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US 4,890,314 AGranted
Teleconference facility with high resolution video display
AssigneeBell Communications Research, Inc.
InventorsThomas H. Judd, Lanny S. Smoot
Life of this patent
Estimating the term…
Abstract
A station for use in a teleconferencing system is disclosed. The station includes an arrangement comprising a plurality of image sensing devices, each of which provides a sub-image. The sub-images are joined to form a single high resolution video display. Illustratively, the arrangement comprises a plurality of image sensing devices and one or more mirrors to insure that the fields of view of the image sensing devices are contiguous at all relevant distances. Alternatively, an array of image sensing devices may be utilized wherein the horizontal and vertical scans of the devices are cropped.
Claims14
A station for use in a teleconferencing system comprising
- display means for displaying a first high resolution video image formed from a plurality of adjoining first sub-images transmitted to said station from a remote location,
- image sensing means for producing at said remote location a second high resolution video image comprising a plurality of second sub-images, said image sensing means comprising a plurality of individual image sensing devices, each of which produces one of said second sub-images, and means for eliminating overlap between adjoining ones of said second subimages, and
- means for transmitting audio signals to and receiving audio signals from said remote location via a plurality of two way audio channels.
- wherein said image sensing means comprises first and second video image sensing devices having first and second fields of view, respectively, and mirror means for insuring that said fields of view are contiguous over a range of distances from said image sensing devices so that the sub-images produced by said first and second image sensing devices do not develop.
1 more element
A station for use in a teleconferencing system comprising
- display means for displaying a first high resolution video image formed from a plurality of adjoining first sub-images transmitted to said station from a remote location,
- image sensing means for producing at said remote location a second high resolution video image comprising a plurality of second sub-images, said image sensing means comprising a plurality of individual image sensing devices, each of which produces one of said second sub-images, and means for eliminating overlap between adjoining ones of said second subimages, and
- means for transmitting audio signals to and receiving audio signals from said remote location via a plurality of two way audio channels,
- wherein said image sensing means comprises first and second image sensing devices for scanning first and second overlapping fields of view, respectively, and means for cropping the scanning of said first and second fields of view by said first and second image sensing devices so that the sub-images formed by said first and second image sensing devices do no overlap and merge continuously to form a single high resolution image.
1 more element
An arrangement for forming a single high resolution video image comprising:
- first and second video image sensing devices having distinct spatial locations, said first and second video image sensing devices being adapted to scan first and second fields of view, respectively, and being adapted to form first and second sub-images, respectively, said first and second image sensing devices being positioned so that said first and second fields of view overlap, and
- means for cropping the scanning of said first and second image sensing devices so that said first and second sub-images do not overlap and merge continuously to form said single high resolution image.
A station for use in a teleconferencing system comprising
- display means for displaying a first high resolution video image formed from a plurality of adjoining first sub-images transmitted to said station,
- image sensing means for producing at a remote location a second high resolution video image comprising a plurality of second sub-images, said image sensing means comprising a plurality of individual image sensing devices, each of which produces one of said second sub-images, and
- means for transmitting audio signals to said remote location,
- wherein said image sensing means comprises first and second image sensing devices for scanning first and second fields of view respectively, and mirror means for insuring that said fields of view are contiguous over a range of distances from said image sensing devices so that the sub-images produced by said first and second image sensing divides merge continuously into said second high resolution image.
1 more element
A station for use in a teleconferencing system comprising
- display means for displaying a first high resolution video image formed from a plurality of adjoining first sub-images transmitted to said station,
- image sensing means for producing at a remote location a second high resolution video image comprising a plurality of second sub-images, said image sensing means comprising a plurality of individual image sensing devices, each of which produces one of said second sub-images, and
- means for transmitting audio signals to said remote location,
- wherein said image sensing means comprises first and second image sensing devices for scanning first and second overlapping fields of view, respectively, and means for cropping the scanning of at least one of said fields of view by at least one of said first and second image sensing devices so that the sub-images formed by said first and second image sensing devices merge continuously.
1 more element
A teleconferencing station for use in a teleconferencing system comprising
- first and second video display devices for receiving first and second video signals generated by first and second low resolution video imaging devices having first and second spaced apart positions at a location remote from said teleconferencing station and substantially contiguous fields of view, said first and second video display devices displaying first and second low resolution sub-images, respectively, in response to said first and second video signals, said first and second low resolution sub-images being displayed in adjoining positions so that they merge contiguously along a boundary to form a first high resolution video image,
- third and fourth low resolution video imaging devices having third and fourth spaced apart locations at said station for generating third and fourth video signals corresponding to third and fourth low resolution video sub-images for transmission to said remote location for formation of a second high resolution video image from said third and fourth low resolution sub-images at said remote location, and
- means for transmitting audio signals between said station and said remote location.
Dependencies are inferred from the claim text.