JPS557756A - Projector - Google Patents

Projector

Info

Publication number
JPS557756A
JPS557756A JP8056878A JP8056878A JPS557756A JP S557756 A JPS557756 A JP S557756A JP 8056878 A JP8056878 A JP 8056878A JP 8056878 A JP8056878 A JP 8056878A JP S557756 A JPS557756 A JP S557756A
Authority
JP
Japan
Prior art keywords
sound
circuit
moment
alarm
frame feeding
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
JP8056878A
Other languages
Japanese (ja)
Inventor
Miki Honma
Norio Tateshimo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8056878A priority Critical patent/JPS557756A/en
Publication of JPS557756A publication Critical patent/JPS557756A/en
Pending legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)

Abstract

PURPOSE: To predict screen transfer easily and accurately without being influenced by fluctuations of frame feeding speed of projector, by performing sound editing by means of the number of actual frames and alarm sound controlled by the pulses corresponding to the frame feeding.
CONSTITUTION: The constitution includes a means 3 to pick up pulses corresponding to the frame feeding of the film, a circuit 4 to count the pulses picked up by said means 3, a numerical specifying circuit 5 to specify the number of frames in order to change the sound, a circuit 6 to compare the specified value with the count value, and a circuit 7 to issue an alarm signal from the moment of coincidence of the comparison. This circuit 7 transmits plural intermittent alarm signals before the moment of sound transfer. The editor, hearing the first, second, and third alarm sound with a receiver 8, can predict the starting moment of the fourth alarm sound, so that the sound transfer and editing may be accomplished at such moment.
COPYRIGHT: (C)1980,JPO&Japio
JP8056878A 1978-07-04 1978-07-04 Projector Pending JPS557756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8056878A JPS557756A (en) 1978-07-04 1978-07-04 Projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8056878A JPS557756A (en) 1978-07-04 1978-07-04 Projector

Publications (1)

Publication Number Publication Date
JPS557756A true JPS557756A (en) 1980-01-19

Family

ID=13721932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8056878A Pending JPS557756A (en) 1978-07-04 1978-07-04 Projector

Country Status (1)

Country Link
JP (1) JPS557756A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157619A (en) * 1978-05-30 1979-12-12 Meisei Chemical Works Ltd Speaker vibrating plate and method of fabricating same
US4410768A (en) * 1980-07-23 1983-10-18 Nippon Gakki Seizo Kabushiki Kaisha Electro-acoustic transducer
JPS62117899U (en) * 1986-01-16 1987-07-27
CN1080724C (en) * 1995-08-31 2002-03-13 住友化学工业株式会社 Transition metal complexes, catalyst for olefin polymerization, and process for producing olefin polymers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157619A (en) * 1978-05-30 1979-12-12 Meisei Chemical Works Ltd Speaker vibrating plate and method of fabricating same
US4410768A (en) * 1980-07-23 1983-10-18 Nippon Gakki Seizo Kabushiki Kaisha Electro-acoustic transducer
JPS62117899U (en) * 1986-01-16 1987-07-27
CN1080724C (en) * 1995-08-31 2002-03-13 住友化学工业株式会社 Transition metal complexes, catalyst for olefin polymerization, and process for producing olefin polymers

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