MULTI-TUNER APPARATUS FOR RECEIVING RF SIGNALS
    1.
    发明申请
    MULTI-TUNER APPARATUS FOR RECEIVING RF SIGNALS 有权
    用于接收射频信号的多功能设备

    公开(公告)号:US20090219449A1

    公开(公告)日:2009-09-03

    申请号:US12063857

    申请日:2006-08-15

    IPC分类号: H04N5/50

    CPC分类号: H04B1/18 H03J1/0083

    摘要: A multi-tuner apparatus comprises a splitter (S) for received RF signals. The splitter has a splitter output (U) for connection to a plurality of tuners. To reduce signal degradation and dissipation the output impedance of the splitter output is substantially lower than the input impedance of each of the tuners.

    摘要翻译: 多调谐器装置包括用于接收的RF信号的分路器(S)。 分路器具有用于连接到多个调谐器的分路器输出(U)。 为了降低信号衰减和耗散,分路器输出的输出阻抗基本上低于每个调谐器的输入阻抗。

    Multi-tuner apparatus for receiving RF signals
    2.
    发明授权
    Multi-tuner apparatus for receiving RF signals 有权
    用于接收RF信号的多调谐器装置

    公开(公告)号:US08818308B2

    公开(公告)日:2014-08-26

    申请号:US12063857

    申请日:2006-08-15

    IPC分类号: H04B1/18

    CPC分类号: H04B1/18 H03J1/0083

    摘要: A multi-tuner apparatus comprises a splitter (S) for received RF signals. The splitter has a splitter output (U) for connection to a plurality of tuners. To reduce signal degradation and dissipation the output impedance of the splitter output is substantially lower than the input impedance of each of the tuners.

    摘要翻译: 多调谐器装置包括用于接收的RF信号的分路器(S)。 分路器具有用于连接到多个调谐器的分路器输出(U)。 为了降低信号衰减和耗散,分路器输出的输出阻抗基本上低于每个调谐器的输入阻抗。

    Device and method for determining the level of an input signal intended to be applied to a receiving system
    4.
    发明申请
    Device and method for determining the level of an input signal intended to be applied to a receiving system 审中-公开
    用于确定旨在应用于接收系统的输入信号的电平的装置和方法

    公开(公告)号:US20060014508A1

    公开(公告)日:2006-01-19

    申请号:US10528739

    申请日:2003-09-15

    IPC分类号: H04B1/06 H04B7/00

    CPC分类号: H03G3/001 H03G3/3068

    摘要: The invention relates to a device for determining the level of an input signal (101) intended to be applied to a receiving system (TUN), said receiving system (TUN) comprising arranged in series a set of discrete gain amplifiers (102-103-105-107), a selective filter (104), a mixer (106), said receiving system (TUN) being intended to deliver an output signal (108), said device comprising: measuring means (116) for measuring the level of said output signal (108) in a given frequency channel, means (120) for determining the real gain (G1) of said set of amplifiers (102-103-105-107) in said given frequency channel, means (121) for determining the real gain (G2) of said selective filter (104) in said given frequency channel, calculation means (122) for deriving the level of the input signal (101) from the level of the output signal (108), the real gain (G1) of said set of amplifiers (102-103-105-107) and from the real gain (G2) of said selective filter (104).

    摘要翻译: 本发明涉及一种用于确定要应用于接收系统(TUN)的输入信号(101)的电平的装置,所述接收系统(TUN)包括串联布置一组离散增益放大器(102-103- 选择滤波器(104),混频器(106),所述接收系统(TUN)旨在传送输出信号(108),所述装置包括:测量装置(116),用于测量所述 输出信号(108),用于确定所述给定频率信道中的所述放大器组(102-103-105-107)的实际增益(G 1)的装置(120),用于确定所述给定频率信道 所述选择滤波器(104)在所述给定频道中的实际增益(G 2),用于从输出信号(108)的电平导出输入信号(101)的电平的计算装置(122),实际增益 (102-103-105-107)的放大器(G 1)和所述放大器的实际增益(G 2) 选择性过滤器(104)。