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Patent Agency Ranking
公开(公告)号：AT478478T
公开(公告)日：2010-09-15
申请号：AT05736311
申请日：2005-04-15
Applicant: MICROCHIP TECH INC
Inventor： LEE THOMAS , NOLAN JAMES , VERNIER STEVE , YACH RANDY , LAMPHIER ALAN
Abstract: A remote keyless entry (RKE) transponder has a programmable selective wake-up filter for determining whether the RKE transponder should wake-up to process a received signal. The wake-up filter correlates the timing of an input signal's carrier amplitude on and off time periods to a predefined programmable time period profile for a desired signal which has a certain carrier on time (time period on) and a certain carrier off time (time period off) arranged into a coded “header.” When a received signal matches the predefined time period profile, then the RKE transponder will wake-up to process the incoming signal data. The predefined time period profile may be programmable and may be stored in a header configuration register. Each RKE transponder has unique predefined time period on and time period off profiles.
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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
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.
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公开(公告)号：DE602005023011D1
公开(公告)日：2010-09-30
申请号：DE602005023011
申请日：2005-04-15
Applicant: MICROCHIP TECH INC
Inventor： LEE THOMAS YOUBOK , NOLAN JAMES B , VERNIER STEVE , YACH RANDY , LAMPHIER ALAN
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公开(公告)号：AT413663T
公开(公告)日：2008-11-15
申请号：AT05736190
申请日：2005-04-15
Applicant: MICROCHIP TECH INC
Inventor： LEE THOMAS , NOLAN JAMES , VERNIER STEVE , LOURENS RUAN , DELPORT VIVIEN , LAMPHIER ALAN , SULLIVAN GLEN
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.
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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
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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