US3710034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-dimensional sonic recording and playback devices and method
Assignee: Fibra-Sonics Inc
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Filing: 1970-03-06
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Granted: 1973-01-09
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Expires: 1990-03-06
Abstract
Abstract A method and apparatus for recording sonic material so that it may be used to achieve accurately a multi-dimensional playback sonic effect highly similar to that of the original material experienced in the playing volume such as that of an auditorium, studio or theater and accomplishing this in volumes which do not necessarily duplicate the recording location. A novel enclosure which may be used as a high gain type planal microphone enclosure is disclosed as well as a system of recording/playback which incorporates delimiting the recording and playback space in such a manner that the volume of the original recording space may be duplicated by means of selectively time delaying various channels of a recording system relative to each other.
Inventors
- 👤 E Murry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:45
CPC Classifications
H; H04; H04S; H04S3/00; H04S3/006; G; G11; G11B; G11B20/00; G11B20/00992; G11B5/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
203 words
A system and apparatus for recording and playing back sound which duplicates the volume of the original recording space and wherein the volume of the original recording space differs from the volume of the playback space comprising: means for recording sound in said recording space on a plurality of recording channels each associated with discrete and different positions in said recording space and including a plurality of microphones each mounted in tri-portal, tri-planal enclosures mounted respectively in upper corners adjacent the ceiling of the recording space; means for reproducing in said playback space including a plurality of back fill-in speakers each mounted in tri-portal, tri-planal enclosures mounted respectively in upper corners adjacent the ceiling of the playback space and said microphones and speakers mounted in corresponding positions and said speakers receiving the recording channel associated with said microphone located at its corresponding position; and a plurality of time delay means respectively mounted in each recording channel between the associated microphone and speaker such that said time delay introduced in each channel is determined by the relative dimensions of said recording space and playback space and the positions of corresponding microphones and speakers so as to duplicate the nth dimensionality of the recording space.
Claim 2
Independent Claim
203 words
A system and apparatus for recording and playing back sound which duplicates the volume of the original recording space and wherein the volume of the original recording space differs from the volume of the playback space comprising: means for recording sound in said recording space on a plurality of recording channels each associated with discrete and different positions in said recording space and including a plurality of microphones each mounted in tri-portal, tri-planal enclosures mounted respectively in upper corners adjacent the ceiling of the recording space; means for reproducing in said playback space including a plurality of back fill-in speakers each mounted in tri-portal, tri-planal enclosures mounted respectively in upper corners adjacent the ceiling of the playback space and said microphones and speakers mounted in corresponding positions and said speakers receiving the recording channel associated with said microphone located at its corresponding position; and a plurality of time delay means respectively mounted in each recording channel between the associated microphone and speaker such that said time delay introduced in each channel is determined by the relative dimensions of said recording space and playback space and the positions of corresponding microphones and speakers so as to duplicate the nth dimensionality of the recording space.
Claim 3
Dependent Claim
37 words
A system and apparatus according to claim 1, wherein said means for recording comprises four microphones and said sound reproducing means comprises four speakers respectively mounted in the upper corners of the recording space and playback space.
Claim 4
Dependent Claim
25 words
A system and apparatus according to claim 2 wherein said means for recording includes a phonographic recording means formed with a plurality of recording channels.
Claim 5
Dependent Claim
29 words
A system and apparatus according to claim 3 wherein said phonographic recording means is a disc with two separate recording grooves each of which contain two channels of information.
Claim 6
Dependent Claim
42 words
A system and apparatus according to claim 4 wherein said means for reproducing includes a plurality of styluses receivable in said separate recording grooves to pick up the various channels of information and means for adjusting said styluses relative to each other.
Claim 7
Dependent Claim
29 words
A system and apparatus according to claim 2 wherein said means for recording comprises a magnetic recorder with a plurality of recording heads for recording said different recording channels.
Claim 8
Dependent Claim
50 words
A system and apparatus according to claim 6 wherein said magnetic recorder is a magnetic tape device and said sound reproducing means is a magnetic tape device with a plurality of playback heads and said plurality of time delay means comprises means for adjusting the positions of said playback heads.
Claim 9
Dependent Claim
68 words
A system and apparatus according to claim 6 wherein said magnetic recorder is A flat magnetic disc device with a plurality of recording heads for recording different recording channels and said sound reproducing means receives said flat magnetic disc and has a plurality of playback heads and said plurality of time delay means comprises means for adjusting the angular positions of said playback heads relative to said disc.
Claim 10
Dependent Claim
61 words
A system and apparatus according to claim 6 wherein said magnetic recorder is a magnetic drum device with a plurality of recording heads for recording different recording channels and said sound reproducing means receives said drum and has a plurality of playback heads and said time delay means comprises means for adjusting the positions of said playback heads about said drum.
Claim 11
Dependent Claim
31 words
A system and apparatus according to claim 9 comprising a plurality of arms upon which said playback heads are mounted and means for adjusting and holding said arms in various positions.
References Cited (Backward Citations)
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |