Image processing apparatus, image forming apparatus, and image processing method for improving performance of reading data of RIP process
AssigneeKYOCERA Document Solutions Inc.
InventorsMasayoshi Nakamura, Kendrick Esperanza Wong
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Abstract
Provided is an image processing apparatus that improves performance of reading data of a RIP process. A multi-channel DMA (Direct Memory Access) controller performs reading or writing of stored data related to a RIP (Raster Image Processor). A FIFO (First In, First Out) is able to change a number of entries for each of the channels of the multi-channel DMA controller. An image processing control unit interprets the RIP order, and according to that order, changes the configuration of the number of entries for each of the channels, and controls processing of the data.
Claims17
An image processing apparatus, comprising:
- a multi-channel DMA (Direct Memory Access) controller configured to perform reading or writing of stored data related to a RIP (Raster Image Processor);
- a FIFO (First In, First Out) configured to be able to change a number of entries for each of the channels of the multi-channel DMA controller;
- and
- an image processing control unit configured to interpret a RIP order and change the configuration of the number of entries allotted for each of the channels such that the number of entries allotted to a respective channel is increased when the image processing control unit determines that the respective channel has a number of entries that is above a threshold and the number of entries allotted to the respective channel is decreased when the image processing control unit determines that the respective channel has a number of entries that is below a threshold, and control processing of the data.
An image processing method executed by an image processing apparatus comprising a DMA and a FIFO, whereby the image processing apparatus, comprising the steps of:
- controlling a multi-channel DMA (Direct Memory Access) that performs reading or writing of stored data related to a RIP (Raster Image Processor);
- setting a FIFO (First In, First Out) that is able to change a number of entries for each of the channels of the multi-channel DMA;
- and
- interpreting a RIP order, changing the configuration of the number of entries allotted for each of the channels such that the number of entries allotted to a respective channel is increased when the image processing apparatus determines that the respective channel has a number of entries that is above a threshold and the number of entries allotted to the respective channel is decreased when the image processing apparatus determines that the respective channel has a number of entries that is below a threshold, and controlling processing of the data.
Dependencies are inferred from the claim text.