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公开(公告)号：US09515750B2
公开(公告)日：2016-12-06
申请号：US14863131
申请日：2015-09-23
Applicant: QUALCOMM Incorporated
Inventor： Mahbod Mofidi , Kritarth Yudhish , Bakhtiyar Neymanov , John Saad, Jr. , Stephen Frankland
CPC classification number: H04B17/21 , G06K7/10336 , H04B5/0031 , H04B5/0075 , H04B17/14
Abstract: A method for inductively coupled communication is described. The method includes applying a carrier signal at a carrier frequency to an antenna circuit. The antenna circuit includes an antenna and a matching network that resonate at a resonant frequency. The method also includes measuring a looped-back signal over a range of impedance values. The looped-back signal includes the carrier signal received by a receiver coupled to the antenna circuit. The method further includes setting a calibrated impedance as an impedance configuration that produces a resonance peak in the looped-back signal.
Abstract translation: 描述了一种用于电感耦合通信的方法。 该方法包括以载频将载波信号应用于天线电路。 天线电路包括天线和谐振频率共振的匹配网络。 该方法还包括测量阻抗值范围内的环回信号。 环回信号包括由耦合到天线电路的接收器接收的载波信号。 该方法还包括将校准的阻抗设置为在环回信号中产生谐振峰值的阻抗配置。
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公开(公告)号：US10560829B2
公开(公告)日：2020-02-11
申请号：US15241784
申请日：2016-08-19
Applicant: QUALCOMM Incorporated
Inventor： Anssi Haverinen , Wen-Hsing Chen , Le Luong , Changhau Lee , John Saad, Jr.
Abstract: In one aspect, a method of wireless communication by a wireless device includes generating, by the wireless device, a protocol data unit (PDU) header and a corresponding PDU payload of an angle of arrival (AoA) packet. The generating of the PDU payload includes inserting a supplemental field and a cyclic redundancy check (CRC) field into the PDU payload. The supplemental field is configured to enable another wireless device to determine an angle of arrival of the AoA packet and the CRC field corresponds to a CRC of at least the supplemental field. The method also includes transmitting the AoA packet with a single antenna of the wireless device.
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