US 11,080,574 B2Granted

Image processing apparatus

AssigneeFUJIFILM Business Innovation Corp.

InventorsMasaki Nudejima, Tomoyuki Ono, Takayuki Hashimoto, Daiki Takazawa

Life of this patent

Estimating the term…

Loading patent…

Abstract

An image processing apparatus includes a processor configured to process an image; a reading direct memory access controller (DMAC) configured to read data from the memory; a writing DMAC configured to write data to the memory, each DMAC configured to control direct memory access to a memory; an upper first-in first-out (FIFO) unit connected to the reading and writing DMACs and includes FIFOs of the number equal to the number of channels of each of the reading and writing DMACs and a lower FIFO unit connected between the upper FIFO unit and the processor and includes FIFOs that correspond to the FIFOs of the upper FIFO unit at a ratio of 1 upper FIFO unit to F lower FIFO units (F being an integer equal to 2 or larger).

Claims7

Dependent claims

An image processing apparatus comprising:

a processor configured to process an image;
a reading direct memory access controller (DMAC) and a writing direct memory access controller (DMAC), each DMAC configured to control direct memory access to a memory, the reading DMAC configured to read data from the memory, the writing DMAC being configured to write data to the memory;
an upper first-in first-out (FIFO) unit that is connected to the reading DMAC and the writing DMAC and includes FIFOs whose number is equal to a number of channels of each of the reading DMAC and the writing DMAC;
and
a lower FIFO unit that is connected between the upper FIFO unit and the processor and includes FIFOs that correspond to the FIFOs in the upper FIFO unit at a ratio of 1 FIFO in the upper FIFO unit to F FIFOs in the lower FIFO unit (F being an integer equal to 2 or larger), wherein a number of lines of data input to the processor is modifiable in steps of the number of channels of the reading DMAC by not using part of the F FIFOs corresponding to each FIFO of the upper FIFO unit.

2 more elements

Dependencies are inferred from the claim text.