Fujitsu Corporation

Taro Hagiya

Yasuhiro Watanabe

Xuan Fu

Hirofumi Nagaoka

In order to enable a rewrite of stored data to be omitted and to reduce a processing time of error concealment even if an error is detected in a process for sequentially storing variable-length data in a memory and the rewrite of the stored data is necessary, variable-length data from which an error is not detected is sequentially stored at and after a predetermined position in the memory, and error information that includes a restoration address that corresponds to an area in which variable-length data from which an error is detected is to be stored and that specifies variable-length data stored earliest in the memory from among data to be replaced with error concealment data is stored at a position preceding the predetermined position, when the error is detected.

Variable-length data storing method and variable-length data storing device

A variable length decoder that decodes a variable length code to output data including a run and a level, the variable length decoder includes a memory that stores an output format of a run and a level according to a prefix for specifying an area which is generated by dividing a run-level plane based on the run; a extraction circuit that extracts the prefix, run computation data, and level computation data from the variable length code; and an output circuit that accesses the memory based on the prefix and outputs the data based on the run computation data and the level computation data.

Growing community of inventors

Nerima, Japan

Taro Hagiya