公开(公告)号：US4623984A

公开(公告)日：1986-11-18

申请号：US763325

申请日：1985-08-07

Applicant: Hidemi Yokokawa ,  Rikichi Murooka ,  Miyuki Fukuzawa ,  Machiko Tomioka

Inventor： Hidemi Yokokawa ,  Rikichi Murooka ,  Miyuki Fukuzawa ,  Machiko Tomioka

IPC: G01R31/3177 ,  G06F11/25 ,  G06F3/153

CPC classification number: G01R31/3177 ,  G06F11/25

Abstract: A logic analyzer is disclosed which displays at least an input logic signal on a cathode ray tube, controls a cursor position on the cathode ray tube and obtains a relationship between a predetermined phenomenon included in the input logic signal and the cursor position. In a search mode, the predetermined phenomenon is a search word or a glitch. In a compare mode, the predetermined phenomenon is a reference logic signal.

Abstract translation: 公开了一种逻辑分析仪，其在阴极射线管上至少显示输入逻辑信号，控制阴极射线管上的光标位置，并获得输入逻辑信号中包含的预定现象与光标位置之间的关系。 在搜索模式中，预定的现象是搜索词或毛刺。 在比较模式中，预定现象是参考逻辑信号。

公开(公告)号：US4608652A

公开(公告)日：1986-08-26

申请号：US448544

申请日：1982-12-10

Applicant: Hidemi Yokokawa ,  Miyuki Fukuzawa

Inventor： Hidemi Yokokawa ,  Miyuki Fukuzawa

IPC: G01D7/00 ,  G01R13/28 ,  H03M7/30 ,  G06F5/00

CPC classification number: H03M7/30

Abstract: A digital logic signal characterized by a bit sequence is displayed on a raster scan type screen in compressed form. The bit sequence is divided into N+1 bit segments and each bit of each segment, excluding the first bit of each segment, is compared to its preceding bit on a bit-by-bit, segment-by-segment basis. If a bit matches its preceding bit, a bit matching the preceding bit is generated. If a bit does not match its preceding bit, a bit opposite in state to the last bit produced is generated. The generated bits thus comprise a compressed sequence of N bit segments each corresponding to one N+1 bit segment of the original data sequence. A compressed waveform based on the generated sequence is then displayed.

Abstract translation: 以比特序列为特征的数字逻辑信号以压缩形式显示在光栅扫描型屏幕上。 比特序列被划分为N + 1比特段，并且每个片段的每个比特的每个比特，除了每个分段的第一比特之外，还逐个比特地逐段比较其前一比特。 如果某位与其前一位匹配，则生成与前一位匹配的位。 如果某位与之前的位不匹配，则生成与产生的最后一位相反的位。 所生成的比特因此包括每个对应于原始数据序列的一个N + 1比特段的N个比特段的压缩序列。 然后显示基于生成的序列的压缩波形。