS6243613B2 (en)
JPS56123131A (en) Radio repeater
JPS56164654A (en) Data transmitting and receiving device
JPS57129579A (en) Facsimile control system
JPS5528615A (en) Data communication system
JPS5487404A (en) Loop data transmission system
SU886307A2 (en) Device for transmitting and receiving discrete signals
IL91785A (en) Method and apparatus for controlling the sensitivity of radio receivers
JPS57116455A (en) Information transmitter
JPS56157158A (en) Voice message transmitter device
SU1580575A1 (en) Transceiver device for transmission of messages with pulse-code modulation
JPS56115070A (en) Facsimile repeating device