I ve written some many years ago dynamic Huffman algorithm to compress and decompress data. It is mainly targeted to data with some symbols occuring more often than the rest (e.g. having some data file consisted of 3 different symbols and their total number of occurence in that file s1(1000), s2(200), s3(30) so the total length of file is 1000+200+30=1230 bytes, it will be encoded assigning one bit to s1 and 2 bits to s2, s3 so the encoded length will be 1*1000+2*(200+30)=1460 bits=182 bytes). In the best case the file consisted of just one symbol will be encoded with compression ratio as 1:8. Huffman coding is used in image compression, however in JPEG2000 arithmetic codec is imployed.
标签： decompress algorithm compress Huffman
上传时间： 2016-05-16
上传用户：aysyzxzm
The DiskPerf filter driver monitors disk-accesses, capturing performance data. It supports Plug and Play, Power Management, and WMI . It is not 64-bit compliant
标签： disk-accesses performance capturing DiskPerf
上传时间： 2013-12-23
上传用户：agent
Addfilter is a command-line application which adds and removes filter drivers for a given drive or volume. It is intended to demonstrate how to insert a filter driver into the driver stack of a device. The sample illustrates how to do this by using the SetupDi APIs. The sample works on the x86 platform. It has only been tested in a 32-bit environment. Since Addfilter is not a driver, it does not deal with Plug and Play or Power Management.
标签： command-line application Addfilter drivers
上传时间： 2016-05-17
上传用户：xzt
The CD Audio sample allows some non-SCSI2 CD ROMs to support audio operations by intercepting the relevant audio ioctls and translating them into the command block(s) expected by the non-compliant cdroms. It supports Plug and Play and Power Management, and is 64-bit compliant.
标签： intercepting operations non-SCSI support
上传时间： 2016-05-17
上传用户：ANRAN
The CD ROM driver is used with Classpnp.sys to provide access to CD ROMs and DVD ROMs. It supports Plug and Play, Power Management, and AutoRun (media change notification). It is 64-bit compliant.
标签： ROMs Classpnp supports provide
上传时间： 2014-01-12
上传用户：stella2015
The Disk sample is used with Classpnp.sys as disk driver. The sample supports Plug and Play, Power Management, WMI, and failure prediction (S.M.A.R.T.), and it is 64-bit compliant.
标签： sample The Classpnp supports
上传时间： 2014-01-27
上传用户：bruce
Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scripting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communications is bit-error- rate testing of modems. The bit-error-rate performance of a receiver is a figure of merit that allows different designs to be compared in a fair manner. Performing bit-error-rate testing withMatlab is very simple, but does require some prerequisite knowledge
标签： communications simulating scripting digital
上传时间： 2014-01-02
上传用户：plsee
这是序列检测器。串行序列产生是指根据时钟和相应的控制信号，产生稳定的单bit输出信号；监测器指根据相应时钟输入的电平序列，监测该序列中是否存在预设的序列，无论从第几个输入开始，只要存在，总能监测到。监测到予以标示。
上传时间： 2013-12-12
上传用户：sammi
ORG 0000H ljmp star org 0003h ljmp $ star:mov p1,#00h mov p2,#00h mov p3,#00h int: setb ea jiance bit p1.0 shoud bit p1.1 zid bit p1.2 syajin bit p1.3 smanjin bit p1.4 jkaiguan bit p1.5 xianwei bit p1.6 tingzhi bit p3.2 out: yajin bit p2.0 manjin bit p2.1 kuaijin bit p2.2 hanjie bit p2.3程序
上传时间： 2014-01-09
上传用户：athjac
This paper presents a low-power asynchronous implementation of the 80C51 microcontroller. It was realized in a 0.5 µ m CMOS process and it shows a power advantage of a factor 4 compared to a recent synchronous implementation in the same technology. The chip is fully bit compatible with the synchronous implementation, and timing compatible for external memory access. The circuit is a compiled VLSI-program, using Tangram as VLSI-programming language and the Tangram tool set to compile the design automatically to a standard-cell netlist. This design approach proves to be powerful enough to describe the microcontroller and derive an efficient implementation. Further, it offers the designer the possibility to explore various alternatives in the design space.
标签： microcontroller implementation asynchronous low-power
上传时间： 2016-06-07
上传用户：冇尾飞铊
