公开(公告)号：US20050274180A1

公开(公告)日：2005-12-15

申请号：US11146993

申请日：2005-06-07

申请人： Yang Zhao ,  Albert Leung ,  Michael Rebeschini ,  Gregory Pucci ,  Alexander Dribinsky ,  Yongyao Cai

发明人： Yang Zhao ,  Albert Leung ,  Michael Rebeschini ,  Gregory Pucci ,  Alexander Dribinsky ,  Yongyao Cai

IPC分类号： G01P15/00

CPC分类号： G01P15/008

摘要： A thermal accelerometer device that provides a compensation for sensitivity variations over temperature. The thermal accelerometer includes signal conditioning circuitry operative to receive analog signals representing a differential temperature is indicative of a sensed acceleration. The signal conditioning circuitry includes serially connected A-to-D and D-to-A converters, which implement a temperature dependent function and process the received signals to provide a compensation for sensitivity variations over a range of ambient temperature. To provide a ratiometric compensation for variations in power supply voltage, a buffered voltage proportional to the supply voltage is provided as a reference voltage to the D-to-A converter. The thermal accelerometer includes a self-test circuit for verifying the integrity of a heater, temperature sensors, and circuitry included within the device.

摘要翻译： 一种热敏加速度计装置，可提供对温度敏感度变化的补偿。 热加速度计包括信号调节电路，其操作以接收表示差分温度的模拟信号，其指示感测到的加速度。 信号调理电路包括串行连接的A到D和D到A转换器，其实现温度依赖功能并处理接收到的信号以提供在环境温度范围内的灵敏度变化的补偿。 为了提供电源电压变化的比例补偿，将与电源电压成比例的缓冲电压作为参考电压提供给D转换器。 热加速度计包括用于验证加热器，温度传感器和包括在装置内的电路的完整性的自检电路。

公开(公告)号：US07671643B2

公开(公告)日：2010-03-02

申请号：US12006467

申请日：2008-01-03

申请人： Alexander Dribinsky ,  Gregory Pucci

发明人： Alexander Dribinsky ,  Gregory Pucci

IPC分类号： H03L7/00

CPC分类号： H03K17/22 ,  H03K2217/0036

摘要： A power-on-reset (POR) circuit having a zero or substantially zero current state while the supply voltage is in a predetermined, valid range is disclosed. The POR circuit includes a state machine, an oscillator, and output circuitry that are electrically coupled to one another and to a supply voltage. Output from the output circuitry is also provided to the integrated circuit to which the POR circuit is coupled. The state machine includes a plurality of sequential circuits such as latches, flip-flops, and the like that are electrically coupled in a cascade, to provide a ripple counter. The output circuitry is structured and arranged to reset or initialize all of the logic elements on the chip by generating a POR output logic HI (1) signal by Boolean operation of the logic circuitry signal of the state machine for all Boolean states except one. The oscillator is disabled when the POR output logic signal is LO (0), which causes the POR circuit to enter a zero or substantially zero current state.

摘要翻译： 公开了一种在电源电压处于预定的有效范围内具有零或基本零电流状态的上电复位（POR）电路。 POR电路包括电耦合到电源电压的状态机，振荡器和输出电路。 输出电路的输出也提供给POR电路耦合到的集成电路。 状态机包括串联电耦合的多个时序电路，例如锁存器，触发器等，以提供纹波计数器。 输出电路被构造和布置成通过对除了一个之外的所有布尔状态的状态机的逻辑电路信号的布尔运算产生POR输出逻辑HI（1）信号来复位或初始化芯片上的所有逻辑元件。 当POR输出逻辑信号为LO（0）时，振荡器被禁止，这导致POR电路进入零或基本零电流状态。

公开(公告)号：US20090174444A1

公开(公告)日：2009-07-09

申请号：US12006467

申请日：2008-01-03

申请人： Alexander Dribinsky ,  Gregory Pucci

发明人： Alexander Dribinsky ,  Gregory Pucci

IPC分类号： H03L7/00

CPC分类号： H03K17/22 ,  H03K2217/0036

摘要： A power-on-reset (POR) circuit having a zero or substantially zero current state while the supply voltage is in a predetermined, valid range is disclosed. The POR circuit includes a state machine, an oscillator, and output circuitry that are electrically coupled to one another and to a supply voltage. Output from the output circuitry is also provided to the integrated circuit to which the POR circuit is coupled. The state machine includes a plurality of sequential circuits such as latches, flip-flops, and the like that are electrically coupled in a cascade, to provide a ripple counter. The output circuitry is structured and arranged to reset or initialize all of the logic elements on the chip by generating a POR output logic HI (1) signal by Boolean operation of the logic circuitry signal of the state machine for all Boolean states except one. The oscillator is disabled when the POR output logic signal is LO (0), which causes the POR circuit to enter a zero or substantially zero current state.

摘要翻译： 公开了一种在电源电压处于预定的有效范围内具有零或基本零电流状态的上电复位（POR）电路。 POR电路包括电耦合到电源电压的状态机，振荡器和输出电路。 输出电路的输出也提供给POR电路耦合到的集成电路。 状态机包括串联电耦合的多个时序电路，例如锁存器，触发器等，以提供纹波计数器。 输出电路被构造和布置成通过对除了一个之外的所有布尔状态的状态机的逻辑电路信号的布尔运算产生POR输出逻辑HI（1）信号来复位或初始化芯片上的所有逻辑元件。 当POR输出逻辑信号为LO（0）时，振荡器被禁止，这导致POR电路进入零或基本零电流状态。

公开(公告)号：US5724009A

公开(公告)日：1998-03-03

申请号：US739339

申请日：1996-10-29

申请人： Timothy Collins ,  Gregory Pucci

发明人： Timothy Collins ,  Gregory Pucci

IPC分类号： H03L1/02 ,  H03B5/32

CPC分类号： H03L1/026

摘要： A digital temperature compensated crystal oscillator (10) with pin multiplex control which includes: four analog I/O pins, a signal multiplex method which allows switchable digital communication via at least two of the analog I/O pins (20,28), and an external mode selector (12) which operates through the power leads. Changes in the power voltage level selects the TCXO (10) to operate in a normal or communication operating mode. In the normal operating mode the TCXO operates in a normal analog manner. In the communication mode, the analog functions of the I/O pins (20,28) are switched out and digital functions are allowed on the same I/O pins (20,28). The use of the same I/O pins (20,28) for switchable analog and digital signals saves size and cost, and prevents the inadvertent access to the digital functions of the TCXO (10) by customers in the field.

摘要翻译： 一种具有引脚复用控制的数字温度补偿晶体振荡器（10），包括：四个模拟I / O引脚，一种允许通过至少两个模拟I / O引脚（20,28）进行可切换数字通信的信号复用方法，以及 通过电源线工作的外部模式选择器（12）。 电源电压电平的变化选择TCXO（10）在正常或通信工作模式下工作。 在正常工作模式下，TCXO以正常的模拟方式工作。 在通信模式下，I / O引脚（20,28）的模拟功能被切换，同一个I / O引脚（20,28）允许使用数字功能。 使用相同的I / O引脚（20,28）可切换的模拟和数字信号可以节省大小和成本，并防止客户在现场无意中访问TCXO（10）的数字功能。

公开(公告)号：US5459436A

公开(公告)日：1995-10-17

申请号：US298915

申请日：1994-08-31

申请人： Gregory Pucci ,  Tim Collins ,  Larry Connell ,  Dennis Marvin

发明人： Gregory Pucci ,  Tim Collins ,  Larry Connell ,  Dennis Marvin

IPC分类号： H03L1/02 ,  H03B5/04

CPC分类号： H03L1/02

摘要： A temperature compensated crystal oscillator (TCXO) (10) with a disable feature adapted to disable or enable temperature compensation. The TCXO (10) includes a crystal oscillator (12), a temperature measurement and compensation circuit (18), a timing generator (20) and a temperature compensation disable/enable circuit (30) for disabling or enabling temperature compensation updates of the crystal oscillator (12). The TCXO (10) is particularly adapted for use in connection with digital temperature compensated crystal oscillators.

摘要翻译： 温度补偿晶体振荡器（TCXO）（10），具有禁用或禁用温度补偿的禁用功能。 TCXO（10）包括晶体振荡器（12），温度测量和补偿电路（18），定时发生器（20）和温度补偿禁用/使能电路（30），用于禁止或使能晶体的温度补偿更新 振荡器（12）。 TCXO（10）特别适用于数字温度补偿晶体振荡器。