Jordan and Hamburg
Waveform data compression apparatus
 In an APC system waveform dam compression apparatus which generates an optimum prediction coefficient utilizing a block calculation process in a first mode and generating prediction data utilizing a block calculation process based on this optimum prediction coefficient in a second mode with respect to a fixed number of blocked waveform data, to make possible use of suitable data in the first prediction calculation process of each block calculation process. A data holding section for holding data corresponding to at least final first waveform data to be used in a final prediction calculation process of a block calculation process in a second mode, and a first selection section for using data held in the data holding section in place of data memorized in a second delay section in each first prediction calculation process of each block calculation process of the next block are provided in an operating circuit. 
Nippon Precision Circuits Inc. Matsushita Electric Industrial Co., Ltd.
G G
G10L G06T
inventional inventional
Masataka Masayoshi Akira Kazuhiko
Saito Nakamura Toyama Hakuta