Wireless connectivity in a radar detector

1. A police activity detector, comprising:

a receiver for detecting electromagnetic signals generated in the context of police activity,

a processor coupled to said receiver and evaluating electromagnetic signals received by said receiver to determine whether a warning is to be issued, the processor operating under control of software and/or data, and

a first wireless device interface comprising a radio compliant with a wireless personal area network communication protocol,

the processor interacting wirelessly with an external device via said first wireless device interface and connecting to a cellular device providing an Internet connection, the cellular device exchanging data with a remote server via said Internet connection,

wherein the external device comprises a global positioning receiver, a display, and a second wireless device interface connectable to the first wireless device interface, the display generating alerts of radar when detected by the radar detector, and presenting a map representing the geographic location of the external device.

2. The detector of claim 1 wherein the processor receives signal information data from said remote server via said cellular device and Internet connection and uses the same in determining whether to issue a warning to a user of the detector.

3. The detector of claim 1 wherein the first wireless device interface is located in a housing that incorporates a cigarette lighter plug for obtaining 12 volt power from a cigarette lighter connector.

4. The detector of claim 1 further comprising at least one toggle button which may be activated by a user to indicate the presence of police activity at a current position.

5. A position-responsive police activity detector upgrade device, for use with a radar detector having a power and data connection, the radar detector receiving electrical power and communicating data over the connection including at least an indication of an alert generated upon detection of police radar, and the radar detector responding to data received over the connection including at least a muting signal for muting of an alert, the upgrade device comprising

a housing that incorporates a cigarette lighter plug for obtaining 12 volt power from a cigarette lighter socket,

a power and data connection for connection to a radar detector power and data connection,

a communications connection for communicating with a mobile telephone, to cause the remote telephone to store information regarding a radar encounter in a remote database via cellular communication,

the upgrade device including circuitry coupling power obtained from said cigarette lighter connector to a connected radar detector, receiving an indication of an alert from a connected radar detector, and providing a signal to a mobile telephone via said communications connection to a mobile telephone in response to an indicated alert.

6. The detector upgrade device of claim 5 wherein upon indication of an alert generated by a radar detector, said upgrade device causes said mobile telephone to store a current location in said remote database.

7. The detector upgrade device of claim 5 wherein the upgrade device receives an indication of police activity from a user of the device and provides a signal to the mobile telephone via said communications connection to cause said mobile telephone to store a current location in said remote database.

8. The detector upgrade device of claim 5 wherein the communications connection is a wireless connection complying with a personal area network communication protocol.

9. The detector upgrade device of claim 5 wherein the communication interface is a wired connection.

10. The detector upgrade device of claim 9 wherein the communication interface is a serial connection.

11. The detector upgrade device of claim 10 wherein the communication interface is a USB connection.