公开(公告)号：US20050130683A1

公开(公告)日：2005-06-16

申请号：US10733661

申请日：2003-12-11

申请人： Wayne Phang ,  Branko Avanic ,  Hiep Dang ,  Joseph Medvid ,  Dang Vu ,  Kevin Walkup

发明人： Wayne Phang ,  Branko Avanic ,  Hiep Dang ,  Joseph Medvid ,  Dang Vu ,  Kevin Walkup

IPC分类号： H04W4/16 ,  H04W88/06 ,  H04Q7/20

CPC分类号： H04W4/16 ,  H04W88/06

摘要： A communication device (105,200) includes a cordless telephone (205) and a two way radio (210). The communication device (105,200) is adapted to place an active cordless telephone call in a low frequency mode in response to receiving an incoming two way radio communication. The communication device (105,200) is adapted to then establish communication within the two way radio communication. The communication device (105,200) periodically re-establishes the cordless telephone call to maintain communication with a cordless base station (120) until the two way radio communication is completed.

摘要翻译： 通信设备（105,200）包括无绳电话（205）和双向无线电（210）。 响应于接收到进入的双向无线电通信，通信设备（105,200）适于将主动无绳电话呼叫置于低频模式。 通信设备（105,200）适于在双向无线电通信中建立通信。 通信设备（105,200）周期性地重新建立无绳电话呼叫，以维持与无绳基站（120）的通信，直到双向无线电通信完成。

公开(公告)号：US06480709B2

公开(公告)日：2002-11-12

申请号：US09764037

申请日：2001-01-19

申请人： Wayne M. Phang ,  John K. McKinney ,  Dang Vu

发明人： Wayne M. Phang ,  John K. McKinney ,  Dang Vu

IPC分类号： H04B106

CPC分类号： H03J7/285

摘要： A receiver (600) uses a scanning technique (100) to minimize scan time. An initial bandwidth setting is selected that covers multiple channel frequencies (106). A signal detection step (108) is performed looking for channel activity. As channel activity is detected, the bandwidth of a baseband filter (628) is narrowed (140, 146). The radio remains programmed to the same channel while the bandwidth is varied. Once the last signal detection with the narrowest possible bandwidth setting has been determined (144, 150, 152) the radio is programmed to that channel. Thus, more than one channel frequency is capable of being scanned without reprogramming the radio to a new channel for each scan.

摘要翻译： 接收器（600）使用扫描技术（100）来最小化扫描时间。 选择覆盖多个信道频率（106）的初始带宽设置。 执行信号检测步骤（108）寻找信道活动。 当检测到信道活动时，基带滤波器（628）的带宽变窄（140,146）。 当带宽变化时，无线电仍被编程到相同的信道。 一旦确定了具有最窄可能带宽设置的最后一个信号检测（144,150,152），无线电被编程到该信道。 因此，可以扫描多于一个信道频率，而无需将无线电重新编程到每个扫描的新信道。