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Title:
CORRELATIVE FUNCTION CALCULATOR
Document Type and Number:
Japanese Patent JPS59113500
Kind Code:
A
Abstract:
A correlation function computing device capable of computing a selfcorrelation function or the like is constructed to comprise a window function memorizing circuit, an A/D converting circuit for converting time series of a voice signal into digital values, a multiplier for calculating products of the window functions and the digitalized time series of the voice signal and also products required for the computation of the correlation function, a memory circuit for storing the products of the window functions and the digitalized time series of the voice signal delivered from the multiplier, a selector circuit for transferring data supplied to the multiplier, an adder for obtaining a product-sum in a divided manner, a memory circuit of a first-in and first-out type for storing the product-sum dividedly obtained in the adder, and a control circuit for controlling all of the aforementioned circuits.

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Inventors:
IWAHASHI HIROYUKI
NISHIOKA YOSHIKI
Application Number:
JP22475482A
Publication Date:
June 30, 1984
Filing Date:
December 20, 1982
Export Citation:
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Assignee:
DENSHI KEISANKI KIPPON GIJUTSU
International Classes:
G10L15/02; G06F17/15; G10L15/00; (IPC1-7): G06F15/336; G10L1/00
Domestic Patent References:
JPS56129972A1981-10-12
JPS5782898A1982-05-24
Attorney, Agent or Firm:
Takeshi Sugiyama



 
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