Checksum generator for variable-length data
US7941727B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6508
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
One embodiment relates to a method of generating an N-bit checksum for variable-length data. An N-bit data word of the variable-length data is received by data input circuitry, and an N-bit input checksum generator is used to calculate an updated value of the N-bit checksum for N-bit data words. A plurality of smaller checksum generators and the N-bit input checksum generator are each used to calculate a last value of the N-bit checksum for the last data word of the variable-length data. Control signals are used to controllably select the last value of the N-bit checksum from outputs of said checksum generators. Other embodiments and features are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.