Abstract: The present invention is directed to an underground as well as above ground system and method of determining the intrusion into a security zone. One or more transceivers would transmit a unique electromagnetic signal which would power a response from one or more RFID transponders. Each of the transponders would transmit a unique code to the transceiver indicating that there has been no intrusion in the vicinity of that transponder. Failure of a transponder to receive a signal produced by a transponder, would indicate the existence of an intrusion. The transponders as well as the transceivers can be provided in a PVC pipe buried in the ground, or provided in or on a structure located on or above the ground.

Abstract: The present invention is directed to an underground as well as above ground system and method of determining the intrusion into a security zone. One or more transceivers would transmit a unique electromagnetic signal which would power a response from one or more RFID transponders. Each of the transponders would transmit a unique code to the transceiver indicating that there has been no intrusion in the vicinity of that transponder. Failure of a transponder to receive a signal produced by a transponder, would indicate the existence of an intrusion. The transponders as well as the transceivers can be provided in a PVC pipe buried in the ground, or provided in or on a structure located on or above the ground.

Abstract: An intrusion detection system and method utilizing a power transmission cable connected to a source of radio frequency signals. A data transmission cable is associated with the power transmission cable and is provided with a plurality of radio frequency identification chips. The power transmission cable would induce an electromagnetic field within the data transmission cable allowing each of the RFID chips to transmit a signal during normal operation. However, if an intrusion occurs or the power transmission cable or data transmission cable is severed, the system according to the present invention, would be able to determine the exact point of intrusion based upon the signals received or not received from the RFID chips.

Abstract: An identification card, typically of the proximity type, having on its outer structure a numeric keyboard. When approaching a high security entrance, the user enters into the card a PIN code known only to himself or a few others. The PIN code entry is compared to a reference code within the card and if correct enables the logic system of the card. When the card is next placed in proximity to a reader antenna, a normal read occurs, that is the data of the card is transferred to the reader. The card acts as a data source. Identification data is transferred during the read action, and also financial transactions, and an emergency code if the user is under duress and requests emergency help. The data sent to the reader is also optionally sent to a higher order data processing system such as a central computer. In a second embodiment, the proximity circuits and antenna are made integral to a hand held palm top or lap top computer or cell phone.

Abstract: An identification card, typically of the proximity type, having on its outer structure a numeric keyboard. When approaching a high security entrance, the user enters into the card a PIN code known only to himself or a few others. The PIN code entry is compared to a reference code within the card and if correct enables the logic system of the card. When the card is next placed in proximity to a reader antenna, a normal read occurs, that is the data of the card is transferred to the reader. The card acts as a data source. Identification data is transferred during the read action, and also financial transactions, and an emergency code if the user is under duress and requests emergency help. The data sent to the reader is also optionally sent to a higher order data processing system such as a central computer. In a second embodiment, the proximity circuits and antenna are made integral to a hand held palm top or lap top computer or cell phone.

Abstract: An identification card, typically of the proximity type, having on its outer structure a numeric keyboard. When approaching a high security entrance, the user enters into the card a PIN code known only to himself or a few others. The PIN code entry is compared to a reference code within the card and if correct enables the logic system of the card. When the card is next placed in proximity to a Reader antenna, a normal read occurs, that is the data of the card is transferred to the Reader. The card acts as a data source. Identification data is transferred during the read action, and also financial transactions, and an emergency code if the user is under duress and requests emergency help. The data sent to the Reader is also optionally sent to a higher order data processing system such as a central computer. In a second embodiment, the proximity circuits and antenna are made integral to a hand held palm top or lap top computer or cell phone.

Abstract: At each booth there is, at an elevated position, an infra-red transmitter. The infra-red serves as a carrier for multiple audio messages. The audio messages are in various languages, and each language has a supplementary message of greater detail. The attendee carries an infra-red receiver, from which he selects whatever language he desires. He also has a button which, when he chooses, brings in a supplementary message in the same language. The attendee points his receiver towards the booth of interest. Thus he chooses the booth and generally neighboring booths do not interfere, as they would with radio frequency transmission. The receiver may be hand held, held next to the ear, badge level mounted, or head mounted.

Abstract: A gas dispensing device uses small liquified gas cartridges having, for example, nitrogen or carbon dioxide, in a hand-held canister unit with a thumb operated valve. In a simple form with an extension tube at its lower end, the device is useful for injecting a blanket of oxygen-devoid gas into a bottle containing a perishable liquid such as wine, so that the partially used bottle of wine can then be recorked and preserved. In this form the device can also be connected to a special closure secured to the mouth of a carbonated beverage, for pressurizing the space above the beverage in the partially used container. In another form, the gas dispenser forms a part of an assembly including a liquid flow tube extending to the bottom of a bottle, a bottle neck seal and a pouring spout, so that the release of gas into the bottle will force the liquid up through the flow tube and out the pouring spout to dispense the liquid.