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7303282 |
Multimedia display device
A multimedia display device includes a docking station having speakers and a media drive, wherein the docking station is configured to structurally and communicatively couple an image projection...
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7144114 |
Systems and methods for displaying simulated images
The invention provides systems and methods for generating a visual image that is made to appear to be situated behind an architectural structure, such as a wall of a building, and is viewed through...
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7097307 |
Systems and methods for displaying simulated images
The invention provides systems and methods for generating a visual image that is made to appear to be situated behind an architectural structure, such as a wall of a building, and is viewed through...
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6962417 |
Keystone correction system and method
The invention relates to a keystone correction system and method. The system includes a projector for projecting an image on a projection surface and a platform to allow a user to vertically rotate...
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6550922 |
Audio-video recording of overhead projector based presentations
The present invention relates to the audio-video recording of overhead projector based presentations. The apparatus ( 1 ) comprises an audio microphone ( 29 ), a logging element ( 20, 21, 27 ) for...
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5812099 |
Portable audio-visual virtual-reality system
An audio-visual, virtual-reality system making it possible for a user to see, during successive time periods, a still image of a particular subject while listening to a program relating to that...
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5424790 |
Projection apparatus
A projection apparatus comprising a holding section for holding a film cassette having an exposed magnetic-zoned film therein, motors for automatically drawing out the leader portion of the film...
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5266980 |
Synchronized audio visual story-telling toy
An audio visual story-telling toy projects pictures on a surface such as a ceiling or a wall while a story recorded on an audio cassette is played. The toy is a small, self-contained unit which...
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4884885 |
Microfilm aperture card, in particular camera card
A microfilm aperture card having a window for mounting a microfilm, and an adhesive tape which extends around the opening in the card, and covering the edges of the microfilm and the window...
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4791496 |
System for presenting audiovisual information to an audience
With an audiovisual information presentation system, pictorial image data, drawn on paper sheets in advance and to be optically projected on a screen using an optical projector, is sequentially...
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4765734 |
Digitally encoded alpha-numeric projector slide and systems for using the same
The present invention includes an information projector slide comprising a planar member having a central window for holding a photographic film image and at least one border adjacent the window. A...
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4758485 |
Slides and recording method for audiovisual slide show
An audiovisual slide show is recorded by collecting a set of slides having pictures dealing with a broad topic. A strip of laser recording material is disposed on each slide. A laser writes a data...
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4473280 |
Audio-visual cartridge and combined audio player and visual viewer
An audio-visual cartridge containing two coplanar adjacent rotatable discs, a visual disc carrying a plurality of picture transparencies mounted in a ring for successive viewing and an audio disc...
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4277152 |
Controls for synchronizing audio signals with film advancement in a projector
A synchronized audio visual system including an audio program source capable of producing a film advance signal at predetermined intervals and a projector interconnected therewith. The projector...
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4272167 |
Projector cartridge for a filmstrip and a tape cassette
A cartridge is disclosed for an audiovisual filmstrip projector. The cartridge holds a filmstrip and a standard magnetic tape cassette. Spring hooks are provided on a mounting plate of the...
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4122613 |
Operator responsive audio-visual teaching apparatus
A programmable, operator responsive, audiovisual teaching apparatus includes a rear screen projector for displaying visual information and an audio reproduction unit providing correlated...
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4067647 |
Dual film strip projector
A dual film strip projector projects images onto at least one screen from a pair of film strips, each of which is advanced in programmed timing independently of the other. The film strips are...
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4043651 |
Audio-visual device
An audio-visual reproducing device is disclosed which utilizes a program unit having a structure for producing an audio signal and carrying a plurality of visual representations. The program unit...
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4037951 |
Audio-visual cartridge and player
A film cartridge having a film to be projected, a magnetic tape with a sound signal and film feeding signals, a housing for accommodating therein the film and tape separately therein, a reflector...
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4020503 |
Still image slide with sound track control
Means for providing stationary images from slides and sound related to these images include a retainer for insertion of a slide, an endless taut magnetic tape mounted within the retainer, and...
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4010491 |
Automatically retractable tape in sound-slide means
A slide and magnetic tape retainer provides capability of insertion of a mounted transparency and has a spiral spring type tape that is self retractable, after being transported, to its original...
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3999845 |
Mechanical sound reproducing means for an audio-visual device
A tone-arm generally in the form of a unitary right-angle member has first and second arms extending at approximately 90° to each other. A needle is supported by one of the arms, the other arm...
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3999848 |
Audio-visual cartridge
A cartridge having a film handling portion and an audio tape cassette storing portion for use with an audio-visual system. The film storing portion includes a supply and take-up reel which are...
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3973842 |
Magazine for slides for the simultaneous projection of pictures and reproduction of sound
This invention relates to camera apparatus having a mechanism containing transparent slides for projection, and, with this, there is provided a mechanism for including with these slides related...
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3953118 |
Reset mechanism for an audio-visual device
An audio-visual unit includes a disc mounting a plurality of discrete image transparencies arranged in a continuous pattern for successive visual display; a record co-axially mounted on the disc...
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3942269 |
Audio-visual system including audio-visual slides
An audio-visual system for providing correlated audio and visual presentations from audio-visual slides in a sequence corresponding to a branched learning format. Upon an operator selecting a...
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3897145 |
Recording and scanning mechanism for a sound slide projector
There is disclosed a playback and recording assemblage for a sound slide projector. This assemblage includes sound slides which are coated on opposite sides of a widened frame portion with magnetic...
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3884566 |
Transparency projector having a device to allow the playback of sound recordings
An apparatus for use with transparency projectors to allow the playback of individual sound recordings each corresponding to a transparency, characterized in that in accordance with each...
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3883238 |
AUDIOVISUAL SLIDES AND APPARATUS
Audiovisual slides each having a projectable image and a sound and information track adjacent said image. Audiovisual projectors, accepting for audiovisual reproduction the above referred...
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3879117 |
Apparatus for the visual display of inscriptions on transparencies
Device for projecting transparencies which bear sections of magnetic tapes having recorded thereon binary digital words representative of alphanumerical characters. During projection, the binary...
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3876297 |
Slide identification
An apparatus for audio identification of a photographic transparency mounted in a slide frame, the slide frame being provided on one face with a resiliently backed strip of magnetic recording tape...
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3871758 |
AUDIO-VISUAL APPARATUS AND RECORD MEMBER THEREFORE
An audio-visual apparatus for intermittently projecting still images of transparencies such as photographs and playing back accompanying audio recordings such as messages and descriptions of the...
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3871757 |
INDEX MEANS FOR AUDIO-VISUAL DEVICE
An audio-visual device wherein a disc having stereoscopic pairs of transparencies is placed in the device for viewing of the several transparencies to the accompaniment of a related sound message...
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3868178 |
AUDIOVISUAL SYSTEM
An audiovisual record having a spiral information track and an image-disc rotationally secured thereon. An audiovisual record comprising a support plate, an image-disc rotationally secured thereon...
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3861793 |
SOUND-ON SLIDE PROJECTOR
A sound-on slide projector including a scanning device for magnetically recording or reproducing sound on a slide. The device traces a spiral locus along the magnetically coated frame of the slide...
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3857571 |
RECORD REPRODUCING METHOD
An apparatus for reproducing recorded information from a phonograph record having visual information on an upper side thereof is disclosed. The record is placed in a stationary position and is...
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3832049 |
SLIDE TRANSPARENCY PROJECTING AND SIMULTANEOUS SOUND REPRODUCING DEVICE
A slide transparency projecting and simultaneous sound reproducing device adapted to sequentially project a plurality of slide transparencies each incorporated in a tape cassette is provided, and...
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3827794 |
AUDIOVISUAL DISC PROJECTOR
An audiovisual disc projector, accepting for audiovisual reproduction audiovisual discs having a stationary spiral sound track surrounding a stationary ring of projectable images, said disc...
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3825268 |
SELECTABLE PLAY MECHANISM FOR STATIONARY RECORD
A simple toy phonograph for playing a stationary record of the type which has several interleaved spiral grooves with lead-in portions circumferentially spaced about the record. A rotatable carrier...
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3825332 |
AUDIOVISUAL APPARATUS
Audiovisual apparatus for use with an information tablet having an image record surrounded by a spiral information track, the audiovisual apparatus including a support member supporting the source,...
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3799420 |
FILMSTRIP PROJECTOR WITH SYNCHRONIZED SOUND
A filmstrip projector provided with synchronized audio accompaniment. The filmstrip is framed with respect to a projection aperture by a manually operable framing means. Once framed, the filmstrip...
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3790265 |
AUDIO-VISUAL APPARATUS
An apparatus for presenting visual information and corresponding audio information simultaneously utilizes an audio-visual slide which includes a transparency for projection and a movable endless...
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3784211 |
PHONOGRAPH FOR PLAYING STATIONARY RECORD
A phonograph which plays a selected one of several spiral grooves on a stationary record, including a drive shaft with a high helix angle thread which engages a tone arm carrier, so that when the...
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3779637 |
SLIDE ATTACHMENT WITH A SOUNDING MECHANISM
A slide attachment with a sound mechanism which includes a photographic slide film secured within an opening of a casing and an endless strip of film on which sound is recorded in a helical groove...
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3773415 |
RECORD FOR AN AUDIO-VISUAL DEVICE
A record for an audio-visual device includes a recorded-message carrier portion and a picture carrier portion immovable with respect to each other and including a plurality of interleaved sound...
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3762809 |
ORIGINAL MOUNT OR HOLDER FOR OPTICAL PROJECTION SYSTEM
An original mount or holder for an overhead projector is provided in which a transparent original is formed or placed upon the flat surface of a Fresnal lens and a light reflecting surface or...
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3752574 |
AUDIO-VISUAL APPARATUS
An audio-visual apparatus simultaneously reproduces a sound magnetically recorded on a teaching material or audio-visual sheet and projects onto a screen a writing or picture printed or otherwise...
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3751150 |
AUDIO-VISUAL APPARATUS
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...
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3746439 |
VISUAL-EFFECTS-PRODUCING MEANS IN AN AUDIO-VISUAL TOY
The nature of the projected picture in an audio-visual toy may be changed by manipulating different manual controls to position colored filters or an apertured plate in the path of the light beam...
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3734606 |
CARTRIDGE CONSTRUCTION FOR CONTAINING AUDIO AND VISUAL MEDIUMS
A cartridge construction has a central hub for receiving a quantity of magnetic tape and a film disc, each positioned about the axis of a shaft, to form an integral audio-visual display unit for...
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