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11. 发明授权

US5500618A Operational function generator 失效
标题翻译：操作函数发生器
公开(公告)号：US5500618A
公开(公告)日：1996-03-19
申请号：US314520
申请日：1994-09-29
申请人： Donald T. Comer
发明人： Donald T. Comer
IPC分类号： G06G7/26 , G06G7/42 , H03H11/26
CPC分类号： G06G7/26
摘要： A novel compensation device for conditioning or generating signals to have an arbitrarily defined shape, produced to an arbitrarily specified accuracy. The device comprises a plurality of bounded polynomial function generators having outputs summed into a summing network to produce a signal which is the composite of the effects of all of the polynomial generators. Accuracy is achieved through the use of fusible link trimming of the compensation circuits, which are configured to provide mathematically well-behaved polynomial functions with predictable responses to the programming, and which produce effects only over desired segments of the range of interest. The result is a monotonic signal with no discontinuities, which can be made arbitrarily close to a specified signal.
摘要翻译：一种新颖的补偿装置，用于调节或产生具有任意定义形状的信号，产生任意指定的精度。该装置包括多个有界多项式函数发生器，其输出相加到求和网络中以产生作为所有多项式发生器的效果的复合的信号。通过使用补偿电路的可熔链路修剪来实现准确度，所述补偿电路被配置为提供具有对编程的可预测响应的数学上良好的多项式函数，并且仅对感兴趣的范围的期望的段产生影响。结果是没有不连续性的单调信号，可以任意地接近指定的信号。

12. 发明授权

US4777471A Apparatus for multiple link trimming in precision integrated circuits 失效
标题翻译：精密集成电路中多重链接修剪的装置
公开(公告)号：US4777471A
公开(公告)日：1988-10-11
申请号：US064675
申请日：1987-06-22
申请人： Donald T. Comer
发明人： Donald T. Comer
IPC分类号： H03M1/00 , H03K13/02
CPC分类号： H03M1/74
摘要： An improved circuit, and an improved device geometry for trimming element values in an integrated circuit employs selectable short-circuiting of fusible elements by means of application of a prescribed sequence of electrical waveforms of prescribed amplitude and polarity. The improved trim circuit configuration offers the possibility of improved trim circuit density by allowing selection of three trim elements from a single contact pad, in conjunction with a common contact pad, for each trim circuit. Replication of the circuits allows extension of the range of adjustment or of the resolution of the trim, at the expense of only one additional pad per each additional trim circuit. A unique device geometry is described for implementing the improved trim circuit within a single isolation pocket of an integrated circuit.
摘要翻译：一种改进的电路和用于在集成电路中修整元件值的改进的器件几何形状通过施加规定的幅度和极性的电波形的规定顺序，可选择地对可熔元件进行短路。改进的微调电路配置通过允许从每个微调电路的公共接触焊盘选择来自单个接触焊盘的三个微调元件来提供改进的微调电路密度的可能性。电路的复制允许扩展调整范围或修整的分辨率，而每个附加微调电路只需要一个额外的焊盘。描述了一种独特的器件几何形状，用于在集成电路的单个隔离槽内实现改进的微调电路。

13. 发明授权

US4168528A Voltage to current conversion circuit 失效
标题翻译：电压到电流转换电路
公开(公告)号：US4168528A
公开(公告)日：1979-09-18
申请号：US926845
申请日：1978-07-21
申请人： Donald T. Comer
发明人： Donald T. Comer
IPC分类号： G06J1/00 , H03M1/00 , H03K1/02 , H03K13/02
CPC分类号： G06J1/00 , H03M1/745
摘要： A simplified temperature stabilized circuit provides a current which is proportional to a variable voltage by the use of branching transistor circuitry which fixes the voltage level of the supplied current, and controls its magnitude. The variable voltage is supplied through a reference resistor to the emitter of a first junction transistor having its base connected to the base of an identical junction transistor having its emitter grounded, thereby fixing the input voltage to the first transistor at a virtual ground potential. A third identical transistor has its base and emitter connected in parallel with the first transistor and carries an equal amount of current. Current derived in parallel from the first and second transistor is positively proportioned relative to the current flowing in the collector path of the third transistor by a pair of mirror-connected transistors having suitable relative areas and load resistors. The desired temperature stabilized current is applied from the bases of the mirrored transistors to the ladder network of a digital to analog converter. Two cascaded digital-to-analog circuits of this type provide a stable analog output voltage proportional to the product of the two numbers represented by the binary inputs.
摘要翻译：简化的温度稳定电路通过使用固定供电电流的电压电平的分支晶体管电路提供与可变电压成比例的电流，并且控制其幅度。可变电压通过参考电阻器提供给第一结型晶体管的发射极，其第一结型晶体管的基极连接到其发射极接地的相同结型晶体管的基极，由此将第一晶体管的输入电压固定在虚拟地电位。第三个相同的晶体管的基极和发射极与第一晶体管并联连接并承载等量的电流。从第一和第二晶体管并联导出的电流相对于通过一对具有合适的相对面积和负载电阻器的镜像连接的晶体管在第三晶体管的集电极路径中流动的电流成正比。所需的温度稳定电流从镜像晶体管的基极施加到数模转换器的梯形网络。这种类型的两个级联数模电路提供与二进制输入表示的两个数字的乘积成比例的稳定的模拟输出电压。

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