Vehicle communication system with trainable transmitter

摘要

A vehicle communication system includes a trainable transmitter that is connected with the antenna associated with the AM/FM radio receiver in the vehicle. The trainable transmitter preferably is capable of learning a variety of communication signals and then later, selectively transmitting them to communicate with a variety of external, remotely located devices. A system designed according to this invention allows a single antenna to be used for emitting signals and receiving signals and, moreover facilitates communication with a variety of remotely located devices such as a garage door opener and a home security system.