JPS5749943A - Sound projector - Google Patents

Sound projector

Info

Publication number
JPS5749943A
JPS5749943A JP12529280A JP12529280A JPS5749943A JP S5749943 A JPS5749943 A JP S5749943A JP 12529280 A JP12529280 A JP 12529280A JP 12529280 A JP12529280 A JP 12529280A JP S5749943 A JPS5749943 A JP S5749943A
Authority
JP
Japan
Prior art keywords
recording
track
recorded
double
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
JP12529280A
Other languages
Japanese (ja)
Inventor
Motohiro Rikukawa
Norio Ito
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.)
SANWA DENKI KK
Original Assignee
SANWA DENKI KK
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 SANWA DENKI KK filed Critical SANWA DENKI KK
Priority to JP12529280A priority Critical patent/JPS5749943A/en
Publication of JPS5749943A publication Critical patent/JPS5749943A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film

Abstract

PURPOSE:To program either double recording or normal recording and double recording with simple constitution and to perform automatic program recording, by performing the double recording on the 1st track when a control signal for the double recording is detected. CONSTITUTION:For double recording, a 3kHz memory signal is recorded on the 2nd track to perform programming. When an operation button is pushed at a position where double recording is to be performed over a lock at a projected screen, a signal from a 400Hz oscillator 71 is recorded by a recording and reproducing head 30'. Then, the 1st track is placed in a recording state. The signal recorded on the 2nd track is detected by the head 40' and inputted via a BPF72 to Schmitt circuits 65 and 42, and relay circuits 67 and 44 operate to drive a tape recorder. Simultaneously, a reproduced signal from a recording and reproducing head 54 is applied to a head 30 through amplifiers 35, and 60 and 61' to be recorded on the 1st track, thus performing complete double recording.
JP12529280A 1980-09-11 1980-09-11 Sound projector Pending JPS5749943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12529280A JPS5749943A (en) 1980-09-11 1980-09-11 Sound projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12529280A JPS5749943A (en) 1980-09-11 1980-09-11 Sound projector

Publications (1)

Publication Number Publication Date
JPS5749943A true JPS5749943A (en) 1982-03-24

Family

ID=14906463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12529280A Pending JPS5749943A (en) 1980-09-11 1980-09-11 Sound projector

Country Status (1)

Country Link
JP (1) JPS5749943A (en)

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