Image input/output control method and image input/output apparatus
AssigneeCanon Kabushiki Kaisha
InventorHiroyuki YAGUCHI
Life of this patent
Estimating the term…
Abstract
In the case in which an image processing mode is a high-speed copy mode in which follow-up control is possible, setting is made to perform “follow-up control” for setting a mode for not compressing an image or a fixed length compression mode for an image read by a scanner, storing an inputted image in a memory in accordance with the setting, and outputting the image stored in the memory to a printer during scanning. Consequently, image input/output processing from input and storage of an image in the memory until output of the stored image can be performed at high speed.
Claims15
An image input/output control method for a device that transfers one page data to a memory and outputs the one page data from the memory, the method comprising:
- compressing one page data using variable length compression, transferring the compressed one page data to the memory, and initiating output of the transferred one page data from the memory after the transfer of the compressed one page data terminates;
- and
- transferring one page data to the memory without compressing the one page data, and initiating output of the transferred one page data transferred from the memory while the one page data is being transferred to the memory.
An image input/output control method for a device that transfers one page data to a memory and outputs the one page data from the memory, the method comprising:
- compressing one page data using variable length compression, transferring the compressed one page data to the memory, and initiating output of the compressed one page data from the memory after the transfer of the compressed one page data terminates;
- and
- compressing one page data using fixed length compression, transferring the compressed one page data to the memory, and initiating output of the compressed one page data transferred from the memory while the compressed one page data is being transferred to the memory.
An image input/output control method for a device that transfers one page data to a memory and outputs the one page data from the memory, the method comprising:
- transferring, in case of no magnification of 100%, one page data to the memory, and initiating output of the transferred one page data from the memory after the transfer of the one page data terminates;
- and
- transferring, in case of magnification of 100%, one page data to the memory and initiating output of the transferred one page data transferred from the memory while the one page data is being transferred to the memory.
An image input/output control method for a device that transfers one page data to a memory and outputs the one page data from the memory, the method comprising:
- transferring, in case of image rotation, one page data to the memory, and initiating output of the transferred one page data from the memory after the transfer of the one page data terminates;
- and
- transferring, in case of no image rotation, one page data to the memory and initiating output of the transferred one page data transferred from the memory while the one page data is being transferred to the memory.
An image input/output control apparatus that transfers one page data to a memory and outputs the one page data from the memory, the apparatus comprising:
- a compression unit adapted to compress one page data using variable length compression, transferring the compressed one page data to the memory, and initiating output of the transferred one page data from the memory after the transfer of the compressed one page data terminates;
- and
- a transfer unit adapted to transfer one page data to the memory without compressing the one page data, and initiating output of the transferred one page data transferred from the memory while the one page data is being transferred to the memory.
Dependencies are inferred from the claim text.