US3751150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio-visual apparatus
Assignee: PRESCRIPTION LEARNING Corp 2860 OLD ROCHESTER ROAD PO BOX 2377 SPRINGFIELD ILLINOIS 62705
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Filing: 1966-06-21
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Granted: 1973-08-07
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Expires: 1986-06-21
Abstract
Abstract An audio-visual system utilizing an integrated audio and visual program unit, the latter including a record disc and a disc carrying projectable transparencies. The disc carrying images is either formed with or connected to a cam which is adapted to cooperate with the cam follower controlling the position of the audio pick-up. For each position of the image disc, there is a unique position of the audio pick-up relative to the record disc thereby assuring precise synchronization.
Inventors
- 👤 R Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:20
CPC Classifications
G; G09; G09F; G09F27/00; G03; G03B; G03B31/00; G03B31/02; G03B31/06; G09B; G09B5/00; G09B5/06; G09B5/067; Y; Y10; Y10S; Y10S40/00; Y10S40/906
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
235 words
Audio -visual apparatus comprising support means for supporting an integrated program unit, said program unit having a visual component including a plurality of images arranged in a predetermined pattern and an audio component including a disctype phonograph record having a plurality of individual messages recorded thereon, said recorded messeages corresponding to selected images and being arranged in spaced relation; means for driving said phonograph record about its central axis; indexing mechanism for selectively positioning said visual component to bring, in sequential fashion, individual images into view; an audio reproduction system including an aUdio pick-up and associated stylus adapted to be brought into operative relation with selected portions of said phonograph record and means for aurally reproducing the recorded messages corresponding to selected, individual images; and audio-visual synchronization means operated in response to movement of said visual component to effect controlled relative movement between said audio pick-up and said phonograph record to bring said audio pick-up into positively positioned, operative relation with a recorded message on said phonograph record corresponding to the image being viewed, said synchronization means including positioning means responsive to the position of said visual component mechanically linking said visual component with one of said audio pick-up and said phonograph record, said positioning means being adapted to provide a positive, irreversible, incremental relative movement between said phonograph record and said audio pick-up in response to a corresponding incremental movement of said visual component.
Claim 2
Dependent Claim
235 words
Audio -visual apparatus comprising support means for supporting an integrated program unit, said program unit having a visual component including a plurality of images arranged in a predetermined pattern and an audio component including a disctype phonograph record having a plurality of individual messages recorded thereon, said recorded messeages corresponding to selected images and being arranged in spaced relation; means for driving said phonograph record about its central axis; indexing mechanism for selectively positioning said visual component to bring, in sequential fashion, individual images into view; an audio reproduction system including an aUdio pick-up and associated stylus adapted to be brought into operative relation with selected portions of said phonograph record and means for aurally reproducing the recorded messages corresponding to selected, individual images; and audio-visual synchronization means operated in response to movement of said visual component to effect controlled relative movement between said audio pick-up and said phonograph record to bring said audio pick-up into positively positioned, operative relation with a recorded message on said phonograph record corresponding to the image being viewed, said synchronization means including positioning means responsive to the position of said visual component mechanically linking said visual component with one of said audio pick-up and said phonograph record, said positioning means being adapted to provide a positive, irreversible, incremental relative movement between said phonograph record and said audio pick-up in response to a corresponding incremental movement of said visual component.
Claim 3
Dependent Claim
27 words
Apparatus as defined in claim 1 wherein said audio pick-up is stationary, and said support means is mounted for movement toward and away from said audio pick-up.
Claim 4
Dependent Claim
54 words
Apparatus as defined in claim 2 including a cam associated with said support means; and means operatively interconnecting said cam to said visual component, whereby movement of said visual component to effect a change in the image being viewed will produce a corresponding movement of said support means relative to said stationary audio pick-up.
Claim 5
Dependent Claim
30 words
Apparatus as defined in claim 1 wherein the axis of said support means is fixed, and said audio pick-up is mounted for movement toward and away from the said axis.
Claim 6
Dependent Claim
39 words
Apparatus as defined in claim 4 wherein said program unit includes a cam which is movable concurrently with said visual component, said synchronizing means including a cam follower engaging said cam and operatively connected to said movable audio pick-up.
Claim 7
Dependent Claim
97 words
Apparatus as defined in claim 1 wherein said visual component comprises a first disc supporting said images in the form of through-projection transparencies, said audio component comprising a flexible second disc with said recorded messages arranged in a generally concentric array; means for securing said first and second discs in closely spaced, parallel relation for independent rotation about a common axis; an image projection system including a light source, an optical system, and means for separating said flexible second disc from said first disc to provide a path for light from said light source through said transparencies.
Claim 8
Dependent Claim
82 words
Apparatus as defined in claim 1 wherein said visual component comprises a first disc supporting said images in the form of through-projection transparencies, said transparencies lying in the same plane as said disc and being circumferentially spaced around the marginal edge thereof; and wherein said audio component comprises a second disc in the form of an audio record which is substantially coextensive with and closely spaced to the central portion of said first disc in the region radially iwnard from said transparencies.
Claim 9
Dependent Claim
150 words
Apparatus as defined in claim 1 wherein said program unit comprises first and second discs, said first disc having a marginal edge provided with means for supporting said images in the form of light projectable transparencies, said transparencies being spaced circumferentially around said marginal edge in non-coplanar relation with respect to said disc, said second disc having said recorded messages arranged in a radially spaced, generally concentric array, said second disc overlying said first disc and being secured thereto in closely spaced relation for independent relative rotation about a common axis; means defining a cam surface operatively connected to said first disc; a cantilevered arm carrying said audio pick-up, said arm being pivotally supported; a pivotal support and a cam follower connected to said arm and engaging said cam surface whereby rotative movemEnt of said first disc produces a corresponding pivotal movement of said arm to re-position said audio pick-up.
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |