专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0447194A2 Radio receiver antenna arrangements 失效
标题翻译： AntennenanordnungenfürFunkempfänger。
公开(公告)号：EP0447194A2
公开(公告)日：1991-09-18
申请号：EP91302086.3
申请日：1991-03-13
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Davies, John , Duffy, Kenneth , Zafar, Imtiaz
IPC分类号： H01Q23/00
CPC分类号： H01Q23/00
摘要： A radio receiver antenna arrangement incorporating an RF pre-amplifier (5) wherein means (11 to 21) is provided for by-passing the pre-amplifier when strong signals are picked up by the antenna (1) to avoid overloading the pre-amplifier.
摘要翻译：一种包括RF前置放大器（5）的无线电接收机天线装置，其中提供装置（11至21）用于在由天线（1）拾取强信号时旁路前置放大器，以避免前置放大器。

2. 发明公开

EP0370746A1 Radio receiver antenna systems 失效
标题翻译：天线系统无线电
公开(公告)号：EP0370746A1
公开(公告)日：1990-05-30
申请号：EP89312033.7
申请日：1989-11-20
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Davies, John
IPC分类号： H01Q1/32 , H01Q1/44
CPC分类号： H01Q1/1278
摘要： A radio receiver antenna system comprising an antenna arrangement (1) which provides two signals (v a ,v b ) and means (T1, T2, 35 to 47) for combining the signals so that the output (V o ) is significant for all values of the relative phase of the two signals.
摘要翻译：一种无线电接收机天线系统，包括提供两个信号（va，vb）的天线装置（1）和用于组合信号的装置（T1，T2,35至47），使得输出（Vo）对于相对相位的两个信号。

3. 发明公开

EP0410705A3 Vehicle radio receiver systems 失效
标题翻译：车载无线接收机系统
公开(公告)号：EP0410705A3
公开(公告)日：1992-11-25
申请号：EP90308115.6
申请日：1990-07-25
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Davies, John
IPC分类号： H04B1/18 , H03H7/38 , H01Q1/12
CPC分类号： H01Q1/1278 , H03H7/38
摘要： A vehicle radio receiver system comprising: an antenna (1) comprising a rear window electric heater of the vehicle; a receiver (17); a cable (15) connecting the antenna (1) to the receiver (17); and a matching circuit (25) between the antenna (1) and the cable (15). Two elements of the matching circuit are constituted by the capacitance (C 4 ) of the antenna (1) to ground and the capacitance (C 6 ) of the cable (15) to ground respectively. The matching circuit (25) is arranged to have input and output resistances substantially matching the output resistance (Ri) of the antenna (1) and the input resistance (R 2 ) of the receiver (17) respectively and a transfer function T(f) where f is frequency, such that V 1 (f).T(f) = k = V 2 (f), for the frequency range 100 to 2000 KHz, where V 1 is the voltage from the antenna (1), k is a constant and V 2 the voltage developed at the input to the receiver (17).

4. 发明公开

EP0447194A3 Radio receiver antenna arrangements 失效
标题翻译：无线电接收天线安排
公开(公告)号：EP0447194A3
公开(公告)日：1992-01-15
申请号：EP91302086.3
申请日：1991-03-13
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Davies, John , Duffy, Kenneth , Zafar, Imtiaz
IPC分类号： H01Q23/00
CPC分类号： H01Q23/00
摘要： A radio receiver antenna arrangement incorporating an RF pre-amplifier (5) wherein means (11 to 21) is provided for by-passing the pre-amplifier when strong signals are picked up by the antenna (1) to avoid overloading the pre-amplifier.

5. 发明公开

EP0410705A2 Vehicle radio receiver systems 失效
标题翻译： RundfunkempfangssystemefürFahrzeuge。
公开(公告)号：EP0410705A2
公开(公告)日：1991-01-30
申请号：EP90308115.6
申请日：1990-07-25
申请人： THE GENERAL ELECTRIC COMPANY, p.l.c.
发明人： Davies, John
IPC分类号： H04B1/18 , H03H7/38 , H01Q1/12
CPC分类号： H01Q1/1278 , H03H7/38
摘要： A vehicle radio receiver system comprising: an antenna (1) comprising a rear window electric heater of the vehicle; a receiver (17); a cable (15) connecting the antenna (1) to the receiver (17); and a matching circuit (25) between the antenna (1) and the cable (15). Two elements of the matching circuit are constituted by the capacitance (C 4 ) of the antenna (1) to ground and the capacitance (C 6 ) of the cable (15) to ground respectively. The matching circuit (25) is arranged to have input and output resistances substantially matching the output resistance (Ri) of the antenna (1) and the input resistance (R 2 ) of the receiver (17) respectively and a transfer function T(f) where f is frequency, such that V 1 (f).T(f) = k = V 2 (f), for the frequency range 100 to 2000 KHz, where V 1 is the voltage from the antenna (1), k is a constant and V 2 the voltage developed at the input to the receiver (17).
摘要翻译：一种车载无线电接收机系统，包括：天线（1），包括所述车辆的后窗电加热器; 接收器（17）; 将天线（1）连接到接收器（17）的电缆（15）; 和天线（1）和电缆（15）之间的匹配电路（25）。匹配电路的两个元件由天线（1）接地的电容（C4）和电缆（15）的接地电容（C6）分别构成。匹配电路（25）被布置成具有基本上匹配天线（1）的输出电阻（R1）和接收器（17）的输入电阻（R2）的输入和输出电阻和传递函数T（f）其中f是频率，使得对于频率范围为100至2000KHz的V1（f）.T（f）= k = V2（f），其中V1是来自天线（1）的电压，k是常数， V2是在接收器（17）的输入处产生的电压。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式