US5508761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reproducing a digital pattern from motion picture film, and the motion picture film
Assignee: Sony Corp
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Filing: 1994-12-06
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Granted: 1996-04-16
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Expires: 2014-12-06
Abstract
Abstract A motion picture film is provided on which a digital sound track for audio data is formed along the film running direction. Data tracks are disposed in the digital sound track along a direction normal to the film running direction and extend in the film running direction. A data pattern having a block of audio data is recorded in the data tracks, along with tracking patterns representing each data track. Each of the tracking patterns is recorded at one side of the data track along the film running direction with an offset in the film running direction of one half the width of a data track from the center of that data track.
Inventors
- 👤 Etsuro Saito
- 👤 Katsuichi Tachi
- 👤 Kiyoshi Inatome
- 👤 Hideki Ando
- 👤 Tetsuro Makise
- 👤 Yoshiyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:40
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/10527; G03; G03B; G03B31/00; G03B31/02; G11B20/12; G11B20/1261; G11B7/00; G11B7/002; G11B7/003; G11B7/0032; G11B7/007; G11B7/08; G11B7/09; G11B7/0938
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
122 words
A motion picture film on which a digital sound track for audio data is formed along a film running direction comprising: data tracks disposed in the digital sound track along a direction normal to the film running direction and extending in the film running direction; a data pattern comprising a block of audio data recorded in each of said data tracks; a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track extending in the film running direction; and an azimuth check pattern repeatedly recorded within said data pattern, said azimuth check pattern representing an azimuth angle of each of said data tracks for each block of audio data.
Claim 2
Dependent Claim
122 words
A motion picture film on which a digital sound track for audio data is formed along a film running direction comprising: data tracks disposed in the digital sound track along a direction normal to the film running direction and extending in the film running direction; a data pattern comprising a block of audio data recorded in each of said data tracks; a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track extending in the film running direction; and an azimuth check pattern repeatedly recorded within said data pattern, said azimuth check pattern representing an azimuth angle of each of said data tracks for each block of audio data.
Claim 3
Dependent Claim
24 words
A motion picture film according to claim 1, wherein said plurality of tracking patterns are recorded near an edge of said motion picture film.
Claim 4
Dependent Claim
39 words
A motion picture film according to claim 1, in which said plurality of tracking patterns are offset along the film running direction by one-half track width of one of said data tracks from a center of said data track.
Claim 5
Independent Claim
197 words
An apparatus for reproducing sound data from a movie film, said movie film including a digital sound track and having data tracks disposed within said digital sound track along a direction normal to the film running direction and extending in the film running direction, a data pattern comprising a block of audio data recorded in each of said data tracks, a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track extending in the film running direction, and an azimuth check pattern repeatedly recorded within said data pattern, such azimuth check pattern representing an azimuth angle of each of said data tracks for each block of audio data, said apparatus comprising: means for reading the digital sound track; means for detecting a tracking error based on said plurality of tracking patterns supplied from said reading means; means for repeatedly detecting said azimuth angle for said block of audio data based on said azimuth check pattern supplied from said reading means; and means for compensating for said tracking error in response to the detected tracking error and said means for repeatedly detecting said azimuth angle.
Claim 6
Independent Claim
197 words
An apparatus for reproducing sound data from a movie film, said movie film including a digital sound track and having data tracks disposed within said digital sound track along a direction normal to the film running direction and extending in the film running direction, a data pattern comprising a block of audio data recorded in each of said data tracks, a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track extending in the film running direction, and an azimuth check pattern repeatedly recorded within said data pattern, such azimuth check pattern representing an azimuth angle of each of said data tracks for each block of audio data, said apparatus comprising: means for reading the digital sound track; means for detecting a tracking error based on said plurality of tracking patterns supplied from said reading means; means for repeatedly detecting said azimuth angle for said block of audio data based on said azimuth check pattern supplied from said reading means; and means for compensating for said tracking error in response to the detected tracking error and said means for repeatedly detecting said azimuth angle.
Claim 7
Dependent Claim
36 words
The apparatus according to claim 4, wherein said means for reading said digital sound track is operable to scan said plurality of tracking patterns, and said tracking patterns extend along an edge of said movie film.
Claim 8
Dependent Claim
56 words
The apparatus according to claim 4, wherein said means for reading said digital sound track is operable to scan said plurality of tracking patterns, and said plurality of tracking patterns are offset along the film running direction by one-half track width of one of said data tracks from a center of each of said data tracks.
Claim 9
Dependent Claim
129 words
A motion picture film on which a digital sound track for audio data is formed along a film running direction comprising: data tracks having a width disposed in the digital sound track along a direction normal to the film running direction and said data tracks extending in the film running direction; a data pattern comprising a block of audio data recorded in each of said data tracks; and a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track along the film running direction, and said plurality of tracking patterns being offset along the film running direction by one-half the width of one of said data tracks from a center of each of said data tracks.
Claim 10
Dependent Claim
129 words
A motion picture film on which a digital sound track for audio data is formed along a film running direction comprising: data tracks having a width disposed in the digital sound track along a direction normal to the film running direction and said data tracks extending in the film running direction; a data pattern comprising a block of audio data recorded in each of said data tracks; and a plurality of tracking patterns representing each of said data tracks, each said tracking pattern being recorded at one side of the data track along the film running direction, and said plurality of tracking patterns being offset along the film running direction by one-half the width of one of said data tracks from a center of each of said data tracks.
Claim 11
Independent Claim
172 words
An apparatus for reproducing sound data from a movie film, said movie film including a digital sound track and having data tracks exhibiting a width disposed within said digital sound track along a direction normal to the film running direction and extending in the film running direction, a data pattern comprising a block of audio data recorded in each of said data tracks, a plurality of tracking patterns representing each of said data tracks, each of said plurality of tracking patterns being recorded at one side of the data track extending in the film running direction, wherein said plurality of tracking patterns are offset along the film running direction by one half the width of one of said data tracks from a center of each of said data tracks, said apparatus comprising: means for reading the digital sound track; means for detecting a tracking error based on said plurality of tracking patterns supplied from said reading means; and means for compensating for said tracking error in response to the detected tracking error.
Claim 12
Independent Claim
172 words
An apparatus for reproducing sound data from a movie film, said movie film including a digital sound track and having data tracks exhibiting a width disposed within said digital sound track along a direction normal to the film running direction and extending in the film running direction, a data pattern comprising a block of audio data recorded in each of said data tracks, a plurality of tracking patterns representing each of said data tracks, each of said plurality of tracking patterns being recorded at one side of the data track extending in the film running direction, wherein said plurality of tracking patterns are offset along the film running direction by one half the width of one of said data tracks from a center of each of said data tracks, said apparatus comprising: means for reading the digital sound track; means for detecting a tracking error based on said plurality of tracking patterns supplied from said reading means; and means for compensating for said tracking error in response to the detected tracking error.
Claim 13
Dependent Claim
57 words
The apparatus according to claim 8, wherein said means for reading the digital sound track further comprises: detecting means for detecting a reproduced level of said plurality of tracking patterns; and means for adjusting the reproduced level of said data pattern based on the reproduced level of said plurality of tracking patterns detected by said detecting means.
Claim 14
Dependent Claim
72 words
The apparatus according to claim 8, wherein said means for reading the digital sound track further comprises: detecting means for detecting a reproduced level of said plurality of tracking patterns; means for determining a threshold value based on the reproduced level of said plurality of tracking patterns detected by said detecting means; and means for converting a reproduced data pattern into a binary signal as a function of the determined threshold value.
References Cited (Backward Citations)
US4306781A
Cited
US4461552A
Cited
US4491399A
Cited
US4600280A
Cited
US4893921A
Cited
US5450248A
Cited
US5327182A
Cited
US5453802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |