iec c15

:video Format identification Code. Pr0~pr3:pixel repetition Factor. Relates to the issue of double clocking Pixel repetition. For example, video formats with speeds below 25HMz (such as 480i in NTSC are only 13.5MHz) can be transmitted using the mechanism of pixel repetition (Pixel repetition). SC1, Sc0:non-uniform picture scaling, is morph mode. The packaged content of AVI Infoframe also includes: Etb:line number of end of the top bar. Sbb:line number of start of bottom bar. Elb:pixel number o

Software test Type analysis is one of the important means to refine the condition of software test case, by classifying the test type, the software tester can consider the test conditions from different dimensions and find different types of defects to improve the coverage of the test. Test type is not a standard, its definition needs to consider the different products within the company, combined with the characteristics of project development and software products, as well as testers in the fi

capacity of a single multimode fiber is usually determined by its mode bandwidth. In a strictly speaking sense, the system capacity depends on the interaction of its various components, such as lasers, optical fibers, and detectors. In particular, the interaction between the VCSEL signal source and the light injected into multimode fiber can affect the effective bandwidth of the system. The latest IEC (International Electrotechnical Commission) mult

mean effect, which has a smaller variance. The value of the PMD link reflects the value of the system more accurately and effectively, and makes full use of the real potential of the optical fiber. Many end users have adopted this method in their system design. It is worth mentioning that the Cabling Process may slightly increase or decrease the optical fiber's PMD. The value of the PMD link is expressed by the following formula: M: Number of optical cables connected to the same length Xi: PMD

voltage range: 12 to 400 V Frequency Range: 0 to 60Hz Display Screen: LCD, with function display External voltage test: up to 400 v ac/DC Overvoltage type: cat iii 300 V Pollution Level: 2 Power Supply: 6 × 1.5 V, IEC LR6 Power Consumption: up to 40 mA FUSE: F 0.5 A 500 V, 6 3x32mm Temperature range:Working: 0 °C to 40 °C, with a maximum relative humidity of 80% non-condensing)Storage:-20 °C to + 60 °C, up to 80% non-condensing relative humi

multimode optical fiber is usually determined by the mode bandwidth. Strictly speaking, the system capacity depends on the interaction between various components, such as lasers, optical fibers, and detectors. In particular, the interaction between the VCSEL signal source and the light injected into multi-mode optical fiber can affect the effective bandwidth of the system. The latest IEC International Electrotechnical Commission) multimode optical fi

capabilitySource and Destination Address RoutingExcellent cost effectivenessPowerful VPN FunctionsSupports Dynamic IP addresses Ii. hardware configuration of the software router Firewall Electrical Performance of software router FirewallA. Power Supply: AC 110/220 V 50/60 HZ, 3.0A max), 260 W max)B. Environmental specifications:Operating temperature: 0-45 degrees CelsiusNon-operating temperature:-20-65 degrees CelsiusRelative humidity: 10-90% @ 40 degrees Celsius, non-condensing Implemented nat

, which has now been renamed INCITS), established a special technical committee J11 (J11 is the committee number, the full name is X3J11) and is responsible for the drafting of the C language Draft standards . In 1989, the draft was formally adopted by ANSI as the United States national Standard , known as the C89 standard ."C90 (ISO C)" Subsequently, the second edition of "The C Programming Language" was published and the contents were updated according to ANSI C (C89). In 1990, with the effort

Many of my friends will find that the capacity will decrease when they buy a mobile hard drive and a USB flash drive inserted into the computer. Originally, the 16 gb usb flash drive would be less than 16 GB, and the 1 TB mobile hard drive would be only 931 GB. In fact, it is found that most of the time the capacity is insufficient on the Windows platform, if it is on Linux or Mac, it is the standard capacity. Figure shows the capacity of 1 TB hard disk in uubuntu The reason is that the

pointers conquer C pointer Data structure:Data Structure and algorithm are usually bound. In fact, this is something independent of the language, but it is implemented through C. Here. Data Structure and algorithm analysis: C language description (source book version 2nd)/data structures and algorithm analysis in C interface and implementation: techniques for creating reusable software/C interfaces and implementations techniques for creating reusable software: C language description/mastering

In MPEG-II standards, in order to combine one or more audio, video, or other basic data streams into one or more data streams for storage and transfer, it must be re-packaged and encoded. In the code stream, it also needs to insert various time tags, system control and other information, and finally sent to the channel encoding and modulation. In this way, two types of data streams, TS and PS, can be formed, which are suitable for different applications. Figure 1 shows the multiplexing of the vi

bit 8 (value 0x0100) Discrete 9 will be bit 7 (value 0x0080) Discrete 10 will be bit 6 (value 0x0040) Discrete 11 will be bit 5 (value 0x0020) Discrete 12 will be bit 4 (value 0x0010) Discrete 13 will be bit 3 (value 0x0008) Discrete 14 will be bit 2 (value 0x0004) Discrete 15 will be bit 1 (value 0x0002) Discrete 16 will be bit 0 (value 0x0001) 　　 When more than 16 bits, such as a discrete input modulus of 32 points, the discrete 1 to 16 will be in the first register, and the discrete 17 to

type In the process of ANSI standardization, some new features were added. ANSI also provides a set of standard function libraries. ANSI ISO (International Organization for Standardization) set up the ISO/IEC JTC1/SC22/WG14 Working Group to stipulate the international standard C language. Through minor modifications to the ANSI standard, ISO 9,899:1990 was eventually passed. Subsequently, ISO standards are adopted by ANSI. Improvements to the tradi

1.DASH Introduction DASH, also known as MPEG dash,dash:dynamic Adaptive streaming over HTTP, is a video streaming technology that transmits dynamic bitrate on the internet, similar to how Apple's Hls,dash will pass media Presentation description (MPD) slices video content into a short file fragment, each with multiple different bitrate, and the DASH client can choose a bitrate to play based on the network, enabling seamless switching between different bitrate. Dash was developed by MPEG (Moving

bit B7 Tim 1. ISO 8859-1: ISO 8859, universal ISO/IEC 8859, is the standard of a series of 8-bit character sets developed jointly by the International Organization for Standardization (ISO) and IEC, and currently defines 15 character sets. ASCII contains spaces and 94 "printable characters" that are sufficient for use in English. However, other languages that use the Latin alphabet (mainly the language

The world's fire standards vary, North American UL standards from high to low flame retardant, respectively: Flame Retardant CMP (suitable for ventilation ducts or air-pressurized areas) Non-combustion trunk-level CMR (for vertical trunk and horizontal area) Non-combustion commercial grade cm (suitable for horizontal area) Non-combustion general grade CMG (suitable for horizontal area) General household grade CMX (must be laid at one root level) The 20XX series cables of the United States

I. OverviewZxing can be recommended for third-party libraries such as barcode4j or zxing.BARCODE4J Profile Link: http://barcode4j.sourceforge.net/Zxing Profile Link: https://github.com/zxing/zxingSecond, barcode4jKey code:New Datamatrixbean (); Final int dpi = += "Image/png"newnewfalse, 0The supported barcode formats are: Interleaved 2 of 5 ITF-14 Code 39 Code 128 EAN-128, gs1-128 (based on Code 128) Codabar Upc-a and UPC-E (with Supplementals) EAN-13 and EAN

c++0x EditorC + + is a programming language with international standards, commonly called ANSI/ISO c++,1998 International Standard Organization (ISO) promulgated the C + + language International standard ISO/IEC 1488-1998. 1998 is the first year of the C + + Standards Committee, the next every 5 years as the actual need to update the standard, the most recent standard update is in 2009, currently we generally call the standard c++0x. Unfortunately, be

C ++ Technical Report 1 (tr1) is the general name of ISO/iec tr 19768, C ++ library extensions (function library extension. Tr1 is a document that proposes an additional project for the c ++ standard library. These append items include regular expressions, smart pointers, hash tables, and random number generators. Tr1 itself is not a standard. He is a draft document. However, the project he proposed is likely to become the next official standard. The

cp1257 Baltic1 cp1258 Vietnamese1 CP {number} ms-Windows: Any installed single-byte codePage2 cp932 Japan (Windows only)2 EUC-JP Japanese (unix only)2 sjis Japan (unix only)2 cp949 Korean (UNIX and Windows)2 EUC-Kr Korean (unix only)2 cp936 Simplified Chinese (Windows only)2 EUC-CN Simplified Chinese (unix only)2 cp950 traditional Chinese (on UNIX alias for big5)2 big5 traditional Chinese (on Windows alias for cp950)2 EUC-tw traditional Chinese (unix only)2 2byte-{name} Unix: Any double-byte en