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公开(公告)号：US08977197B2
公开(公告)日：2015-03-10
申请号：US13649801
申请日：2012-10-11
Applicant: QUALCOMM Incorporated
Inventor： Koushik Krishnan , Rainer Gaethke , Faramarz Sabouri
CPC classification number: G06K7/0008 , G06K7/10128 , H04B5/0031 , H04B5/0075 , H04B17/12
Abstract: A near-field communications (NFC) device includes an NFC antenna, a matching network coupled to the NFC antenna, and a transmitter coupled to the matching network. The transmitter applies a signal to the matching network and a capacitance of the matching network is varied. A parameter is measured while varying the capacitance of the matching network and while applying the signal. A peak value of the parameter is identified and compared to a threshold. A communication protocol is initiated in response to a determination that the peak value satisfies the threshold.
Abstract translation: 近场通信（NFC）设备包括NFC天线，耦合到NFC天线的匹配网络和耦合到匹配网络的发射机。 发射机向匹配网络施加信号，匹配网络的电容变化。 在改变匹配网络的电容和应用信号的同时测量参数。 识别参数的峰值并将其与阈值进行比较。 响应于峰值满足阈值的确定来启动通信协议。
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2.发明授权公开(公告)号：US09450646B2
公开(公告)日：2016-09-20
申请号：US13908875
申请日：2013-06-03
Applicant: QUALCOMM Incorporated
Inventor： Angelica Wong , Faramarz Sabouri
CPC classification number: H04B5/0031 , G06K7/0008 , G06K19/0723
Abstract: An NFC initiator device requests a passive communication mode by modulating a request onto a first carrier signal. In response thereto, the target device transmits a second carrier signal while still receiving the first carrier signal from the initiator device. The target device may modulate data onto the second carrier signal to convey information to the initiator device. The initiator device may detect changes in the load provided by the target device to interpret the data conveyed by the target device.
Abstract translation: NFC发起器设备通过将请求调制到第一载波信号上来请求无源通信模式。 响应于此，目标设备在仍然从发起者设备接收第一载波信号的同时发送第二载波信号。 目标设备可以将数据调制到第二载波信号上，以将信息传送到发起者设备。 发起者设备可以检测由目标设备提供的负载的变化，以解释由目标设备传送的数据。
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公开(公告)号：US09450626B2
公开(公告)日：2016-09-20
申请号：US14643498
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
Inventor： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi , Hasnain Mohammedi Lakdawala , Prashanth Akula , Faramarz Sabouri
CPC classification number: H04B1/16 , H04B1/1018 , H04B1/1027 , H04B1/1638 , H04B2001/0416
Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
Abstract translation: 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。
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公开(公告)号：US20160142085A1
公开(公告)日：2016-05-19
申请号：US14643498
申请日：2015-03-10
Applicant: QUALCOMM Incorporated
Inventor： Ojas Mahendra Choksi , Bin Fan , Bassel Hanafi , Hasnain Mohammedi Lakdawala , Prashanth Akula , Faramarz Sabouri
CPC classification number: H04B1/16 , H04B1/1018 , H04B1/1027 , H04B1/1638 , H04B2001/0416
Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.
Abstract translation: 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。
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公开(公告)号：US20160080018A1
公开(公告)日：2016-03-17
申请号：US14507623
申请日：2014-10-06
Applicant: QUALCOMM Incorporated
Inventor： Janakiram Ganesh Sankaranarayanan , Ojas Mahendra Choksi , Hasnain Mohammedi Lakdawala , Wei Zhuo , Faramarz Sabouri
Abstract: An apparatus including: at least one receiver having injection points and having at least an amplifier and a transformer; and a plurality of isolation switches coupled to injection points of the at least one receiver, the plurality of isolation switches configured to route a calibration signal generated by a transmitter to one of the injection points.
Abstract translation: 一种装置，包括：至少一个具有注入点并具有至少一个放大器和变压器的接收器; 以及耦合到所述至少一个接收器的注入点的多个隔离开关，所述多个隔离开关被配置为将由发射器产生的校准信号路由到所述注入点之一。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20140273830A1
公开(公告)日：2014-09-18
申请号：US13908875
申请日：2013-06-03
Applicant: QUALCOMM Incorporated
Inventor： Angelica Wong , Faramarz Sabouri
IPC: H04B5/00
CPC classification number: H04B5/0031 , G06K7/0008 , G06K19/0723
Abstract: An NFC initiator device requests a passive communication mode by modulating a request onto a first carrier signal. In response thereto, the target device transmits a second carrier signal while still receiving the first carrier signal from the initiator device. The target device may modulate data onto the second carrier signal to convey information to the initiator device. The initiator device may detect changes in the load provided by the target device to interpret the data conveyed by the target device.
Abstract translation: NFC发起器设备通过将请求调制到第一载波信号上来请求无源通信模式。 响应于此，目标设备在仍然从发起者设备接收第一载波信号的同时发送第二载波信号。 目标设备可以将数据调制到第二载波信号上，以将信息传送到发起者设备。 发起者设备可以检测由目标设备提供的负载的变化，以解释由目标设备传送的数据。
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公开(公告)号：US20140153616A1
公开(公告)日：2014-06-05
申请号：US13691238
申请日：2012-11-30
Applicant: QUALCOMM INCORPORATED
Inventor： Faramarz Sabouri , Alberto Cicalini
IPC: H04B1/40
Abstract: Techniques for providing a transceiver with a sliding intermediate frequency (IF). In an aspect, a PLL generates a single local oscillator (LO) signal used for both up-conversion by a transmit (TX) signal path and down-conversion by a receive (RX) signal path, wherein the LO frequency is chosen as the TX carrier frequency. As the TX and RX carrier frequencies may generally differ by a variable amount, the RX signal path utilizing the (TX) LO frequency for down-conversion may be characterized as having a “sliding” IF. To accommodate the sliding IF receiver architecture, specific processing functions such as charge sampling, discrete-time analog band-pass filtering, and sub-sampling analog-to-digital conversion (ADC) are described.
Abstract translation: 提供具有滑动中频（IF）的收发器的技术。 在一方面，PLL产生用于由发送（TX）信号路径进行上转换的单个本地振荡器（LO）信号，并且由接收（RX）信号路径进行下变频，其中LO频率被选择为 TX载波频率。 由于TX和RX载波频率通常可以相差可变量，所以利用（TX）LO频率进行下变频的RX信号路径可被表征为具有“滑动”IF。 为了适应滑动IF接收器架构，描述了诸如电荷采样，离散时间模拟带通滤波和子采样模数转换（ADC）的特定处理功能。
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公开(公告)号：US20140080414A1
公开(公告)日：2014-03-20
申请号：US14020702
申请日：2013-09-06
Applicant: QUALCOMM Incorporated
Inventor： RaviKiran Gopalan , James Y. Hurt , Faramarz Sabouri , Thinh Nguyen
IPC: H04B5/00
CPC classification number: H04B5/0043 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04B5/0093
Abstract: Systems, methods, and devices for wireless communication are included herein. An aspect of the subject matter described in the disclosure provides a device configured to detect a transmission. The device includes a receiver configured to receive an inductive communication signal having a center frequency. The device further includes an analog-to-digital converter configured to sample the signal at a rate higher than twice the center frequency. The device further includes one or more processors configured to digitally downconvert the signal. The processors are further configured to compare an energy of the downconverted signal to a detection threshold. The device further includes a transmitter configured to selectively transmit a communication based on the comparison.
Abstract translation: 本文包括用于无线通信的系统，方法和设备。 在本公开中描述的主题的一个方面提供了被配置为检测传输的设备。 该设备包括接收器，其被配置为接收具有中心频率的感应通信信号。 该装置还包括配置成以高于中心频率两倍的速率对信号进行采样的模拟 - 数字转换器。 该设备还包括被配置为数字地下变频信号的一个或多个处理器。 处理器还被配置为将下变频信号的能量与检测阈值进行比较。 所述设备还包括被配置为基于所述比较选择性地发送通信的发射机。
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公开(公告)号：US20240430071A1
公开(公告)日：2024-12-26
申请号：US18340787
申请日：2023-06-23
Applicant: QUALCOMM Incorporated
Inventor： Faramarz Sabouri , Ahmed Abbas Mohamed Helmy , Mehran Bakhshiani , Bindu Gupta
Abstract: This disclosure provides systems, methods, and devices for wireless communications that support enhanced phase calibration operations. In a first aspect, an apparatus for wireless communications includes a processing system. The processing system is configured to cause the wireless communication device to: receive a reference signal at a respective input of a plurality of receive chains; process, by each receive chain, the reference signal to generate a respective output signal; determine, for each receive chain, a phase alignment difference between the respective output signal of the receive chain and a reference output signal of a reference receive chain of the plurality of receive chains; and adjust a phase alignment of a divider of at least one receive chain of the plurality of receive chains based on the determined phase alignment difference for the at least one receive chain. Other aspects and features are also claimed and described.
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10.发明授权公开(公告)号：US09130603B2
公开(公告)日：2015-09-08
申请号：US14020702
申请日：2013-09-06
Applicant: QUALCOMM Incorporated
Inventor： RaviKiran Gopalan , James Y. Hurt , Faramarz Sabouri , Thinh Nguyen
IPC: H04B5/00
CPC classification number: H04B5/0043 , H04B5/0031 , H04B5/0037 , H04B5/0075 , H04B5/0093
Abstract: Systems, methods, and devices for wireless communication are included herein. An aspect of the subject matter described in the disclosure provides a device configured to detect a transmission. The device includes a receiver configured to receive an inductive communication signal having a center frequency. The device further includes an analog-to-digital converter configured to sample the signal at a rate higher than twice the center frequency. The device further includes one or more processors configured to digitally downconvert the signal. The processors are further configured to compare an energy of the downconverted signal to a detection threshold. The device further includes a transmitter configured to selectively transmit a communication based on the comparison.
Abstract translation: 本文包括用于无线通信的系统，方法和设备。 在本公开中描述的主题的一个方面提供了被配置为检测传输的设备。 该设备包括接收器，其被配置为接收具有中心频率的感应通信信号。 该装置还包括配置成以高于中心频率两倍的速率对信号进行采样的模拟 - 数字转换器。 该设备还包括被配置为数字地下变频信号的一个或多个处理器。 处理器还被配置为将下变频信号的能量与检测阈值进行比较。 该设备还包括被配置为基于该比较选择性地发送通信的发射机。
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