參數(shù)資料
型號(hào): μSAP70732-B03
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 17/166頁
文件大小: 713K
代理商: ΜSAP70732-B03
17
CHAPTER 1 OVERVIEW
1.1 MIDDLEWARE
Middleware is a software group that has been tuned to fully exploit the performance of a processor. The
software implements processing that is conventionally performed by hardware. The advent of high-
performance RISC (reduced instruction set computer) processors has spawned the concept of middleware,
with which processing can be realized with ROM/RAM alone, without the need for dedicated hardware.
NEC supplies system solutions that support a wide range of user needs by providing human-machine
interface and signal processing technologies in the form of middleware.
1.2 JPEG
JPEG stands for Joint Photographic Experts Group, an international still image compression/expansion
standard, established in 1991. This standard is laid down in documents ISO/IEC 10918-1 and 2.
Figure 1-1. Image Compression/Expansion
Still image
Compression
Expansion
JPEG file
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