Dual antenna diversity transmitter and system with improved power amplifier efficiency
    1.
    发明授权
    Dual antenna diversity transmitter and system with improved power amplifier efficiency 失效
    双天线分集发射机和具有改善的功率放大器效率的系统

    公开(公告)号:US07142829B2

    公开(公告)日:2006-11-28

    申请号:US10836382

    申请日:2004-05-03

    IPC分类号: H03C7/02 H04B1/02 H04B7/02

    摘要: Provided is a dual antenna diversity transmitter and system having improved power amplifier efficiency, and further comprising switches in the dual antenna diversity transmitter and system, to minimize a DC input power consumed by the power amplifier depending on the required transmitting output power and operate efficiently the power amplifier, whereby signal linearity can be maintained and the power amplifier can be efficiently operated in a more simplified manner, as compared to the conventional high efficiency power amplifier.

    摘要翻译: 提供了具有改进的功率放大器效率的双天线分集发射机和系统,并且还包括双天线分集发射机和系统中的交换机,以根据所需的发射输出功率最小化由功率放大器消耗的DC输入功率,并且有效地操作 功率放大器,与传统的高效率功率放大器相比,可以保持信号线性度并且能够以更简化的方式有效地操作功率放大器。

    Communication System Using Frequency According to Security or Transmission Distance
    2.
    发明申请
    Communication System Using Frequency According to Security or Transmission Distance 审中-公开
    根据安全或传输距离使用频率的通信系统

    公开(公告)号:US20080259827A1

    公开(公告)日:2008-10-23

    申请号:US12096569

    申请日:2006-12-06

    CPC分类号: H04B13/005

    摘要: A communication system using a frequency determined according to information security protection or a transmission distance of a signal is provided. A local area communication requiring information security protection uses a frequency less than a predetermined frequency, and a local or wide area communication requiring no information security protection uses a frequency greater than predetermined frequency, thereby providing an effective communication environment based on information security protection, a communication distance, and communication characteristics satisfying frequency characteristics of a transmission medium, and accordingly increasing a communication field.

    摘要翻译: 提供了使用根据信息安全保护或信号的传输距离确定的频率的通信系统。 需要信息安全保护的本地通信使用小于预定频率的频率,并且不需要信息安全保护的本地或广域通信使用大于预定频率的频率,从而基于信息安全保护提供有效的通信环境, 通信距离和满足传输介质的频率特性的通信特性,从而增加通信场。

    Dmb Receiver and Receiving Method Using Human Body Antenna
    3.
    发明申请
    Dmb Receiver and Receiving Method Using Human Body Antenna 审中-公开
    使用人体天线的接收和接收方式

    公开(公告)号:US20080158432A1

    公开(公告)日:2008-07-03

    申请号:US11914070

    申请日:2006-03-13

    IPC分类号: H04N5/44

    摘要: Provided is a T-DMB receiver and receiving method using a human body as an antenna. The T-DMB receiver includes: an electrode making contact with a human body; a low frequency amplifier receiving via the electrode a current flowing through the human body due to a DMB broadcasting signal emitted by a terrestrial relay station and amplifying the received current; and an impedance matching circuit located between the electrode and the low frequency amplifier and matching an impedance of the human body with an impedance of the low frequency amplifier. Accordingly, a T-DMB receiver easy to carry without a separate antenna can be implemented.

    摘要翻译: 提供了一种使用人体作为天线的T-DMB接收机和接收方法。 T-DMB接收机包括:与人体接触的电极; 低频放大器,由于由地面中继站发射的DMB广播信号,经由电极接收流过人体的电流,并放大接收的电流; 以及阻抗匹配电路,位于电极和低频放大器之间,并将人体的阻抗与低频放大器的阻抗相匹配。 因此,可以实现在没有单独的天线的情况下容易携带的T-DMB接收机。

    Method and Apparatus for Providing Touch and Play (Tap) - Based Service and System Using the Method and Apparatus
    4.
    发明申请
    Method and Apparatus for Providing Touch and Play (Tap) - Based Service and System Using the Method and Apparatus 有权
    使用方法和装置提供触摸(Tap)的服务和系统的方法和装置

    公开(公告)号:US20080294722A1

    公开(公告)日:2008-11-27

    申请号:US12096366

    申请日:2006-12-05

    IPC分类号: H04B13/00 G06F15/16

    CPC分类号: H04B13/005

    摘要: Provided are a method, apparatus and system for providing a touch and play (TAP)-based service. The method includes setting respective device identifiers of a plurality of devices which can be connected to a device using an organism as a transmission channel and setting services to be provided to a user through the interaction between the device and each of the devices corresponding to the device identifiers, respectively; having at least two execution levels so that one of the at least two execution levels can be selected in order to determine whether to execute a service in cooperation with one of the devices and setting one of the at least two execution levels according to an input from a user; receiving a device identifier of another device if the device is connected to one of the devices using the organism as the transmission channel; recognizing services set for the other device and identifying a service that is to be provided to the user through the interaction between the device and the other device; determining whether to execute the identified service according to the set execution level; and automatically recognizing information required to provide the service that is determined to be executed in cooperation with the other device and executing the determined service. When the method, apparatus and the system are used, a user can receive a desired service by simply touching two devices.

    摘要翻译: 提供了一种用于提供基于触摸和播放(TAP)的服务的方法,装置和系统。 该方法包括将能够使用生物体连接到设备的多个设备的各个设备标识符设置为传输信道,并且通过设备与对应于设备的每个设备之间的交互来设置将要提供给用户的服务 标识符; 具有至少两个执行级别,使得可以选择所述至少两个执行级别中的一个,以便确定是否与所述设备之一协作执行服务,并且根据来自所述至少两个执行级别的输入来设置所述至少两个执行级别中的一个 用户; 如果设备连接到使用生物体的设备之一作为传输信道,则接收另一设备的设备标识符; 为另一设备识别服务,并通过设备与另一设备之间的交互来识别要提供给用户的服务; 确定是否根据所设置的执行级别执行所识别的服务; 并且自动识别提供与其他设备协作确定执行的服务所需的信息并执行所确定的服务。 当使用方法,装置和系统时,用户可以通过简单地触摸两个装置来接收期望的服务。