| 摘要 |
PURPOSE: A field superposition apparatus, a system thereof, and a method thereof are provided to guarantee communications respectively multiplied by superposition factors by using overlapped vector components of the overlapped signal including the signals communicated based on the error-based range of the sum of vector components separated from each antenna. CONSTITUTION: A system comprises a main antenna (110) which transfers signals from a base station (130) to a remote transponder (140) and an internal antenna (120). The internal antenna is shielded from the direct access by the transponder such as a car shell or the other component, or from the direct access by sense coils of the exterior of the car. The base station operates the main and internal antennas, and the transponder detects the signal from the antenna including the vector components about each signal. The transponder re-communicates the encrypted information characterizing detected signals to in the base station. The base station generates multiple field superposition factors to use for repetitive operation of each antenna using the information. The base station encrypts the superposition factors and transmits the encrypted factors to the transponder. [Reference numerals] (110) Main antenna; (120) Internal antenna; (122) Second internal antenna; (130) Base station controller; (140) Transponder; (AA) Repeat cycles; (BB) Driving current with random superposition factors |
