Patent ID: 7440779

Claim:
A radar detector having the function of a hands-free device, comprising: a horn antenna; a signal-processing unit for detecting a signal received by the horn antenna; a laser module for receiving a laser signal; a central processing unit for controlling the signal-processing unit by generating a pulse to measure and calculate the period and width of the signal detected by the signal-processing unit, to analyze and output the bandwidth and information of the signal, and to find the type and information of the signal over time; a pulse delay unit for delaying or sustaining the pulse received from the central processing unit; a sweep voltage generator unit for driving the signal-processing unit by generating a voltage from the pulse delay unit; a warning unit for audibly or visually warning the detected signal; an audio amplifier controller connected to the central processing unit and the warning unit to amplify an audio signal from the warning unit and an audio signal from a mobile phone; and a mobile phone connecting unit installed to connect the audio amplifier controller with the mobile phone and including a microphone, a switch for reception of a signal from the mobile phone, and a connection portion for connection to the mobile phone.