JPS5476205A - Signal detection system - Google Patents

Signal detection system

Info

Publication number
JPS5476205A
JPS5476205A JP14369477A JP14369477A JPS5476205A JP S5476205 A JPS5476205 A JP S5476205A JP 14369477 A JP14369477 A JP 14369477A JP 14369477 A JP14369477 A JP 14369477A JP S5476205 A JPS5476205 A JP S5476205A
Authority
JP
Japan
Prior art keywords
recording
signal
detected
automatic stop
audio signal
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
JP14369477A
Other languages
Japanese (ja)
Inventor
Yoshio Maniwa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14369477A priority Critical patent/JPS5476205A/en
Publication of JPS5476205A publication Critical patent/JPS5476205A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable automatic stop signal and control signal to be surely detected by recording the automatic stop signal and contol signal composed of burst waves of low frequencies on the same track as for audio signal. CONSTITUTION:In a learning machine circuit consisting of a recording medium I, recording part II, reproducing part III, the audio signal supplied from termianal AU at the recording is removed of low frequency components of less effect on the articulation of voice and is then recorded in the recording medium I with a recording head 5. After recording of the desired audio signal has been made, the burst waves of the automatic stop signal and control signal are supplied from terminal SC to a mixer 2 and are recorded. At the reproducing, the audio signal having been detected with a rproducing head 10 is reproduced via speaker 13. Next, when the automatic stop signal and control signal are detected, the detection signals pass through a band-pass fiter 14 and are detected by a tracking filter 15 constituted by a PLL.
JP14369477A 1977-11-30 1977-11-30 Signal detection system Pending JPS5476205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14369477A JPS5476205A (en) 1977-11-30 1977-11-30 Signal detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14369477A JPS5476205A (en) 1977-11-30 1977-11-30 Signal detection system

Publications (1)

Publication Number Publication Date
JPS5476205A true JPS5476205A (en) 1979-06-18

Family

ID=15344781

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14369477A Pending JPS5476205A (en) 1977-11-30 1977-11-30 Signal detection system

Country Status (1)

Country Link
JP (1) JPS5476205A (en)

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