公开(公告)号：US4358275A

公开(公告)日：1982-11-09

申请号：US200280

申请日：1980-10-24

申请人： Aram C. Paraghamian ,  Glen F. Long

发明人： Aram C. Paraghamian ,  Glen F. Long

IPC分类号： A63B69/00 ,  G09B19/00

CPC分类号： A63B69/0053 ,  A63B2208/12 ,  Y10S482/909

摘要： A means for presenting individual instructions from a group of predetermined instructions in a random fashion is provided by a random word generator and a binary counter which cooperate to address a programmable read-only memory which sequentially provides character forming potentials to a plurality of fluorescent character display indicators so that each indicator receives the same character forming potentials at each step in the sequence in combination with a binary decoder responsive to the binary counter for enabling only one of the indicators for each step in the sequence.

摘要翻译： 用于以随机方式从一组预定指令呈现各个指令的装置由随机字生成器和二进制计数器提供，该随机字生成器和二进制计数器协作来寻址可编程只读存储器，该可编程只读存储器顺序地向多个荧光字符显示器提供字符形成电位 指示符，使得每个指示符在序列中的每个步骤处与二进制解码器结合响应于二进制计数器的每个步骤接收到相同的字符形成电位，以使得仅能够使序列中的每个步骤的指示符中的一个指示符。