US3843241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple sound system for narrow-width motion picture systems
Assignee: SCHILDER EMILE
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Filing: 1971-08-20
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Granted: 1974-10-22
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Expires: 1991-08-20
Abstract
Abstract Narrow-width motion picture systems are provided with a multiple-output sound capability by disposing on the film a plurality of magnetic recording stripes, each capable of recording an independent sound track. The projecting equipment is provided with a specially designed adapter, compatible with conventional equipment, for playing back sound tracks recorded on these stripes, and a plurality of speaker means are provided, each speaker having an independent switching arrangement for switching among the plurality of sound tracks.
Inventors
- 👤 R Swerdlow
- 👤 E Schilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34; G03; G03B; G03B31/00; G03B31/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
A sound reproduction system for a narrow-width motion picture system, comprising: a. narrow-width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrowwidth film; d. an adapter for said projector for permitting the playback of sound tracks recorded on said recording means, said adapter comprising a magnetic pick-up including a plurality of separate pickup heads disposed in a position adjacent the return film path, first idler means for tensioning said film, spring means for spring biasing said idler, second idler means for guiding said film, drum means for maintaining said film in alignment with said magnetic pickup head, said second idler means and said drum means cooperating together to press said film against said magnetic pickup head, and third idler means for directing said film back along the path defined by said sound drum; e. a plurality of buss means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for coupling one of said speaker means to a desired buss means for playing a selected sound track.
Claim 2
Dependent Claim
222 words
A sound reproduction system for a narrow-width motion picture system, comprising: a. narrow-width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrowwidth film; d. an adapter for said projector for permitting the playback of sound tracks recorded on said recording means, said adapter comprising a magnetic pick-up including a plurality of separate pickup heads disposed in a position adjacent the return film path, first idler means for tensioning said film, spring means for spring biasing said idler, second idler means for guiding said film, drum means for maintaining said film in alignment with said magnetic pickup head, said second idler means and said drum means cooperating together to press said film against said magnetic pickup head, and third idler means for directing said film back along the path defined by said sound drum; e. a plurality of buss means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for coupling one of said speaker means to a desired buss means for playing a selected sound track.
Claim 3
Dependent Claim
191 words
A sound reproduction system for a narrow-width motion picture system, comprising: a. narrow-width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrow-width film; d. an adapter for said projector for permitting the playback of sound tracks recorded on said recording means, said adapter comprising a magnetic pick-up including a plurality of separate pickup heads disposed in a position adjacent the return film path, drum means for maintaining said film in alignment with said magnetic pickup head, means for pressing said film against said magnetic pickup head, and idler means for directing said film back along the path defined by said sound drum; e. a plurality of buss means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for controlling one of said speaker means to a desired buss means for playing a selected sound track.
Claim 4
Dependent Claim
191 words
A sound reproduction system for a narrow-width motion picture system, comprising: a. narrow-width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrow-width film; d. an adapter for said projector for permitting the playback of sound tracks recorded on said recording means, said adapter comprising a magnetic pick-up including a plurality of separate pickup heads disposed in a position adjacent the return film path, drum means for maintaining said film in alignment with said magnetic pickup head, means for pressing said film against said magnetic pickup head, and idler means for directing said film back along the path defined by said sound drum; e. a plurality of buss means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for controlling one of said speaker means to a desired buss means for playing a selected sound track.
Claim 5
Dependent Claim
180 words
A sound reproduction for a narrow-width motion picture system, comprising: a. narrow width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrow-width film; d. an adaptor for said projector for permitting the play-back of sound tracks rEcorded on said recording means said adaptor comprising a magnetic pick-up including a plurality of separate pickup heads fixedly disposed adjacent an auxiliary rotatable drum by mounting clamp means, the heads of said auxiliary drum, guide plates and guide plate shifting means for adjusting the adapted projector between the conventional path and the path through the adaptor; e. a plurality of means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for coupling one of said speaker means to a desired bus for playing a selected sound track.
Claim 6
Dependent Claim
180 words
A sound reproduction for a narrow-width motion picture system, comprising: a. narrow width motion picture film; b. more than one continuous recording means disposed on said narrow-width motion picture film for recording more than one independent sound track; c. a motion picture film projector for projecting said narrow-width film; d. an adaptor for said projector for permitting the play-back of sound tracks rEcorded on said recording means said adaptor comprising a magnetic pick-up including a plurality of separate pickup heads fixedly disposed adjacent an auxiliary rotatable drum by mounting clamp means, the heads of said auxiliary drum, guide plates and guide plate shifting means for adjusting the adapted projector between the conventional path and the path through the adaptor; e. a plurality of means each for transmitting the output of one of said pickup heads and each coupled to said one of said pickup heads; f. more than one speaker means; and g. more than one connector means each of said connector means for coupling one of said speaker means to a desired bus for playing a selected sound track.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |