公开(公告)号：US08639202B2

公开(公告)日：2014-01-28

申请号：US13409563

申请日：2012-03-01

申请人： Jong-Hwan Oh ,  Jun-Hyo Park ,  Hae-Min Park

发明人： Jong-Hwan Oh ,  Jun-Hyo Park ,  Hae-Min Park

IPC分类号： H04B1/18

CPC分类号： H04H20/22 ,  H04H20/57 ,  H04H60/52 ,  H04H2201/13

摘要： Provided is a device and method for providing an Alternative Frequency (AF) in a wireless terminal, by which an AF channel service suitable for a user environment can be provided. To this end, the device includes a radio broadcast receiver for receiving a radio broadcast signal, and a controller for attempting an AF channel switch after an elapse of a re-try wait time which is set according to a number of recent AF channel switch failures. The controller may detect the user environment as a walking state or a driving state. If a driving state is detected, the AF channel switch is attempted immediately when receive signal quality is below a threshold, regardless of the number of recent AF channel failures. If a walking state is detected, the AF channel switch is attempted after the elapse of the wait time.

摘要翻译： 提供了一种用于在无线终端中提供替代频率（AF）的装置和方法，由此可以提供适合于用户环境的AF信道服务。 为此，该装置包括用于接收无线电广播信号的无线电广播接收机，以及用于在根据最近的AF信道切换故障的数量设置的重试等待时间过去之后尝试AF信道切换的控制器 。 控制器可以将用户环境检测为行走状态或驾驶状态。 如果检测到驾驶状态，则无论最近的AF通道故障的数量如何，当接收信号质量低于阈值时，立即尝试AF通道切换。 如果检测到行走状态，则在经过等待时间之后尝试AF通道切换。