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1. 发明申请

WO8804865A2 DIGITAL-TO-TIME CONVERTER 审中-公开
标题翻译：数字时间转换器
公开(公告)号：WO8804865A2
公开(公告)日：1988-06-30
申请号：PCT/US8703167
申请日：1987-11-27
申请人： ANALOG DEVICES INC
发明人： BARROW JEFFREY GEORGE , BROKAW ADRIAN PAUL
IPC分类号： G01R31/28 , G04F1/00 , G05F1/567 , G05F3/22 , H03K4/50 , H03K5/00 , H03K5/13 , H03M1/06 , H03M1/08 , H03M1/56 , H03M1/78
CPC分类号： H03M1/82 , G04F1/005 , G05F1/567 , G05F3/225 , G05F3/227 , H03K4/50 , H03K5/131 , H03K2005/00163 , H03K2005/00182 , H03M1/089 , H03M1/785
摘要： A monolithic integrated circuit generates a programmable time delay under control of a digital word. The delay is generated by comparing a ramp signal to a threshold determined by the value of the digital word and appears as a time difference between a trigger pulse and a pulse generated when the value of the ramp voltage equals the value of the threshold voltage. The ramp voltage is generated by a simple resistance/capacitance charging circuit whose time constant can be adjusted by the user. The threshold voltage is set by a digital-to-analog converter (DAC) and resistor circuit which converts the digital control word into a variable voltage. In order to stabilize the device against changes in temperature and power supply variations, a voltage coupling circuit forces the threshold voltage to track changes in the ramp voltage caused by temperature and power supply variations. The coupling circuit obviates the need for precision voltage sources or current mirrors conventionally used to compensate for temperature and power supply changes. Without the need for the latter devices, the integrated circuit can be easily and inexpensively fabricated of transistors of a single bipolar type.

2. 发明申请

WO0241007A2 THERMAL CONVECTION ACCELEROMETER WITH CLOSED-LOOP HEATER CONTROL 审中-公开
标题翻译：具有闭环加热器控制的热交换加速度计
公开(公告)号：WO0241007A2
公开(公告)日：2002-05-23
申请号：PCT/US0151364
申请日：2001-10-24
申请人： MEMSIC INC , ANALOG DEVICES INC
发明人： ZHAO YANG , BROKAW ADRIAN PAUL , REBESCHINI MICHAEL E , LEUNG ALBERT M , PUCCI GREGORY P , DRIBINSKY ALEXANDER
IPC分类号： G01P9/00 , G01C19/00 , G01P15/00 , G01P15/02 , G01P15/08 , G01P15/12 , G01P
CPC分类号： G01P15/008 , G01P15/08 , G01P15/12
摘要： An integrated convective accelerometer device (Figure 1, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 128, 130, 132, 134, 136). The device includes a thermal acceleration sensor having a thermopile and a heater element; control circuitry for providing closed-loop control of the thermopile common-mode voltage; an instrumentation amplifier; clock generation circuitry; voltage reference circuitry; a temperature sensor; and, output amplifiers. The device can be operated in an absolute or ratiometric mode. Further, the device is formed in a silicon substrate using standard semiconductor processes and is packaged in a standard integrated circuit package.
摘要翻译：集成对流加速度计装置（图1,100,102,104,106,108,110,112,114,116,118,120,122,124,128,130,132,134,136）。该装置包括具有热电堆和加热元件的热加速度传感器; 用于提供热电堆共模电压的闭环控制的控制电路; 仪表放大器; 时钟发生电路; 电压参考电路; 温度传感器; 和输出放大器。该设备可以以绝对或比例模式运行。此外，使用标准半导体工艺在硅衬底中形成器件，并封装在标准集成电路封装中。

3. 发明申请

WO8804865A3 DIGITAL-TO-TIME CONVERTER 审中-公开
标题翻译：数字到时间转换器
公开(公告)号：WO8804865A3
公开(公告)日：1988-11-17
申请号：PCT/US8703167
申请日：1987-11-27
申请人： ANALOG DEVICES INC
发明人： BARROW JEFFREY GEORGE , BROKAW ADRIAN PAUL
IPC分类号： G01R31/28 , G04F1/00 , G05F1/567 , G05F3/22 , H03K4/50 , H03K5/00 , H03K5/13 , H03M1/06 , H03M1/08 , H03M1/56 , H03M1/78
CPC分类号： H03M1/82 , G04F1/005 , G05F1/567 , G05F3/225 , G05F3/227 , H03K4/50 , H03K5/131 , H03K2005/00163 , H03K2005/00182 , H03M1/089 , H03M1/785
摘要： A monolithic integrated circuit generates a programmable time delay under control of a digital word. The delay is generated by comparing a ramp signal to a threshold determined by the value of the digital word and appears as a time difference between a trigger pulse and a pulse generated when the value of the ramp voltage equals the value of the threshold voltage. The ramp voltage is generated by a simple resistance/capacitance charging circuit whose time constant can be adjusted by the user. The threshold voltage is set by a digital-to-analog converter (DAC) and resistor circuit which converts the digital control word into a variable voltage. In order to stabilize the device against changes in temperature and power supply variations, a voltage coupling circuit forces the threshold voltage to track changes in the ramp voltage caused by temperature and power supply variations. The coupling circuit obviates the need for precision voltage sources or current mirrors conventionally used to compensate for temperature and power supply changes. Without the need for the latter devices, the integrated circuit can be easily and inexpensively fabricated of transistors of a single bipolar type.
摘要翻译：单片集成电路在数字字的控制下产生可编程的时间延迟。通过将斜坡信号与由数字字的值确定的阈值进行比较来产生延迟，并且显示为当斜坡电压的值等于阈值电压的值时在触发脉冲和所产生的脉冲之间的时间差。斜坡电压由一个简单的电阻/电容充电电路产生，该电路的时间常数可由用户调整。阈值电压由数模转换器（DAC）和将数字控制字转换为可变电压的电阻器电路设置。为了稳定装置以防止温度和电源变化的变化，电压耦合电路迫使阈值电压跟踪由温度和电源变化引起的斜坡电压的变化。耦合电路不需要通常用于补偿温度和电源变化的精密电压源或电流镜。不需要后者的器件，集成电路可以容易且廉价地由单个双极型晶体管制造。

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