Methods and Apparatus for Device Detection in Response to Signal Broadcast

摘要

Methods and apparatus for detecting a device, such as a cell phone, by transmitting signals in various formats and detecting a response from the device. In general, different devices respond to different signal formats. Upon detecting the device, an alert can be generated.

主权项

1. A method, comprising:
transmitting a first signal in a first format; transmitting a second signal in a second format; detecting, using an array, a wireless device within a given range generating a signal in response to the first signal; and generating a detection signal upon detecting the device.