JPS5588443A - Signal detection circuit - Google Patents

Signal detection circuit

Info

Publication number
JPS5588443A
JPS5588443A JP16334578A JP16334578A JPS5588443A JP S5588443 A JPS5588443 A JP S5588443A JP 16334578 A JP16334578 A JP 16334578A JP 16334578 A JP16334578 A JP 16334578A JP S5588443 A JPS5588443 A JP S5588443A
Authority
JP
Japan
Prior art keywords
signal
detection
delivered
circuit
detection circuit
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
JP16334578A
Other languages
Japanese (ja)
Other versions
JPS6221296B2 (en
Inventor
Daisuke Yoshida
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP16334578A priority Critical patent/JPS5588443A/en
Publication of JPS5588443A publication Critical patent/JPS5588443A/en
Publication of JPS6221296B2 publication Critical patent/JPS6221296B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Near-Field Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: To increase the velocity for the tone burst communication by obtaining the minute coefficient through detection of the increase or decrease of the carriers to be detected, performing the level decision for the carriers and then delivering the result of the level decision in preference to the detection result of the minute coefficient.
CONSTITUTION: The detection is given to the reception of the signals applied to inductive line L which is provided along the traveling line via sensor 10 of signal detection circuit 1, and then reception signal RS is delivered. Signal RS is then applied to band pass filters 11 and 12, and tone signal TS and pilot signal PS are delivered to the output of filters 11 and 12 each. Then output signal TS of filter 11 is detected through detection circuit 13 to deliver tone burst signal TSC, and signal TSC is applied to minute coefficient detection circuit 15 as well as to level comparator circuit 18. And a comparison is given between signal PS obtained through detection of the output of filter 12 through detection circuit 14 and the mean level signal, and the comparison result is applied to preference control circuit 19 to be delivered in preference to the detection result of the minute coefficient delivered through circuit 15.
COPYRIGHT: (C)1980,JPO&Japio
JP16334578A 1978-12-26 1978-12-26 Signal detection circuit Granted JPS5588443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16334578A JPS5588443A (en) 1978-12-26 1978-12-26 Signal detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16334578A JPS5588443A (en) 1978-12-26 1978-12-26 Signal detection circuit

Publications (2)

Publication Number Publication Date
JPS5588443A true JPS5588443A (en) 1980-07-04
JPS6221296B2 JPS6221296B2 (en) 1987-05-12

Family

ID=15772103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16334578A Granted JPS5588443A (en) 1978-12-26 1978-12-26 Signal detection circuit

Country Status (1)

Country Link
JP (1) JPS5588443A (en)

Also Published As

Publication number Publication date
JPS6221296B2 (en) 1987-05-12

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