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    2.
    发明专利
    未知

    公开(公告)号：DE602005010849D1

    公开(公告)日：2008-12-18

    申请号：DE602005010849

    申请日：2005-04-15

    Applicant: MICROCHIP TECH INC

    Inventor： LEE THOMAS YOUBOK ,  NOLAN JAMES B ,  VERNIER STEVE ,  LOURENS RUAN ,  DELPORT VIVIEN ,  LAMPHIER ALAN ,  SULLIVAN GLEN ALLEN

    IPC: G06K19/07 ,  G07C9/00

    Abstract: A multi-channel remote keyless entry (RKE) transponder having dynamically re-configurable input channel selection, channel disable, settable sensitivity for each channel, wake-up filter timing parameters, automatic gain control hold, internal tuning capacitor selection for each channel's antenna, minimum modulation depth requirement for input signal and bi-directional talk-back. Programmable minimum modulation depth requirement reduces false wake-up of the RKE transponder. An antenna for each channel of the RKE transponder may be tuned with internal tuning capacitors for improved range and receiver sensitivity. The internal tuning capacitor parameters may be stored in a configuration register. Gain of the channel may be fixed while the antenna is tuned. The antennas may be de-queued for talk-back to a base station for low frequency bi-directional communications. An external control device may dynamically read from and write to the configuration registers via a serial communications interface.

    READ AND WRITE INTERFACE COMMUNICATIONS PROTOCOL FOR DIGITAL-TO-ANALOG SIGNAL CONVERTER WITH NON-VOLATILE MEMORY
    3.
    发明申请
    READ AND WRITE INTERFACE COMMUNICATIONS PROTOCOL FOR DIGITAL-TO-ANALOG SIGNAL CONVERTER WITH NON-VOLATILE MEMORY 审中-公开
    用于具有非易失性存储器的数字到模拟信号转换器的读和写接口通信协议

    公开(公告)号：WO2008127988A3

    公开(公告)日：2008-12-04

    申请号：PCT/US2008059918

    申请日：2008-04-10

    Applicant: MICROCHIP TECH INC ,  LEE THOMAS YOUBOK ,  JACKSON JONATHAN ,  AUSTIN JOHN ,  SWANECK ANDREW ,  JOHNER YANN

    Inventor： LEE THOMAS YOUBOK ,  JACKSON JONATHAN ,  AUSTIN JOHN ,  SWANECK ANDREW ,  JOHNER YANN

    IPC: H03M1/66

    CPC classification number: H03M1/66

    Abstract: A mixed signal device, e.g., digital-to-analog converter (DAC) device has a serial interface communication protocol that accesses volatile and/or nonvolatile memory and allows a preprogrammed output voltage whenever the mixed signal device is powered-up. However, unlike conventional DAC devices, DAC devices with non-volatile memory may need special interface communication protocols for effective operation of the DAC device and communications between a system master controller unit (MCU). Interface communications protocols that do not violate standard serial bus communications protocols are provided for communicating between the volatile and non- volatile memories of the DAC device so that the MCU may access the DAC device's memories (non-volatile and/or volatile memories).

    Abstract translation: 混合信号装置，例如数模转换器（DAC）装置具有串行接口通信协议，该协议访问易失性和/或非易失性存储器，并且每当混合信号装置通电时允许预编程的输出电压。 然而，与传统DAC器件不同，具有非易失性存储器的DAC器件可能需要特殊的接口通信协议来有效地操作DAC器件以及系统主控制器单元（MCU）之间的通信。 提供了不违反标准串行总线通信协议的接口通信协议，用于在DAC器件的易失性和非易失性存储器之间进行通信，以便MCU可以访问DAC器件的存储器（非易失性和/或易失性存储器）。

    READ AND WRITE INTERFACE COMMUNICATIONS PROTOCOL FOR DIGITAL-TO-ANALOG SIGNAL CONVERTER WITH NON-VOLATILE MEMORY
    4.
    发明申请
    READ AND WRITE INTERFACE COMMUNICATIONS PROTOCOL FOR DIGITAL-TO-ANALOG SIGNAL CONVERTER WITH NON-VOLATILE MEMORY 审中-公开
    具有非易失性存储器的数字 - 模拟信号转换器的读写接口通信协议

    公开(公告)号：WO2009091806A3

    公开(公告)日：2009-09-24

    申请号：PCT/US2009030960

    申请日：2009-01-14

    Applicant: MICROCHIP TECH INC ,  LEE THOMAS YOUBOK ,  JOHNER YANN ,  GIMMEL PHILIPPE ,  SHERMAN TIM ,  JACKSON JONATHAN ,  AUSTIN JOHN

    Inventor： LEE THOMAS YOUBOK ,  JOHNER YANN ,  GIMMEL PHILIPPE ,  SHERMAN TIM ,  JACKSON JONATHAN ,  AUSTIN JOHN

    IPC: H03M1/66

    CPC classification number: H03M1/66

    Abstract: A mixed signal integrated circuit device, e.g., digital-to-analog converter (DAC), has a serial interface communication protocol that accesses volatile and/or non-volatile memory and allows a preprogrammed output voltage whenever the mixed signal device is powered- up. However, unlike conventional DACs, DACs with non- volatile memory may need special interface communication protocols for effective operation of the DAC and communications between a system master controller unit (MCU). Interface communications protocols that do not violate standard serial bus communications protocols are provided for communicating between the volatile and non- volatile memories of the DAC so that the MCU may access the DACs memories (non-volatile and/or volatile memories). The mixed signal integrated circuit device has a user programmable address.

    Abstract translation: 混合信号集成电路器件（例如数模转换器（DAC））具有串行接口通信协议，该协议访问易失性和/或非易失性存储器并且每当混合信号器件加电时允许预编程的输出电压 。 但是，与传统DAC不同，具有非易失性存储器的DAC可能需要特殊的接口通信协议才能有效操作DAC以及系统主控制器单元（MCU）之间的通信。 提供不违反标准串行总线通信协议的接口通信协议用于在DAC的易失性和非易失性存储器之间进行通信，以便MCU可以访问DAC存储器（非易失性和/或易失性存储器）。 混合信号集成电路器件具有用户可编程地址。

    REDUCING FALSE WAKE-UP IN A LOW FREQUENCY TRANSPONDER
    5.
    发明申请
    REDUCING FALSE WAKE-UP IN A LOW FREQUENCY TRANSPONDER 审中-公开
    减少在低频传输器中的假冒唤醒

    公开(公告)号：WO2005104006A3

    公开(公告)日：2006-03-30

    申请号：PCT/US2005012934

    申请日：2005-04-14

    Applicant: MICROCHIP TECH INC ,  NOLAN JAMES B ,  LEE THOMAS YOUBOK ,  LAMPHIER ALAN ,  LOURENS RUAN ,  VERNIER STEVE

    Inventor： NOLAN JAMES B ,  LEE THOMAS YOUBOK ,  LAMPHIER ALAN ,  LOURENS RUAN ,  VERNIER STEVE

    IPC: G06K7/00 ,  G06K19/07 ,  G07C9/00 ,  H04Q5/22

    CPC classification number: G06K19/0705 ,  G06K19/0723 ,  G07C9/00309 ,  G07C2009/0038

    Abstract: A bidirectional remote keyless entry (RKE) transponder comprises an analog front-end (AFE) having a programmable wake-up filter that predefines the waveform timing of the desired input signal, minimum modulation depth requirement of input signal, and independently controllable channel gain reduction of each of its three channels, X, Y, and Z. The wake-up filter parameters are the length of high and low durations of wake-up pulses that may be programmed in a configuration register. The wake-up filter allows the AFE to output demodulated data if the input signal meets its wake-up filter requirement, but does not output the demodulated data otherwise. The AFE output pin is typically connected to an eternal device for control, such as a microcontroller (MCU). The external device typically stays in low current sleep (or standby) mode when the AFE has no output and switches to high current wake-up (or active) mode when the AFE has output. Therefore, in order to keep the eternal control device in the low current sleep mode when there is no desired input signal, it is necessary to keep no output at the AFE output pin. This can be achieved by controlling the wake-up filter parameters, minimum modulation depth requirement of input signal, and. channel gains of the AFE device. These features can reduce false-wake up of the bidirectional RKE transponder due to undesired input signals such as noise signals.

    Abstract translation: 双向远程无钥匙进入（RKE）转发器包括具有可编程唤醒滤波器的模拟前端（AFE），其预定义所需输入信号的波形定时，输入信号的最小调制深度要求以及独立可控的信道增益减小 的三个通道中的每一个，X，Y和Z.唤醒滤波器参数是可以在配置寄存器中编程的唤醒脉冲的高和低持续时间的长度。 唤醒滤波器允许AFE在输入信号满足唤醒滤波器要求时输出解调数据，否则不输出解调数据。 AFE输出引脚通常连接到用于控制的永久性设备，例如微控制器（MCU）。 当AFE没有输出时，外部设备通常保持在低电流休眠（或待机）模式，并且当AFE输出时，外部设备切换到高电流唤醒（或有效）模式。 因此，为了在不需要输入信号的情况下将永久控制装置保持在低电流睡眠模式，需要在AFE输出引脚处不输出。 这可以通过控制唤醒滤波器参数，输入信号的最小调制深度要求来实现。 AFE设备的通道增益。 这些功能可以减少由于不期望的输入信号（如噪声信号）引起的双向RKE转发器的假唤醒。

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