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1. 发明授权

US5134577A Computer with algebraic expression memory 失效
标题翻译：具有代数表达式记忆的计算机
公开(公告)号：US5134577A
公开(公告)日：1992-07-28
申请号：US776877
申请日：1991-10-16
申请人： Fumiaki Kawawaki
发明人： Fumiaki Kawawaki
IPC分类号： G06F15/02
CPC分类号： G06F15/0225
摘要： A computer having an algebraic expression reserve mode and a computation mode, and including an input key for commanding the execution of computations, the computer further including: a memory which stores an algebraic expression, if the input key is operated when the algebraic expression reserve mode has been set and the algebraic expression has not yet been stored; and a processor which conducts computations of an algebraic expression, if the input key is operated when the algebraic expression mode has been set and the algebraic expression has been stored.
摘要翻译：一种具有代数表达式保留模式和计算模式的计算机，并且包括用于命令执行计算的输入键，所述计算机还包括：存储器，其存储代数表达式，如果在代数表达式保留模式下操作输入键已经设置，代数表达式尚未存储; 以及如果在已经设置代数表达式模式并且已经存储代数表达式的情况下操作输入键，则进行代数表达式的计算的处理器。

2. 发明授权

US5079732A Multi-functional electronic desk calculator 失效
标题翻译：多功能电子桌面计算器
公开(公告)号：US5079732A
公开(公告)日：1992-01-07
申请号：US513809
申请日：1990-04-24
申请人： Hideyasu Koumo , Fumiaki Kawawaki , Noboru Akizuki
发明人： Hideyasu Koumo , Fumiaki Kawawaki , Noboru Akizuki
IPC分类号： G06F15/02
CPC分类号： G06F15/0258
摘要： A multi-functional electronic desk calculator has numeral value keys for inputting a numeral value and a decimal point key for inputting a decimal point. The calculator also has a device for detecting depression of the numeral value keys to produce a first signal representative of being in a numeral value inputting mode, a device for detecting depression of the decimal point key to produce a second signal representative of input of the decimal point, a predetermined single key, and a device for operating the predetermined single key as a key used for inputting hexagesimal number when the first signal is produced and the second signal is not produced, and for operating the predetermined single key as a conversion key for performing conversion from decimal number to hexagesimal number when the first signal is not produced or when the second signal is produced.
摘要翻译：多功能电子桌面计算器具有用于输入数字值的数字键和用于输入小数点的小数点键。计算器还具有用于检测数字键的按下以产生代表数字输入模式的第一信号的装置，用于检测小数点键的按下以产生表示小数点的输入的第二信号的装置点，预定单键，以及用于在产生第一信号并且不产生第二信号时将预定单键操作为用于输入六进制数的键的装置，并且用于将预定单键作为转换键操作当不产生第一信号或产生第二信号时，执行从十进制数转换为六进制数。

3. 发明授权

US5155815A Computer in which data home is changeable in any mode 失效
标题翻译：数据家庭可以在任何模式下更换的计算机
公开(公告)号：US5155815A
公开(公告)日：1992-10-13
申请号：US405688
申请日：1989-09-11
申请人： Fumiaki Kawawaki , Noboru Akizuki , Taizou Nishida
发明人： Fumiaki Kawawaki , Noboru Akizuki , Taizou Nishida
IPC分类号： G06F15/02
CPC分类号： G06F15/0283
摘要： A computer or calculator which can use a retrieved data in any position of an expression. The computer has a calculation mode and a data retrieval mode, and comprises an X register for an input data, and a Y register for an operand. In the computer, the contents of the X register is loaded into the Y register when a predetermined key operation is conducted in the calculation mode, and then the mode of the computer is set to the data retrieval mode. A retrieved data is loaded into the X register, and the mode of the computer returns to the calculation mode.

4. 发明授权

US5065359A Desk top calculator with access sequence control system for various constants 失效
标题翻译：具有不同常数的访问顺序控制系统的台式计算器
公开(公告)号：US5065359A
公开(公告)日：1991-11-12
申请号：US436905
申请日：1989-11-15
申请人： Hideyasu Koumo , Fumiaki Kawawaki
发明人： Hideyasu Koumo , Fumiaki Kawawaki
IPC分类号： G06F3/023 , G06F3/048 , G06F15/02
CPC分类号： G06F3/0489 , G06F15/0225
摘要： The desk-top calculator in accordance with the present invention comprises a constant access key, a ROM and a control unit. The ROM is arranged such that different types of constants are anteriorly stored therein and the constants are accessed through the operation of the constant access key. The control unit is arranged such that, as well as accessing successively the different types of constants stored in the ROM each time the constant access key is operated consecutively, after one of the contants is accessed through the operation of the constant access key, when another key is operated and the constant access key operated again thereafter, the control unit accesses the constant previously accessed in the first place.According to the arrangement described above, the operation of such a desk-top calculator is simplified and its operation efficiency is sharply improved.

5. 发明授权

US5371694A Scientific calculator 失效
标题翻译：科学计算器
公开(公告)号：US5371694A
公开(公告)日：1994-12-06
申请号：US52749
申请日：1993-04-27
申请人： Fumiaki Kawawaki , Hideyasu Koumo
发明人： Fumiaki Kawawaki , Hideyasu Koumo
IPC分类号： G06F15/02 , G06F3/00 , G06F7/00
CPC分类号： G06F15/0258
摘要： A scientific calculator includes a conversion table memory for storing as a conversion table a combination of each kind of conversion equation and a selection number, a key board providing numeric keys and a specific key, a numeric value memory for storing the entered numeric values, a mode setting section for setting the current mode to a conversion mode, a designating section for designating the selection number during conversion mode, reading section for reading from the conversion table the conversion equation corresponding to the designated selection number, a conversion section for converting the numeric value stored in the numeric value memory from one unit to another on the basis of the read conversion equation, and a display section for displaying the converted numeric value.
摘要翻译：科学计算器包括转换表存储器，用于存储作为转换表的各种转换方程和选择号的组合，提供数字键的键板和特定键，用于存储输入的数值的数值存储器，模式设定部分，用于将当前模式设置为转换模式，指定部分，用于在转换模式期间指定选择号码;读取部分，用于从转换表读取与指定选择号码相对应的转换方程;转换部分，基于读取转换方程从一个单元存储在数值存储器中的值;以及显示部分，用于显示转换的数值。

6. 发明授权

US5335193A Scientific calculator with coordinate transformation and single line numeric value display 失效
标题翻译：具有坐标变换和单线数值显示的科学计算器
公开(公告)号：US5335193A
公开(公告)日：1994-08-02
申请号：US8328
申请日：1993-01-25
申请人： Fumiaki Kawawaki
发明人： Fumiaki Kawawaki
IPC分类号： G06F3/14 , G06F3/048 , G06F7/548 , G06F15/02 , G06F3/00
CPC分类号： G06F15/0225
摘要： A scientific calculator capable of function calculation including: an input device for entering a numerical value and a functional formula; a calculation device for calculating two calculation result values based on the numerical value and the functional formula; a storage device for storing the numerical value entered and the calculation result values; a numerical value display unit for displaying one numerical value or one calculation result value; a guidance display unit for displaying a character and a symbol representing a calculation process and the meaning of the numerical value; a symbol display unit for displaying two types of display symbols indicating that, upon display of one of two calculation result values at the numerical value display unit, the other calculation result value is stored in the storage device; and retrieval device for retrieving, upon display of one of .the two types of display symbols, the other numerical value or the calculation result value from the storage device in response to the replacing command, thereby replacing the numerical value or the calculation result value thus retrieved from the storage device with the numerical value or the calculation result value displayed at the moment on the numerical value display units.
摘要翻译：一种能够进行功能计算的科学计算器，包括：用于输入数值的输入装置和功能式; 计算装置，用于基于数值和函数式计算两个计算结果值; 存储装置，用于存储输入的数值和计算结果值; 用于显示一个数值或一个计算结果值的数值显示单元; 用于显示字符的引导显示单元和表示计算处理的符号和数值的含义; 符号显示单元，用于显示两种类型的显示符号，指示在数值显示单元上显示两个计算结果值中的一个时，另一计算结果值被存储在存储装置中; 以及检索装置，用于响应于所述替换命令，从所述存储装置显示所述两种类型的显示符号中的一个，所述另一个数值或所述计算结果值，从而替换所述数值或所述计算结果值从数字值显示单元上显示当前显示的数值或计算结果值从存储设备检索。

7. 发明授权

US5253191A Electronic computer capable of entering unary operator using prefix notation 失效
标题翻译：电子计算机能够使用前缀符号输入一元运算符
公开(公告)号：US5253191A
公开(公告)日：1993-10-12
申请号：US816977
申请日：1992-01-07
申请人： Hideyasu Koumo , Fumiaki Kawawaki
发明人： Hideyasu Koumo , Fumiaki Kawawaki
IPC分类号： G06F7/00 , G06F15/02 , G06F3/00
CPC分类号： G06F15/02
摘要： An electronic computer of the invention adopts prefix unary operators, so that key operation for entering arithmetic or mathematical expressions is performed in the normal order of the operands and operators of the expression, and moreover the last calculation result can be directly used as the operand for the prefix unary operator. Therefore, sequential calculations can be performed step by step while checking the intermediate results by simple key operation.
摘要翻译：本发明的电子计算机采用前缀一元运算符，按照表达式的运算符和运算符的正常顺序进行算术运算或数学表达式的键操作，最后计算结果可直接用作运算符前缀一元运算符。因此，通过简单的键操作检查中间结果，可以逐步执行顺序计算。

8. 发明授权

US5249147A Electronic apparatus provided with device of calculating complex numbers 失效
标题翻译：具有计算复数的装置的电子设备
公开(公告)号：US5249147A
公开(公告)日：1993-09-28
申请号：US8704
申请日：1993-01-25
申请人： Hideyasu Koumo , Fumiaki Kawawaki
发明人： Hideyasu Koumo , Fumiaki Kawawaki
IPC分类号： G06F15/02
CPC分类号： G06F15/0258
摘要： An electronic apparatus provided with a device of calculating complex numbers includes a keyboard for entering calculation data including a value and an imaginary number unit i, an LCD device for displaying a result of performed calculation of the complex numbers consisting of a real number and an imaginary number unit i, and a processing unit. The processing unit has a judging part for judging whether or not a value is entered immediately before or after the imaginary number unit i, first calculating part for calculating the complex numbers in accordance with a predetermined priority in calculation by substituting 1i with the imaginary number unit i while inserting a multiplication code between the entered value and the imaginary number unit i upon detecting the entered value is positioned before the entered imaginary number unit i, and second calculating part for calculating a portion having the imaginary number unit i as a function followed by an argument upon detecting calculation data that a value is entered immediately after the imaginary number unit i.
摘要翻译：具有计算复数的装置的电子设备包括用于输入包括值和虚数单元i的计算数据的键盘，用于显示由实数和虚构构成的复数的计算结果的LCD装置号单元i和处理单元。处理单元具有用于判断在虚数单元i之前或之后是否输入值的判断部分，计算中根据预定优先级计算复数的第一计算部分，用虚数单位在检测到输入的值时，在输入的值和虚数单元i之间插入乘法码位于输入的虚数单元i之前，而第二计算部分用于计算具有虚数单元i的部分，检测计算数据后的参数，即在虚数单元i之后立即输入值。

9. 发明授权

US5241489A Electronic computer with fraction and exponent display 失效
$Electronic computer with fraction and exponent display$
标题翻译：电子计算机与分配和显示
公开(公告)号：US5241489A
公开(公告)日：1993-08-31
申请号：US589656
申请日：1990-09-28
申请人： Hideyasu Koumo , Fumiaki Kawawaki , Noboru Akizuki
发明人： Hideyasu Koumo , Fumiaki Kawawaki , Noboru Akizuki
IPC分类号： G06F15/02
CPC分类号： G06F15/0225
摘要： A portable electronic computer for conducting fraction calculations has a display including a first multiple-digit display area for displaying the numerator of a fraction, and a second multiple-digit display area for displaying the denominator of the fraction. The numbers of digits of the numerator and denominator of a fraction to be displayed are obtained. The number of digits of the numerator is compared with the number of digits of the denominator. The difference between the number of digits of the numerator and the number of digits of the denominator is calculated. When the number of digits of the numerator is smaller than the number of digits of the denominator, the numerator is displayed on the first display area with its position shifted to an upper digit place according to the difference. When the number of digits of the denominator is smaller than the number of digits of the numerator, the denominator is displayed on the second display area with its position shifted to an upper digit place according to the difference.

10. 发明授权

US5109518A Calculator with single-key cursor-left-shift clear function and single-key cursor-right-shift clear function 失效
标题翻译：计算器具有单键光标左移清除功能和单键光标右移清除功能
公开(公告)号：US5109518A
公开(公告)日：1992-04-28
申请号：US587568
申请日：1990-09-24
申请人： Fumiaki Kawawaki , Noboru Akizuki
发明人： Fumiaki Kawawaki , Noboru Akizuki
IPC分类号： G06F3/02 , G06F15/02
CPC分类号： G06F15/0225
摘要： A calculator which can display not only numerical digits but also arithmetic operational signs and functional symbols. A display portion of the calculator has a numerical value display portion on its lower side and an expression display portion on its upper side, wherein a cursor appears only in the expression display portion. Any digit inputted from numerical keys is first displayed at the numerical value display portion, and such a digit is inputted into the expression display portion when a key for giving instructions to perform an operation is depressed. A CPU clears all of input numerical digits displayed at the numerical value display portion and shifts a cursor back to an end of a mathematical expression displayed at the expression display portion when a cursor-left-shift is operated. When a cursor-right-shift key is operated, the CPU deletes a digit located at the lowest position of the numerical value display portion. In short, duration of input digits on display at the numerical value display portion can be done easily and promptly only by operating the cursor-right-shift key or the cursor-left-shift key.
摘要翻译：一个不仅可以显示数字数字，还可以显示算术运算符号和功能符号的计算器。计算器的显示部分在其下侧具有数值显示部分和其上侧上的表情显示部分，其中光标仅出现在表情显示部分中。在数值显示部分首先显示从数字键输入的任何数字，当按下用于执行操作的指令的键时，将这样的数字输入表达式显示部分。当操作光标左移时，CPU清除在数值显示部分处显示的所有输入数字，并将光标移回到在表情显示部分显示的数学表达式的结尾。当操作光标右移键时，CPU删除位于数值显示部分的最下位置的位。简而言之，仅通过操作光标右移键或光标左移键可以容易且及时地在数值显示部分显示的输入数字的持续时间。

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