105 results about "Proximity card" patented technology

A fast data transfer collection system using message authentication and contactless RF proximity card technology in non-contact storage and retrieval applications. The system is generally comprised of Host computers (application computer systems), Target radio frequency (RF) terminals, and a plurality of portable Tags ("smart" or "proximity" cards). A Host provides specific application functionality to a Tag holder, with a high degree of protection from fraudulent use. A Target provides control of the RF antenna and resolves collisions between multiple Tags in the RF field. A Tag provides reliable, high speed, and well authenticated secure exchanges of data / information with the Host resulting from the use of a custom ASIC design incorporating unique analog and digital circuits, nonvolatile memory, and state logic. Each Tag engages in a transaction with the Target in which a sequence of message exchanges allow data to be read(written) from(to) the Tag. These exchanges establish the RF communication link, resolve communication collisions with other Tags, authenticate both parties in the transaction, rapidly and robustly relay information through the link, and ensure the integrity and incorruptibility of the transaction. The system architecture provides capabilities to ensure the integrity of the data transferred thus eliminating the major problem of corrupting data on the card and in the system. The architecture and protocol are designed to allow simple and efficient integration of the transaction product system into data / information processing installations.

The present invention relates to access control systems using proximity cards, and in particular, to a proximity card and an associated method for controlling activation of the proximity card. The proximity card includes an actuation sensor and an access electronics system connected to the actuation sensor, the access electronics system configured to activate the proximity card in response to an input from the actuation sensor to enable communication of the access information from the proximity card.

The invention provides a card sending device, and the device comprises a support for stacking cards, a card jacking mechanism which is disposed below the support and pushes out the cards in an upwardmanner, and a card pushing mechanism which is used for pushing cards outwards. The support comprises a left support and a right support, and the top of the left support is provided with a baffle platewhich extends inwards. The bottom of the baffle plate is provided with a pressures sensor which is used for sensing the pressure of the cards. The top of the left support is also provided with a first hole, and the top of the right support is provided with a second hole. The top wall of the first hole is aligned with the bottom surface of the baffle plate, and the card pushing mechanism can passthrough the first hole to push the cards in the support out of the second hole. The device is high in precision, and is simple in structure.