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    COMMUNICATION DEVICE WITH NARROW-GROUND-CLEARANCE ANTENNA ELEMENT
    1.
    发明申请
    COMMUNICATION DEVICE WITH NARROW-GROUND-CLEARANCE ANTENNA ELEMENT 有权

    公开(公告)号：US20170264975A1

    公开(公告)日：2017-09-14

    申请号：US15137712

    申请日：2016-04-25

    申请人： Acer Incorporated

    发明人： Kin-Lu Wong ,  Hsuan-Jui Chang

    IPC分类号： H04Q1/48 ,  H01Q1/24

    CPC分类号： H04Q1/48 ,  H01Q1/243 ,  H01Q5/328 ,  H01Q5/385

    摘要： A communication device including a system circuit board and an antenna element is presented. A radiation metal strip of the antenna element does not lie on the same surface as the system circuit board. The radiation metal strip and a ground plane are separated by a clearance region. The radiation metal strip comprises a first metal strip, a second metal strip, and a coupling metal strip. A first end is located in the first metal strip and connected to the ground plane by a first inductive element. A second end is located in the second metal strip and connected to the ground plane by a second inductive element. A first gap is located between the coupling metal strip and the first metal strip. A second gap is located between the coupling metal strip and the second metal strip. The coupling metal strip is connected to a signal source.

    Monitor/hands-free intercom
    2.
    发明授权
    Monitor/hands-free intercom 失效
    监控/免提对讲机

    公开(公告)号：US6091329A

    公开(公告)日：2000-07-18

    申请号：US937482

    申请日：1997-09-25

    申请人： Perran V. L. Newman

    发明人： Perran V. L. Newman

    IPC分类号： G08B21/02 ,  H04B1/40 ,  H04Q1/48

    CPC分类号： G08B21/0208 ,  G08B21/0222 ,  H04B1/40

    摘要： A monitor/hands-free intercom system includes a child unit and a parent unit which are each transceivers. The parent unit operates primarily as a receiver, unless and until a talk switch is actuated on the parent unit, enabling the parent unit to transition to a transmitter. The child unit acts primarily as a transmitter unless and until it detects a carrier signal at the appropriate frequency during one of its short sniff periods. If a carrier signal is detected, the child unit extends the sniff period to look for a non-audible hidden tone encoded into the transmission from the parent unit. If the hidden tone is detected, the child unit transitions to a receiver mode and is able to play back the sound waves detected by the parent unit so that the parent can reassure or provide instructions to the child.

    摘要翻译： 监视器/免提对讲系统包括每个收发器的子单元和母单元。 母单元主要作为接收器工作，除非和直到在主单元上启动通话开关，才能使母单元转换到发送器。 子单元主要作为发射器起作用，除非并且直到在其短的嗅觉周期之一期间以适当的频率检测到载波信号。 如果检测到载波信号，则子单元延长嗅探周期以从母单元寻找编码到传输中的非可听隐藏音。 如果检测到隐藏音，则子单元转换到接收器模式并且能够播放由父单元检测到的声波，使得父母可以向孩子放心或提供指令。

    Communication device with narrow-ground-clearance antenna element
    4.
    发明授权
    Communication device with narrow-ground-clearance antenna element 有权

    公开(公告)号：US09980018B2

    公开(公告)日：2018-05-22

    申请号：US15137712

    申请日：2016-04-25

    申请人： Acer Incorporated

    发明人： Kin-Lu Wong ,  Hsuan-Jui Chang

    IPC分类号： H01Q1/24 ,  H01Q5/00 ,  H04Q1/48 ,  H01Q5/328 ,  H01Q5/385

    CPC分类号： H04Q1/48 ,  H01Q1/243 ,  H01Q5/328 ,  H01Q5/385

    摘要： A communication device including a system circuit board and an antenna element is presented. A radiation metal strip of the antenna element does not lie on the same surface as the system circuit board. The radiation metal strip and a ground plane are separated by a clearance region. The radiation metal strip comprises a first metal strip, a second metal strip, and a coupling metal strip. A first end is located in the first metal strip and connected to the ground plane by a first inductive element. A second end is located in the second metal strip and connected to the ground plane by a second inductive element. A first gap is located between the coupling metal strip and the first metal strip. A second gap is located between the coupling metal strip and the second metal strip. The coupling metal strip is connected to a signal source.

    Method and system for contactless exchange of data between a read/write unit and one or more information carriers
    5.
    发明授权
    Method and system for contactless exchange of data between a read/write unit and one or more information carriers 失效
    用于在读/写单元和一个或多个信息载体之间非接触地交换数据的方法和系统

    公开(公告)号：US6014088A

    公开(公告)日：2000-01-11

    申请号：US758370

    申请日：1996-11-29

    申请人： Ronald Barend Van Santbrink ,  Dirk Langedijk ,  Jan Peter Exalto

    发明人： Ronald Barend Van Santbrink ,  Dirk Langedijk ,  Jan Peter Exalto

    IPC分类号： G06K19/07 ,  H04Q1/48

    CPC分类号： G06K7/10039 ,  G06K19/0723

    摘要： A method and system for contactless exchange of information between a read/write unit and at least one information carrier, using wireless radiofrequency signal transmission including an input/output circuit and associated coil device and the information carrier including another input/output circuit and associated coil device, and each further including a processing circuit. The read/write unit transmits radiofrequency signals divided in time slots, each successively including a sync pulse and a single data bit. The radiofrequency signal is suppressed in each time slot for a period differing in length for the one and the zero data bit. The data bit signal, received in the read/write unit solely during transmission of the radiofrequency signal, is sampled, after rectification, for detection of the data bits of the information carrier. The read/write units is provided with a detector having two sample and hold circuits in parallel, to which the input signal after rectification is applied in parallel and to which sampling pulses are applied by the processing circuit for sampling successively in time of the signal.

    摘要翻译： 一种用于使用包括输入/​​输出电路和相关联的线圈装置的无线射频信号传输在读/写单元与至少一个信息载体之间非接触地交换信息的方法和系统，以及包括另一个输入/输出电路和相关线圈的信息载体 装置，并且每个还包括处理电路。 读/写单元发送以时隙划分的射频信号，每个时隙依次包括同步脉冲和单个数据位。 在每个时隙中对一个和零个数据位的长度不同的时段抑制射频信号。 仅在发送射频信号期间在读/写单元中接收的数据位信号在整流之后被采样，用于检测信息载体的数据位。 读/写单元设置有具有并联的两个采样和保持电路的检测器，并联施加整流后的输入信号，并且由处理电路施加采样脉冲以在该信号的时间连续采样。