JPS57177205A - Frequency signal selecting circuit for atc - Google Patents

Frequency signal selecting circuit for atc

Info

Publication number
JPS57177205A
JPS57177205A JP5966981A JP5966981A JPS57177205A JP S57177205 A JPS57177205 A JP S57177205A JP 5966981 A JP5966981 A JP 5966981A JP 5966981 A JP5966981 A JP 5966981A JP S57177205 A JPS57177205 A JP S57177205A
Authority
JP
Japan
Prior art keywords
filter
frequency
passing frequency
voltage
passing
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
JP5966981A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6260882B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Hiroshi Takenaga
Fusashi Tashiro
Kunio Saito
Kosei Hori
Ikuro Masuda
Sumio Omura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5966981A priority Critical patent/JPS57177205A/ja
Publication of JPS57177205A publication Critical patent/JPS57177205A/ja
Publication of JPS6260882B2 publication Critical patent/JPS6260882B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
JP5966981A 1981-04-22 1981-04-22 Frequency signal selecting circuit for atc Granted JPS57177205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5966981A JPS57177205A (en) 1981-04-22 1981-04-22 Frequency signal selecting circuit for atc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5966981A JPS57177205A (en) 1981-04-22 1981-04-22 Frequency signal selecting circuit for atc

Publications (2)

Publication Number Publication Date
JPS57177205A true JPS57177205A (en) 1982-10-30
JPS6260882B2 JPS6260882B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-12-18

Family

ID=13119823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5966981A Granted JPS57177205A (en) 1981-04-22 1981-04-22 Frequency signal selecting circuit for atc

Country Status (1)

Country Link
JP (1) JPS57177205A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122302A (ja) * 1982-12-25 1984-07-14 Nippon Signal Co Ltd:The 周波数判別装置
JPS59111401U (ja) * 1983-01-17 1984-07-27 株式会社京三製作所 Ａｔｃ車上受信装置
JPS59159601A (ja) * 1983-02-28 1984-09-10 Hitachi Ltd 自動列車制御装置
JPS60160304A (ja) * 1984-01-31 1985-08-21 Toshiba Corp 自動列車制御システム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122302A (ja) * 1982-12-25 1984-07-14 Nippon Signal Co Ltd:The 周波数判別装置
JPS59111401U (ja) * 1983-01-17 1984-07-27 株式会社京三製作所 Ａｔｃ車上受信装置
JPS59159601A (ja) * 1983-02-28 1984-09-10 Hitachi Ltd 自動列車制御装置
JPS60160304A (ja) * 1984-01-31 1985-08-21 Toshiba Corp 自動列車制御システム

Also Published As

Publication number Publication date
JPS6260882B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-12-18

Similar Documents

Publication Publication Date Title
IE821957L (en) Phase-locked loop circuit
JPS5384449A (en) Variable frequency synthesizer
JPS57177205A (en) Frequency signal selecting circuit for atc
JPS57112136A (en) Frequency synthesizer
JPS533765A (en) Phase synchronous oscillating unit
JPS56110306A (en) Voltage control type oscillator for pll frequency synthesizer
JPS56137414A (en) Switching regulator
JPS5767312A (en) Band pass filter following frequency
JPS57135555A (en) Phase continuous fsk modulating circuit
JPS57176845A (en) Phase synchronizing oscillator
JPS5776930A (en) Frequency shift signal generating system using pll
JPS56125144A (en) Delay detector
JPS56103528A (en) Voltage/period conversion type oscillating circuit
JPS5427348A (en) Saw-tooth wave oscillator
JPS57119512A (en) Frequency control system
JPS5420326A (en) Dc/dc converter
JPS56104545A (en) Division ratio setting circuit of pll
JPS56100528A (en) Receiver
JPS5723334A (en) Tuning circuit equipped with vco
JPS579125A (en) Phase shift circuit
JPS56165423A (en) Phase controlling oscillator
JPS5731379A (en) Controlling circuit for inverter
JPS5320847A (en) Automatic pulse phase shifter
JPS5382224A (en) Automatic frequency control circuit
JPS5566142A (en) Automatic frequency control unit