KEYLESS ENTRY SYSTEM FOR MOTOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To solve the problems that a conventional keyless entry system for a motor vehicle malfunctions by detecting an adjacently parting motor vehicle and that its battery virtually goes dead as a result. SOLUTION: A mode switching signal is outputted from a portable unit on the basis of reception level determination 20 on question electric waves, and a fixed unit on the side of a motor vehicle is switched from a standby mode to normal mode according to the mode switching signal.