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US 6,191,865 B1Granted
Image processing system and method for controlling such system
AssigneeCanon Kabushiki Kaisha
InventorMasayoshi Takahashi
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Abstract
An image generating system is structured to transfer the N-dot multivalued image data from an image generating device to write them on the N numbers of FIFO memories in synchronism with a specific transfer clocking, and to read them out to the engine by the clock having 1/N transfer frequency. This clock synchronizes with the horizontally synchronous signals. Then, the image data are selected by means of a selector one after another for output. The multivalued image data thus output are converted into the binary image data to be transferred to the engine in synchronism with the transfer frequency. In this way, the system can be formed simpler with ease as desired.
Claims33
An image generating system having an interface unit between an image generating device and an image formation device,
- said image generating device being provided with transfer means for transferring a plurality of pieces of N-dot data in parallel to said interface unit in synchronism with a transfer clocking from said image generating device, and
- said interface unit comprising:
- first conversion means for converting the plurality of pieces of N-dot data transferred in parallel from said image generating device to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to said image formation device in synchronism with an image clock signal from said image formation device.
3 more elements
A method of controlling an image generating system having an interface unit between an image generating device and an image formation device, comprising the following steps of:
- inputting a plurality of pieces of N-dot data in parallel from said image generating device in synchronism with a transfer clocking;
- converting the plurality of pieces of N-dot data input in parallel to a single N-dot data;
- converting the single N-dot data to one-dot serial data;
- and
- outputting the converted one-dot serial data to said image information device in synchronism with an image clock signal from said image formation device.
2 more elements
An image processing system for generating images in accordance with image information to be generated in an image generating unit, comprising:
- N image memories for separately storing one image divided into N images;
- transferring out control means for controlling the transferring out of image data for said N image memories per each of a plurality of pieces of N-dot portions in parallel in synchronism with a transfer clocking;
- N memories for storing each of the plurality of pieces of the N-dot portions transferred out in parallel by said transferring out means;
- first conversion means for converting the plurality of pieces of N-dot portions transferred in parallel to said N memories to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
4 more elements
An image processing system for generating images in accordance with image information generated in an image generating unit, comprising:
- one image memory for storing one image;
- data dividing means for dividing one image transferred out one after another from said image memory into N images;
- first transferring out control means for controlling the transferring out of the N-images from said data dividing means per each of a plurality of pieces of N-dot portions in parallel at a time in synchronism with a given transfer clocking;
- N memories for storing separately the plurality of pieces of N-dot portions transferred out in parallel by said first transferring out control means;
- first conversion means for converting the plurality of pieces of N-dot portions transferred in parallel to said N memories to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
5 more elements
An image generating device for generating image information, comprising:
- N image memories for separately storing one image divided into N images;
- and
- transferring out control means for controlling a transferring out of image data from said N image memories per each of a plurality of pieces of N-dot portions in parallel in synchronism with a transfer clocking;
- first conversion means for converting the plurality of pieces of N-dot portions of image data transferred in parallel from said N image memories to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
4 more elements
An image generating device for generating image information, comprising:
- one image memory for storing one image;
- data dividing means for dividing one image transferred out one after another from said image memory into N images;
- transferring out control means for controlling a transferring out of image data from said data dividing means per each of a plurality of pieces of N-dot portions in parallel at a time in synchronism with a transfer clocking;
- first conversion means for converting the plurality of pieces of N-dot portions transferred in parallel from said image generating device to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
4 more elements
An image processing device comprising:
- first output means for outputting in parallel a plurality of pieces of N-dot image data having plural adjacent-dot portions;
- and
- first conversion means for converting the plurality of pieces of N-dot image data output in parallel from said first output means to a single N-dot data;
- second conversion means for converting the single N-dot image data converted by said first conversion means to one-dot serial data;
- and
- second output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
3 more elements
An image processing system for generating images in accordance with image information generated in an image generating unit, comprising:
- a memory adapted for reading out a plurality of pieces of N-dot image data;
- transferring out control means for controlling the transferring out the plurality of pieces of N-dot image data from said one image memory in parallel in synchronism with a transfer clocking;
- N memories for storing separately the plurality of pieces of N-dot image data transferred out by said transferring out control means;
- first conversion means for converting the plurality of pieces of N-dot image data transferred in parallel for storage in said N memories to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
4 more elements
An image generating device for generating image information, comprising:
- an image memory adapted for transferring out a plurality of pieces of N-dot image data;
- transferring out control means for controlling the transferring out of the plurality of pieces of N-dot image data from said one image memory in parallel in synchronism with a transfer clocking;
- first conversion means for converting the plurality of pieces of N-dot data transferred in parallel from said image memory to a single N-dot data;
- second conversion means for converting the single N-dot data converted by said first conversion means to one-dot serial data;
- and
- output means for outputting the one-dot serial data converted by said second conversion means to an image formation device in synchronism with an image clock signal from said image formation device.
3 more elements
Dependencies are inferred from the claim text.