JPS567252A - Control signal detecting system in sound reproducing device - Google Patents

Control signal detecting system in sound reproducing device

Info

Publication number
JPS567252A
JPS567252A JP7997679A JP7997679A JPS567252A JP S567252 A JPS567252 A JP S567252A JP 7997679 A JP7997679 A JP 7997679A JP 7997679 A JP7997679 A JP 7997679A JP S567252 A JPS567252 A JP S567252A
Authority
JP
Japan
Prior art keywords
signal
control signal
sound
frequency
modulation
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
JP7997679A
Other languages
Japanese (ja)
Other versions
JPS6032267B2 (en
Inventor
Yoshitoshi Yamauchi
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 JP54079976A priority Critical patent/JPS6032267B2/en
Publication of JPS567252A publication Critical patent/JPS567252A/en
Publication of JPS6032267B2 publication Critical patent/JPS6032267B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to take out a control signal in distinction from the general sound signal surely for reproducing, by using the control signal obtained by amplitude-modulating the carrier signal of a sine wave within the audible frequency range by the modulation signal of a specific frequency.
CONSTITUTION: The sound signal and the control signal obtained by amplitude- modulating a carrier signal within the audible frequency range by the modulation signal of a specific frequency are recorded in one track of the recording medium. In case that the reproduced signal input to signal amplifying part 1 is the general sound signal, the sound burst wave exceeding the modulation frequency of the control signal is eliminated by sound burst wave detecting part 2 and low-pass filter part 3, and only frequency components of the modulation frequency or less are input to counter part 5; and meanwhile, the sound signal is input to part 4, which detects frequency components other than carrier components, also, and therefore, counter part 5 is cleared not to output the sound signal. When the control signal is reproduced, it is output from counter part 5.
COPYRIGHT: (C)1981,JPO&Japio
JP54079976A 1979-06-25 1979-06-25 Control signal detection method in audio playback device Expired JPS6032267B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54079976A JPS6032267B2 (en) 1979-06-25 1979-06-25 Control signal detection method in audio playback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54079976A JPS6032267B2 (en) 1979-06-25 1979-06-25 Control signal detection method in audio playback device

Publications (2)

Publication Number Publication Date
JPS567252A true JPS567252A (en) 1981-01-24
JPS6032267B2 JPS6032267B2 (en) 1985-07-26

Family

ID=13705347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54079976A Expired JPS6032267B2 (en) 1979-06-25 1979-06-25 Control signal detection method in audio playback device

Country Status (1)

Country Link
JP (1) JPS6032267B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0614052U (en) * 1992-07-31 1994-02-22 株式会社吉野工業所 Pill container

Also Published As

Publication number Publication date
JPS6032267B2 (en) 1985-07-26

Similar Documents

Publication Publication Date Title
JPS57150285A (en) Magnetic recording system of sound signal and recording and reproducing system
JPS5270802A (en) Aural signal recording and reproducing system
JPS54136806A (en) Recording medium for reproduction and reproducer utilizing this recording medium
JPS56145529A (en) Signal recording and reproducing system
JPS567252A (en) Control signal detecting system in sound reproducing device
JPS6489083A (en) Data reproducing device
JPS53111706A (en) Recording and reproducing system for audio signals
JPS5321908A (en) Phase control circuit for video tape recorder
JPS5384505A (en) Information signal superposing system for audio signal
JPS5477116A (en) Data recording apparatus
JPS5483410A (en) Pcm recorder-reproducer
JPS5528547A (en) Magnetic recorder/reproducer
JPS5552567A (en) Automatic music selector of tape recorder
JPS5755570A (en) Tracking control circuit of rotary information recording medium reproducer
JPS5433009A (en) Tape recorder
JPS57198581A (en) Tracking control system for reproducing device of information recording medium disc
JPS53125816A (en) Recording system for information recorded medium disc
JPS53116126A (en) Magnetic recording-reproducing system
JPS5271215A (en) Playback method
JPS5296520A (en) Signal multiple recording system
JPS5792410A (en) Pcm recorder and reproducer
JPS5593503A (en) Recording and reproducing system
JPS5644171A (en) Pcm recording and reproducing device
JPS5580861A (en) Information recording carrier
JPS55113108A (en) Magnetic recording and reproducing circuit