US4018448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record for the artificial reproduction of sounds
Assignee: Dynell Electronics Corp
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Filing: 1975-05-14
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Granted: 1977-04-19
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Expires: 1995-05-14
Abstract
Abstract There is disclosed a rotatable record for use in the artificial reproduction of sounds, such as musical notes, tones, chords, words, voice phonemes or the like, in which there is at least one endless data track on at least part of which there is recorded one or more sounds to be reproduced and, associated spatially with the sound track, is an endless track on which is recorded information indicating the locations of the component parts of the recorded sound.
Inventors
- 👤 Paul Di Matteo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/03; G10H3/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A rotatable record for storing recorded sounds for substantially instantaneous retrieval comprising record means having a plurality of parallel spaced apart endless data tracks, each adapted to present itself continuously to pickup means in a recurring sequence with respect to a beginning point, and each track having means defining at least one sound recorded along its length, each recorded sound having a predetermined beginning point and a predetermined ending point, the amplitude of the sound decaying from the beginning point to the ending point, and an address track on the record with means common to all of the data tracks to define the points of beginning of each sound and all subsequent points throughout the lengths of the data tracks, whereby the sounds of the respective tracks can be accessed at points within a predetermined time interval from the beginning to afford a reproduction which closely approximates the original sound.
Claim 2
Dependent Claim
150 words
A rotatable record for storing recorded sounds for substantially instantaneous retrieval comprising record means having a plurality of parallel spaced apart endless data tracks, each adapted to present itself continuously to pickup means in a recurring sequence with respect to a beginning point, and each track having means defining at least one sound recorded along its length, each recorded sound having a predetermined beginning point and a predetermined ending point, the amplitude of the sound decaying from the beginning point to the ending point, and an address track on the record with means common to all of the data tracks to define the points of beginning of each sound and all subsequent points throughout the lengths of the data tracks, whereby the sounds of the respective tracks can be accessed at points within a predetermined time interval from the beginning to afford a reproduction which closely approximates the original sound.
Claim 3
Dependent Claim
26 words
A record as set forth in claim 1, said record comprising a disc, said plurality of data tracks and address track comprising circular concentric non-intersecting tracks.
References Cited (Backward Citations)
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US3212074A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |