Abstract: An item management apparatus includes an interface that receives a first identification of a first radio device carried by a user and a second identification of an alarm device correlated with an item deposited by the user. A memory stores the first identification and the second identification received by the interface in association with each other. A receiver receives a first signal from the first radio device. A processor determines a radio signal strength of the first radio device based on the first signal. A transmitter transmits a second signal for causing the alarm device to provide an alarm notice if the radio signal strength of the first radio device is determined to be greater than a predetermined value.

Abstract: An item management apparatus includes an interface that receives a first identification of a first radio device carried by a user and a second identification of an alarm device correlated with an item deposited by the user. A memory stores the first identification and the second identification received by the interface in association with each other. A receiver receives a first signal from the first radio device. A processor determines a radio signal strength of the first radio device based on the first signal. A transmitter transmits a second signal for causing the alarm device to provide an alarm notice if the radio signal strength of the first radio device is determined to be greater than a predetermined value.

Abstract: An item management apparatus includes a reader that reads a first identification of a first radio device carried by a user and a second identification of an alarm device correlated with an item deposited by the user. A memory stores the first identification and the second identification read by the reader in association with each other. A receiver receives a first signal from the first radio device. A processor determines a distance to the first radio device based on the first signal. A transmitter transmits a second signal for causing the alarm device to provide an alarm notice if the distance to the first radio device is determined to be equal to or less than a predetermined distance.

Abstract: An item management apparatus includes a reader that reads a first identification of a first radio device carried by a user and a second identification of an alarm device correlated with an item deposited by the user. A memory stores the first identification and the second identification read by the reader in association with each other. A receiver receives a first signal from the first radio device. A processor determines a distance to the first radio device based on the first signal. A transmitter transmits a second signal for causing the alarm device to provide an alarm notice if the distance to the first radio device is determined to be equal to or less than a predetermined distance.

Abstract: A wireless tag reader/writer apparatus includes a receiving/transmitting antenna configured to transmit an interrogation signal to wireless tags, each having a storage unit with at least a reserved area and an EPC area for storing a group ID unique to the wireless tag, and configured to receive response signals from the wireless tags; a tag-data storing unit configured to store interrogation data and response data, the interrogation data being contained in the interrogation signal to be transmitted to the wireless tags, and the response data being contained in the response signals transmitted from the wireless tags; and a main control unit configured to detect the group ID stored in the reserve area of each wireless tag, from the response data stored in the tag-data storing unit, and configured to determine that at least one of the wireless tags has dropped out, from the number of group IDs stored in the reserved area of each wireless tag.

Abstract: A wireless tag reader/writer apparatus according to this invention includes a receiving/transmitting antenna configured to transmit an interrogation signal to wireless tags, each having a storage unit with at least a reserved area and an EPC area for storing a group ID unique to the wireless tag, and configured to receive response signals from the wireless tags; a tag-data storing unit configured to store interrogation data and response data, the interrogation data being contained in the interrogation signal to be transmitted to the wireless tags, and the response data being contained in the response signals transmitted from the wireless tags; and a main control unit configured to detect the group ID stored in the reserve area of each wireless tag, from the response data stored in the tag-data storing unit, and configured to determine that at least one of the wireless tags has dropped out, from the number of group IDs stored in the reserved area of each wireless tag.

Abstract: A color image reading apparatus connected to an image data processing apparatus for the supply of a read-in image to the latter, image data processing apparatus comprises a photoelectric converting element for receiving a color manuscript image and for converting this image into electrical image data, a memory for memorizing color correction coefficients, which are used to enable the image data processing apparatus to perform proper color correction, and which, according to the signal from the image data processing apparatus, supplies the electrical image data and the color correction coefficients to the image data processing apparatus.