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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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2.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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4.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：US20210229950A1
公开(公告)日：2021-07-29
申请号：US17152521
申请日：2021-01-19
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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