Toshiba Tec Kabushiki Kaisha

Kouichi Sano

Yasuo Matsumoto

Nobuo Murofushi

Yasuhito Kiji

Jun Yaginuma

Sunao Tsuchida

Shigetoshi Kunieda

Shinji Saegusa

Takahiro Shimura

Naoki Watanabe

Masakazu Kato

Masaki Narahashi

Yasutsugu Sasaki

According to one embodiment, a wireless tag communication apparatus includes a plurality of communication units configured to communicate with a wireless tag. The communication units are disposed such that communicable ranges of the communication units overlap each other. A control unit controls each of the plurality of communication units to alternate between a communication state and a pause state. When the wireless tag is positioned within communication ranges of both first and second communication units of the plurality of communication units, the control unit controls the first communication unit to be in the communication state and the second communication unit to be in the pause state.

Wireless tag communication apparatus, wireless tag communication system, and communication method

A wireless tag reading device includes a chamber in which an article having a wireless tag attached thereto can be stored. A first antenna is provided for outputting a signal for reading information from the wireless tag attached to the article stored in the chamber. A second antenna is also provided for outputting the signal for reading information from the wireless tag. A first moving mechanism is configured to change a distance between the wireless tag and the first antenna during a reading process for reading information from the wireless tag in the chamber.

Tag reading device

A radio tag communication apparatus that communicates with radio tags including storing units capable of storing identification information and state information of articles includes a search-condition setting unit for reading the state information, which is a search target, a radio tag communication unit configured to perform communication with the radio tag under a set search condition using a first reading function for reading the radio tag without designating the radio tag and a second reading function for designating the radio tag, setting a transmission output, and repeatedly reading the radio tag, a comparison determination unit configured to perform comparison determination of information read by the first reading function and the search condition, and communication control unit configured to control the radio tag communication unit according to result of the comparison determination to switch the reading operation by the first reading function to the reading operation by the second reading function.

Method and a radio tag communication apparatus

A wireless tag communication device for communicating with a wireless tag through a directional antenna includes a wireless tag communication section configured to communicate with the wireless tag, a calculation section configured to estimate a direction range for communicating with the wireless tag based on transmission output power of the wireless tag communication device and an estimated reading distance to the wireless tag, and a display section configured to display the estimated direction range.

Wireless tag communication device and wireless tag communication program

Radio tag communication apparatus, radio tag communication system, and a non-transitory computer-readable recording medium

According to one embodiment, a wireless tag communication device which communicates with a wireless tag includes a communication unit that designates a target wireless tag to read tag information stored in the wireless tag; a read-state determination unit that determines a read state of the tag information read by the communication unit; an output adjustment unit that varies a radio wave output to be transmitted to the wireless tag in response to the result of the determination by the read-state determination unit; a signal strength detection unit that detects the signal strength of a reply signal received from the wireless tag via the communication unit; and a control unit that switches the operation mode of the communication unit between a long-distance mode to communicate with the wireless tag while the output adjustment unit varies the radio wave output and a near-field mode to communicate with the wireless tag while the signal strength detection unit detects the signal strength.

There is provided an RF tag reader including an omission-in-reading determining section which determines that an RF tag belonging to a predetermined group might be unread when tag information is not acquired from an RF tag, which belongs to the group and whose tag information is not acquired yet, within a predetermined time after tag information corresponding to any one of a plurality of RF tags grouped as the predetermined group is acquired.

RF tag reader and RF tag information acquisition method

According to one embodiment, a wireless tag communication device detects a communication state between an antenna and a specific wireless tag to be searched, stores a transmission power value obtained if the communication state is better than a predetermined value, reduces transmission power to the wireless tag and, if the communication state is worse than the predetermined value, increases, on the basis of the stored transmission power value, the transmission power to be higher than the transmission power value and performs communication with the wireless tag, and performs resetting on the basis of the stored transmission power value if the communication state further worsens.

Wireless tag communication device, information processing apparatus, and recording medium

According to one embodiment, an RFID tag issuing apparatus includes a communication instructing unit, a search unit, and a misalignment amount detecting unit. The communication instructing unit instructs a reader-writer unit to communicate with the RFID tag at a reference position that is reached when the label is carried by a predetermined amount in a predetermined direction after the specific position on the label is detected by a label position detecting unit. The search unit repeats a carrying of the label and a communication instruction to the reader-writer unit when communication cannot be established with the RFID tag, and thus searches for a communication-available range with the RFID tag. The misalignment amount detecting unit detects an amount of carrying of the label to reach the communication-available range from the reference position, as a misalignment amount of the RFID tag.

RFID tag issuing apparatus and RFID tag misalignment detecting method

An RF tag reader and writer is provided which includes: a communication unit that communicates with one or more RF tags as an information acquisition target using an anti-collision method of avoiding a collision between signals and that performs an acquisition process of acquiring tag information which is information stored in the one or more RF tags; and a communication success rate calculator that calculates a communication success rate of the communication unit with the one or more RF tags on the basis of the number of times by which the communication unit successfully acquires the tag information from the one or more RF tags within a predetermined period and the number of times by which the communication unit performs a communication process with the one or more RF tags in a state where the collision between signals is avoided within the predetermined period.

RF tag reader and writer

A mount sheet having a plurality of radio tags attached at an interval to it is run over a radio communicating section. The radio communicating section has a metal member providing a conveying surface with a slit formed therein. A dielectric member is arranged on a lower surface of the metal member with a projecting section inserted into the slit and, by doing so, the top surface of the projecting section is set flush with the top surface of the metal member. An antenna of the radio communicating section is located beneath the projecting section of the dielectric member and this antenna is held within the metal case. When any radio tag being an object of a radio communication is located over the slit, the radio communicating section positively makes radio communication with the radio tag through the antenna.

Radio tag issuing apparatus and tag issuing method

The present invention relates to an RF tag reader and writer including: a communication unit which communicates with an RF tag as a target from which information is obtained and obtains the information held in the RF tag; and a communication stability determination unit which determines that stable communication with a specific RF tag is being established when the same information is obtained over a predetermined plural number of times from the RF tag communicating with the communication unit.

In an article management apparatus in which the weight of a bottle, including content, placed on a weighing scale is measured and tag data of a radio tag, indicating content of the bottle, which is affixed on the bottle is read out in a non-contact manner by a radio tag reading section through an antenna when the bottle is placed on the weighing scale, a compound data for discriminating whether or not content in a bottle is compoundable with contents in other bottles is stored. It is determined, based on the compound data stored, whether content of a first bottle on which a first radio tag is affixed can be compounded with content of a second bottle on which a second radio tag is affixed when the radio tag reading section reads out tag data of first and second radio tags.

Article management apparatus and its system

A commodity management apparatus includes, a weighing dish on which a container having a wireless tag attached thereto is mounted, an antenna which forms a region to communicate with the wireless tag from the side part of the weighing dish to the upper part of the weighing dish, a tag reader which contactlessly reads, via the antenna, data in the wireless tag attached to the container, a weight detection unit which detects the weight of the container mounted on the weighing dish, and an output control unit which outputs the weight of the container detected by the weight detection unit and the data in the wireless tag read by the tag reader.

Commodity management apparatus

An article data processing apparatus is provided with a first read instructing section which instructs a wireless system reading apparatus for reading identification information items stored in RFID tags attached to articles for sale to read the identification information items, a first receiving section which receives the identification information items from the wireless system reading apparatus corresponding to the first read instructing section, and a first storing section which stores the identification information items received by the first receiving section in a predetermined storage region, where, even in an arrangement that RFID tags of a plurality of articles for sale are hidden behind other articles for sale, the RFID tags can be read.

Growing community of inventors

Shizuoka-ken, Japan

Kouichi Sano