Patent ID: 8570146

Claim:
An in-vehicle wireless system that is placed in a vehicle so as to control a plurality of devices including a garage door opening-closing mechanism or household equipment that are remotely controlled by a high-frequency wireless signal, and is capable of operating at least in a copy mode and in a transmission mode, the plurality of devices respectively having predetermined carrier frequencies that are different from each other and unique to the respective devices, the in-vehicle wireless system comprising: at least one receiver that receives a wireless signal transmitted from a remote control transmitter for performing control on the garage door opening-closing mechanism or the household equipment through a reception antenna without a tuning circuit, and demodulates a control code signal for detecting only a control code from the received signal; a transmitter that transmits wireless signals modulated with a single control code at different carrier frequencies through a single transmission antenna; and a controller that controls the at least one receiver and the transmitter, wherein the controller, in the copy mode, detects the control code from the control code signal and stores only the control code, and the controller, in the transmission mode, controls the transmitter to perform transmission of a wireless signal modulated with the stored control code, the transmission of the modulated wireless signal being performed sequentially through the single transmission antenna at all the predetermined carrier frequencies unique to the respective devices, including the garage door opening-closing mechanism or household equipment in accordance with predetermined procedures.