JPH0792580A - External synchronizing projecting film and projecting device therefor - Google Patents

Abstract

PURPOSE:To provide a projecting device whose tone quality is excellent as well as a CD, which is constituted so that the number of tones for producing a stereophonic sound is not limited and whose tone quality is not lowered even when the device is used over a long term. CONSTITUTION:This device is constituted of a projector 10 using film 11 where ordinary monaural sound optical recording is performed to either of two tracks 1a and 5a for sound optical recording and time code optical recording corresponding to every frame 12 is performed to the other, a synchronizer 6a inputting the electric signal of a 2nd track 5a for time code optical recording being the output of the projector 10, a CD multistereophonic amplifier 7a inputting the output of the synchronizer 6a, plural 2nd loudspeaker groups 9a to 9d respectively inputting the output of the amplifier 7a through 2nd wirings 8a to 8d, a monaural amplifier 2a inputting the electric signal of a 1st track 1a for monaural sound recording being the output of the projector 10, and a 1st loudspeaker 4a inputting the output of the amplifier 2a through a 1st wiring 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of motion pictures using films with two tracks for optical recording.

[0002]

2. Description of the Related Art A film is provided with two tracks for optical recording, and three-dimensional voices corresponding to the patterns are recorded on each track.

However, since only the analog recording can be performed with the two tracks, the sound quality is inferior to that of a digital CD (compact disc), and the sound quality deteriorates according to the number of times of use.

[0004]

[PROBLEMS TO BE SOLVED BY THE INVENTION] [PROBLEMS TO BE SOLVED BY THE INVENTION] It is an object of the present invention to provide a projection apparatus which is as good in sound quality as a CD, is not limited by the number of sounds that generate stereophonic sound, and does not deteriorate in sound quality even when used for a long period of time. Is.

[0005]

A means for solving the problems will be described with reference to FIGS. The present invention uses the film 11 in which one of the two audio optical recording tracks 1a and 5a of the projection film 11 is subjected to normal monaural audio optical recording and the other is subjected to time code optical recording corresponding to each of the patterns 12. Projector 10, second output for time code optical recording of projector 10
Synchronizer 6 for inputting the electric signal of the truck 5a
a, a plurality of second loudspeaker groups 9a for inputting the outputs of the CD multi-stereo amplifier 7a and the CD multi-stereo amplifier 7a for inputting the output of the synchronizer 6a, respectively, via the second wirings 8a, 8b, 8c, 8d, 9b, 9c, 9
d, a monaural amplifier 2a for inputting the electric signal of the first track 1a for recording monaural audio output from the projector 10.
The first loudspeaker 4a inputs the output of the monaural amplifier 2a via the first wiring 3a.

[0006]

When the CD multi-stereo amplifier 7a can be used, the monaural amplifier 2a is not used. The signal read from the second track 5a for time code optical recording from the projector 10 is transmitted to the second loudspeakers 9a to 9d via the synchronizer 6a, the CD multi-stereo amplifier 7a, and the second wirings 8a to 8d. The sound corresponding to the image of is output.

When the CD multi-stereo amplifier 7a cannot be used, the projector 10 is the first for monaural audio optical recording.
The signal read from the track 1a is used as a monaural amplifier 2
a, transmitted to the first loudspeaker 4a via the first wiring 3a,
Produces sound according to the image of Qing 12.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, 11 is a film and 12 is a film.
Is an image frame, 13 is a frame, 1a is a first track for monaural audio optical recording, and 5a is a second track for time code optical recording.

In FIG. 3, 10 is a projector, 2a is a monaural amplifier, 3a is a first wiring, and 4a is a first loudspeaker. 6a is a synchronizer, 7a is a multi-stereo amplifier, 8a to 8d are second wirings, 9a to 9d are second loudspeakers, 14 is a spectator seat, 15 is a stage, and 16 is a projection screen.

Movies are designed to be projected without breaks. At that time, as shown in FIG. 4, two projectors 1
0 and 10 are arranged and a switching device 17 is provided.

[0011]

According to the present invention, a projection apparatus can be obtained in which the sound quality is as good as that of a CD, the number of sounds that generate a three-dimensional sound is not limited, and the sound quality does not deteriorate even when used for a long time.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a film according to the present invention.

FIG. 2 is a front view showing another example of the film according to the present invention.

FIG. 3 is a plan view of an apparatus according to the present invention.

FIG. 4 is a partially modified plan view of the device of FIG.

[Explanation of symbols]

 1a First track for monaural audio optical recording 2a Monaural amplifier 3a First wiring 4a First loudspeaker 5a Second track for time code optical recording 6a Synchronizer 7a CD multi-stereo amplifier 8a, 8b, 8c, 8d Second wiring 9a, 9b, 9c, 9d Second loudspeaker 10, 10e, 10f Projector 11 Film 12 Q 13 13th frame 14 Spectators 15 Stage 16 Projection screen 17 Switching device

Claims (2)

[Claims] 1. An ordinary monaural audio optical recording is applied to one of two audio optical recording tracks (1a, 5a) of a projection film (11), and the other time code optical recording corresponding to each pattern (12). An external synchronous projection film characterized by being applied. 2. An ordinary monaural audio optical recording is applied to one of the two audio optical recording tracks (1a, 5a) of the projection film (11), and the time code optical recording corresponding to each pattern (12) is applied to the other. Of the projector (10) using the film (11) on which the film has been applied, the synchronizer (6a) for inputting the electric signal of the second track (5a) for time code optical recording of the output of the projector (10), and the synchronizer (6a) A CD multi-stereo amplifier (7a) for inputting the output, and a plurality of second loudspeaker groups (9a) for inputting the outputs of the CD multi-stereo amplifier (7a) through second wirings (8a, 8b, 8c, 8d), respectively. , 9b, 9c, 9d), a monaural amplifier (2a) for inputting the electric signal of the first track (1a) for recording monaural audio output from the projector (10), a monaural amplifier First loudspeaker for inputting the output of the flop (2a) via a first wire (3a) (4a), become more external synchronization projecting device.