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1. 发明授权

US4356379A Integrated heating element and method for thermal testing and compensation of integrated circuits 失效
标题翻译：集成电路的集成加热元件和热测试和补偿方法
公开(公告)号：US4356379A
公开(公告)日：1982-10-26
申请号：US153764
申请日：1980-05-27
申请人： Jerald G. Graeme
发明人： Jerald G. Graeme
IPC分类号： B23K26/00 , H01L27/02 , H05B1/00 , B01J17/00
CPC分类号： H01L27/0211 , B23K26/351
摘要： Apparatus for compensating thermal drift of temperature sensitive circuitry in an integrated circuit by heating the temperature sensitive circuitry by applying power to a heating element in the integrated circuit, testing the temperature sensitive circuitry, and trimming a thin film resistor in accordance with the testing results. The heating element is an integrated resistor adjacent to or surrounding the temperature sensitive circuitry. The integrated circuit further includes a thin film compensating resistor which affects or determines the degree of temperature sensitivity of the temperature sensitive circuitry. As the temperature of the temperature sensitive circuitry is increased, testing apparatus is utilized to measure a temperature sensitive parameter of the temperature sensitive circuitry. Control signals indicative of the amount of required trimming of the thin film compensation resistor are produced in response to the testing to adequately compensate the thermal drift of the temperature sensitive circuitry. The control signals are utilized to control the operations of a laser which precisely trims the thin film compensating resistor by the required amount.
摘要翻译：用于通过对集成电路中的加热元件施加功率加热温度敏感电路，测试温度敏感电路和根据测试结果修整薄膜电阻来补偿集成电路中的温度敏感电路的热漂移的装置。加热元件是与温度敏感电路相邻或围绕的集成电阻。集成电路还包括影响或确定温度敏感电路的温度敏感度的薄膜补偿电阻器。随着温度敏感电路的温度升高，测试装置用于测量温度敏感电路的温度敏感参数。响应于测试来产生指示薄膜补偿电阻器所需修整量的控制信号，以充分补偿温度敏感电路的热漂移。控制信号用于控制将薄膜补偿电阻精确修整所需量的激光器的操作。

2. 发明授权

US4272760A Self-calibrating digital to analog conversion system and method 失效
标题翻译：自校准数模转换系统及方法
公开(公告)号：US4272760A
公开(公告)日：1981-06-09
申请号：US28667
申请日：1979-04-10
申请人： Paul R. Prazak , Theodore L. Williams
发明人： Paul R. Prazak , Theodore L. Williams
IPC分类号： H03M1/00 , H03K13/02
CPC分类号： H03M1/1071 , H03M1/66
摘要： A digital to analog conversion system includes a memory for storing a plurality of correction codes corresponding to corrections required to compensate for inaccuracy in output currents of a main digital to analog converter (DAC) contained in the digital to analog conversion system. A plurality of the logic inputs applied to the inputs of the main DAC are also applied to the address inputs of the memory. A trim DAC having its inputs coupled to the data outputs of the memory converts the correction code stored in the addressed location of the memory into a correction current which is utilized externally of the main DAC to modify the net amount of output current available from the main DAC to compensate for inaccuracy of the unmodified output current. An output signal from a temperature sensor is connected to a digital number which is also applied to a plurality of the address inputs. Correction codes stored in locations addressable in response to the temperature sensor have values which effect adjustment of the correction current to compensate for inaccuracy of the output current due to temperature variations. A self-calibration system and method which updates the correction codes stored in the memory are also disclosed.
摘要翻译：数模转换系统包括存储器，用于存储对应于补偿数模转换系统中包含的主数模转换器（DAC）的输出电流不准确所需的校正的多个校正码。施加到主DAC的输入的多个逻辑输入也被施加到存储器的地址输入。具有耦合到存储器的数据输出的输入的修整DAC将存储在存储器的寻址位置中的校正码转换为在主DAC外部使用的校正电流，以修改从主DAC可用的输出电流的净量 DAC以补偿未修改的输出电流的不准确。来自温度传感器的输出信号连接到也被应用于多个地址输入的数字号码。存储在响应于温度传感器可寻址的位置中的校正代码具有影响校正电流的调整的值，以补偿由于温度变化引起的输出电流的不精确性。还公开了更新存储在存储器中的校正码的自校准系统和方法。

3. 发明授权

US4229692A Linear low drift bridge amplifier 失效
标题翻译：线性低漂移桥式放大器
公开(公告)号：US4229692A
公开(公告)日：1980-10-21
申请号：US954341
申请日：1978-10-25
申请人： Jerald G. Graeme
发明人： Jerald G. Graeme
IPC分类号： H03F3/68 , G01L1/22 , G01R17/14 , G01R27/02
CPC分类号： G01R17/14 , G01L1/225
摘要： A transducer bridge amplifier system includes a first operational amplifier having positive and negative inputs connected, respectively, to first and second output nodes of the bridge. The output of the operational amplifier is connected to a third node of the transducer bridge. A transducer of the transducer bridge is connected between the second node and the third node. A second operational amplifier has its positive input connected to ground and its negative input connected to the first node. A feedback resistor is coupled between the output of the second amplifier and a negative input of the second amplifier. An output signal produced by the second operational amplifier has a linear response to transducer deviation and low sensitivity to offset voltages of the first and second operational amplifiers. In a second alternate embodiment of the invention, the second operational amplifier has its output and its negative input connected to a negative terminal of a voltage supply biasing the transducer bridge amplifier system. The second operational amplifier has its positive input connected to the first node. The current flowing into the bridge system via the first node has linear response to transducer deviation and low sensitivity to affect voltages of the first and second operational amplifiers substantially independently of any impedance connected to the first node. In a third embodiment of the invention, the second operational amplifier can be omitted. A constant current source, rather than a constant voltage source, is used to bias the transducer bridge amplifier system. The current flowing into the first node biases linear response to transducer deviation and low sensitivity to offset voltage of the first operational amplifier.
摘要翻译：换能器桥式放大器系统包括具有分别连接到桥的第一和第二输出节点的正和负输入的第一运算放大器。运算放大器的输出连接到换能器桥的第三个节点。传感器桥的换能器连接在第二节点和第三节点之间。第二个运算放大器的正输入连接到地，其负输入连接到第一个节点。反馈电阻耦合在第二放大器的输出端和第二放大器的负输入端之间。由第二运算放大器产生的输出信号对第一和第二运算放大器的换能器偏差和偏移电压的低灵敏度具有线性响应。在本发明的第二替代实施例中，第二运算放大器具有其输出，其负输入连接到偏置换能器桥式放大器系统的电压源的负极端子。第二个运算放大器的正输入端与第一个节点相连。经由第一节点流入桥接系统的电流对于传感器偏差具有线性响应，并且低灵敏度以基本上独立于连接到第一节点的任何阻抗来影响第一和第二运算放大器的电压。在本发明的第三实施例中，可省略第二运算放大器。使用恒流源而不是恒压源来偏置换能器桥式放大器系统。流入第一个节点的电流偏置了对传感器偏差的线性响应和对第一运算放大器偏移电压的低灵敏度。

4. 发明授权

US3933712A Novel encapsulating material and method 失效
标题翻译：新型封装材料及方法
公开(公告)号：US3933712A
公开(公告)日：1976-01-20
申请号：US561209
申请日：1975-03-24
申请人： John J. Vanaglash, Jr.
发明人： John J. Vanaglash, Jr.
IPC分类号： C08L83/04 , H01B3/46 , C08J3/00
CPC分类号： H01B3/46 , C08L83/04 , C08G77/04
摘要： A novel encapsulating material and method of making said material is described wherein an organopolysiloxane polymer is mixed with a polydimethyl siloxane fluid diluent, a filler of hollow glass beads and a controlled amount of sodium in the form of sodium borate. A methyl hydrogen siloxane catalyst is added to the mixture and the material cured; the total amount of sodium present in the mixture and catalyst is maintained at approximately 180 ppm.
摘要翻译：描述了一种新颖的封装材料和制造所述材料的方法，其中将有机聚硅氧烷聚合物与聚二甲基硅氧烷流体稀释剂，中空玻璃珠的填料和受控量的硼酸钠形式的钠混合。将甲基氢硅氧烷催化剂加入到混合物中，并使材料固化; 混合物和催化剂中存在的钠的总量保持在约180ppm。

5. 发明授权

US4438338A Low profile optical coupling for an optoelectronic module 失效
标题翻译：用于光电子模块的薄型光耦合器
公开(公告)号：US4438338A
公开(公告)日：1984-03-20
申请号：US318475
申请日：1981-11-05
申请人： Robert M. Stitt , Neil P. Albaugh
发明人： Robert M. Stitt , Neil P. Albaugh
IPC分类号： G02B6/42 , H01L31/16 , H01L33/60 , H01L33/62 , G02F1/28
CPC分类号： H01L33/62 , G02B6/4204 , G02B6/4206 , G02B6/4226 , H01L31/16 , G02B6/4239 , H01L2224/48091 , H01L2924/01327 , H01L2924/12041 , H01L33/60
摘要： Means and method is disclosed for achieving a low profile optical coupling to a module comprising an optoelectronic device together with other circuitry. Maintaining the optoelectronic device parallel to the substrate on which it and the associated circuitry are mounted enables the use of standard, well known manufacturing assembly techniques while providing electrical connection to the electric ports of said optoelectronic device. Subsequent to the electrical interconnection operation, the optoelectronic device is moved, together with its connections, to a position substantially orthogonal with the mounting substrate. Optical fiber, light coupling is utilized. The low profile of the overall module package is achieved by introducing the optical fiber in a direction generally parallel with the substrate and perpendicular to the light active surface of the optic port of the optoelectronic device. The structure and method are applicable to both hybrid integrated circuit assembly technology as well as to conventional metallic lead frames for plastic encapsulation.
摘要翻译：公开了用于实现与包括光电子器件的模块的低剖面光耦合以及其它电路的手段和方法。维持光电子器件平行于其上和其相关电路安装的衬底能够使用标准的众所周知的制造组装技术，同时提供与所述光电子器件的电端口的电连接。在电互连操作之后，光电子器件与其连接一起移动到与安装衬底基本正交的位置。使用光纤，光耦合。整个模块封装的薄型化是通过在大致平行于衬底并垂直于光电器件的光端口的光活性表面的方向引入光纤来实现的。该结构和方法适用于混合集成电路组装技术以及用于塑料封装的常规金属引线框架。

6. 发明授权

US4152660A Isolation amplifier 失效
标题翻译：隔离放大器
公开(公告)号：US4152660A
公开(公告)日：1979-05-01
申请号：US891552
申请日：1978-03-30
申请人： Wilfred W. Olschewski
发明人： Wilfred W. Olschewski
IPC分类号： H03F3/38 , H03F3/387
CPC分类号： H03F3/387
摘要： This relates to a transformer coupled isolation amplifier employing multiple primary and secondary windings to separate power supply currents from signal currents. An input section includes an input amplifier, a flyback modulator and a first flyback demodulator. An output section includes an output amplifier and a second flyback demodulator. A power section alternately provides a voltage and a high impedance to the transformer, which voltage is coupled to the input and output amplifiers via first and second primary and first and second secondary windings respectively for the purpose of providing positive and negative power sources to the amplifiers. The input demodulator is coupled to the output demodulator by third primary and secondary windings.
摘要翻译：这涉及采用多个初级和次级绕组将电源电流与信号电流分开的变压器耦合隔离放大器。输入部分包括输入放大器，回扫调制器和第一反激式解调器。输出部分包括输出放大器和第二反激式解调器。功率部分交替地向变压器提供电压和高阻抗，该电压分别经由第一和第二初级和第一和第二和第二次级绕组耦合到输入和输出放大器，用于向放大器提供正和负电源。输入解调器通过第三个初级和次级绕组耦合到输出解调器。

7. 发明授权

US4142075A Interface circuit and method for telephone extension lines 失效
标题翻译：电话线路接口电路及方法
公开(公告)号：US4142075A
公开(公告)日：1979-02-27
申请号：US841009
申请日：1977-10-11
申请人： Wilfred W. Olschewski
发明人： Wilfred W. Olschewski
IPC分类号： H04B3/03 , H04B1/58 , H04B3/23 , H04M3/02 , H04M19/00 , H04Q3/00 , H04Q3/42 , H04Q1/28
CPC分类号： H04Q3/00 , H04B1/587
摘要： A semiconductor interface circuit and method of operation for transmitting and receiving information between a telephone set and a four wire switching system. The interface circuit includes DC current sources which may be modulated by a voice signal from the switching system. The current sources provide both DC power and the voice signal to the telephone set through a two wire cable. A high impedance amplifier amplifies the signal on the cable, which cable signal includes a DC voltage, a microphone signal from the telephone set, and a component due to the voice signal from the switching system, all three being dependent on the cable length. Cable termination resistors are optional. The signal from the switching system and the DC component of the output signal of the amplifier are multiplied by an inverting multiplier circuit. The output signal of the multiplier circuit is proportional to cable length and is utilized to cancel the amplifier output signal component which is related to the voice signal from the switching system. Thus, echo return is eliminated or minimized regardless of cable length. Differential optical coupling circuits are utilized to couple the signal from the switching system to the cable and to couple the cable signal to the switching system relatively independently of the efficiency of the light emitting diodes of the differential optical coupling circuits. A DC ring insertion signal is coupled from the switching system to an output of the interface circuit via one of the differential optical coupling circuits. Status signals from the telephone set are conducted via another of the differential optical coupling circuits. The semiconductor interface circuit is housed in a package having two optically isolated cavities therein.
摘要翻译：一种用于在电话机和四线交换系统之间发送和接收信息的半导体接口电路和操作方法。接口电路包括可以由来自开关系统的语音信号调制的直流电流源。电流源通过双线电缆向电话机提供直流电源和语音信号。高阻抗放大器放大电缆上的信号，哪个电缆信号包括直流电压，来自电话机的麦克风信号，以及由于来自开关系统的语音信号而导致的一个部件，这三个信号取决于电缆长度。电缆终端电阻是可选的。来自开关系统的信号和放大器的输出信号的直流分量乘以反相乘法电路。乘法器电路的输出信号与电缆长度成比例，用于消除与交换系统的语音信号相关的放大器输出信号分量。因此，无论电缆长度如何，消除或最小化回波返回。差分光耦合电路用于将来自开关系统的信号耦合到电缆，并且将电缆信号与差分光耦合电路的发光二极管的效率相对独立地耦合到开关系统。直流环插入信号通过差分光耦合电路之一从开关系统耦合到接口电路的输出端。来自电话机的状态信号通过另一个差分光耦合电路进行。半导体接口电路容纳在其中具有两个光学隔离腔的封装中。

8. 发明授权

US4103267A Hybrid transformer device 失效
标题翻译：混合变压器装置
公开(公告)号：US4103267A
公开(公告)日：1978-07-25
申请号：US806053
申请日：1977-06-13
申请人： Wilfred W. Olschewski
发明人： Wilfred W. Olschewski
IPC分类号： H01F19/00 , H01F17/00 , H01F17/06 , H01F19/06 , H01F27/28 , H05K1/16 , H05K1/18 , H01F15/02 , H01F27/30
CPC分类号： H01F27/2804 , H05K1/165 , H01F2027/2814 , H05K1/181 , H05K2201/086 , H05K2203/1476 , H05K3/222 , Y10T29/49073 , Y10T29/49169
摘要： A ceramic substrate is provided with a plurality of planar conductors formed on a surface of the substrate; conductors extend substantially radially from an imaginary point on the surface of the substrate. A layer of dielectric material is formed over the major portion of each of the conductors to form a ring of dielectric material to which a ferrite toroidal core is adhesively secured. The core is precoated with an insulating material prior to adhesively being secured to the dielectric ring. A plurality of wire conductors are wire bonded at each end thereof to the exposed ends of the metal conductors on the substrate.

9. 发明授权

US4284872A Method for thermal testing and compensation of integrated circuits 失效
标题翻译：集成电路的热测试和补偿方法
公开(公告)号：US4284872A
公开(公告)日：1981-08-18
申请号：US144179
申请日：1980-04-25
申请人： Jerald G. Graeme
发明人： Jerald G. Graeme
IPC分类号： B23K26/00 , H01L27/02
CPC分类号： H01L27/0211 , B23K26/351
摘要： Apparatus and method for compensating thermal drift of temperature sensitive circuitry in an integrated circuit by heating the temperature sensitive circuitry by applying power to a heating element in the integrated circuit, testing the temperature sensitive circuitry, and trimming a thin film resistor in accordance with the testing results. The heating element is an integrated resistor adjacent to or surrounding the temperature sensitive circuitry. The integrated circuit further includes a thin film compensation resistor which affects or determines the degree of temperature sensitivity of the temperature sensitive circuitry. As the temperature of the temperature sensitive circuitry is increased, testing apparatus is utilized to measure a temperature sensitive parameter of the temperature sensitive circuitry. Control signals indicative of the amount of required trimming of the thin film compensation resistor are produced in response to the testing to adequately compensate the thermal drift of the temperature sensitive circuitry. The control signals are utilized to control the operations of a laser which precisely trims the thin film compensating resistor by the required amount.
摘要翻译：通过对集成电路中的加热元件施加功率加热温度敏感电路，测试温度敏感电路和根据测试修整薄膜电阻器来补偿集成电路中的温度敏感电路的热漂移的装置和方法结果。加热元件是与温度敏感电路相邻或围绕的集成电阻。集成电路还包括影响或确定温度敏感电路的温度敏感度的薄膜补偿电阻器。随着温度敏感电路的温度升高，测试装置用于测量温度敏感电路的温度敏感参数。响应于测试来产生指示薄膜补偿电阻器所需的修整量的控制信号，以充分补偿温度敏感电路的热漂移。控制信号用于控制将薄膜补偿电阻精确修整所需量的激光器的操作。

10. 发明授权

US4282578A System for linearizing non-linear transducer signals 失效
标题翻译：用于线性化非线性换能器信号的系统
公开(公告)号：US4282578A
公开(公告)日：1981-08-04
申请号：US131031
申请日：1980-03-17
申请人： F. Leland Payne , Jeffrey L. Taylor
发明人： F. Leland Payne , Jeffrey L. Taylor
IPC分类号： G01D3/02 , G01R15/00 , G06F17/40 , G06F15/353
CPC分类号： G01D3/022
摘要： A system for linearizing non-linear transducer output signals includes an analog-to-digital converter having a plurality of digital outputs. A first group of the most significant bits of the analog-to-digital converter digital outputs are coupled to address inputs of a read only memory. The remaining digital outputs of the analog-to-digital converter are coupled to a first group of inputs of a digital multiplying circuit. A first group of data outputs of the read only memory are coupled to a first group of inputs of a summing circuit and represent intersection points of a piece-wise linear approximation to a mathematical curve representing the relationship between unlinearized data produced by the analog-to-digital converter and linearized data produced by the linearizing system. A second group of the read only memory data outputs are coupled to a second group of inputs of the digital multiplying circuit and represent the slopes of straight lines extending from one intersection point toward another. The digital multiplying circuit produces a product word, a predetermined number of bits of which are algebraically summed with the first group of read only memory data outputs. Since the carry bits are connected, the multiplier output is really summed with the entire first group.
摘要翻译：用于线性化非线性换能器输出信号的系统包括具有多个数字输出的模数转换器。模数转换器数字输出的第一组最高有效位耦合到只读存储器的地址输入。模数转换器的剩余数字输出耦合到数字乘法电路的第一组输入端。只读存储器的第一组数据输出被耦合到求和电路的第一组输入，并且将分段线性近似的交点表示为表示由模拟到非线性产生的非线性化数据之间的关系的数学曲线数字转换器和由线性化系统生成的线性化数据。第二组只读存储器数据输出耦合到数字乘法电路的第二组输入，并且表示从一个交叉点向另一个交叉点延伸的直线的斜率。数字乘法电路产生产品字，其预定数量的比特与第一组只读存储器数据输出代数相加。由于进位位被连接，所以乘法器的输出与整个第一组真正相加。

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