Low voltage/low power temperature sensor
    11.
    发明授权
    Low voltage/low power temperature sensor 有权
    低电压/低功耗温度传感器

    公开(公告)号:US06421626B1

    公开(公告)日:2002-07-16

    申请号:US09187502

    申请日:1998-11-06

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: G01K7/01

    Abstract: The present invention is a temperature sensor which is based on the actual temperature coefficients of a device in the circuit, rather than a predetermined threshold voltage that varies across different devices. This temperature sensor includes a circuit which determines the temperature of a device. More particularly, CMOS circuit is provided which uses a current source to generate charge and discharge voltages applied to a capacitor. These voltages are dependent on the temperature coefficient of a resistor in the current source. The charge and discharge times are then used to determine a frequency which is dependent on the temperature coefficient of the resistor. Thus, the temperature is sensed based on the output frequency of the circuit. Additionally, the present invention includes a mechanism which allows the temperature sensor to be activated or deactivated as needed.

    Abstract translation: 本发明是基于电路中的器件的实际温度系数的温度传感器,而不是在不同器件之间变化的预定阈值电压。 该温度传感器包括确定装置的温度的电路。 更具体地,提供了使用电流源来产生施加到电容器的电荷和放电电压的CMOS电路。 这些电压取决于电流源中电阻器的温度系数。 然后使用充电和放电时间来确定取决于电阻器的温度系数的频率。 因此,基于电路的输出频率感测温度。 此外,本发明包括一种允许温度传感器根据需要被激活或去激活的机构。

    Power supply switch reference circuitry

    公开(公告)号:US5747890A

    公开(公告)日:1998-05-05

    申请号:US464082

    申请日:1995-06-05

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: H02J9/061 H02J2009/068 Y10T307/615 Y10T307/735

    Abstract: An apparatus and method for switching between two power supplies, a primary power supply and a secondary power supply. The present invention generates a first reference voltage using the voltage of the primary power supply and the secondary power supply, wherein the primary power supply voltage is variable. The present invention also generates a second reference voltage based on the voltage of the primary power supply. The first and second reference voltages each have a different slope and the crossing point between these two reference voltages indicate that a switch between the primary power supply and the secondary power supply should occur.

    Low power low voltage level shifter
    13.
    发明授权
    Low power low voltage level shifter 失效
    低功耗低电压电平转换器

    公开(公告)号:US5705946A

    公开(公告)日:1998-01-06

    申请号:US473321

    申请日:1995-06-07

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: H03K19/01707 H03K19/0013

    Abstract: A low power, low voltage level shifter is provided. The voltage level shifter includes a first switching circuit, and a second switching circuit. The first switching circuit has a first input terminal for receiving a first oscillating signal, and based on the first oscillating signal, switches the output of the first switching circuit between a first voltage level and a second voltage level. The second switching circuit has a second input terminal connected to the output terminal of the first switching circuit. The second switching circuit also has a third input terminal for receiving a second oscillating signal which is out of phase with the first oscillating signal. Based on the input signals received, the second switching circuit generates an output signal that switches between a third voltage level and a fourth voltage level at a selected rate and frequency.

    Abstract translation: 提供了低功率,低电压电平转换器。 电压电平移位器包括第一开关电路和第二开关电路。 第一开关电路具有用于接收第一振荡信号的第一输入端,并且基于第一振荡信号,在第一电压电平和第二电压电平之间切换第一开关电路的输出。 第二开关电路具有连接到第一开关电路的输出端的第二输入端。 第二开关电路还具有用于接收与第一振荡信号异相的第二振荡信号的第三输入端。 基于所接收的输入信号,第二开关电路产生以选定的速率和频率在第三电压电平和第四电压电平之间切换的输出信号。

    PERSONAL DIGITAL NOTIFICATION SYSTEM, APPARATUS, AND METHOD
    14.
    发明申请
    PERSONAL DIGITAL NOTIFICATION SYSTEM, APPARATUS, AND METHOD 审中-公开
    个人数字通报系统,装置和方法

    公开(公告)号:US20110171937A1

    公开(公告)日:2011-07-14

    申请号:US12687243

    申请日:2010-01-14

    Abstract: A system, method, and apparatus for receiving notifications from a notifying device, and alerting a user as to the notification are provided. Embodiments of the present invention include a connectivity transceiver, and a notifying device transceiver positioned within a signal distance of a signal transmitted by the connectivity transceiver, wherein the connectivity controller is configured to set the signal distance to a reduced signal distance upon initiating a pairing operation with the notifying device transceiver. Further, the connectivity transceiver may be communicably coupled to a system controller that adjusts an interval duty cycle of inquiry scans and page scans based on a connection with the notifying device transceiver.

    Abstract translation: 提供了一种用于从通知装置接收通知并且向用户通知关于通知的系统,方法和装置。 本发明的实施例包括连接性收发器和位于由连接收发器发送的信号的信号距离内的通知装置收发器,其中连接控制器被配置为在发起配对操作时将信号距离设置为减小的信号距离 与通知设备收发器。 此外,连接收发器可以可通信地耦合到系统控制器,系统控制器基于与通知设备收发器的连接来调整查询扫描和页面扫描的间隔占空比。

    Low power, cost effective, temperature compensated real time clock and method of clocking systems
    15.
    发明授权
    Low power, cost effective, temperature compensated real time clock and method of clocking systems 有权
    低功耗,低成本,温度补偿的实时时钟和计时系统的方法

    公开(公告)号:US06729755B1

    公开(公告)日:2004-05-04

    申请号:US09546276

    申请日:2000-04-10

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: G04G3/02

    Abstract: A temperature compensated clock and method of clocking systems are provided. The clock preferably has an oscillator for generating an oscillating waveform signal at a preselected frequency and a frequency divider responsive to the oscillator for dividing the frequency of the oscillating waveform signal. A temperature monitoring circuit is positioned responsive to a voltage input signal independent of temperature and a voltage input signal proportional to temperature for monitoring temperature variations. A temperature compensating circuit, preferably including a programmable scaling circuit, is responsive to the frequency divider and the temperature monitoring circuit for scaling the divided frequency of the generated waveform and thereby advantageously produces a temperature compensated output timing signal.

    Abstract translation: 提供了温度补偿时钟和计时系统的方法。 时钟优选地具有用于以预选频率产生振荡波形信号的振荡器和响应于振荡器分频振荡波形信号的频率的分频器。 温度监测电路响应于独立于温度的电压输入信号和与温度成比例的电压输入信号来定位,用于监测温度变化。 优选地包括可编程缩放电路的温度补偿电路响应于分频器和温度监视电路,用于缩放产生的波形的分频,从而有利地产生温度补偿的输出定时信号。

    Temperature sensing circuit and method
    16.
    发明授权
    Temperature sensing circuit and method 有权
    温度检测电路及方法

    公开(公告)号:US06695475B2

    公开(公告)日:2004-02-24

    申请号:US09872695

    申请日:2001-05-31

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: G01K7/203 G01K15/00

    Abstract: A method and circuit are disclosed for measuring temperature. An exemplary embodiment of the present invention includes a first oscillator circuit that generates a first signal having a frequency that is dependent upon a sensed temperature. Difference circuitry determines a difference in frequency between the first signal and the second signal having a frequency that is substantially independent of temperature, and generates a difference signal having a number of pulses thereon based upon the difference. A counter circuit is responsive to the difference circuitry for offsetting a predetermined temperature level based upon the pulses appearing on the difference signal, to obtain an output signal indicative of the sensed temperature.

    Abstract translation: 公开了用于测量温度的方法和电路。 本发明的示例性实施例包括产生具有取决于感测温度的频率的第一信号的第一振荡器电路。 差分电路确定具有基本上与温度无关的频率的第一信号和第二信号之间的频率差,并且基于该差异产生具有多个脉冲的差信号。 计数器电路响应于差分电路,用于基于出现在差分信号上的脉冲来偏移预定的温度水平,以获得指示感测温度的输出信号。

    Low current crystal oscillator with fast start-up time
    17.
    发明授权
    Low current crystal oscillator with fast start-up time 失效
    低电流晶振,启动时间快

    公开(公告)号:US5805027A

    公开(公告)日:1998-09-08

    申请号:US642271

    申请日:1996-05-03

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: H03K3/014 H03K3/3545

    Abstract: Crystal oscillator circuitry provides a very fast start-up function requiring less than 100 mS. The crystal oscillator circuitry enters a stop mode when a control signal transitions from a first logic level to a second logic level thereby causing a crystal to stop oscillating. In order to initiate the fast start-up function, a pulse is provided to the gate of a transistor which is electrically connected between a first node and a second node, thus causing the voltage of the first node to move towards the voltage level of the second node and the second node to move towards the voltage level of the first node. Upon initiation of the start-up function, the energy at the crystal of the crystal oscillator circuitry is at least four times higher than the energy required in a steady state mode. The crystal oscillator circuitry has a VT (threshold voltage) independent high feedback resistance which provides stable oscillation frequency over a wide range of Vcc supply voltage. The VT independent high feedback resistance is ensured by proper sizing of the transistors of the crystal oscillator circuitry.

    Abstract translation: 晶体振荡器电路提供非常快的启动功能,需要小于100 mS。 当控制信号从第一逻辑电平转换到第二逻辑电平时,晶体振荡器电路进入停止模式,从而导致晶体停止振荡。 为了启动快速启动功能,将脉冲提供给电连接在第一节点和第二节点之间的晶体管的栅极,从而使得第一节点的电压朝向 第二节点和第二节点朝向第一节点的电压电平移动。 在起动功能开始时,晶体振荡器电路的晶体的能量比稳定状态模式中所需的能量高至少四倍。 晶体振荡器电路具有独立的VT(阈值电压)独立的高反馈电阻,可在宽范围的Vcc电源电压下提供稳定的振荡频率。 通过晶体振荡器电路的晶体管的适当尺寸确保VT独立的高反馈电阻。

    Power supply isolation and switching circuit
    18.
    发明授权
    Power supply isolation and switching circuit 失效
    电源隔离开关电路

    公开(公告)号:US5517153A

    公开(公告)日:1996-05-14

    申请号:US474493

    申请日:1995-06-07

    CPC classification number: H02J9/00 G05F1/465 H02J1/10

    Abstract: A power supply isolation and switching circuit formed in a semiconductor structure which eliminates a parasitic diode effect. The switching circuit receives a first power source and a second power source, and selects between the two sources to provide the selected power source to a load device. The switching circuit includes a first transistor, and second and third transistors. The first transistor is connected to the first power source for selecting the first power source as the supply voltage of the load device. The second and third transistors are connected in series to the second power source for selecting the second power source. The second and third transistors are formed in two separate wells of a first conductivity type that are spaced apart and isolated from each other by a semiconductor region of a second conductivity type different from the first conductivity type. In operation, when the voltage level of the first power source is higher than a predetermined voltage, the first transistor is turned on to connect the first power source to the load device, and the second and third transistors are turned off to isolate the second power source from the load device. When its voltage falls below the predetermined voltage, however, the first transistor is turned off to isolate the first power source and the second and third transistors are turned on to connect the second power source to the load device.

    Abstract translation: 一种在半导体结构中形成的电源隔离和开关电路,其消除了寄生二极管效应。 开关电路接收第一电源和第二电源,并且在两个源之间进行选择以将所选择的电源提供给负载装置。 开关电路包括第一晶体管以及第二和第三晶体管。 第一晶体管连接到第一电源,用于选择第一电源作为负载装置的电源电压。 第二和第三晶体管串联连接到用于选择第二电源的第二电源。 第二和第三晶体管形成在第一导电类型的两个分离的阱中,这两个分开的阱通过不同于第一导电类型的第二导电类型的半导体区彼此间隔开并隔离。 在操作中,当第一电源的电压高于预定电压时,第一晶体管导通以将第一电源连接到负载装置,并且关断第二和第三晶体管以隔离第二电力 源自负载设备。 然而,当其电压下降到预定电压以下时,第一晶体管截止以隔离第一电源,并且第二和第三晶体管导通以将第二电源连接到负载装置。

    Configurable circuit and method for detecting the state of a switch
    19.
    发明授权
    Configurable circuit and method for detecting the state of a switch 有权
    用于检测开关状态的可配置电路和方法

    公开(公告)号:US07358628B2

    公开(公告)日:2008-04-15

    申请号:US10717103

    申请日:2003-11-19

    Applicant: Rong Yin

    Inventor: Rong Yin

    CPC classification number: H01H9/167 Y10T307/911

    Abstract: A circuit and method are disclosed for monitoring the state of at least one switch. The circuit may include a first circuit, coupled to a switch, for detecting whether the switch is in one of a closed state and an open state and generating a signal having a value based upon the detection. The circuit may further include a second circuit, coupled to the first circuit, for configuring the first circuit to selectively detect the switch switching from a normally open state and to selectively detect the switch switching from a normally closed state.

    Abstract translation: 公开了一种用于监视至少一个开关的状态的电路和方法。 电路可以包括耦合到开关的第一电路,用于检测开关是处于闭合状态和断开状态之一,并且基于检测产生具有值的信号。 电路还可以包括耦合到第一电路的第二电路,用于配置第一电路以选择性地检测开关从常开状态切换并选择性地检测从正常关闭状态的开关切换。

    Circuit and method for detecting the state of a switch
    20.
    发明授权
    Circuit and method for detecting the state of a switch 有权
    用于检测开关状态的电路和方法

    公开(公告)号:US06903584B2

    公开(公告)日:2005-06-07

    申请号:US10094165

    申请日:2002-03-08

    CPC classification number: H01H9/167 H03K17/18 Y10T307/74 Y10T307/766

    Abstract: A circuit and method are disclosed for detecting activation of a switch, such as a mechanical switch. The circuit may include a first circuit for temporarily driving the second terminal of the switch to a second logic level. A second circuit, coupled to the switch, senses a voltage level of the second terminal of the switch and generates an output signal representative of the voltage sensed. A sequential logic circuit is responsive to the output signal of the second circuit so as to maintain a logic value representative of the switch having been closed.

    Abstract translation: 公开了用于检测诸如机械开关的开关的激活的电路和方法。 电路可以包括用于将开关的第二端子临时驱动到第二逻辑电平的第一电路。 耦合到开关的第二电路感测开关的第二端子的电压电平,并产生表示所感测的电压的输出信号。 顺序逻辑电路响应于第二电路的输出信号,以便保持表示开关已经闭合的逻辑值。

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