JPS623075U

JPS623075U -

Info

Publication number: JPS623075U
Application number: JP9552785U
Authority: JP
Priority date: 1985-06-24
Filing date: 1985-06-24
Publication date: 1987-01-09

Description

[Brief explanation of the drawing]

第１図はこの考案による波形表示装置の一例を
示すブロツク図、第２図は従来の波形表示装置を
示すブロツク図である。１１：波形発生源、１２：ＡＤ変換器、１３：
サンプリングクロツク発生器、１４：制御部、１
５：マルチプレクサ、１６：波形メモリ、１７：
クロツク発生器、１８：カウンタ、１９，２６：
切替回路、２１，２７：ＤＡ変換器、２２：ラン
ダム走査形表示器、２４：表示面、２８：表示波
形、２９：表示マーカ、３２：Ｘ位置ラツチ、３
３：Ｙ位置ラツチ、３５：一致検出器。 FIG. 1 is a block diagram showing an example of a waveform display device according to this invention, and FIG. 2 is a block diagram showing a conventional waveform display device. 11: Waveform generation source, 12: AD converter, 13:
Sampling clock generator, 14: Control section, 1
5: Multiplexer, 16: Waveform memory, 17:
Clock generator, 18: Counter, 19, 26:
Switching circuit, 21, 27: DA converter, 22: Random scanning display, 24: Display surface, 28: Display waveform, 29: Display marker, 32: X position latch, 3
3: Y position latch, 35: Coincidence detector.

Claims

[Claim for Utility Model Registration] Waveform data is written in a waveform memory, and the memory addresses to which the waveform data is written correspond to positions on the baseline of the display surface of the random scanning display, The waveform memory is read, and the read waveform data is converted into an analog signal by a first DA converter and supplied to the display as a deflection signal in a direction perpendicular to the base line, and the readout address of the waveform memory is The waveform data that is converted into an analog signal by a 2DA converter and supplied to the display as a deflection signal in a direction parallel to the base line and read from the waveform memory is displayed as a waveform on the display surface of the display, and the waveform is The contents of the Y position latch and the X position latch are switched in a time-sharing manner with the reading of the memory and are supplied to the first and second DA converters, respectively, and a marker is displayed on the display surface, and the input means is operated. In the waveform display device, a corresponding value is stored in the X-position latch by a control unit, a coincidence detector detecting coincidence between the contents of the X-position latch and an address at the time of writing into the waveform memory; 2. A waveform display device comprising means for storing waveform data to be written into the waveform memory at that time in the Y position latch based on the detection output of the waveform display device.