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11. 发明授权

US4125901A Electronic calculator or microprocessor having a multi-input arithmetic unit 失效
标题翻译：具有多输入算术单元的电子计算器或微处理器
公开(公告)号：US4125901A
公开(公告)日：1978-11-14
申请号：US736057
申请日：1976-10-27
申请人： Thomas E. Merrow , Stephen P. Hamilton , Larry L. Miles , Charles P. Grant, Jr., deceased
发明人： Thomas E. Merrow , Stephen P. Hamilton , Larry L. Miles , Charles P. Grant, Jr., deceased
IPC分类号： G06F9/30 , G06F7/48
CPC分类号： G06F9/30134
摘要： An electronic calculator or microprocessor system of the type preferably having keyboard input and a visual display is implemented with a semiconductor chip having a arithmetic unit and memory system. The arithmetic unit and memory system include a plurality of operational registers and an arithmetic unit having two inputs and an output. A plurality of operational registers selector gates interconnect the operational registers and arithmetic unit for connecting any selected two of the plurality of operational registers to the inputs of the arithmetic unit. The plurality of operation register selector gates preferably comprise individual MOS transfer gates.
摘要翻译：具有键盘输入和视觉显示的类型的电子计算器或微处理器系统由具有运算单元和存储器系统的半导体芯片实现。算术单元和存储器系统包括多个操作寄存器和具有两个输入和一个输出的算术单元。多个操作寄存器选择器门互连操作寄存器和运算单元，用于将多个操作寄存器中的所选择的两个连接到运算单元的输入端。多个操作寄存器选择器门优选地包括单独的MOS传输门。

12. 发明授权

US4107781A Electronic calculator or microprocessor with indirect addressing 失效
标题翻译：电子计算器或具有间接寻址的微处理器
公开(公告)号：US4107781A
公开(公告)日：1978-08-15
申请号：US736001
申请日：1976-10-27
申请人： Johnny M. Barrett , Stephen P. Hamilton
发明人： Johnny M. Barrett , Stephen P. Hamilton
IPC分类号： G06F9/32 , G06F9/20
CPC分类号： G06F9/324 , G06F9/321 , G06F9/322 , G06F9/325
摘要： An electronic calculator or microprocessor system of a type preferably having keyboard input and the visual display is implemented with a semiconductor chip having an arithmetic unit, an address register responsive to the input, an instruction word memory for storing a number of instruction words and addressable in response to the address stored in the address register and an, instruction word decoder circuit for decoding instruction words outputted from the instruction word memory and for controlling the arithmetic unit in response thereto. An indirect addressing system includes an auxiliary register coupled to the output of the arithmetic unit for storing at least a portion of a word of numeric data outputted by the arithmetic unit and a branch logic system responsive to the decoding of a particular instruction word by the instruction word decoder logic for causing the address register to branch to a location defined by the contents of the auxiliary register.
摘要翻译：优选地具有键盘输入和视觉显示的类型的电子计算器或微处理器系统利用具有运算单元的半导体芯片，响应于输入的地址寄存器来实现，指令字存储器用于存储多个指令字并且可寻址对存储在地址寄存器中的地址的响应;以及指令字解码器电路，用于对从指令字存储器输出的指令字进行解码，并响应于此控制算术单元。间接寻址系统包括耦合到运算单元的输出的辅助寄存器，用于存储由运算单元输出的数字数据的字的至少一部分，以及分支逻辑系统，其响应于指令对特定指令字的解码字解码器逻辑，用于使地址寄存器分支到由辅助寄存器的内容定义的位置。

13. 发明授权

US4038535A Calculator-print cradle system 失效
标题翻译：计算机打印系统
公开(公告)号：US4038535A
公开(公告)日：1977-07-26
申请号：US646463
申请日：1976-01-05
申请人： Bruce E. Aldridge , Michael J. Cochran , Lee G. Kitchens , Robert R. Kressler , Stephen P. Hamilton
发明人： Bruce E. Aldridge , Michael J. Cochran , Lee G. Kitchens , Robert R. Kressler , Stephen P. Hamilton
IPC分类号： G06F15/02
CPC分类号： G06F15/0233
摘要： This invention relates to enhancement of calculator versatility through connections provided in a calculator cradle leading to a printing mechanism therein when a calculator is nested in the cradle. In a more specific aspect, the invention relates to the communication between a calculator and a printer module which nests the calculator and responds to instructions and data flow from the calculator to print selected calculator information.

14. 发明授权

US4006455A Error correction system in a programmable calculator 失效
标题翻译：可编程计算器中的纠错系统
公开(公告)号：US4006455A
公开(公告)日：1977-02-01
申请号：US622288
申请日：1975-10-10
申请人： Stephen P. Hamilton
发明人： Stephen P. Hamilton
IPC分类号： G06F11/16 , G11B20/10 , G06K5/00
CPC分类号： G11B20/10009 , G06F11/1612
摘要： An error correction system is particularly suitable for user programmable calculators which may be programmed to perform a series of functions on data entries by means of a series of program steps entered into the calculator from a storage media such as recorded magnetic cards or the like. Data is stored in one or more pairs of tracks on the recording media with the first track of each pair for storing binary zeros and a second track of each pair for storing binary ones. Each time a binary zero is present, an alternating transition negative to positive or positive to negative appears on the zero's track of the storage media and each time a one is present an alternating transition negative to positive or positive to negative appears on the one's track of the storage media. For reading the data stored on the storage media, means such as a data latch is provided for each track for storing the direction of the previous transition positive to negative or negative to positive for that track and means for comparing the direction of such previous transition with the direction of the present transition. Whenever it is determined that the state of a bit of data is missing on a pair of tracks, i.e., no transition stored on either track for a given bit, the transitions located prior to, and following said missing bit will indicate the track on which the data bit should have been stored and hence the state of the missing bit. In an embodiment in which at least two pairs of tracks are utilized, the ORed output from the first pair of tracks may be compared to the ORed output from the second pair of tracks such that whenever a bit appears for the first pair but not the second pair it is determined that a bit is missing for the second pair.
摘要翻译：误差校正系统特别适用于用户可编程计算器，其可以被编程为通过从诸如记录的磁卡等的存储介质输入到计算器中的一系列程序步骤来对数据输入执行一系列功能。数据被存储在记录介质上的一对或多对轨道中，每对的第一轨道用于存储二进制零，并且每对的第二轨道用于存储二进制零。每当存在二进制零时，在存储介质的零轨迹上出现负到正或负到负的交替转变，并且每次存在一个存在的情况下，在一个轨迹上出现负向正或负到负的交替转变存储介质。为了读取存储在存储介质上的数据，为每个磁道提供诸如数据锁存器的装置，用于将先前转换的方向存储为对于该磁道为负或负的正或负，以及用于将先前转换的方向与目前转型的方向。无论何时确定在一对轨道上丢失一位数据的状态，即，对于给定位，存储在任一轨道上的转换不存在，则位于所述丢失位之前和之后的转换将指示其上的轨道应该存储数据位，因此应该丢失位的状态。在其中使用至少两对磁道的实施例中，可以将来自第一对磁道的或运算输出与来自第二对磁道的或运算输出进行比较，使得每当第一对出现位而不是第二对时，对确定第二对丢失了一个位。

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