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1.发明授权Method and apparatus for using telephone house wiring for voice/data network 失效用于语音/数据网络使用电话线路的方法和装置
公开(公告)号：US5960066A
公开(公告)日：1999-09-28
申请号：US744391
申请日：1996-11-07
CPC分类号： H04L12/2838 , H04L12/2803 , H04M11/062 , H04L12/2834 , H04L2012/2845
摘要： A system for deriving multiple channels from four-wire residential telephone wiring. The invention provides two voice channels and two, or more, data channels on common residential telephone wiring. The voice channels occupy a normal telephone bandwidth, in the range of approximately zero Hz to 3500 Hz. Within this channel placement, ordinary telephonic devices can use the channels, without a requirement of frequency-shifting. Above these voice-channel frequencies, data channels are provided, for internal communication within the residence.
摘要翻译： 一种用于从四线住宅电话线路导出多个通道的系统。 本发明在公共住宅电话线路上提供两个语音信道和两个或更多个数据信道。 语音信道占用正常的电话带宽，范围约为零Hz至3500 Hz。 在这个通道中，普通电话设备可以使用频道，而不需要频移。 在这些语音信道频率之上，提供数据信道，用于住宅内的内部通信。
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公开(公告)号：US06633589B1
公开(公告)日：2003-10-14
申请号：US09547746
申请日：2000-04-12
IPC分类号： H04J1500
CPC分类号： H04L12/2838 , H04L12/2803 , H04L12/2834 , H04L2012/2845 , H04M11/062
摘要： A controller for residential telephone wiring. Apparatus associated with the controller provides multiple communication channels on ordinary residential telephone wiring. The controller (1) routes incoming calls to a selected telephonic device within the residence, (2) routes outgoing calls to a free external line servicing the residence, and (3) routes calls within the residence from one telephonic device to another.
摘要翻译： 住宅电话线路控制器。 与控制器相关的设备在普通住宅电话线路上提供多个通信信道。 控制器（1）将来电转接到住宅内的选定的电话设备，（2）将外出呼叫路由到为住宅提供维修的免费外线;（3）将住宅内的电话从一个电话设备路由到另一个。 PTEXT>
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公开(公告)号：US6038300A
公开(公告)日：2000-03-14
申请号：US744393
申请日：1996-11-07
CPC分类号： H04M3/42314 , H04M1/723
摘要： A controller for residential telephone wiring. Apparatus associated with the controller provides multiple communication channels on ordinary residential telephone wiring. The controller (1) routes incoming calls to a selected telephonic device within the residence, (2) routes outgoing calls to a free external line servicing the residence, and (3) routes calls within the residence from one telephonic device to another.
摘要翻译： 住宅电话线路控制器。 与控制器相关的设备在普通住宅电话线路上提供多个通信信道。 控制器（1）将来电转接到住宅内的选定的电话设备，（2）将外出呼叫路由到为住宅提供维修的免费外线;（3）将住宅内的电话从一个电话设备路由到另一个。
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4.发明授权Method and apparatus for using telephone house wiring for voice/data network 失效用于语音/数据网络使用电话线路的方法和装置公开(公告)号：US06744786B1
公开(公告)日：2004-06-01
申请号：US09374400
申请日：1999-08-13
IPC分类号： H04J102
CPC分类号： H04L12/2838 , H04L12/2803 , H04L12/2834 , H04L2012/2845 , H04M11/062
摘要： A system for deriving multiple channels from four-wire residential telephone wiring. The invention provides two voice channels and two, or more, data channels on common residential telephone wiring. The voice channels occupy a normal telephone bandwidth, in the range of approximately zero Hz to 3500 Hz. With this channel placement, ordinary telephonic devices can use the channels, without a requirement of frequency-shifting. Above these voice-channel frequencies, data channels are provided, for internal communication within the residence.
摘要翻译： 一种用于从四线住宅电话线路导出多个通道的系统。 本发明在公共住宅电话线路上提供两个语音信道和两个或更多个数据信道。 语音信道占用正常的电话带宽，范围约为零Hz至3500 Hz。 通过这种频道放置，普通电话设备可以使用频道，而不需要频移。 在这些语音信道频率之上，提供数据信道，用于住宅内的内部通信。
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公开(公告)号：US5818925A
公开(公告)日：1998-10-06
申请号：US775485
申请日：1996-12-31
CPC分类号： G09G3/36 , H04M1/0297 , G09G2320/028
摘要： The characters of liquid crystal display devices (LCDs) normally exhibit asymmetrical visibility or identifiability dependent upon the direction from which the display is viewed. The asymmetrical identifiability is controllable by the bias applied to the LCD. The contrast of a liquid crystal display device used in a telephone apparatus is automatically controlled by a position sensing switch in accordance with the spatial orientation of the telephone apparatus in order to select the bias that will effectuate the greatest identifiability for the characters of display.
摘要翻译： 液晶显示装置（LCD）的特征通常表现为不对称的可视性或可识别性，这取决于显示器的观察方向。 不对称可识别性可以通过施加到LCD的偏置来控制。 电话装置中使用的液晶显示装置的对比度由根据电话装置的空间取向的位置检测开关自动控制，以便选择将实现显示字符的最大可识别性的偏差。
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