Search results
Results from the WOW.Com Content Network
For example, some 16-bit CRC schemes swap the bytes of the check value. Omission of the high-order bit of the divisor polynomial: Since the high-order bit is always 1, and since an n -bit CRC must be defined by an ( n + 1 )-bit divisor which overflows an n -bit register , some writers assume that it is unnecessary to mention the divisor's high ...
These inversions are extremely common but not universally performed, even in the case of the CRC-32 or CRC-16-CCITT polynomials. They are almost always included when sending variable-length messages, but often omitted when communicating fixed-length messages, as the problem of added zero bits is less likely to arise.
Catalyst 6500 Series Command Reference, 7.6, for example CPE: Customer premises equipment Telecom Telecom Glossary: CPU: Central processing Unit Microprocessor Wikipedia: CRC: Cyclic redundancy check Link and other layers 24 References here. CRC-16-CCITT: Cyclic redundancy check (X.25, HDLC) Link layers Reference on CRC page. CRT: Cathode Ray Tube
This is a practical example for the CRC-32 variant of CRC. [ 5 ] An alternate source is the W3C webpage on PNG, which includes an appendix with a short and simple table-driven implementation in C of CRC-32. [ 4 ]
It also defines the ITU-T standard CRC-32 polynomial as x 32 +x 26 +x 23 +x 22 +x 16 +x 12 +x 11 +x 10 +x 8 +x 7 +x 5 +x 4 +x 2 +x+1, and includes the LAPM framing protocol. V.42bis , also an adaptive data compression standard, is based on the Lempel Ziv dynamic dictionary approach, and may go to "transparent mode," in which data is transmitted ...
One example is the Linux kernel's EDAC subsystem (previously known as Bluesmoke), which collects the data from error-checking-enabled components inside a computer system; besides collecting and reporting back the events related to ECC memory, it also supports other checksumming errors, including those detected on the PCI bus.
Group 4 compression is available in many proprietary image file formats as well as standardized formats such as TIFF, CALS, CIT (Intergraph Raster Type 24) and the PDF document format. G4 offers a small improvement over G3-2D by removing the end-of-line (EOL) codes. G3 and G4 compression both treat an image as a series of horizontal black ...
The CCITT Chinese Primary Set [2] is a multi-byte graphic character set for Chinese communications created for the Consultative Committee on International Telephone and Telegraph (CCITT) in 1992. [3] It is defined in ITU T.101 , annex C, which codifies Data Syntax 2 Videotex . [ 2 ]