JPS53138117A - Automatic gain control unit - Google Patents

Automatic gain control unit

Info

Publication number
JPS53138117A
JPS53138117A JP5400977A JP5400977A JPS53138117A JP S53138117 A JPS53138117 A JP S53138117A JP 5400977 A JP5400977 A JP 5400977A JP 5400977 A JP5400977 A JP 5400977A JP S53138117 A JPS53138117 A JP S53138117A
Authority
JP
Japan
Prior art keywords
control unit
gain control
automatic gain
current
transmitting terminal
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
JP5400977A
Other languages
Japanese (ja)
Other versions
JPS5943346B2 (en
Inventor
Kunio Nagasaki
Sakae Kobayashi
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
NEC Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
NEC Corp
Nippon 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 JAPANESE NATIONAL RAILWAYS<JNR>, Japan National Railways, NEC Corp, Nippon Electric Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP52054009A priority Critical patent/JPS5943346B2/en
Publication of JPS53138117A publication Critical patent/JPS53138117A/en
Publication of JPS5943346B2 publication Critical patent/JPS5943346B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Near-Field Transmission Systems (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

PURPOSE: To maintain the received current of the receiver of a train constant by storing the transmitting terminal current corresponding to the transmitting terminal impedance and the transmitting voltage by current at various positions of the train as compared by a comparision arithmetic unit in a memory and by controlling the transmitting terminal current from the leased memory addressed by the unit.
COPYRIGHT: (C)1978,JPO&Japio
JP52054009A 1977-05-10 1977-05-10 automatic gain adjustment device Expired JPS5943346B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52054009A JPS5943346B2 (en) 1977-05-10 1977-05-10 automatic gain adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52054009A JPS5943346B2 (en) 1977-05-10 1977-05-10 automatic gain adjustment device

Publications (2)

Publication Number Publication Date
JPS53138117A true JPS53138117A (en) 1978-12-02
JPS5943346B2 JPS5943346B2 (en) 1984-10-22

Family

ID=12958571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52054009A Expired JPS5943346B2 (en) 1977-05-10 1977-05-10 automatic gain adjustment device

Country Status (1)

Country Link
JP (1) JPS5943346B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008265640A (en) * 2007-04-24 2008-11-06 Kyosan Electric Mfg Co Ltd Transmission device for track circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215440U (en) * 1988-07-09 1990-01-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008265640A (en) * 2007-04-24 2008-11-06 Kyosan Electric Mfg Co Ltd Transmission device for track circuit

Also Published As

Publication number Publication date
JPS5943346B2 (en) 1984-10-22

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