Patent · US Expired

Variable length code parallel decoding apparatus and method

US5032838A · kind A · utility

28Cited by
6References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 26, 1989
Grant dateJul 16, 1991
Priority date
Expiry dateOct 26, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M7/425
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

When a variable length code requires two cycles in decoding, portions of code bit strings serving as objects to be decoded in first and second cycles of the variable length code are caused to overlap each other. In the first cycle, a non-overlapping portion is determined as a decoded portion. A length of a code bit string actually decoded in the first cycle is determined as a length of the code bit string serving as the object to be decoded in the first cycle excluding the length of the overlapping portion so as to determine a start position of the code bit string serving as the object to be decoded in the second cycle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.