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    • 4. 发明授权
    • A method of diminishing the minimum range of operation of a communication link
    • 一种减少通信链路的最小操作范围的方法
    • EP2552017B1
    • 2018-03-07
    • EP11175282.0
    • 2011-07-26
    • Oticon A/S
    • Bendsen, Henrik
    • H03F1/56H03G3/30H03G3/00H03F3/189
    • H03F1/565H03F1/56H03F3/189H03F2200/222H03F2200/249H03F2200/252H03F2200/294H03F2200/451H03G3/001H03G3/3052
    • The application relates to a portable electronic device comprising a wireless receiver unit for receiving a wireless signal from a transmitting device, the wireless receiver unit comprising an antenna for receiving an electromagnetic signal and providing a received electric input signal, and a receiver for providing a recovered electric signal from the received electric input signal, and an impedance matching circuit for matching the electric impedance of the antenna to the receiver, the receiver comprising a gain stage comprising an Automatic Gain Control unit for automatically determining an AGC-gain value for application to an AGC-input signal to provide an appropriate signal level of the recovered electric signal when the level of said AGC input signal is in a range between a minimum signal level and a maximum signal level corresponding to maximum and minimum AGC-gain values, respectively. The application further relates to a method of operating a wireless receiver unit, to the use of a portable electronic device and to a communication system. The object of the present application is to provide a scheme for improving flexibility in the acceptable range of operation of a wireless link. The problem is solved in that the portable electronic device further comprises a control unit receiving said AGC-gain value and providing a control signal depending on said AGC-gain value to said impedance matching circuit, and wherein the control unit is adapted to change the impedance matching of the antenna to the receiver based on the control signal. This has the advantage of enhancing the dynamic range of the wireless receiver, e.g. allowing a smaller minimum distance between transmitter and receiver. The invention may e.g. be used for the portable electronic devices capable of establishing a wireless communication link to other devices, e.g. listening devices, such as hearing aids.
    • 7. 发明公开
    • A method of diminishing the minimum range of operation of a communication link
    • Verfahren zur Verringerung des Mindestbetriebsbereichs einer Kommunikationsverbindung
    • EP2552017A1
    • 2013-01-30
    • EP11175282.0
    • 2011-07-26
    • Oticon A/S
    • Bendsen, Henrik
    • H03F1/56H03G3/30H03G3/00H03F3/189
    • H03F1/565H03F1/56H03F3/189H03F2200/222H03F2200/249H03F2200/252H03F2200/294H03F2200/451H03G3/001H03G3/3052
    • The application relates to a portable electronic device comprising a wireless receiver unit for receiving a wireless signal from a transmitting device, the wireless receiver unit comprising an antenna for receiving an electromagnetic signal and providing a received electric input signal, and a receiver for providing a recovered electric signal from the received electric input signal, and an impedance matching circuit for matching the electric impedance of the antenna to the receiver, the receiver comprising a gain stage comprising an Automatic Gain Control unit for automatically determining an AGC-gain value for application to an AGC-input signal to provide an appropriate signal level of the recovered electric signal when the level of said AGC input signal is in a range between a minimum signal level and a maximum signal level corresponding to maximum and minimum AGC-gain values, respectively. The application further relates to a method of operating a wireless receiver unit, to the use of a portable electronic device and to a communication system. The object of the present application is to provide a scheme for improving flexibility in the acceptable range of operation of a wireless link. The problem is solved in that the portable electronic device further comprises a control unit receiving said AGC-gain value and providing a control signal depending on said AGC-gain value to said impedance matching circuit, and wherein the control unit is adapted to change the impedance matching of the antenna to the receiver based on the control signal. This has the advantage of enhancing the dynamic range of the wireless receiver, e.g. allowing a smaller minimum distance between transmitter and receiver. The invention may e.g. be used for the portable electronic devices capable of establishing a wireless communication link to other devices, e.g. listening devices, such as hearing aids.
    • 本申请涉及一种便携式电子设备,其包括用于从发送设备接收无线信号的无线接收器单元,所述无线接收器单元包括用于接收电磁信号并提供接收到的电输入信号的天线,以及用于提供恢复的 来自接收到的电输入信号的电信号和用于将天线的电阻抗匹配到接收器的阻抗匹配电路,所述接收机包括增益级,所述增益级包括自动增益控制单元,用于自动确定AGC增益值以应用于 当所述AGC输入信号的电平分别在最小信号电平和对应于最大和最小AGC增益值的最大信号电平之间的范围内时,AGC输入信号提供恢复的电信号的适当信号电平。 该应用还涉及一种操作无线接收器单元的方法,使用便携式电子设备和通信系统。 本申请的目的是提供一种用于提高无线链路的可接受操作范围内的灵活性的方案。 解决的问题在于,便携式电子设备还包括控制单元,其接收所述AGC增益值,并且根据所述AGC增益值向所述阻抗匹配电路提供控制信号,并且其中控制单元适于改变阻抗 基于控制信号将天线与接收机进行匹配。 这具有增强无线接收机的动态范围的优点,例如, 允许发射机和接收机之间的最小距离更小。 本发明可以例如。 用于能够建立到其他设备的无线通信链路的便携式电子设备,例如, 听力装置,如助听器。