Source: {"pile_set_name": "USPTO Backgrounds"}

The present application relates generally to the field of vehicle communication systems and portable electronic devices. More specifically, the present disclosure relates generally to the field of a key fob configured for interaction with vehicle systems.
Vehicles such as automobiles are typically configured to receive signals from portable electronic devices configured to transmit one or more control signals. Such a portable electronic device might be, for example, a key fob. A key fob is an item that people often carry with their keys, for example, on a ring or a chain. Other such portable electronic devices are built into or form the bow of a key. Yet other such portable electronic devices are not built for coupling to a key and are standalone portable electronic devices (e.g., a mobile phone, a personal digital assistant) for transmitting control signals to the vehicle.
A conventional key fob of the type discussed above is typically only configured to transmit radio frequency signals to a vehicle receiver. Typically the vehicle does not include a transmitter or transceiver for communicating with or back to the key fob.