SELF-CALIBRATING, WIDE-RANGE TEMPERATURE SENSOR
    1.
    发明申请
    SELF-CALIBRATING, WIDE-RANGE TEMPERATURE SENSOR 有权
    自校准,宽范围温度传感器

    公开(公告)号:US20110116527A1

    公开(公告)日:2011-05-19

    申请号:US12620392

    申请日:2009-11-17

    IPC分类号: G01K15/00

    CPC分类号: G01K7/01 G01K15/005

    摘要: A self-calibrating, wide-range temperature sensor includes a current reference, impervious to process and voltage, with the current reference mirrored into two oppositely-sized bipolar transistors or diodes. Duplicate current sources are used with a ratio of geometries between them, such that the larger current biases the smaller bipolar transistor (less cross-sectional area) and the smaller current source biases the larger bipolar transistor (higher cross-sectional area). The current source in conjunction with the differential temperature sensing provides inherent calibration without drift while the differential sensing, from the ratio of geometries in the current paths also increases sensitivity.

    摘要翻译: 自校准的宽范围温度传感器包括电流参考,不受过程和电压影响,电流参考反映到两个相对大小的双极晶体管或二极管中。 使用重复的电流源,它们之间的几何形状的比例,使得较大的电流偏置较小的双极晶体管(较小的横截面积),较小的电流源偏置较大的双极晶体管(较高的横截面积)。 结合差分温度感测的电流源提供固有的校准,无漂移,而差分感测,从电流路径中的几何比也增加灵敏度。

    NON-VOLATILE MEMORY CHARGE PUMP FOR RADIO FREQUENCY IDENTIFICATION (RFID) SYSTEM
    2.
    发明申请
    NON-VOLATILE MEMORY CHARGE PUMP FOR RADIO FREQUENCY IDENTIFICATION (RFID) SYSTEM 有权
    用于无线电频率识别(RFID)系统的非易失性存储器充电泵

    公开(公告)号:US20100301122A1

    公开(公告)日:2010-12-02

    申请号:US12477087

    申请日:2009-06-02

    IPC分类号: G06K19/06

    CPC分类号: G06K19/0723 G06K19/0713

    摘要: A charge pump is incorporated into circuitry of an RFID tag. The charge pump takes advantage of an antenna voltage phase to eliminate the need for a charge pump clock generator. Placement of the charge pump in the RFID circuitry reduces the number of pump stages and eliminates drivers used in each pump stage. In some implementations, an RFID tag comprises antenna circuitry, including a tuned antenna, for receiving an RF signal. Voltage conversion circuitry in the RFID tag is coupled to the antenna circuitry and operable for converting a varying magnetic field produced in the antenna to a voltage source. A charge pump is coupled to output voltage signals of the antenna circuitry which provide the charge pump with a high starting reference voltage and a two phase pump clock.

    摘要翻译: 电荷泵被并入RFID标签的电路中。 电荷泵利用天线电压相位来消除对电荷泵时钟发生器的需要。 电荷泵在RFID电路中的放置减少了泵级数,并消除了每个泵级中使用的驱动器。 在一些实施方案中,RFID标签包括用于接收RF信号的天线电路,包括调谐天线。 RFID标签中的电压转换电路耦合到天线电路并且可操作以将在天线中产生的变化的磁场转换成电压源。 电荷泵耦合到天线电路的输出电压信号,其向电荷泵提供高启动参考电压和两相泵时钟。

    Self-calibrating, wide-range temperature sensor
    3.
    发明授权
    Self-calibrating, wide-range temperature sensor 有权
    自校准,宽范围温度传感器

    公开(公告)号:US08783949B2

    公开(公告)日:2014-07-22

    申请号:US12620392

    申请日:2009-11-17

    IPC分类号: G01K7/01 G01K15/00

    CPC分类号: G01K7/01 G01K15/005

    摘要: A self-calibrating, wide-range temperature sensor includes a current reference, impervious to process and voltage, with the current reference mirrored into two oppositely-sized bipolar transistors or diodes. Duplicate current sources are used with a ratio of geometries between them, such that the larger current biases the smaller bipolar transistor (less cross-sectional area) and the smaller current source biases the larger bipolar transistor (higher cross-sectional area). The current source in conjunction with the differential temperature sensing provides inherent calibration without drift while the differential sensing, from the ratio of geometries in the current paths also increases sensitivity.

    摘要翻译: 自校准的宽范围温度传感器包括电流参考,不受过程和电压影响,电流参考反映到两个相对大小的双极晶体管或二极管中。 使用重复的电流源,它们之间的几何形状的比例,使得较大的电流偏置较小的双极晶体管(较小的横截面积),较小的电流源偏置较大的双极晶体管(较高的横截面积)。 结合差分温度感测的电流源提供固有的校准,无漂移,而差分感测,从电流路径中的几何比也增加灵敏度。

    Non-volatile memory charge pump for radio frequency identification (RFID) system
    4.
    发明授权
    Non-volatile memory charge pump for radio frequency identification (RFID) system 有权
    用于射频识别(RFID)系统的非易失性存储器电荷泵

    公开(公告)号:US08186601B2

    公开(公告)日:2012-05-29

    申请号:US12477087

    申请日:2009-06-02

    IPC分类号: G06K19/06

    CPC分类号: G06K19/0723 G06K19/0713

    摘要: A charge pump is incorporated into circuitry of an RFID tag. The charge pump takes advantage of an antenna voltage phase to eliminate the need for a charge pump clock generator. Placement of the charge pump in the RFID circuitry reduces the number of pump stages and eliminates drivers used in each pump stage. In some implementations, an RFID tag comprises antenna circuitry, including a tuned antenna, for receiving an RF signal. Voltage conversion circuitry in the RFID tag is coupled to the antenna circuitry and operable for converting a varying magnetic field produced in the antenna to a voltage source. A charge pump is coupled to output voltage signals of the antenna circuitry which provide the charge pump with a high starting reference voltage and a two phase pump clock.

    摘要翻译: 电荷泵被并入RFID标签的电路中。 电荷泵利用天线电压相位来消除对电荷泵时钟发生器的需要。 电荷泵在RFID电路中的放置减少了泵级数,并消除了每个泵级中使用的驱动器。 在一些实施方案中,RFID标签包括用于接收RF信号的天线电路,包括调谐天线。 RFID标签中的电压转换电路耦合到天线电路并且可操作以将在天线中产生的变化的磁场转换成电压源。 电荷泵耦合到天线电路的输出电压信号,其向电荷泵提供高启动参考电压和两相泵时钟。

    Fully integrated voltage regulator using open loop digital control for optimum power stepping and slew rate
    5.
    发明授权
    Fully integrated voltage regulator using open loop digital control for optimum power stepping and slew rate 有权
    全集成稳压器,采用开环数字控制,实现最佳功率步进和转换速率

    公开(公告)号:US09170592B2

    公开(公告)日:2015-10-27

    申请号:US13603993

    申请日:2012-09-05

    摘要: Methods and systems are disclosed for an integrated voltage regulator with open loop digital control for power stepping. In one aspect, a method for regulating an output voltage includes receiving data indicative of a power setting associated with an identified state of an electrical circuit, the power setting based on a load current demand of the electrical circuit in the identified state, enabling one or more parallel driver segments based on the received data indicative of the power setting. The method further includes sourcing by the enabled one or more parallel driver segments sufficient current to meet the load current demand of the electrical circuit in the identified state while maintaining the output voltage at a predetermined voltage level, and providing the output voltage to the electrical circuit at the predetermined voltage level.

    摘要翻译: 公开了用于功率步进的具有开环数字控制的集成稳压器的方法和系统。 在一个方面,一种用于调节输出电压的方法包括接收指示与电路的识别状态相关联的功率设置的数据,该功率设置基于所识别状态下的电路的负载电流需求,使能一个或多个 基于接收到的指示功率设置的数据,更多的并行驱动器段。 该方法还包括通过所启用的一个或多个并行驱动器段获得足够的电流以满足在识别状态下的电路的负载电流需求,同时将输出电压保持在预定电压电平,并将输出电压提供给电路 在预定电压电平。

    FULLY INTEGRATED VOLTAGE REGULATOR USING OPEN LOOP DIGITAL CONTROL FOR OPTIMUM POWER STEPPING AND SLEW RATE
    6.
    发明申请
    FULLY INTEGRATED VOLTAGE REGULATOR USING OPEN LOOP DIGITAL CONTROL FOR OPTIMUM POWER STEPPING AND SLEW RATE 有权
    使用开环数字控制的全功率整流电压调节器实现最佳功率步进和更高的速率

    公开(公告)号:US20140062442A1

    公开(公告)日:2014-03-06

    申请号:US13603993

    申请日:2012-09-05

    IPC分类号: G05F1/10

    摘要: Methods and systems are disclosed for an integrated voltage regulator with open loop digital control for power stepping. In one aspect, a method for regulating an output voltage includes receiving data indicative of a power setting associated with an identified state of an electrical circuit, the power setting based on a load current demand of the electrical circuit in the identified state, enabling one or more parallel driver segments based on the received data indicative of the power setting. The method further includes sourcing by the enabled one or more parallel driver segments sufficient current to meet the load current demand of the electrical circuit in the identified state while maintaining the output voltage at a predetermined voltage level, and providing the output voltage to the electrical circuit at the predetermined voltage level.

    摘要翻译: 公开了用于功率步进的具有开环数字控制的集成稳压器的方法和系统。 在一个方面,一种用于调节输出电压的方法包括接收指示与电路的识别状态相关联的功率设置的数据,该功率设置基于所识别状态下的电路的负载电流需求,使能一个或多个 基于接收到的指示功率设置的数据,更多的并行驱动器段。 该方法还包括通过所启用的一个或多个并行驱动器段获得足够的电流以满足在识别状态下的电路的负载电流需求,同时将输出电压保持在预定电压电平,并将输出电压提供给电路 在预定电压电平。

    Method and apparatus for data backup and restoration in a portable data device
    7.
    发明授权
    Method and apparatus for data backup and restoration in a portable data device 有权
    在便携式数据设备中进行数据备份和恢复的方法和装置

    公开(公告)号:US06317755B1

    公开(公告)日:2001-11-13

    申请号:US09360571

    申请日:1999-07-26

    IPC分类号: G06F1730

    摘要: A portable data device (300) having a memory (302) is provided. The memory (302) is segmented into a plurality of sectors (304-312). A backup memory buffer (312) and a plurality of applications (304-310) are programmed into the plurality of sectors, wherein the backup memory buffer (312) is jointly used by the plurality of applications (304-310). A valid state of data is stored in the backup memory buffer (312) prior to performing a transaction for a first application (304). The valid state of data is restored in the first application (304) upon power up of the portable data device (300) in an event the transaction is terminated prior to completion, wherein the step of restoring is independent of a next application in which a next transaction is performed.

    摘要翻译: 提供具有存储器(302)的便携式数据设备(300)。 存储器(302)被分割成多个扇区(304-312)。 备份存储器缓冲器(312)和多个应用程序(304-310)被编程到多个扇区中,其中备用存储器缓冲器(312)由多个应用程序共同使用(304-310)。 在对第一应用执行交易之前,将有效的数据状态存储在备份存储器缓冲器(312)中(304)。 在事务在完成之前被终止的情况下,在便携式数据设备(300)上电时,在第一应用(304)中恢复数据的有效状态,其中恢复步骤独立于下一个应用 执行下一个事务。

    Method and apparatus for providing a modified temperature compensation
signal in a TCXO circuit
    8.
    发明授权
    Method and apparatus for providing a modified temperature compensation signal in a TCXO circuit 失效
    用于在TCXO电路中提供修改的温度补偿信号的方法和装置

    公开(公告)号:US5428319A

    公开(公告)日:1995-06-27

    申请号:US158548

    申请日:1993-11-29

    IPC分类号: H03B5/32 H03L1/00 H03L1/02

    CPC分类号: H03L1/00 H03L1/025

    摘要: A modified temperature compensation signal (110) is provided in a temperature compensated crystal oscillator (TCXO) circuit (100) in the following manner. A temperature dependent current generator (104) produces a temperature compensation signal (108) whose amplitude changes responsive to changes in ambient temperature. The temperature compensation signal (108) is scaled, based on a plurality of discrete frequency adjust values (212), to produce the modified temperature compensation signal (110).

    摘要翻译: 在温度补偿晶体振荡器(TCXO)电路(100)中以下列方式提供改进的温度补偿信号(110)。 温度依赖电流发生器(104)产生温度补偿信号(108),其温度响应于环境温度的变化而变化。 基于多个离散频率调整值(212)对温度补偿信号(108)进行缩放,以产生修改的温度补偿信号(110)。