首页>
外国专利>
DETECTING A WLAN SIGNAL USING A BLUETOOTH RECEIVER DURING BLUETOOTH SCAN ACTIVITY
DETECTING A WLAN SIGNAL USING A BLUETOOTH RECEIVER DURING BLUETOOTH SCAN ACTIVITY
展开▼
机译:在蓝牙扫描活动期间使用蓝牙接收器检测WLAN信号
展开▼
页面导航
摘要
著录项
相似文献
摘要
pA BT receiver RF front end receives RF energy in a sequence of BT scan windows. Throughout a scan window, the front end is tuned to one hop frequency. Before and after the window the front end is in a disabled state. A WLAN energy detector processes an output of the front end during the window and determines whether more than a predetermined amount of RF energy was received onto the front end during the window. A BT baseband processor attempts to demodulate the output of the front end. If the WLAN energy detector determines that the predetermined amount of RF energy was received and if a BT signal could not be demodulated, then a WLAN wake-up signal is asserted, thereby causing a WLAN transceiver to be powered up to receive WLAN signals. BT scan intervals are varied in duration to facilitate a BT scan window overlapping a WLAN beacon./p[US2011274021A1]
展开▼