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1. 发明授权

EP0750405B1 Cable loss equalization system used in wireless communication equipment 失效
标题翻译： Kabeldämpfungsentzerrereinrichtung用于在无线电通信系统中使用
公开(公告)号：EP0750405B1
公开(公告)日：2003-01-15
申请号：EP96109997.5
申请日：1996-06-20
申请人： NEC CORPORATION
发明人： Arai, Masami , Iwasaki, Hiroki
IPC分类号： H04B3/06
CPC分类号： H04B3/04

2. 发明公开

EP0750405A2 Cable loss equalization system used in wireless communication equipment 失效
标题翻译： Kabeldämpfungsentzerrereinrichtungzur Anwendung在einer Funkkmunmunations
公开(公告)号：EP0750405A2
公开(公告)日：1996-12-27
申请号：EP96109997.5
申请日：1996-06-20
申请人： NEC CORPORATION
发明人： Arai, Masami , Iwasaki, Hiroki
IPC分类号： H04B3/06
CPC分类号： H04B3/04
摘要： In a wireless communication apparatus arranged by an indoor unit, an outdoor unit, and a cable used to connect the indoor unit with the outdoor unit, a gain of an amplifier is automatically set. This amplifier amplifies a lowered level of a signal caused by a cable loss. To perform such an automatic gain setting operation, a cable loss equalization system is used in this wireless communication apparatus. The cable loss equalization system compensates for a reduction in a level of a main signal caused by the cable. The indoor unit comprises: an amplifier for amplifying at least one of a main transmit signal and a main receive signal; a first power source for supplying a first power source voltage to the indoor unit and a second power source of the outdoor unit; transmitting means for transmitting the first power source voltage via the cable to the outdoor unit; receiving means for receiving a second power source voltage supplied to the second power source of the outdoor unit from this outdoor unit; and a first control unit for measuring a voltage difference between the first power source voltage and the second power source voltage to thereby perform a gain setting operation of the amplifier.
摘要翻译：在由室内机，室外机和用于将室内机与室外机连接的电缆配置的无线通信装置中，放大器的增益被自动设定。该放大器放大由电缆损耗引起的信号电平降低。为了执行这种自动增益设置操作，在该无线通信设备中使用电缆丢失均衡系统。电缆损耗均衡系统补偿由电缆引起的主信号电平的降低。室内单元包括：放大器，用于放大主发射信号和主接收信号中的至少一个; 用于向室内单元提供第一电源电压的第一电源和室外单元的第二电源; 发送装置，用于经由所述电缆将所述第一电源电压发送到所述室外机; 接收装置，用于从该室外单元接收提供给室外单元的第二电源的第二电源电压; 以及第一控制单元，用于测量第一电源电压和第二电源电压之间的电压差，从而执行放大器的增益设置操作。

3. 发明公开

EP0750405A3 Cable loss equalization system used in wireless communication equipment 失效
标题翻译： Kabeldämpfungsentzerrereinrichtung用于在无线电通信系统中使用
公开(公告)号：EP0750405A3
公开(公告)日：1997-07-30
申请号：EP96109997.5
申请日：1996-06-20
申请人： NEC CORPORATION
发明人： Arai, Masami , Iwasaki, Hiroki
IPC分类号： H04B3/06
CPC分类号： H04B3/04
摘要： In a wireless communication apparatus arranged by an indoor unit, an outdoor unit, and a cable used to connect the indoor unit with the outdoor unit, a gain of an amplifier is automatically set. This amplifier amplifies a lowered level of a signal caused by a cable loss. To perform such an automatic gain setting operation, a cable loss equalization system is used in this wireless communication apparatus. The cable loss equalization system compensates for a reduction in a level of a main signal caused by the cable. The indoor unit comprises: an amplifier for amplifying at least one of a main transmit signal and a main receive signal; a first power source for supplying a first power source voltage to the indoor unit and a second power source of the outdoor unit; transmitting means for transmitting the first power source voltage via the cable to the outdoor unit; receiving means for receiving a second power source voltage supplied to the second power source of the outdoor unit from this outdoor unit; and a first control unit for measuring a voltage difference between the first power source voltage and the second power source voltage to thereby perform a gain setting operation of the amplifier.

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