Title:
DIGITAL SOUND SIGNAL REPRODUCING APPARATUS FOR FILM PROJECTOR
Document Type and Number:
WIPO Patent Application WO/1997/048013
Kind Code:
A1
Abstract:
A digital sound signal reproducing apparatus (10) which has a guide sprocket (11) around which an image film (1) is made to move, a guide roller (14) and a sound drum (13). The position of the sound drum (13) is changed and the number of members such as guide rollers is reduced. An optical reader (20) which reads and reproduces digital sound signals which are recorded on the digital sound signal recording part (5) of the image film (1) is provided on the sound drum (13). The guide sprocket (11) is provided near an image film supply entrance (10A) through which the image film (1) is supplied. The guide roller (14) is provided near an image film sending exit (10B) through which the image film (1) is sent out. Further, an image film transport regulator (30) which applies a transport load to the image film (1) supplied to the optical reader (20) is provided on the guide sprocket (11).
Inventors:
SAITO ETSURO (JP)
Application Number:
PCT/JP1997/002055
Publication Date:
December 18, 1997
Filing Date:
June 13, 1997
Export Citation:
Assignee:
SONY CINEMA PRODUCTS CORP (US)
SAITO ETSURO (JP)
SAITO ETSURO (JP)
International Classes:
G03B31/00; G03B31/02; G11B15/60; G11B15/62; (IPC1-7): G03B31/00
Foreign References:
| JPH07230130A | 1995-08-29 |
Other References:
See also references of EP 0844513A4
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