JPH039027U

JPH039027U -

Info

Publication number: JPH039027U
Application number: JP6334389U
Authority: JP
Priority date: 1989-05-31
Filing date: 1989-05-31
Publication date: 1991-01-29

Description

[Brief explanation of the drawing]

第１図は本考案に係る波形データ発生回路の一
実施例を示す構成ブロツク図、第２図は第１図の
演算回路５の構成を示す構成ブロツク図、第３図
は第２図のマルチプレクサ５１の接続を示す図、
第４図は第１図装置の動作を示す特性曲線図、第
５図および第６図は演算回路５の動作を示す表、
第７図は波形データ発生回路の従来例を示す構成
ブロツク図、第８図は第７図装置のＲＯＭ２に格
納されている正弦波データを示す図である。１……位相データ発生回路、２ａ……メモリ、
５……演算回路。 FIG. 1 is a configuration block diagram showing an embodiment of the waveform data generation circuit according to the present invention, FIG. 2 is a configuration block diagram showing the configuration of the arithmetic circuit 5 of FIG. 1, and FIG. 3 is a configuration block diagram of the multiplexer of FIG. 2. A diagram showing the connections of 51,
4 is a characteristic curve diagram showing the operation of the device shown in FIG. 1; FIGS. 5 and 6 are tables showing the operation of the arithmetic circuit 5;
FIG. 7 is a block diagram showing a conventional example of a waveform data generation circuit, and FIG. 8 is a diagram showing sine wave data stored in the ROM 2 of the device shown in FIG. 1... Phase data generation circuit, 2a... Memory,
5... Arithmetic circuit.

Claims

[Scope of utility model registration request]

A waveform data generation circuit that outputs waveform data in response to phase data includes a phase data generation circuit that generates phase data, a memory that is addressed by the output of the phase data generation circuit, and a memory that is addressed by the output of the phase data generation circuit. an arithmetic circuit that calculates polygonal line approximation data of the waveform data in response to the output and adds the output to the data read from the memory, and the memory stores the waveform data and the polygonal line approximation data at an address corresponding to the phase data A waveform data generation circuit characterized in that it is configured to store difference data of.