-
公开(公告)号：US10885287B2
公开(公告)日：2021-01-05
申请号：US16210291
申请日：2018-12-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Tatsuya Ito , Naoto Ikeda , Shunji Mandai
Abstract: An article management system includes multiple reader devices that read the RFID tags attached to the articles. Moreover, a central terminal partitions an article management area into multiple middle areas that are in turn partitioned into small areas, and then causes reader devices arranged in two or more small areas to work in a predetermined order for each small area, to read information of the RFID tags. The range of radio wave interference distance assumed for a reader device in a first middle area partially overlaps with a second middle area. Thus, when causing the reader devices arranged in the first middle area to work in order, the central terminal controls a reader device in the second middle area that lies outside the range of radio wave interference distance from a reader device working in the first middle area.
-
公开(公告)号：US10796113B2
公开(公告)日：2020-10-06
申请号：US16394422
申请日：2019-04-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kunihiro Komaki , Noboru Kato , Tatsuya Ito , Shunji Mandai , Naoto Ikeda
Abstract: A reader device is provided having a wider readable area and a table with the reader device. The reader device includes an antenna element communicating with an RFID tag attached to an article, a reader module electrically connected to the antenna element and reading information of the RFID tag through the antenna element, and a case housing the antenna element and the reader module. Moreover, the antenna element includes a first dipole antenna having a first element axis extending in a first direction, and a second dipole antenna having a second element axis extending in a second direction crossing the first direction.
-
公开(公告)号：US20190251306A1
公开(公告)日：2019-08-15
申请号：US16394422
申请日：2019-04-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kunihiro Komaki , Noboru Kato , Tatsuya Ito , Shunji Mandai , Naoto Ikeda
Abstract: A reader device is provided having a wider readable area and a table with the reader device. The reader device includes an antenna element communicating with an RFID tag attached to an article, a reader module electrically connected to the antenna element and reading information of the RFID tag through the antenna element, and a case housing the antenna element and the reader module. Moreover, the antenna element includes a first dipole antenna having a first element axis extending in a first direction, and a second dipole antenna having a second element axis extending in a second direction crossing the first direction.
-
公开(公告)号：US20180145242A1
公开(公告)日：2018-05-24
申请号：US15873223
申请日：2018-01-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： TAKEAKI TAMAYAMA , Tatsuya Ito
IPC: H01L41/04 , H02M7/12 , H02M7/5387 , G05F1/46 , H01L41/107 , H01L41/113 , H02N2/18
CPC classification number: H01L41/044 , G05F1/46 , H01L41/107 , H01L41/113 , H02M3/3376 , H02M7/06 , H02M7/12 , H02M7/53871 , H02M2001/0006 , H02M2001/0045 , H02M2001/0058 , H02M2001/007 , H02N2/181 , Y02B70/1491
Abstract: An AC adaptor is provided that includes a piezoelectric transformer, a switching circuit that is connected to an input electrode of the piezoelectric transformer and performs conversion of an input voltage by turning on and turning off switching elements. Moreover, a diode bridge and a smoothing capacitor are connected to output electrodes and a parallel circuit is connected between an input electrode and the switching circuit and includes a capacitor and a diode. In addition, a rectifying and smoothing circuit is connected in parallel with the parallel circuit and includes a diode and a capacitor. Accordingly, a power supply circuit and an AC adaptor are provided that generate an auxiliary power supply without hindering reduction in size.
-
-
-
Search Results
4
records
(took 0.015 seconds)
