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公开(公告)号：US20160164617A1
公开(公告)日：2016-06-09
申请号：US14562255
申请日：2014-12-05
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Mahdi Ghahramani , Mazhareddin Taghivand , Rainer Gaethke , Niranjan Anand Talwalkar , Roger Brockenbrough
CPC classification number: H04B15/02 , H04B5/0031 , H04B5/0075 , H04W88/06
Abstract: A method for inductively coupled communication is described. The method includes generating a first signal. The first signal frequency is a first integer multiple of a carrier frequency for inductively coupled communication. The method also includes selecting between a standalone mode and a coexistence mode. The method further includes dividing the first signal to obtain a second signal when in standalone mode. The second signal frequency is a second integer multiple of the carrier frequency. The method additionally includes dividing the first signal to obtain a third signal when in coexistence mode. The third signal frequency is a third integer multiple of the carrier frequency. The method also includes generating an inductively coupled communication signal using at least one of the second signal and the third signal.
Abstract translation: 描述了一种用于电感耦合通信的方法。 该方法包括产生第一信号。 第一信号频率是用于电感耦合通信的载波频率的第一整数倍。 该方法还包括在独立模式和共存模式之间进行选择。 该方法还包括在独立模式下划分第一信号以获得第二信号。 第二信号频率是载波频率的第二整数倍。 该方法还包括在共存模式下划分第一信号以获得第三信号。 第三信号频率是载波频率的第三整数倍。 该方法还包括使用第二信号和第三信号中的至少一个产生电感耦合的通信信号。
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公开(公告)号：US09577718B2
公开(公告)日：2017-02-21
申请号：US14547837
申请日：2014-11-19
Applicant: QUALCOMM Incorporated
Inventor： Rainer Gaethke , Mohammad Mahdi Ghahramani
IPC: H04B5/00 , H04W4/00 , H04L27/148 , H04W56/00
CPC classification number: H04B5/0093 , H04B5/0031 , H04B5/0056 , H04B5/0075 , H04L27/148 , H04W4/80 , H04W56/0035
Abstract: A method for inductively coupled communications is described. The method includes generating a retransmitted modulated signal that is stronger than a received signal from a first device. The method also includes generating a suppressed carrier signal from the retransmitted modulated signal for retransmission to the first device. The method further includes filtering a superimposed signal of the suppressed carrier signal on the received signal to attenuate modulation sidebands. The method additionally includes synchronizing to the first device based on the filtered signal.
Abstract translation: 描述了用于电感耦合通信的方法。 该方法包括产生比来自第一设备的接收信号更强的重传调制信号。 该方法还包括从重传的调制信号产生抑制的载波信号以重发到第一设备。 该方法还包括对接收信号上的抑制载波信号的叠加信号进行滤波，以衰减调制边带。 该方法还包括基于滤波信号与第一设备同步。
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Patent Agency Ranking
3.发明授权公开(公告)号：US09685931B2
公开(公告)日：2017-06-20
申请号：US14471608
申请日：2014-08-28
Applicant: QUALCOMM Incorporated
Inventor： Mazhareddin Taghivand , Tong Zhang , Mohammad Mahdi Ghahramani
CPC classification number: H03H11/1204 , H03H7/0153 , H03H7/21 , H03H11/22 , H03H17/0273 , H03H2218/04
Abstract: Certain aspects of the present disclosure provide circuits for generating high accuracy millimeter wave or radio frequency (RF) wideband in-phase (I) and quadrature (Q) oscillating signals having acceptable amplitude and phase mismatch over process, voltage, and temperature (PVT) variations with reduced cost, area, and power consumption. In one example apparatus, a polyphase filter having a first stage and a second stage is provided. Each stage comprises resistive elements and capacitive elements. Certain aspects of the present disclosure provide for intentional resistive and/or capacitive value mismatch between the resistive or capacitive values of one or multiple stages such that the phase mismatch between the resulting I and Q signals may be reduced without degrading the amplitude mismatch. Certain aspects of the present disclosure provide for replacing the resistive elements in at least one stage with transistors operating in the triode region, where the on-resistance is controlled by a feedback network.
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公开(公告)号：US09548767B2
公开(公告)日：2017-01-17
申请号：US14532309
申请日：2014-11-04
Applicant: QUALCOMM Incorporated
Inventor： Abbas Komijani , Mohammad Bagher Vahid Far , Amirpouya Kavousian , Alireza Khalili , Yashar Rajavi , Lalitkumar Nathawad , Mohammad Mahdi Ghahramani
CPC classification number: H04B1/0064 , H04B1/16 , H04B5/0031 , H04B5/0087 , H04B5/0093
Abstract: A multi-band amplifier may operate in a first frequency band and a second frequency band. The multi-band amplifier may include a first amplifier, a second amplifier, and a coupler. The coupler may couple a signal, such as a communication signal, to a selected amplifier. In some embodiments, the coupler may include one or more inductive elements to couple the signal to the first or the second amplifier. In some embodiments, the inductive elements may include a balun.
Abstract translation: 多频带放大器可以在第一频带和第二频带中操作。 多频带放大器可以包括第一放大器，第二放大器和耦合器。 耦合器可以将诸如通信信号的信号耦合到所选择的放大器。 在一些实施例中，耦合器可以包括一个或多个感应元件以将信号耦合到第一或第二放大器。 在一些实施例中，感应元件可包括平衡 - 不平衡转换器。
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公开(公告)号：US09831960B2
公开(公告)日：2017-11-28
申请号：US14562255
申请日：2014-12-05
Applicant: QUALCOMM Incorporated
Inventor： Mohammad Mahdi Ghahramani , Mazhareddin Taghivand , Rainer Gaethke , Niranjan Anand Talwalkar , Roger Brockenbrough
CPC classification number: H04B15/02 , H04B5/0031 , H04B5/0075 , H04W88/06
Abstract: A method for inductively coupled communication is described. The method includes generating a first signal. The first signal frequency is a first integer multiple of a carrier frequency for inductively coupled communication. The method also includes selecting between a standalone mode and a coexistence mode. The method further includes dividing the first signal to obtain a second signal when in standalone mode. The second signal frequency is a second integer multiple of the carrier frequency. The method additionally includes dividing the first signal to obtain a third signal when in coexistence mode. The third signal frequency is a third integer multiple of the carrier frequency. The method also includes generating an inductively coupled communication signal using at least one of the second signal and the third signal.
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公开(公告)号：US09673964B2
公开(公告)日：2017-06-06
申请号：US14625518
申请日：2015-02-18
Applicant: QUALCOMM Incorporated
CPC classification number: H04L7/0012 , H04B5/0031 , H04L7/0331
Abstract: An example method for active load modulation includes determining a modulated portion and an unmodulated portion of a bit. Further, the example method includes during the modulated portion of the bit, holding a phase of a received carrier signal. In addition, the example method includes, during the unmodulated portion of the bit, synchronizing to the received carrier signal.
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公开(公告)号：US20160142113A1
公开(公告)日：2016-05-19
申请号：US14547837
申请日：2014-11-19
Applicant: QUALCOMM Incorporated
Inventor： Rainer Gaethke , Mohammad Mahdi Ghahramani
IPC: H04B5/00 , H04L27/148 , H04W56/00 , H04W4/00
CPC classification number: H04B5/0093 , H04B5/0031 , H04B5/0056 , H04B5/0075 , H04L27/148 , H04W4/80 , H04W56/0035
Abstract: A method for inductively coupled communications is described. The method includes generating a retransmitted modulated signal that is stronger than a received signal from a first device. The method also includes generating a suppressed carrier signal from the retransmitted modulated signal for retransmission to the first device. The method further includes filtering a superimposed signal of the suppressed carrier signal on the received signal to attenuate modulation sidebands. The method additionally includes synchronizing to the first device based on the filtered signal.
Abstract translation: 描述了用于电感耦合通信的方法。 该方法包括产生比来自第一设备的接收信号更强的重传调制信号。 该方法还包括从重传的调制信号产生抑制的载波信号以重发到第一设备。 该方法还包括对接收信号上的抑制载波信号的叠加信号进行滤波，以衰减调制边带。 该方法还包括基于滤波信号与第一设备同步。
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