Test mode circuitry for a programmable tamper detection circuit
    1.
    发明申请
    Test mode circuitry for a programmable tamper detection circuit 有权
    用于可编程篡改检测电路的测试模式电路

    公开(公告)号:US20070115122A1

    公开(公告)日:2007-05-24

    申请号:US11473451

    申请日:2006-06-23

    IPC分类号: G08B13/14 G08B21/00 G05B19/00

    CPC分类号: G11C16/20 G11C16/22 G11C17/16

    摘要: An integrated circuit includes an output pad, an alarm output pad, and a test mode output pad. A first multi-bit register is programmable to store programmable data such as data that identifies a customer for whom the integrated circuit has been manufactured. A second multi-bit register is programmable to store customer specified threshold data. A first circuit selectively couples the first and second multi-bit registers to the output pad. The first circuit is operable responsive to the integrated circuit being placed into a test mode to perform parallel-to-serial conversion of either the customer identification data stored in the first multi-bit register or the customer specified threshold data stored in the second multi-bit register and drive the converted data for output through the output pad. The integrated circuit further includes a tamper detection circuit operable responsive to the customer specified threshold data to generate a tamper alarm signal. A second circuit selectively couples the tamper alarm signal to the alarm output pad and test mode output pad depending on whether the integrated circuit is in a test mode. More specifically, the second circuit operates to drive the alarm output pad with the tamper alarm signal when the integrated circuit is not in test mode and drive the test mode output pad with the tamper alarm signal when the integrated circuit is in test mode (with the alarm output pad driven to a known state).

    摘要翻译: 集成电路包括输出焊盘,报警输出焊盘和测试模式输出焊盘。 第一个多位寄存器是可编程的,用于存储可编程数据,例如识别已经制造了集成电路的客户的数据。 可编程第二个多位寄存器来存储客户指定的阈值数据。 第一电路将第一和第二多位寄存器选择性地耦合到输出焊盘。 第一电路可操作地响应于集成电路被放置在测试模式中,以执行存储在第一多位寄存器中的客户识别数据或存储在第二多位寄存器中的客户指定的阈值数据的并行 - 串行转换, 位寄存器,并通过输出板驱动转换后的数据输出。 集成电路还包括可响应于客户指定的阈值数据操作的篡改检测电路,以产生篡改报警信号。 第二电路根据集成电路是否处于测试模式,选择性地将篡改报警信号耦合到报警输出焊盘和测试模式输出焊盘。 更具体地,当集成电路不处于测试模式时,第二电路用于驱动具有篡改报警信号的报警输出板,并且当集成电路处于测试模式时驱动具有篡改报警信号的测试模式输出板 报警输出板驱动到已知状态)。

    Temperature tamper detection circuit and method
    2.
    发明申请
    Temperature tamper detection circuit and method 有权
    温度篡改检测电路及方法

    公开(公告)号:US20070146056A1

    公开(公告)日:2007-06-28

    申请号:US11474669

    申请日:2006-06-26

    IPC分类号: G05F1/10 G05F3/02 H01L31/058

    CPC分类号: G01K3/005 G01K7/015

    摘要: An integrated circuit temperature sensor includes a sensing circuit operable to determine whether the integrated circuit is currently exposed to one of a relatively low temperature or a relatively high temperature. A selection circuit operates to select a measured voltage across the base-emitter of a bipolar transistor of the integrated circuit if the sensing circuit indicates that the integrated circuit is currently exposed to the relatively low temperature or, alternatively, select a measured delta voltage across the base-emitter of the bipolar transistor of the integrated circuit if the sensing circuit indicates that the integrated circuit is currently exposed to the relatively high temperature. A comparator then compares the selected measured voltage across the base-emitter of the bipolar transistor against a first reference voltage indicative of a too cold temperature condition or compares the selected measured delta voltage across the base-emitter of the bipolar transistor against a second reference voltage indicative of a too hot temperature condition. As a result of the comparison, detection may be made as to whether the integrated circuit is currently exposed to one of either a too cold or too hot temperature.

    摘要翻译: 集成电路温度传感器包括感测电路,其可操作以确定集成电路当前是否暴露于较低温度或较高温度之一。 如果感测电路指示集成电路当前暴露于相对较低的温度,则选择电路用于选择集成电路的双极晶体管的基极 - 发射极两端的测量电压,或者替代地,选择跨越 如果感测电路指示集成电路当前暴露于相对较高的温度,则集成电路的双极晶体管的基极 - 发射极。 比较器然后将双极晶体管的基极 - 发射极两端的选定测量电压与指示过冷温度条件的第一参考电压进行比较,或将双极晶体管的基极 - 发射极两端的选定测量的增量电压与第二参考电压 表示太热的温度条件。 作为比较的结果,可以检测集成电路当前是否暴露于太冷或过热的温度之一。

    Test mode and test method for a temperature tamper detection circuit
    3.
    发明申请
    Test mode and test method for a temperature tamper detection circuit 有权
    温度篡改检测电路的测试模式和测试方法

    公开(公告)号:US20070115032A1

    公开(公告)日:2007-05-24

    申请号:US11473877

    申请日:2006-06-23

    IPC分类号: H03K5/153

    CPC分类号: G01K3/005 G01K7/015 G01K15/00

    摘要: An integrated circuit temperature sensor includes a sensing circuit operable to determine whether the integrated circuit is currently exposed to one of a relatively low temperature or a relatively high temperature. A selection circuit operates to select a measured voltage across the base-emitter of a bipolar transistor of the integrated circuit if the sensing circuit indicates that the integrated circuit is currently exposed to the relatively low temperature or, alternatively, select a measured delta voltage across the base-emitter of the bipolar transistor of the integrated circuit if the sensing circuit indicates that the integrated circuit is currently exposed to the relatively high temperature. A comparator then compares the selected measured voltage across the base-emitter of the bipolar transistor against a first reference voltage indicative of a too cold temperature condition or compares the selected measured delta voltage across the base-emitter of the bipolar transistor against a second reference voltage indicative of a too hot temperature condition. As a result of the comparison, detection may be made as to whether the integrated circuit is currently exposed to one of either a too cold or too hot temperature. In a test mode, the circuit is exposed to a readily available temperature, such as room temperature, and the measured delta voltage across the base-emitter and/or the measured voltage across the base-emitter are scaled in accordance with that available temperature for application to the comparator. Alternatively, in test mode the reference voltages are scaled to intersect with the measured delta voltage across the base-emitter and/or the measured voltage across the base-emitter at the available temperature.

    摘要翻译: 集成电路温度传感器包括感测电路,其可操作以确定集成电路当前是否暴露于较低温度或较高温度之一。 如果感测电路指示集成电路当前暴露于相对较低的温度,则选择电路用于选择集成电路的双极晶体管的基极 - 发射极两端的测量电压,或者替代地,选择跨越 如果感测电路指示集成电路当前暴露于相对较高的温度,则集成电路的双极晶体管的基极 - 发射极。 比较器然后将双极晶体管的基极 - 发射极两端的选定测量电压与指示过冷温度条件的第一参考电压进行比较,或将双极晶体管的基极 - 发射极两端的选定测量的增量电压与第二参考电压 表示太热的温度条件。 作为比较的结果,可以检测集成电路当前是否暴露于太冷或过热的温度之一。 在测试模式中,电路暴露于易于获得的温度,例如室温,并且基极 - 发射极两端的测量的增量电压和/或基极 - 发射极两端的测量电压都按照可用温度 应用于比较器。 或者,在测试模式中,参考电压被缩放以与基极 - 发射极两端测得的增量电压和/或可用温度下的基极 - 发射极两端的测量电压相交。

    Reset initialization
    4.
    发明申请
    Reset initialization 有权
    重置初始化

    公开(公告)号:US20050134345A1

    公开(公告)日:2005-06-23

    申请号:US10999751

    申请日:2004-11-30

    申请人: David McClure

    发明人: David McClure

    摘要: A reset initialization structure and method is described. A power on reset pulse is utilized to force the state of system reset during intervals of Vcc which otherwise would result in indeterminate reset states. Operation is adaptable to include all DC power systems. The reset initialization structure provides operational protection during power up and power down conditions.

    摘要翻译: 描述了复位初始化结构和方法。 上电复位脉冲用于在Vcc的间隔期间迫使系统复位状态,否则将导致不确定的复位状态。 操作适应于包括所有直流电源系统。 复位初始化结构在上电和掉电条件下提供操作保护。

    Tilling machine, method of use and method of gardening
    5.
    发明授权
    Tilling machine, method of use and method of gardening 有权
    耕耘机,使用方法和园艺方法

    公开(公告)号:US06338209B1

    公开(公告)日:2002-01-15

    申请号:US09547254

    申请日:2000-04-11

    申请人: David McClure

    发明人: David McClure

    IPC分类号: E02F522

    摘要: A trenching machine having independently driven wheels. Trenching machine comprises digging chain that moves between a raised position and a lowered position, a housing that is carried by a pair of front wheels and a pair of rear casters, a motor that independently drives front wheels to propel housing, and a guide wheel that aligns trenching machine with trench upon a second pass. Trenching machine also has a front plow and a rear plow that collect and deposit the dirt surrounding the trench into the trench. A method of gardening/landscaping wherein a trench is dug by a first pass, soil amendments are added to the trench, and then on the second pass, the excavated dirt is plowed back into the trench and then mixed with the amendments. A method of gardening/landscaping wherein vegetation cover between trenched rows is maintained thus utilizing only the ground area that is needed for planting.

    摘要翻译: 具有独立驱动轮的挖沟机。 挖沟机包括在升高位置和下降位置之间移动的挖掘链,由一对前轮和一对后脚轮承载的壳体,独立地驱动前轮推动壳体的马达和引导轮, 在第二次通过时将挖沟机与沟槽对齐。 沟槽机还具有前犁和后犁,将沟槽周围的污物收集并沉积到沟槽中。 一种园艺/美化方法,其中通过第一道次挖掘沟槽,将土壤修改物添加到沟槽中,然后在第二道次上,将挖掘出的污物犁回到沟槽中,然后与修改物混合。 一种园艺/园林绿化方法,其中维持沟槽之间的植被覆盖,因此仅利用种植所需的地面区域。

    Power-on reset circuit
    6.
    发明授权
    Power-on reset circuit 有权
    上电复位电路

    公开(公告)号:US07504870B2

    公开(公告)日:2009-03-17

    申请号:US11696383

    申请日:2007-04-04

    IPC分类号: H03L7/00

    CPC分类号: H03K17/223

    摘要: A power-on reset circuit. The power-on reset circuit includes a switch, a current source coupled between a first potential and a switch first contact; a resistive device having a resistive-device first contact coupled to the first potential; a first module coupled between a second potential and a switch second contact; a second module coupled between the second potential and resistive-device second contact; and an inverter having an inverter input coupled to the resistive-device second contact. Current through the second module mirrors current through the first module. If a first mirrored potential of the second potential present on a switch control contact is greater than a preselected value, the switch first contact is coupled to the switch second contact. Otherwise, the switch first contact is decoupled from the switch second contact.

    摘要翻译: 上电复位电路。 上电复位电路包括开关,耦合在第一电位和开关第一触点之间的电流源; 电阻器件,其具有耦合到所述第一电位的电阻器件第一触点; 耦合在第二电位和开关第二触点之间的第一模块; 耦合在第二电位和电阻器件第二触点之间的第二模块; 以及具有耦合到所述电阻器件第二触点的反相器输入的反相器。 通过第二个模块的电流反射通过第一个模块的电流。 如果存在于开关控制触点上的第二电位的第一镜像电位大于预选值,则开关第一触点耦合到开关第二触点。 否则,开关第一触点与开关第二触点解耦。

    Battery Monitor Circuit
    7.
    发明申请
    Battery Monitor Circuit 有权
    电池监视器电路

    公开(公告)号:US20070257640A1

    公开(公告)日:2007-11-08

    申请号:US11743795

    申请日:2007-05-03

    申请人: David McClure

    发明人: David McClure

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0031

    摘要: A battery monitor circuit. The circuit includes a control module, a resistive load having a resistive value between a first and a second terminals and a part of that resistive value between the first and an intermediate terminals, a switch configured to couple the full load between circuit input and a common potential in response a pulse signal, a first comparator having inputs separately coupled to a voltage reference and the intermediate terminal, a second comparator having inputs separately coupled to the voltage reference and an input potential, a latch, a detection module having input coupled to second comparator output, and an alarm module. The latch is configured to latch a value at output of first comparator to another input of the detection module in response to the pulse signal; if input potential is less than a preselected magnitude, detection module output is configured to activate the alarm module.

    摘要翻译: 电池监控电路。 所述电路包括控制模块,在第一和第二端子之间具有电阻值的电阻负载和在第一和中间端子之间的电阻值的一部分的电阻负载,被配置为将电路输入和公共端之间的满载耦合的开关 响应于脉冲信号的电位,具有分别耦合到电压基准和中间端子的输入的第一比较器,具有分别耦合到电压基准和输入电位的输入的第二比较器,锁存器,具有耦合到第二 比较器输出和报警模块。 锁存器被配置为响应于脉冲信号将第一比较器的输出处的值锁存到检测模块的另一个输入端; 如果输入电位小于预选值,则检测模块输出被配置为激活报警模块。

    Power-On Reset Circuit
    8.
    发明申请
    Power-On Reset Circuit 有权
    上电复位电路

    公开(公告)号:US20070236840A1

    公开(公告)日:2007-10-11

    申请号:US11696383

    申请日:2007-04-04

    IPC分类号: H02H7/00

    CPC分类号: H03K17/223

    摘要: A power-on reset circuit. The power-on reset circuit includes a switch, a current source coupled between a first potential and a switch first contact; a resistive device having a resistive-device first contact coupled to the first potential; a first module coupled between a second potential and a switch second contact; a second module coupled between the second potential and resistive-device second contact; and an inverter having an inverter input coupled to the resistive-device second contact. Current through the second module mirrors current through the first module. If a first mirrored potential of the second potential present on a switch control contact is greater than a preselected value, the switch first contact is coupled to the switch second contact. Otherwise, the switch first contact is decoupled from the switch second contact.

    摘要翻译: 上电复位电路。 上电复位电路包括开关,耦合在第一电位和开关第一触点之间的电流源; 电阻器件,其具有耦合到所述第一电位的电阻器件第一触点; 耦合在第二电位和开关第二触点之间的第一模块; 耦合在第二电位和电阻器件第二触点之间的第二模块; 以及具有耦合到所述电阻器件第二触点的反相器输入的反相器。 通过第二个模块的电流反射通过第一个模块的电流。 如果存在于开关控制触点上的第二电位的第一镜像电位大于预选值,则开关第一触点耦合到开关第二触点。 否则,开关第一触点与开关第二触点解耦。

    Reset ramp control
    9.
    发明申请
    Reset ramp control 有权
    复位斜坡控制

    公开(公告)号:US20050134346A1

    公开(公告)日:2005-06-23

    申请号:US11012693

    申请日:2004-12-15

    IPC分类号: H03K5/24 H03K17/22 H03L7/00

    CPC分类号: H03K5/2481 H03K17/223

    摘要: A reset ramp control structure and method is described. A fast ramp down condition of a monitored voltage is detected and used to force the state of system reset. Delay between fast ramp detection and the forcing of system reset is adjustable. Operation is adaptable to include all DC power systems. The reset ramp control structure provides operational protection during fast ramp down conditions when standard reset circuitry may not be operational.

    摘要翻译: 描述了复位斜坡控制结构和方法。 检测到监控电压的快速下降条件,并用于强制系统复位状态。 快速斜坡检测与系统复位强制之间的延迟可调。 操作适应于包括所有直流电源系统。 当标准复位电路可能不工作时,复位斜坡控制结构在快速下降条件下提供操作保护。

    Voltage regulator with stress mode
    10.
    发明申请
    Voltage regulator with stress mode 失效
    电压调节器,带应力模式

    公开(公告)号:US20050083028A1

    公开(公告)日:2005-04-21

    申请号:US10690332

    申请日:2003-10-21

    申请人: David McClure

    发明人: David McClure

    IPC分类号: G05F3/16 G05F3/24

    CPC分类号: G05F3/242

    摘要: An electronic device incorporates a primary function circuit and a voltage regulator that provides a regulated voltage signal to the primary function circuit. The voltage regulator is responsive to a stress-enable signal indicative of whether or not an external voltage supplied to the voltage detector is within a predetermined range. The output voltage signal is controlled to be at a first voltage level when the external voltage is within the predetermined voltage range and at a second voltage level when the external voltage is outside of the predetermined range. The second voltage level may be an elevated voltage level to facilitate stress testing or burin-in of the electronic device.

    摘要翻译: 电子设备包括主功能电路和向主功能电路提供调节电压信号的电压调节器。 电压调节器响应于指示供应到电压检测器的外部电压是否在预定范围内的应力使能信号。 当外部电压在预定电压范围内时,输出电压信号被控制在第一电压电平,并且当外部电压在预定范围之外时被控制在第二电压电平。 第二电压电平可以是升高的电压电平,以便于电子装置的压力测试或加压。