公开(公告)号：US4560981A

公开(公告)日：1985-12-24

申请号：US478180

申请日：1983-03-23

申请人： Ronald M. Jackson ,  Daniel C. Olin ,  Russell Y. Anderson

发明人： Ronald M. Jackson ,  Daniel C. Olin ,  Russell Y. Anderson

IPC分类号： G01R13/28 ,  G01R13/20 ,  G06F11/32 ,  G06F3/14

CPC分类号： G01R13/20 ,  G06F11/322

摘要： Disclosed herein is an apparatus for displaying a logic waveform on a raster scan display device such as a CRT. A part of an input logic signal is delayed for forming a former bit, and the input logic signal acts as a present bit. A memory device stores a special pattern determined in accordance with results of logic operation of the present and former bits. An image dot of the pattern is addressed by the present and former bits and raster line position (number) information, and the output therefrom is applied as an intensity control signal to the display device. Since the memory device does not need FONT information, this invention needs very little software manipulation of data, and the capacity of the memory device is small. In addition, this invention can display glitches and graticule tick marks.

摘要翻译： 这里公开了一种用于在诸如CRT的光栅扫描显示装置上显示逻辑波形的装置。 输入逻辑信号的一部分被延迟以形成前一位，并且输入逻辑信号用作当前位。 存储器件存储根据本前和后位的逻辑运算结果确定的特殊图形。 图案的图像点由当前和前一位和光栅线位置（数量）信息寻址，并且其输出作为强度控制信号被施加到显示装置。 由于存储器件不需要FONT信息，因此本发明对数据的软件操作很少，并且存储器件的容量很小。 此外，本发明可以显示毛刺和刻度标记。

公开(公告)号：US4613856A

公开(公告)日：1986-09-23

申请号：US481557

申请日：1983-04-04

申请人： Daniel C. Olin ,  Russell Y. Anderson ,  Steven C. DenBeste

发明人： Daniel C. Olin ,  Russell Y. Anderson ,  Steven C. DenBeste

IPC分类号： G09G5/30 ,  G09G5/10 ,  G09G5/22 ,  G09G1/00

CPC分类号： G09G5/222

摘要： An electrical circuit is described that requires a reduced number of data bits for character-address and video-mode information by using a predetermined bit combination of the video-mode information as part of the character-address information. Character-address and video-mode information is output from a random access memory (RAM) to a character read only memory (ROM) and a video-mode detection circuit that produces outputs to enable video-mode circuits in the video control circuitry. One output of the video-mode detection circuit is coupled to an address input of the character ROM that has characters divided into two character sets. A predetermined bit combination of the video-mode information produces an output from the video-mode detection circuit that selects one of the character sets while the other bit combinations produce an output from the detection circuit that selects the other character set. In this way, character-address and video-mode information having n data bits can produce character and video-mode outputs that normally require n+1 data bits.

摘要翻译： 描述了通过使用视频模式信息的预定比特组合作为字符地址信息的一部分，需要减少字符地址和视频模式信息的数据比特数的电路。 字符地址和视频模式信息从随机存取存储器（RAM）输出到字符只读存储器（ROM）和视频模式检测电路，其产生输出以使视频控制电路中的视频模式电路能够使用。 视频模式检测电路的一个输出耦合到具有被分成两个字符集的字符的字符ROM的地址输入。 视频模式信息的预定位组合产生视频模式检测电路的输出，其选择字符集中的一个，而其他位组合产生来自选择另一个字符集的检测电路的输出。 以这种方式，具有n个数据位的字符地址和视频模式信息可以产生通常需要n + 1个数据位的字符和视频模式输出。

公开(公告)号：US4747126A

公开(公告)日：1988-05-24

申请号：US833888

申请日：1986-02-27

申请人： William G. Hood ,  Thomas D. Klarquist ,  Kai-Dick Lee ,  Bruce C. Nepple ,  Daniel C. Olin ,  Lawrence B. Park ,  Michael C. Park

发明人： William G. Hood ,  Thomas D. Klarquist ,  Kai-Dick Lee ,  Bruce C. Nepple ,  Daniel C. Olin ,  Lawrence B. Park ,  Michael C. Park

IPC分类号： G11B15/02 ,  G11B27/10 ,  G11B27/11 ,  G11B27/13 ,  G11B27/28 ,  H04M3/533 ,  H04M3/537 ,  H04M1/65

CPC分类号： G11B27/28 ,  G11B15/023 ,  G11B27/107 ,  G11B27/11 ,  G11B27/13 ,  H04M3/533 ,  H04M3/537 ,  G11B2220/65 ,  G11B2220/90

摘要： The present invention is a magnetic tape-based "voice mail" multi-user message system. The system transmits audio prompts to callers to help guide them through the various procedures. The callers respond with Touch-Tone commands. A novel circuit is provided to detect these tone commands without significant interference from the audio prompt signals. This circuit is highly insensitive to deviations in the impedance of the incoming telephone line from its expected value. A circuit is also provided to prevent Touch-Tone commands which are recorded on tape from being re-executed when they are played back from the tape. A single L.E.D. indicator on each recipient's telephone set indicates the status of the system: idle with new message waiting; idle without new message waiting; busy with new message waiting; or busy without new message waiting.

摘要翻译： 本发明是一种基于磁带的“语音邮件”多用户消息系统。 系统向呼叫者发送音频提示，以帮助他们指导各种程序。 来电者使用Touch-Tone命令进行响应。 提供了一种新颖的电路来检测这些音调命令而没有来自音频提示信号的显着干扰。 该电路对输入电话线路的阻抗与其预期值的偏差高度不敏感。 还提供了一种电路，用于防止录制在磁带上的Touch-Tone命令在从磁带播放时重新执行。 一个L.E.D. 每个接收者的电话机上的指示灯指示系统的状态：空闲，新消息等待; 闲置没有新消息等待; 忙于新消息等待; 或忙碌而没有新消息等待。