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1. 发明授权

US5993089A 8-bit binary code for use as an 8-dot braille arrangement and data entry system and method for 8-key chordic binary keyboards 失效
标题翻译：用作8点盲文排列的8位二进制代码和用于8键和弦二进制键盘的数据输入系统和方法
公开(公告)号：US5993089A
公开(公告)日：1999-11-30
申请号：US792798
申请日：1997-02-03
申请人： James William Burrell, IV
发明人： James William Burrell, IV
IPC分类号： B41J5/06 , G09B21/00 , H03K17/94
CPC分类号： G09B21/025 , B41J5/06 , G09B21/002
摘要： An alphanumeric data entry system for chordic keyboards permits the entry of vowels with the thumb and digits of the left hand and the entry of consonants with the thumb and digits of the right hand in combination with vowel chords from the left hand. Only the thumb, index, middle and ring digits of the left and right hands, respectively, are necessary for manipulation of 2 four-key sets. The keyboard can either be a conventional side-by-side keyboard or, alternatively, an 8 dot braille keyboard in which the two sets are arranged in two rows in a substantially parallel relationship to each other. The number mode is initiated by depressing all four digits of the right hand and then entering numbers beginning with the ring digit of the left hand as the lowest integer and proceeding in a reverse binary fashion from left to right with the numbers 0 through 9 entered by the left hand. The system can switch functions by depressing the index, middle and ring digits of the right hand and then entering the desired function code with the digits of the left hand. Some of the other functions possible are common math operators, containment chords, movement chords, operating chords, monetary and graphic chords, foreign language chords, etc. Because of the left to right nature of the data entry, the system is relatively easy to learn and fast to use. It is especially suited for handicapped and sight disabled individuals as a substitute for braille.
摘要翻译：用于和弦键盘的字母数字输入系统允许用左手的拇指和数字输入元音，并且用右手的拇指和数字与左手的元音和弦组合输入辅音。分别只有左手和右手的拇指，索引，中间和中间数字都是操纵2个四键组所必需的。键盘可以是常规的并排键盘，或者也可以是8点盲文键盘，其中两组以彼此基本上平行的关系布置成两行。数字模式通过按下右手的所有四位数字开始，然后从左手的环形数字开始输入数字为最小的整数，并以从左到右的反向二进制方式进行，数字0到9由左手系统可以通过按下右手的索引，中间和右边的数字来切换功能，然后用左手的数字输入所需的功能代码。其他一些功能可能是常用的数学运算符，遏制和弦，运动和弦，操作和弦，货币和图形和弦，外语和弦等。由于数据输入的左到右性质，系统相对容易学习并快速使用。它特别适用于残疾人和视力残疾人作为盲文的替代品。

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