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To compute an n-bit binary CRC, line the bits representing the input in a row, and position the (n + 1)-bit pattern representing the CRC's divisor (called a "polynomial") underneath the left end of the row. In this example, we shall encode 14 bits of message with a 3-bit CRC, with a polynomial x 3 + x + 1.
If the receiver checks the CRC by full-length division, the remainder because the CRC of a full codeword that already includes a CRC is no longer zero. Instead, it is a fixed non-zero pattern, the CRC of the inversion pattern of ones.
One of the most commonly encountered CRC polynomials is known as CRC-32, used by (among others) Ethernet, FDDI, ZIP and other archive formats, and PNG image format. Its polynomial can be written msbit-first as 0x04C11DB7, or lsbit-first as 0xEDB88320.
C&D Construction and demolition (e.g. C&D waste) CDG(CPL) Carriage of Dangerous Goods by Road and Rail (Classification, Packaging and Labelling) Regulations 1994; CEC Commission of the European Communities; CEMP Construction Environmental Management Plan; CEN Comite Europeen de Normalisation (European Committee for Standardization)
CRC – CONUS Replacement Center (a military processing center at Fort Moore, Georgia, U.S.) CSM – Command Sergeant Major (U.S. Army E-9 highest Army enlisted rank)) CSAR – Combat Search And Rescue; CT – Counter-terrorism Team; CTA – Common Table of Allowances; CTR – Close Target Reconnaissance; CUB – Commander Update Brief
Same definition as the bolt circle diameter BHCS: button head cap screw: Like an SHCS but with a button head. BHN: Brinell hardness number: BoM or BOM: bill of materials: Also called a list of materials (LM or L/M). Overlaps a lot in concept with a parts list (PL or P/L). There is no consistently enforced distinction between an L/M, a BoM, or a ...
CRC-Evans provides pipeline construction equipment, automatic welding systems, managed subsea services, field joint coating, weighting systems and non-destructive testing. Other engineered equipment includes laybarge equipment, conveying systems and concrete weight coating plants. In 2010, CRC-Evans became a Stanley Black & Decker company.
The CRC is computed using the polynomial x 6 +x+1 over all 24×193 = 4632 bits (framing and data) of the previous superframe, but with its framing bits forced to 1 for the purpose of CRC computation. [4] The purpose of this small CRC is not to take any immediate action, but to keep statistics on the performance of the link.