iec 62056

Organization for Standardization (ISO) and the revised ISO release was also adopted by ANSI, the name ANSI C (rather than ISO c) is still widely used. ANSI C is now supported by almost all widely used compilers. Most C code is now written on the basis of ANSI C.C89 and C90In 1983, the American National Standards Association formed a committee, X3J11, to create a set of standards for C. After a long and arduous process, the standard was completed in 1989 and formally entered into force as ANSI x

of theECMA-262, the standard defines what is called aECMAScript's new scripting language. Although Netscape has developed JavaScript was first submitted to the ECMA standardization, but because of the plan to rewrite the entire browser engine, Netscape had a whole year late to launch the "fully follow the ECMA Specification" JavaScript1.3 . and Microsoft introduced the IE4.0 of "fully following the ECMA Specification" a year ago. This leads to a direct consequence:JScript becomes the de facto

represented by 10G provides newer and higher requirements for the optical fiber system, and the traditional multimode fiber can only support 10G transmission within dozens of meters of the distance. The network industry has launched a series of optical fiber design and testing standards, such as IEC-60793-2-10,-49 and TIA-492AAAC, Tia/eia 455-220. To tie in with the new optical signal transceiver used for 10G applications, ISO/

standards are promulgated mainly by the following three organizations: ANSI (American National Standard Institute, United States State Standardization Organization); TIA (Telecommunication Industry Association, Federation of Telecommunications Industries); EIA (Engineering Institute Association, Engineering Technology Association). Typically, one of the organizations enacts a standard, which is amended by two other organizations. In Europe, the cable standard was issued by CENELEC (European Com

a Introduction This paper summarizes the audio coding algorithm of AAC (Advanced Audio Coding). First, we briefly introduce the development process of MPEG Audio (including AAC) and the AAC profile, and then combine the FAAC (free AAC) code to analyze the various modules of AAC coding algorithm in detail. two AAC Overview 1 MPEG and its AAC The development history of audio The 1988 ISO/IEC standardization organization established the M

IP [OPTIONS] OBJECT {COMMAND | help}This command contains almost all the methods of use, whereObject object={link | addr | addrlabel | route | rule | neigh | ntable | tunnel | maddr | mroute | mrule | monitor | xfrm | to Ken}Option options={-v[ersion] |-s[tatistics] |-d[etails] |-r[esolve] |-h[uman-readable] |-iec |-f[amily] {inet | inet6 | i px | dnet | LINK} | -o[neline] | -t[imestamp] | -b[atch] [filename] | -RC[VBUF] [size]}However, command is lon

+ LCD. To ensure the correctness of the test results, CD should be a known, low-loss test jumper. In general, LCD usually has little impact on the test results. This Method has become "Method B", with the advantage that the test result is the most accurate and is the preferred Method of TIA/EIA 568-B.1 standard, is the second recommended method in the ISO/IEC 11801 standard. However, the optical fiber port module of the optical power meter provided b

longer provide assurance for field jumper production with performance levels of cat5e or higher. Performance cannot be guaranteed if there is no strict process control during production and testing. This is a central focus in Z-MAX design because the modular plug is so critical to coupling performance with the end of the cable. Simon's engineers have thoroughly transformed the existing modular plug technology and designed the Z-MAX plug with the following features: 1. backward compatible and ca

setting of standards.In North America, standards are primarily promulgated by the following three organizations:ANSI (American National Standard Institute, Organization for Standardization of the United States );TIA (Telecommunication Industry Association, telecommunications Industry federation );Engineering Association (EIA ).Generally, one of the organizations issues a standard, which is then corrected by the other two organizations.In Europe, cable standards are published by CENELEC European

to the host and remote unit, directly Insert the Jumper into the tester to start the test immediately. Select the required test standard from the menu, place the tester's button in AUTOTEST, and press the test key. It takes about 15 seconds to know whether the Jumper meets Cat 5e or Cat 6 performance requirements.Optimize network performanceBecause the new TIA standard has stricter requirements on jumpers, simple connectivity or wiring diagram tests are not enough. Press the button to check whe

NFC Definition Near-Field Communication ( English:Near Field Communication , NFC ), Also known Short-range wireless communication It is a short-distance high-frequency wireless communication technology that allows electronic devices to transmit non-contact point-to-point data and exchange data within 10 centimeters (3.9 inches. This technology evolved from contact-free radio frequency identification (RFID, which is widely used in public transit systems and campus cards in many regions in Ch

Rasterfile (RAS)", fmtops);++fmtid;#endif#if !defined(EXCLUDE_JP2_SUPPORT)fmtops.decode = jp2_decode;fmtops.encode = jp2_encode;fmtops.validate = jp2_validate;jas_image_addfmt(fmtid, "jp2", "jp2", "JPEG-2000 JP2 File Format Syntax (ISO/IEC 15444-1)", fmtops);++fmtid;fmtops.decode = jpc_decode;fmtops.encode = jpc_encode;fmtops.validate = jpc_validate;jas_image_addfmt(fmtid, "jpc", "jpc", "JPEG-2000 Code Stream Syntax (ISO/

iso-8859-51 cp869 similar to iso-8859-71 cp874 Thai1 cp1250 Czech, Polish, etc.1 cp1251 Cyrillic1 cp1253 Greek1 cp1254 Turkish1 cp1255 Hebrew1 cp1256 Arabic1 cp1257 Baltic1 cp1258 Vietnamese1 cp{number} MS-Windows: any installed single-byte codepage2 cp932 Japanese (Windows only)2 euc-jp Japanese (Unix only)2 sjis Japanese (Unix only)2 cp949 Korean (Unix and Windows)2 euc-kr Korean

or higher. Represents the C version_ Stdc_iec_599 _ If the IEC 60559 floating point operation is supported, the value is 1._ Stdc_iec_599_complex _ If the IEC 60599 complex operation is supported, the value is 1._ Stdc_iso_000046 _ supported by the compiler, used to describe the ISO/IEC 10646 Standard year and month format: yyymmml 9. compound assignmentIn c99

the IEC 60559 floating point operation is supported, the value is 1._ Stdc_iec_599_complex _ If the IEC 60599 complex operation is supported, the value is 1._ Stdc_iso_000046 _ supported by the compiler, used to describe the ISO/IEC 10646 Standard year and month format: yyymmml 9. compound assignmentIn c99, you can specify an array, structure, or union express

Author: Zhang Yu Source: http://blog.sina.com.cn/u/465bdf0b010002t0 24-hour master of AAC File FormatToday we have a new task to save the RTSP audio stream as a file in AAC format.I have searched the internet for a long time and have not found the AAC file format.Later, I consulted a colleague who specializes in coding and decoding. There may be related information in the ISO MPEG document.It took a long time to find the ISO documentation. ISO is charged and the network is free. Although it is d

. _ Pragma Operator C99 introduces another method for defining compilation commands in a program: _ Pragma operator. The format is as follows: _ Pragma ("directive ") In this example, direve VE is the compilation command to be full. The _ Pragma operator allows compilation commands to be used in macro replacement. C. Internal compilation commands Stdcfp_contract On/Off/Default If it is on, floating-point expressions are treated as independent units in hardware-based processing. The default value

pronunciation is "guh-NEW ".) Linux is widely used as the core GNU operating system. Although these systems are often called "Linux", they should be called GNU/Linux systems strictly. By the beginning of the 1990s S, the GNU project had developed many high-quality free software, including the famous emacs editing system, bash shell program, gcc Compilation Program, and gdb debugging program. These software creates an appropriate environment for the development of Linux operating systems and is