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US 6,784,891 B2Granted
Image display system
AssigneeHitachi, Ltd.
InventorsTatsuki Inuzuka, Tsunenori Yamamoto, Ikuo Hiyama, Makoto Tsumura, Yasutaka Toyoda
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Abstract
A control device, which is capable of suppressing an increase in a load of a data transfer for an increase of an amount of data is provided. The control device includes a compressed data generation unit for generating a compressed data based on a set-up value inputted, and a controller for outputting a frame rate information to the compressed data generation unit, and for making compressed data to be outputted from a memory for use in storing a compressed data to an image display device in accordance with the frame rate.
Claims13
An image distribution system, comprising:
- a recording device for recording a distribution request from a user, information about an image display device and a transmission rate of image data, on a recording medium;
- a compressed data generating device for generating compressed image data by performing data compression of input image data to be displayed on said image display device, in accordance with said distribution request, said information about said image display device and said transmission rate;
- transmission means for transmitting said compressed image data;
- and
- an accounting device for processing said distribution request recorded on said recording medium or said information of said image display device, and for performing an accounting in response to a result of said processing.
2 more elements
A display control device for using an image display device connected thereto, comprising:
- a compressed data generation unit for performing data compression of input image data in accordance with a set-up value indicating frame rate information of said image display device to generate and output compressed image data;
- a compressed data memory for storing said compressed image data output from said compressed data generation unit;
- and
- a controller arranged to provide said set-up value indicating frame rate information to said compressed data generation unit, to control a read-out of said compressed image data from said compressed data memory in accordance with said set-up value indicating frame rate information, and to output said compressed image data read-out from said compressed data memory to said image display device;
- wherein said compressed data generation unit changes a compression ratio in accordance with said set-up value indicating frame rate information, and compresses said input image data at a changed compression ratio.
2 more elements
An image display system comprising:
- an image display device to display image data;
- a compressed data generation unit to compress input image data in accordance with a set-up value indicating frame rate information of said image display device, and to generate and output compressed image data;
- a compressed data memory to store said compressed image data output from said compressed data generation unit;
- and
- a controller arranged to provide said set-up value indicating frame rate information to said compressed data generation unit, to control the read-out of said compressed image data from said compressed data memory in accordance with said set-up value indicating frame rate information, and to output said compressed data read-out from said compressed data memory to said image display device;
- wherein said compressed data generation unit changes a compression ratio in accordance with said set-up value indicating frame rate information, and compresses said input image data at a changed compression ratio.
3 more elements
A display control device comprising:
- a management unit to generate a compression control signal and address control signal based on input information including at least a frame rate;
- a compressed data generation unit to perform data compression of input image data in response to the compression control signal, and to generate compressed image data including header information;
- a compressed data memory to store the compressed image data;
- and
- an address generating unit to generate a memory address indicating one of a write address and a read address, in response to the address control signal, and to sequentially output the memory address for controlling a write/read operation of the compressed image data onto or from said compressed data memory,
- wherein said compressed data generation unit varies a compression ratio in accordance with the frame rate, and performs data compression of said input image data at the compression ratio in matching with the frame rate.
3 more elements
Dependencies are inferred from the claim text.