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公开(公告)号：US20240305723A1
公开(公告)日：2024-09-12
申请号：US18652842
申请日：2024-05-02
发明人： Yuki Kawasaki , Takashi Tomiyama
CPC分类号： H04N1/00342 , H01Q15/242 , H04N1/2353
摘要： An image forming apparatus, comprising a conveying component configured to convey a first sheet having a first wireless tag and a second sheet having a second wireless tag; a printer configured to form an image in a sheet conveyed by the conveying component; an antenna configured to transmit a radio wave in a first polarization direction and a second polarization direction which is different polarization direction from the first polarization direction; and a processor that starts to convey the first sheet by the conveying component; acquires a response to the radio wave of the first polarization direction transmitted by the antenna from the first wireless tag provided on the first sheet during the first sheet being conveyed by the conveying component, start to convey the second sheet by the conveying component; acquires a response to the radio wave of the second polarization direction transmitted by the antenna from the second wireless tag provided on the second sheet during the second sheet being conveyed by the conveying component, and determines, from the first polarization direction and second polarization direction, the polarization direction appropriate with respect to the first wireless tag and the second wireless tag.
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公开(公告)号：US11643291B2
公开(公告)日：2023-05-09
申请号：US17393044
申请日：2021-08-03
发明人： Koki Nakamura , Takashi Tomiyama
CPC分类号： B65H7/02 , B65H5/06 , G06K7/00 , H04N1/00342 , H04N1/32138
摘要： A sheet conveyance device includes a roller by which a sheet having a wireless tag is conveyed along a path, a communication device configured to transmit a radio signal to the wireless tag and receive a response signal therefrom, and a processor configured to repeatedly perform a process of controlling the roller to convey a sheet along the path while controlling the communication device to transmit the radio signal to a wireless tag of the sheet using a transmission power that is different in each repeat, and acquire a strength of the response signal from the wireless tag, and specify a minimum strength of the response signal that has been acquired in the repeated process, the minimum strength being equal to or greater than a threshold, and set a transmission power that has been used when the minimum strength has been acquired as a reference strength of the radio signal.
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公开(公告)号：US11991333B2
公开(公告)日：2024-05-21
申请号：US18298684
申请日：2023-04-11
CPC分类号： H04N1/32138 , B65H5/062 , B65H29/60 , G06K17/0025 , H04N1/00342 , H04N1/00612 , B65H2553/52
摘要： A sheet conveyance device has a sheet conveyance path with a first path and a second path. A wireless tag communication device can write information to a wireless tag on a sheet on the first and second paths and receive responses from the wireless tag. A controller controls the wireless tag communication device to attempt to write information to the wireless tag while on the first path, then determines whether information has been written to the wireless tag on the first path according to a response received from the wireless tag. The controller switches a conveyance destination for the sheet to the second path if the information has not been written or to a discharge location if the information has been written. The controller then controls the wireless tag communication device to attempt to write information to the wireless tag while the sheet is on the second path.
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公开(公告)号：US11457119B2
公开(公告)日：2022-09-27
申请号：US17241807
申请日：2021-04-27
摘要： According to an embodiment, an image forming apparatus includes a sheet conveyance unit that is configured to transport a print medium along a conveyance path. An antenna is configured to emit radio waves towards a predetermined portion of the conveyance path. A controller is configured to control the antenna to emit the radio waves towards the predetermined portion with a polarization direction set according to a type of the print medium being transported by the sheet conveyance unit. The print medium may have, for example, one or more wireless tags thereon or therein.
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5.发明授权公开(公告)号：US11232338B2
公开(公告)日：2022-01-25
申请号：US17150506
申请日：2021-01-15
发明人： Takashi Tomiyama
摘要： According to one embodiment, a radio tag communication device includes an antenna configured to transmit an interrogation signal and receive a response signal from a radio tag transmitting the response signal in response to the interrogation signal. A radio tag communication control unit of the device is configured to cause the antenna to repeatedly transmit the interrogation signal from a start time of an object conveyance until a reception strength of the response signal received by the antenna is equal to or greater than a predetermined threshold, and then perform writing on the radio tag via the antenna once the reception strength of the response signal received by the antenna is equal to or greater than the predetermined threshold.
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公开(公告)号：US11003869B2
公开(公告)日：2021-05-11
申请号：US16113347
申请日：2018-08-27
发明人： Takashi Tomiyama
摘要： A movable reading apparatus includes antennas, a controller, a reader, and a processor. The antennas perform transmission/reception of signals for communicating with wireless tags while the reading apparatus is moving at a prescribed moving speed. The controller switches operations of a combination of one or more antennas selected from the antennas. The reader reads identification information of the wireless tags from the signals received by the antennas. The processor sets an upper limit value of the moving speed of the reading apparatus based on a first value obtained by dividing a width of a reading range per one of the antennas by the number off combinations of the antennas.
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7.发明授权公开(公告)号：US10542219B2
公开(公告)日：2020-01-21
申请号：US15875663
申请日：2018-01-19
发明人： Takashi Tomiyama
摘要： In one embodiment, an information collecting apparatus has a sensor, an arm, an arm drive mechanism, and a processor. The processor controls the arm drive mechanism to make the arm operate, and thereby makes the sensor move in the vicinity of an article arranged in a shelf. The processor acquires information indicating a state of the article to be measured by the sensor.
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公开(公告)号：US11870963B2
公开(公告)日：2024-01-09
申请号：US17892795
申请日：2022-08-22
CPC分类号： H04N1/32138 , H01Q1/2208 , H01Q15/246 , H04N1/00411 , H04N1/00482 , H04N1/00602
摘要： According to an embodiment, an image forming apparatus includes a sheet conveyance unit that is configured to transport a print medium along a conveyance path. An antenna is configured to emit radio waves towards a predetermined portion of the conveyance path. A controller is configured to control the antenna to emit the radio waves towards the predetermined portion with a polarization direction set according to a type of the print medium being transported by the sheet conveyance unit. The print medium may have, for example, one or more wireless tags thereon or therein.
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公开(公告)号：US11868196B2
公开(公告)日：2024-01-09
申请号：US17970013
申请日：2022-10-20
发明人： Takashi Tomiyama , Sadatoshi Oishi
IPC分类号： G06F11/07 , B41J3/407 , B41J3/50 , B41J29/393
CPC分类号： G06F11/0733 , B41J3/4075 , B41J3/50 , B41J29/393 , G06F11/0769
摘要： An image forming apparatus includes a wireless tag communication device to write data to, and read data from, a wireless tag attached to a sheet. An image forming device in the apparatus is configured to form an image on the sheet. A controller in the apparatus is configured to determine whether a writing of data to a wireless tag was successful based on a notification from the wireless tag communication device and generate investigation support information if the writing was not successful and control the image forming device to form an investigation support image corresponding to the investigation support information if the writing was not successful.
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公开(公告)号：US11659122B2
公开(公告)日：2023-05-23
申请号：US17152521
申请日：2021-01-19
CPC分类号： H04N1/32138 , B65H5/062 , B65H29/60 , G06K17/0025 , H04N1/00342 , H04N1/00612 , B65H2553/52
摘要： A sheet conveyance device has a sheet conveyance path with a first path and a second path. A wireless tag communication device can write information to a wireless tag on a sheet on the first and second paths and receive responses from the wireless tag. A controller controls the wireless tag communication device to attempt to write information to the wireless tag while on the first path, then determines whether information has been written to the wireless tag on the first path according to a response received from the wireless tag. The controller switches a conveyance destination for the sheet to the second path if the information has not been written or to a discharge location if the information has been written. The controller then controls the wireless tag communication device to attempt to write information to the wireless tag while the sheet is on the second path.
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