Security access system with wireless identification
First Claim
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1. A wireless identification device for use with an identification checking system, the device comprising:
- means for receiving a first wireless signal from a source;
means for wireless-transmitting a first responsive signal incorporating a random security code;
means for receiving a second wireless signal from the source;
means for checking whether the second wireless signal incorporates a derivative code of the random security code; and
means for wirelessly transmitting a second responsive signal confirming the incorporation of the derivative code into the second wireless signal.
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Abstract
The present invention relates to a door control system using radio communication. According to the invention, a main device controls the opening and closing of a door by using a portable wireless card. The main device comprises a long wave emitting portion, a very high frequency wave receiving portion, a very high frequency wave emitting portion, memory, processor and recording media in which a program that is executable by the processor is recorded. The portable card comprises a long wave receiving portion, a card processor and recording media in which a program that is executable by the card processor is recorded.
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Citations
40 Claims
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1. A wireless identification device for use with an identification checking system, the device comprising:
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means for receiving a first wireless signal from a source;
means for wireless-transmitting a first responsive signal incorporating a random security code;
means for receiving a second wireless signal from the source;
means for checking whether the second wireless signal incorporates a derivative code of the random security code; and
means for wirelessly transmitting a second responsive signal confirming the incorporation of the derivative code into the second wireless signal. - View Dependent Claims (2, 3, 4)
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5. A wireless security access system, comprising
a portable unit; -
a control unit;
wherein the portable unit comprises;
means for receiving a first wireless signal, means for wireless-transmitting a first responsive signal incorporating a random security code, means for receiving a second wireless signal, means for checking whether the second wireless signal incorporates derivative code of the random security code, and means for wirelessly transmitting a second responsive signal confirming the incorporation of the derivative code into the second wireless signal; and
wherein the control unit comprises;
means for transmitting the first and second wireless signals, means for receiving the first and second responsive signals transmitted from the device, means for processing the first responsive signals and for generating the second wireless signal incorporating the derivative code, and means for controlling operation of an access device upon the receipt of the second responsive signal. - View Dependent Claims (6, 7)
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8. A wireless security access system, comprising:
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a control unit configured to transmit an initiating wireless signal;
a portable unit configured to recognize the initiating wireless signal and programmed to initiate two-way wireless communications with the control unit upon the recognition of the initiating wireless signal, wherein the two-way wireless communication between the control and portable units are designed to identify each other, and wherein the control unit is programmed to issue a command upon the mutual identification by the control and portable units; and
a locking device is configured to operate in accordance with the command from the control unit. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40)
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19. A method of identifying a counterpart of wireless communication, the method comprising:
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detecting by a portable unit a first wireless signal with an intensity level equal to or higher than a predetermined level;
upon the detection of the first wireless signal with the intensity level, wirelessly transmitting from the portable unit a signal representing an identification code of the portable unit and a random security code;
receiving by the portable unit a second wireless signal incorporating a derivative code of the security code; and
wirelessly transmitting from the portable unit a confirmation signal confirming the incorporation of the derivative code into the second wireless signal
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23. A process of operating a security access system, comprising:
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transmitting a first wireless signal from a control unit;
receiving the first wireless signal by a portable unit;
generating and transmitting by the portable unit a second wireless signal in response to the first wireless signal, the second wireless signal comprising a signal identifying the portable unit;
receiving the second wireless signal and identifying the portable unit based on the identifying signal by the control unit; and
transmitting from the control unit a command signal for an operation of a locking device.
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39. An apparatus for identifying a counterpart of wireless communication, the apparatus comprising:
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a receiver for receiving incoming signals;
a processor for processing the received signals;
a transmitter for transmitting signals; and
wherein the processor is programmed to isolate an encrypted code from the incoming signals and to generate a derivative code of the encrypted code, and wherein the transmitter is configured to transmit a reply signal incorporating the derivative code.
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Specification