公开(公告)号：US5774009A

公开(公告)日：1998-06-30

申请号：US799253

申请日：1997-02-14

Applicant: Jay D. Popper

Inventor： Jay D. Popper

IPC: H03K5/1252 ,  H03K17/16

CPC classification number: H03K5/1252

Abstract: A clock generator circuit that produces clock signals at the logic signal transitions at an output in response to a sinewave input control signal derived from an oscillator includes a delay means connected in one of the inverter-amplifier stages to prevent unwanted noise-induced logic transitions at the output, thereby to reduce significantly the adverse effects of oscillator and power supply noise on the clock output signal.

Abstract translation: 响应于从振荡器导出的正弦波输入控制信号在输出处产生逻辑信号转变的时钟信号的时钟发生器电路包括连接在反相放大器级之一中的延迟装置，以防止不期望的噪声引起的逻辑转换 输出，从而显着降低振荡器和电源噪声对时钟输出信号的不利影响。

公开(公告)号：US08154270B2

公开(公告)日：2012-04-10

申请号：US12371375

申请日：2009-02-13

Applicant: Jane Xu ,  Steven Burstein ,  Jay D. Popper

Inventor： Jane Xu ,  Steven Burstein ,  Jay D. Popper

IPC: G05F5/00

CPC classification number: H03K17/223

Abstract: An input protection circuit (IPC) may prevent an input signal from propagating into a system, such as an integrated circuit (IC), when the voltage level of the input signal exceeds a specified value. The IPC may be configured to compare the input signal voltage, which may be that of an external input signal received by the system, with a reference voltage, which may be the power supply voltage. If the input signal voltage exceeds the reference voltage, the output of the IPC may be set to the value of a specified clamp voltage. If the input signal voltage does not exceed the reference voltage, the output of the IPC may track (or follow) the input signal voltage. For certain integrated circuits, the IPC may be configured to provide circuit protection for an input signal voltage ranging between 0V to 5V, and a power supply voltage ranging between 3.0V and 3.6V.

Abstract translation: 当输入信号的电压电平超过指定值时，输入保护电路（IPC）可以防止输入信号传播到诸如集成电路（IC）的系统中。 IPC可以被配置为将输入信号电压（其可以是系统接收的外部输入信号的电压）与可以是电源电压的参考电压进行比较。 如果输入信号电压超过参考电压，则IPC的输出可以设置为指定钳位电压的值。 如果输入信号电压不超过参考电压，则IPC的输出可以跟踪（或跟随）输入信号电压。 对于某些集成电路，IPC可以配置为为0V至5V之间的输入信号电压和3.0V至3.6V之间的电源电压提供电路保护。

公开(公告)号：US5790873A

公开(公告)日：1998-08-04

申请号：US685376

申请日：1996-07-23

Applicant: Jay D. Popper ,  Richard E. Wahler

Inventor： Jay D. Popper ,  Richard E. Wahler

IPC: G06F1/26 ,  G06F12/16 ,  H02J9/00 ,  H02J9/06 ,  G06F1/30

CPC classification number: H02J9/005 ,  G06F1/26 ,  H02J9/06 ,  Y10T307/625

Abstract: A method and apparatus for providing power management functions in a computer or other electronic system which includes a primary power supply, a trickle power supply and a battery back-up power supply. A power management circuit includes a storage element which stores an indication of the current turn-on or turn-off condition of the primary power supply. The power management circuit also includes a group of logic gates which process signals which are supplied to the storage element under normal operating conditions to control the turn-on or turn-off condition of the primary power supply. The power management circuit senses when the trickle supply is deactivated due to a line power failure or the like, and subsequently switches the power supply inputs of the storage element and certain of the logic gates from the trickle supply to the battery back-up supply. A blocking signal is generated which prevents those signals which require the trickle supply for logic integrity from being applied to the storage element. In this manner, only signals which do not require the trickle supply for logic integrity are applied to the storage element while the trickle supply is deactivated.

Abstract translation: 一种用于在包括主电源，涓流电源和电池备用电源的计算机或其他电子系统中提供电源管理功能的方法和装置。 电源管理电路包括存储元件，其存储主电源的当前导通或关断状态的指示。 功率管理电路还包括一组逻辑门，其处理在正常工作条件下提供给存储元件的信号，以控制主电源的导通或关断状态。 电源管理电路由于线路电源故障等而感知到涓流电源何时停止，并且随后将存储元件的电源输入和某些逻辑门从涓流供应切换到电池备用电源。 产生阻塞信号，其阻止需要向逻辑完整性提供涓流供应的那些信号被施加到存储元件。 以这种方式，只有不需要用于逻辑完整性的涓流供应的信号被施加到存储元件，同时涓流供应被去激活。

公开(公告)号：US07917679B2

公开(公告)日：2011-03-29

申请号：US11061146

申请日：2005-02-18

Applicant: Richard E. Wahler ,  Jay D. Popper ,  Eileen M. Marando

Inventor： Richard E. Wahler ,  Jay D. Popper ,  Eileen M. Marando

IPC: G06F13/10 ,  G06F13/38

CPC classification number: G06F13/385 ,  G06F1/1632 ,  G06F21/85

Abstract: A method and apparatus for operating a portable computer configured for docking to a docking station is disclosed. In one embodiment, a portable computer system includes a docking interface having a bus switch and a bus monitoring circuit, and a bus coupled to the docking interface. With the computer coupled to a docking station, the bus switch, when closed, may couple the bus to a peripheral interface in the docking station. The bus switch may close responsive to docking, thereby completing the electrical coupling of the bus to the peripheral interface in the docking station. The portable computer being docked to the docking station, the bus monitoring circuit may monitor the bus cycles occurring on the bus and identify trusted read and/or write cycles. During trusted bus cycles the monitoring circuit may operate to open the bus switch thereby preventing information transmitted during the trusted cycles to be accessible outside of the portable computer system, even with the portable computer system remaining docked to the docking station. The monitoring circuit may also operate to close the bus switch in response to a currently occurring trusted bus cycle being interrupted, aborted and/or completed.

Abstract translation: 公开了一种用于操作配置成对接到对接站的便携式计算机的方法和装置。 在一个实施例中，便携式计算机系统包括具有总线开关和总线监视电路的对接接口以及耦合到对接接口的总线。 当计算机耦合到对接站时，总线开关在关闭时可以将总线耦合到对接站中的外围接口。 总线开关可以响应于对接而关闭，从而完成总线到对接站中的外围接口的电耦合。 便携式计算机被对接到对接站，总线监视电路可以监视总线上发生的总线周期并识别可信读和/或周期。 在可信总线周期期间，监控电路可以操作以打开总线开关，从而即使便携式计算机系统仍然对接到对接站，也可以防止在可信周期期间传输的信息在便携式计算机系统之外可访问。 响应于当前发生的信任总线周期被中断，中止和/或完成，监控电路还可以操作以关闭总线开关。

公开(公告)号：US20100207596A1

公开(公告)日：2010-08-19

申请号：US12371375

申请日：2009-02-13

Applicant: Jane Xu ,  Steven Burstein ,  Jay D. Popper

Inventor： Jane Xu ,  Steven Burstein ,  Jay D. Popper

IPC: G05F5/00

CPC classification number: H03K17/223

Abstract: An input protection circuit (IPC) may prevent an input signal from propagating into a system, such as an integrated circuit (IC), when the voltage level of the input signal exceeds a specified value. The IPC may be configured to compare the input signal voltage, which may be that of an external input signal received by the system, with a reference voltage, which may be the power supply voltage. If the input signal voltage exceeds the reference voltage, the output of the IPC may be set to the value of a specified clamp voltage. If the input signal voltage does not exceed the reference voltage, the output of the IPC may track (or follow) the input signal voltage. For certain integrated circuits, the IPC may be configured to provide circuit protection for an input signal voltage ranging between 0V to 5V, and a power supply voltage ranging between 3.0V and 3.6V.

Abstract translation: 当输入信号的电压电平超过指定值时，输入保护电路（IPC）可以防止输入信号传播到诸如集成电路（IC）的系统中。 IPC可以被配置为将输入信号电压（其可以是系统接收的外部输入信号的电压）与可以是电源电压的参考电压进行比较。 如果输入信号电压超过参考电压，则IPC的输出可以设置为指定钳位电压的值。 如果输入信号电压不超过参考电压，则IPC的输出可以跟踪（或跟随）输入信号电压。 对于某些集成电路，IPC可以配置为为0V至5V之间的输入信号电压和3.0V至3.6V之间的电源电压提供电路保护。

公开(公告)号：US06885243B2

公开(公告)日：2005-04-26

申请号：US10452697

申请日：2003-06-02

Applicant: Steven Burstein ,  Len Bekker ,  Jay D. Popper

Inventor： Steven Burstein ,  Len Bekker ,  Jay D. Popper

IPC: G06F1/26 ,  G06F9/00 ,  G06F15/177 ,  G06F17/50 ,  G06F19/00 ,  H03F3/45

CPC classification number: G06F1/26

Abstract: A voltage reference is dynamically and digitally controlled by a digital function. The digital function may be implemented as a digital calculation or look up table. Inputs to the function include a modifiable trim value stored in a trim register, and a substrate temperature value. The preset value of the trim register is a trim preset value generated by cutting fuses and/or leaving fuses uncut. The cutting may be performed using laser trimming-devices. The output of the digital function is a corrected reference trim value that controls the gain of a voltage reference amplifier whose input is a band gap based voltage reference, and whose output is a derived voltage reference. The substrate temperature value is provided by a monolithic temperature monitor whose sensor may be on the same die as the derived voltage reference. The derived voltage reference provides a stable reference voltage that is dynamically and digitally controllable, to a host system that requires a voltage reference.

Abstract translation: 电压参考值由数字功能动态和数字控制。 数字功能可以被实现为数字计算或查找表。 对功能的输入包括存储在修剪寄存器中的可修改修整值和衬底温度值。 修剪寄存器的预设值是通过切断保险丝和/或保留未熔断器产生的修整预设值。 可以使用激光修整装置进行切割。 数字功能的输出是校正的参考调整值，其控制输入是基于带隙的参考电压并且其输出是导出电压基准的参考放大器的增益。 衬底温度值由单片温度监测器提供，其传感器可以在与导出的电压基准相同的管芯上。 导出的电压基准提供动态和数字可控的稳定的参考电压到需要电压参考的主机系统。

公开(公告)号：US5898513A

公开(公告)日：1999-04-27

申请号：US802335

申请日：1997-02-11

Applicant: Ronald V. Gist ,  Jay D. Popper

Inventor： Ronald V. Gist ,  Jay D. Popper

IPC: H04B10/10 ,  H04B10/06 ,  H04B10/00

CPC classification number: H04B10/114

Abstract: A circuit and method for detecting an edge of the carrier frequency of received data from a remote IR communications device by an Infrared Communications Controller is disclosed. During the receiving of IR signals from a remote IR communications device such as, for example, a TV, VCR or stereo, a frequency window of frequencies above and below a predetermined carrier frequency is opened. If the edge of the carrier frequency of the received data falls within the frequency window, communications are established between the IrCC and the remote IR communications device. If the negative edge of the carrier frequency of the received data does not fall in the frequency window of frequencies, then the system aborts communications. Provisions are made for a ten percent (10%), a twenty percent (20%) frequency window, and a forty percent (40%) frequency window. Other configurations combining various percentage frequency windows are also disclosed as well as methods for generating the frequency windows.

Abstract translation: 公开了一种用于通过红外通信控制器从远程IR通信设备检测接收数据的载波频率的边缘的电路和方法。 在从远程IR通信设备（例如TV，VCR或立体声）接收IR信号期间，打开高于和低于预定载波频率的频率的频率窗口。 如果接收到的数据的载波频率的边缘落在频率窗口内，则在IrCC和远程IR通信设备之间建立通信。 如果接收数据的载波频率的负边缘不落在频率的频率窗口中，则系统中止通信。 10％（10％），20％（20％）频率窗口和40％（40％）频率窗口的规定。 还公开了组合各种百分比频率窗口的其他配置以及用于生成频率窗口的方法。