Compressed video image transmission method and apparatus using the same
First Claim
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1. An apparatus for transmitting compressed video image via a network, comprising:
- a plurality of video image transmission devices each having an image pickup device and connected to transmit compressed data of a video image taken by said image pickup device and a reference image of the video image to said network, part of a transmission capacity of said network is allocated for transmission of the reference image; and
at least one video receiver device connected to said network and including a monitor for displaying the respective reference images received via said network and an operating device for allowing an operator to select desired one of the reference images, the monitor displaying said respective reference images and the video image corresponding to the selected reference image.
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Abstract
A compressed image transmission system wherein desired one of a plurality of pieces of compressed video data transmitted onto a network from a plurality of transmission devices is selected at one of receiver terminals connected to the network and received to the receiver terminal. The transmission devices transmit reference images corresponding to the associated compressed video data to the network. Each of the receiver terminals displays the received reference image on a monitor, and an operator specifies the compressed video data to be received on the basis of the display state of the reference image.
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Citations
18 Claims
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1. An apparatus for transmitting compressed video image via a network, comprising:
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a plurality of video image transmission devices each having an image pickup device and connected to transmit compressed data of a video image taken by said image pickup device and a reference image of the video image to said network, part of a transmission capacity of said network is allocated for transmission of the reference image; and
at least one video receiver device connected to said network and including a monitor for displaying the respective reference images received via said network and an operating device for allowing an operator to select desired one of the reference images, the monitor displaying said respective reference images and the video image corresponding to the selected reference image. - View Dependent Claims (2, 3, 4)
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5. A compressed data transmission method in which at least one video receiver device connected to a network and including a monitor receives desired compressed video data via the network from a plurality of video image transmission devices connected to the network for generating compressed video data, comprising the steps of:
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transmitting the compressed video data onto said network from at least one of said plurality of video transmission devices;
transmitting a reference image corresponding to the compressed video data generated by the each video transmission device from each of said plurality of video image transmission devices onto said network;
displaying said respective reference images in association with transmission states of the corresponding compressed video data on said monitor of said video receiver device; and
allowing an operator to specify the desired compressed video data to be received on the basis of the displayed transmission states. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A compressed video image transmission apparatus for transmitting a compressed video image via a network, comprising:
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a plurality of video image transmission devices connected to said network each for generating compressed video data; and
at least one video receiver device connected to said network and including at least one monitor, wherein each of said plurality of video image transmission devices includes a reference image generator for generating a reference image corresponding to the compressed video data generated by each video image transmission device and transmitting the compressed data to said network, and said video receiver device includes;
a transmission state monitor for monitoring a transmission state of the compressed video data corresponding to said reference image generated by said each video transmission device and displaying the state on said monitor in association with the reference image, and an operating device for allowing an operator to instruct desired one or ones of the compressed video data to be received on the basis of the displayed transmission state. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification