M65762FP
M65762FP is QM-CODER manufactured by Mitsubishi Electric.
MITSUBISHI SEMICONDUCTOR (LSI)
QM-CODER DESCRIPTION
The M65762FP is a pression and depression LSI conforming to the high efficiency encoding system (QM-Coder) in the International Standard, the JBIG/JPEG (ITU-T Remendations T.81 and T.82) for coding still images. It also conforms to the International Standard (ITU-T Remendation T.85) for facsimile. The QM-Coder is an information dependent type which is capable of pletely restoring original image data, and is equipped with the learning function to always optimize parameters according to the statistical characteristics of images. The QM-Coder is therefore superior in pression ratio pared with the existing binary coding system (MH/MR/MMR) and can greatly improve the half toning image (dithered half toning image) whose pression ratio is especially poor.
- Number of processing lines
- Is capable of issuing the start of processing (temporary stop mand) several times to encode/decode any lines more than or equal to 65535 lines.
- Supporting 3-bus interface
- An 8-bit host bus corresponds to the MPU is available to load and store of context table RAM.
- For input/output of binary image data, is capable of performing 32-bit or 16-bit parallel or serial input/output.
- For input/output of coding data, is capable of selecting 32bit/16-bit/8-bit bus to perform DMA transfer of coding data.
- Is capable of making scale-down for coding and scale-up for decoding.
- Is capable of setting marker code for coding and detecting marker code for decoding.
- Built-in RAM for 4096 bytes for line memory, built-in context table RAM and built-in probability estimation table ROM of 113 status
- +5V single power supply
Features for facsimile.
- pletely conforms to the International Standard (ITU-T T.85)
- Achieves encoding/decoding with the arithmetic coder (QMCoder) conforming to the remendation of the International Standard JBIG/JPEG.
- Is expected to conform to the International Standard for...
