# US 12,112,226 B2 · Wireless tag reading apparatus, storage medium, and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,226 B2 - Document ID: US12112226B2 - Status: Granted - Kind: B2 - Application number: 18/362,930 - Filed: 2023-07-31 - Published: 2024-03-21 - Granted: 2024-10-08 - Earliest claimed: 2022-09-20 - Assignees: Toshiba Tec Kabushiki Kaisha - Applicants: Toshiba Tec Kabushiki Kaisha - Inventors: Wataru Sakurai; Nobuo Murofushi; Shigeaki Suzuki; Yuki Suzuki; Masaki Kimura; Yuichiro Kawabe; Haruka Otake - Web page: https://patentgrep.com/patent/US12112226B2 ## CPC - G06K 7/10366: {the interrogation device being adapted for miscellaneous applications} - G06K 7/10009: {sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS ## Abstract A wireless tag reading apparatus includes an antenna, a driving mechanism configured to move the antenna to multiple positions, and a controller configured to: upon receipt of a radio wave from a wireless tag via the antenna at each of the multiple positions, obtain tag information stored in the wireless tag and radio wave information related to the radio wave, adjust the radio wave information based on the tag information, and determine whether the wireless tag is a reading target based on information indicating a position of the wireless tag that is output from a model in response to an input of the adjusted radio wave information. ## Claims ### Claim 1 A wireless tag reading apparatus comprising: an antenna; a driving mechanism configured to move the antenna to multiple positions; and a controller configured to: upon receipt of a radio wave from a wireless tag via the antenna at each of the multiple positions, obtain tag information stored in the wireless tag and radio wave information related to the radio wave, adjust the radio wave information based on the tag information, and determine whether the wireless tag is a reading target based on information indicating a position of the wireless tag that is output from a model in response to an input of the adjusted radio wave information. ### Claim 2 (depends on 1) The wireless tag reading apparatus according to claim 1, wherein the controller is configured to: correct a received signal strength indicator included in the radio wave information based on an offset value corresponding to the tag information, and input the radio wave information including the corrected received signal strength indicator to the model. ### Claim 3 (depends on 1) The wireless tag reading apparatus according to claim 1, wherein the controller is configured to: select the model corresponding to the tag information, and determine whether the wireless tag is a reading target using the selected model. ### Claim 4 (depends on 1) The wireless tag reading apparatus according to claim 1, wherein the controller is configured to: correct a received signal strength indicator included in the radio wave information based on an offset value corresponding to the tag information, select the model corresponding to the tag information, and input the radio wave information including the corrected received signal strength indicator to the selected model. ### Claim 5 (depends on 1) The wireless tag reading apparatus according to claim 1, wherein the controller adjusts the radio wave information based on at least one of: tag attribute information indicating a type of the wireless tag and included in or associated with the tag information and object attribute information indicating a type of an object to which the wireless tag is attached and included in or associated with the tag information. ### Claim 6 (depends on 1) The wireless tag reading apparatus according to claim 1, wherein the controller is configured to input, to the model, the radio wave information including a received signal strength indicator and a phase value of the radio wave. ### Claim 7 (depends on 6) The wireless tag reading apparatus according to claim 6, wherein the antenna transmits a transmission wave to the wireless tag and receives the radio wave from the wireless tag as a response to the transmission wave, and the phase value indicates a phase difference between the transmission wave and the radio wave. ### Claim 8 (depends on 6) The wireless tag reading apparatus according to claim 6, wherein the antenna receives radio waves at predetermined time intervals from the wireless tag while being moved, and the controller is configured to input, to the model, the radio wave information including time series data of the received signal strength indicator of the radio waves and time series data of the phase value of the radio waves. ### Claim 9 (depends on 1) The wireless tag reading apparatus according to claim 1, further comprising: a storage device that stores multiple models, parameters of the models being determined at least for respective types of wireless tags or respective types of objects to which the wireless tags are to be attached, wherein the tag information includes or is associated with tag attribute information indicating a type of the wireless tag and object attribute information indicating a type of an object to which the wireless tag is attached, and the controller is configured to select one of the multiple models based on at least one of the tag attribute information and the object attribute information. ### Claim 10 (depends on 9) The wireless tag reading apparatus according to claim 9, wherein the tag attribute information includes at least an inlay type of the wireless tag; and the object attribute information includes at least one of: metal-containing information indicating whether the object contains a metal, metal influence information indicating that the object contains a metal and particularly influences reading performance of the wireless tag reading apparatus, and dielectric constant information indicating whether the object has a high dielectric constant. ### Claim 11 A non-transitory computer readable storage medium storing a program that causes a computer to execute a method comprising: moving an antenna to multiple positions, and upon receipt of a radio wave from a wireless tag via the antenna at each of multiple positions, obtaining tag information stored in the wireless tag and radio wave information related to the radio wave; adjusting the radio wave information based on the tag information; and determining whether the wireless tag is a reading target based on information indicating a position of the wireless tag that is output from a model in response to an input of the adjusted radio wave information. ### Claim 12 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the method further comprises: correcting a received signal strength indicator included in the radio wave information based on an offset value corresponding to the tag information; and inputting the radio wave information including the corrected received signal strength indicator to the model. ### Claim 13 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the method further comprises: selecting the model corresponding to the tag information, wherein the selected model is used to determine whether the wireless tag is a reading target. ### Claim 14 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the method further comprises: correcting a received signal strength indicator included in the radio wave information based on an offset value corresponding to the tag information; selecting the model corresponding to the tag information; and inputting the radio wave information including the corrected received signal strength indicator to the selected model. ### Claim 15 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the radio wave information is adjusted based on at least one of: tag attribute information indicating a type of the wireless tag and included in or associated with the tag information, and object attribute information indicating a type of an object to which the wireless tag is attached and included in or associated with the tag information. ### Claim 16 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the method further comprises: inputting, to the model, the radio wave information including a received signal strength indicator and a phase value of the radio wave. ### Claim 17 (depends on 16) The non-transitory computer readable storage medium according to claim 16, wherein the method further comprises: causing the antenna to transmit a transmission wave to the wireless tag and receive the radio wave from the wireless tag as a response to the transmission wave, and the phase value indicates a phase difference between the transmission wave and the radio wave. ### Claim 18 (depends on 16) The non-transitory computer readable storage medium according to claim 16, wherein the method further comprises: causing the antenna to receive radio waves at predetermined time intervals from the wireless tag while the antenna is being moved; and inputting, to the model, the radio wave information including time series data of the received signal strength indicator of the radio waves and time series data of the phase value of the radio waves. ### Claim 19 (depends on 11) The non-transitory computer readable storage medium according to claim 11, wherein the method further comprises: storing, in a storage device, multiple models, parameters of the multiple models being determined at least for respective types of wireless tags or respective types of objects to which the wireless tags are to be attached, the tag information includes or is associated with tag attribute information indicating a type of the wireless tag and object attribute information indicating a type of an object to which the wireless tag is attached, and the method further comprises: selecting one of the multiple models based on at least one of the tag attribute information and the object attribute information. ### Claim 20 A method performed by a wireless tag reading apparatus including an antenna and a driving mechanism configured to move the antenna to multiple positions, the method comprising: moving an antenna to multiple positions by the driving mechanism, and upon receipt of a radio wave from a wireless tag via the antenna at each of multiple positions, obtaining tag information stored in the wireless tag and radio wave information related to the radio wave; adjusting the radio wave information based on the tag information; and determining whether the wireless tag is a reading target based on information indicating a position of the wireless tag that is output from a model in response to an input of the adjusted radio wave information.