Patent ID: 7574287

Claim:
A system for transmitting sensor signals from a detection device to a receiver in a motor vehicle comprising: a sensor carried by said motor vehicle for sensing information regarding said motor vehicle and generating said sensor signals representing said information; an information display device located in a driver cabin of said motor vehicle for receiving said sensor signals and outputting said information represented by said sensor signals; and a transmission conduit for transmitting said sensor signals from said sensor to said information display device, said transmission conduit including an existing vehicle signal transmission line designated for transmitting vehicle reverse light actuating signals to the reverse light system of the vehicle; a signal modulator interconnecting said sensor and said pre-existing transmission line for creating modulated sensor signals by modulating said sensor signals for transmission over said pre-existing transmission line; a signal demodulator interconnecting said pre-existing transmission line and said information display device for demodulating said modulated sensor signals for display on said display device; and a signal modulation control device interconnecting said modulator and signal demodulator; wherein said signal modulation control device only actuates said signal modulator to modulate said sensor signals and said signal demodulator to demodulate said modulated sensor signals when said vehicle reverse light actuating signal is present in said pre-existing transmission line so that said sensor signals are transmitted via said pre-existing transmission line simultaneously with said vehicle reverse light actuating signal.