JPS5776937A - Distortion compensating system - Google Patents

Distortion compensating system

Info

Publication number
JPS5776937A
JPS5776937A JP55152316A JP15231680A JPS5776937A JP S5776937 A JPS5776937 A JP S5776937A JP 55152316 A JP55152316 A JP 55152316A JP 15231680 A JP15231680 A JP 15231680A JP S5776937 A JPS5776937 A JP S5776937A
Authority
JP
Japan
Prior art keywords
signal
pilot signal
bpf7
inputted
frequency
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.)
Granted
Application number
JP55152316A
Other languages
Japanese (ja)
Other versions
JPS5854536B2 (en
Inventor
Takeshi Koseki
Toshifumi Tamura
Taro Shibagaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55152316A priority Critical patent/JPS5854536B2/en
Publication of JPS5776937A publication Critical patent/JPS5776937A/en
Publication of JPS5854536B2 publication Critical patent/JPS5854536B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal

Landscapes

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

Abstract

PURPOSE:To compensate the timing change of linear and nonlinear distortion, by transmitting a pilot signal superimposing on a main signal, and reproducing thrugh integration after gain control with differentiation ar reception side. CONSTITUTION:With a pilot signal superimposing device 2, an input signal is superimposed on a pilot signal of a prescribed amplitude and frequency obtained from a pilot signal generator 1 as an input analog signal and the result is transmitted to a transmission line 4 with a phototransmitter 3. An optical signal is converted into an electric signal at a photo receiver 5 and inputted to a band rejection filter 6 and a BPF7 having the same center frequency as the pilot signal frequency. The output of the filter 6 is inputted to a variable gain circuit 8 via a differentiator 11 and after the loss of the transmission line 4 is compensated with a level detector 9 receiving the output of the BPF7, transmission waveform is reproduced with an integrator 12 and outputted via an amplifier 10.
JP55152316A 1980-10-31 1980-10-31 Distortion compensation method Expired JPS5854536B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55152316A JPS5854536B2 (en) 1980-10-31 1980-10-31 Distortion compensation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152316A JPS5854536B2 (en) 1980-10-31 1980-10-31 Distortion compensation method

Publications (2)

Publication Number Publication Date
JPS5776937A true JPS5776937A (en) 1982-05-14
JPS5854536B2 JPS5854536B2 (en) 1983-12-05

Family

ID=15537854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55152316A Expired JPS5854536B2 (en) 1980-10-31 1980-10-31 Distortion compensation method

Country Status (1)

Country Link
JP (1) JPS5854536B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526554A1 (en) * 1982-05-06 1983-11-10 Telecommunications Sa METHOD FOR REGULATING LIGHT INFORMATION TRANSMITTING MEANS AND THE SYSTEM FOR IMPLEMENTING THE SAME
JPS6450631A (en) * 1987-08-21 1989-02-27 Oki Electric Ind Co Ltd Optical fiber transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526554A1 (en) * 1982-05-06 1983-11-10 Telecommunications Sa METHOD FOR REGULATING LIGHT INFORMATION TRANSMITTING MEANS AND THE SYSTEM FOR IMPLEMENTING THE SAME
JPS6450631A (en) * 1987-08-21 1989-02-27 Oki Electric Ind Co Ltd Optical fiber transmitter

Also Published As

Publication number Publication date
JPS5854536B2 (en) 1983-12-05

Similar Documents

Publication Publication Date Title
ES8302386A1 (en) Single sideband receiver.
US5617240A (en) Automatic gain control method and device for receiving circuits
DE3363313D1 (en) Carrier frequency system for four-wire operation
JPS5725731A (en) Hybrid circuit
ES8502593A1 (en) Input circuit arrangement for a television receiver.
JPS5776937A (en) Distortion compensating system
GB1535433A (en) Wireless communication receiver with an arrangement for sound transmission and a remote control by means of infrared radiation
US4672452A (en) Device for the automatic precorrection of non-linearities in a power amplification chain for a television transmitter
DE3779708D1 (en) CIRCUIT FOR THE ISOLATION GRANT BETWEEN THE TRANSMISSION WAYS OF A HANDSFREE APPARATUS.
ES463657A1 (en) Automatic chrominance gain control system
US3112462A (en) Volume compression by pulse duration modulation and subsequent demodulation
JPS56112143A (en) Equipment for receiving wave length multiple optical signal
JPS57106247A (en) Analogue optical communication device
JPH0115179B2 (en)
IE903084A1 (en) Apparatus and method for reducing distortion in an analog¹optical transmission system
EP0262911A3 (en) System for transmission loss comparison
SU843263A1 (en) Radio transmitter
SU725244A1 (en) Device for automatic correction of communication channel
SU1332543A1 (en) Single-sideband signal radio receiver
JPS5693491A (en) Television signal light transmission device
JPS6446351A (en) Digital signal receiver
JPS56152348A (en) Photoelectric converting circuit
SU824462A1 (en) Digital information transmission system with fourier transform
JPS57152739A (en) Transmission system for optical cable
SU907818A1 (en) Adapter for matching two-wire channel with four-wire one