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Image supply device, image display device, image transfer system, and method of determining image compression method

A technology of an image display device and a supply device, which is applied in the directions of image communication, digital output to display devices, static indicators, etc., can solve the problem that continuous images cannot be displayed in real time, etc.

Active Publication Date: 2007-10-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case of continuously transmitting image signals and displaying continuous images on the projector, there is a problem that there will be intervals between consecutive images and real-time display cannot be performed.

Method used

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  • Image supply device, image display device, image transfer system, and method of determining image compression method
  • Image supply device, image display device, image transfer system, and method of determining image compression method
  • Image supply device, image display device, image transfer system, and method of determining image compression method

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no. 3 example

[0073] D. Variations:

[0074] A. The first embodiment:

[0075] A first embodiment will be described with reference to FIGS. 1 and 2 . FIG. 1 is a block diagram showing a schematic configuration of an image transmission system having an image supply device as a first embodiment of the present invention. As shown in FIG. 1 , the image delivery system of this embodiment has a computer 100 as an image supply device, a projector 200 as an image display device, and a USB cable 300 connecting the computer 100 and the projector 200 . The computer 100 has a function of supplying an image to the projector 200 via the USB cable 300 and causing the projector 200 to project and display the image on a screen (not shown).

[0076] The computer 100 is, for example, a personal computer (PC), and has a CPU 102 for performing various processes and controls according to computer programs, an HD 104 for storing the above-mentioned computer programs and data, and a memory as a general-purpose m...

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Abstract

An image supply device to be connected to an image display device via a predetermined transmission channel, for supplying the image display device with an image signal by transferring the image signal to the image display device via the transmission channel, thereby making the image display device display an image represented by the image signal, includes a transfer rate derivation section that derives a transfer rate of the image signal when transferring the image signal to the image display device via the transmission channel, and a compression method determination section that determines a compression method of the image signal when supplying the image display device with the image signal by transferring the image signal to the image display device via the transmission channel based on the transfer rate derived in the transfer rate derivation section.

Description

technical field [0001] The present invention relates to a technique for transmitting and supplying an image signal from an image supply device to an image display device via a predetermined transmission line. Background technique [0002] For example, when displaying an image generated by a computer by projecting it with a projector, the computer and the projector are connected by a predetermined transmission line, and an image signal from the computer is transmitted and supplied to the projector via the transmission line. However, depending on the type of the transmission line, etc., the transmission speed of the signal may be relatively slow (for example, USB1.1, etc.), and in this case, the transmission time of the image signal will become longer. [0003] Therefore, when transmitting an image signal from a computer to a projector, it is proposed to compress the image signal in the computer and transmit the compressed image signal to the projector to shorten the transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26G06F3/14G06F3/153G09G3/20G09G5/00H04N1/00H04N1/21H04N19/00H04N19/134H04N19/164
CPCH04N19/00078H04N19/00133H04N19/00775H04N19/134H04N19/60H04N19/12
Inventor 市枝博行
Owner SEIKO EPSON CORP