International Business Machines Corporation

Xavier Rey-Robert

Gerard Marmigere

Frederic J Bauchot

Joaquin Picon

Pierre Secondo

Vincent Tassy

Jean-Yves Clement

Bernard Y Pucci

The present invention is directed to tamper detection, memorization, and indication for packaging. A method in accordance with an embodiment of the present invention includes: detecting when the package is opened and closed; and generating an alarm if the package is opened more than once after it is initially closed to indicate that the package has been tampered with.

Tamper detection, memorization, and indication for packaging

RFID method and system are provided. A reader transmits a reader signal to beacon tags and a listening tag. The beacon tags transmit beacon signals including a beacon identification and a beacon distance to the reader. The listening tag receives the beacon signals. Neighbor distances are calculated for the beacon tags based on when the beacon signals are received, when the listening tag receives the reader signal, and a constant processing time. The neighbor distances are the individual distances from the listening tag to the beacon tags. A list is stored including the beacon identification for the beacon tags, the beacon distance, and the neighbor distances. The listening tag transmits the list and a listening tag identification to the reader. A geographical position of the listening tag is calculated based on the beacon distance, beacon coordinates, and a listening tag distance which is from the reader to the listening tag.

Methods and systems for RFID tag geographical location using beacon tags and listening tags

A method and system for monitoring a computer program window define an area of a computer program window and compute a hash value for the defined area. The computed hash value is stored and the hash value is recomputed for the defined area after a predetermined time period. The recomputed hash value is compared with the stored. If the stored hash value and the recomputed hash value are different, the method and system overwrite the stored hash value with the recomputed hash value, and generate a notification. Recomputing, comparing, overwriting and generating are performed periodically to monitor the changes in the defined area.

Application window area change surveillance

The present invention is directed to a method and apparatus for visually locating short distance emission RFID tags to locate items in a container. A method in accordance with an embodiment of the present invention includes: initiating a reading sequence of a plurality of first RFID tags, wherein each first RFID tag is associated with a respective item located in the container, and wherein each first RFID tag emits an identification (ID); capturing the ID emitted by each first RFID tag using a plurality of second RFID tags located in the container, wherein each second RFID tag is coupled to a respective illumination source; addressing one of the first RFID tags; and activating the illumination source coupled to each second RFID tag that captured the ID of the addressed first RFID tag.

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La Gaude, France

Xavier Rey-Robert