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公开(公告)号：US20250105849A1
公开(公告)日：2025-03-27
申请号：US18475485
申请日：2023-09-27
Inventor： Feng Lu , Jing Jung Tang
Abstract: An electronic oscillator circuit and a method for controlling an oscillation frequency of a ring oscillator circuit. The circuit includes a plurality of inverter stages each Including an inverter and a trans-resistance switch circuit configured to switch on the inverter during an operation of the electronic oscillator circuit thereby facilitating the inverter to generate an inverter output signal in response to an inverter input signal fed to the inverter; wherein the inverters in the plurality of the inverter stages are connected to form a ring oscillator circuit.
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公开(公告)号：US20240330618A1
公开(公告)日：2024-10-03
申请号：US18193989
申请日：2023-03-31
Inventor： Jing Jung Tang , Leung Chiu , Xiao Sheng Chen
IPC: G06K7/10
CPC classification number: G06K7/10356 , G06K7/10346
Abstract: There is provided an antenna for a radio frequency identification (RFID) tag, which includes a loop antenna, an amplifying antenna, an additional antenna structure to modify impedance of the entire antenna. The additional antenna structure has a first electromagnetic coupling with the amplifying antenna and a second electromagnetic coupling with the loop antenna.
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公开(公告)号：US20250094744A1
公开(公告)日：2025-03-20
申请号：US18899087
申请日：2024-09-27
Inventor： Jing Jung Tang , Leung Chiu , Xiao Sheng Chen
IPC: G06K7/10
Abstract: There is provided an antenna for a radio frequency identification (RFID) tag, which includes a loop antenna, an amplifying antenna, an additional antenna structure to modify impedance of the entire antenna. The additional antenna structure has a first electromagnetic coupling with the amplifying antenna and a second electromagnetic coupling with the loop antenna.
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Patent Agency Ranking
公开(公告)号：US12197991B2
公开(公告)日：2025-01-14
申请号：US18193989
申请日：2023-03-31
Inventor： Jing Jung Tang , Leung Chiu , Xiao Sheng Chen
IPC: G06K7/10
Abstract: There is provided an antenna for a radio frequency identification (RFID) tag, which includes a loop antenna, an amplifying antenna, an additional antenna structure to modify impedance of the entire antenna. The additional antenna structure has a first electromagnetic coupling with the amplifying antenna and a second electromagnetic coupling with the loop antenna.
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公开(公告)号：US12249985B2
公开(公告)日：2025-03-11
申请号：US18184941
申请日：2023-03-16
Inventor： Feng Lu , Jing Jung Tang
IPC: H03K19/0185 , H03K3/356 , H03K17/10
Abstract: A voltage comparator circuit for a power source having an energy harvester and an energy storage. The circuit comprises a first voltage input node and a second voltage input node arranged to respectively receive a first voltage level of a first output of the energy harvester and a voltage level of a second output of the energy storage; an output node arranged to switch in response to a comparison of the first and second first voltage levels; and a plurality of semiconductor junction devices arranged to provide a floating local ground arranged to vary in response to a change of the first and/or the second voltage level, wherein the floating local ground has a voltage level higher than an absolute ground connected to the voltage comparator circuit; wherein the floating local ground is arranged to prevent a breakdown of circuit components due to a voltage difference connected at terminals of each of the circuit component exceeding a breakdown voltage of the respective circuit component.
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公开(公告)号：US11721901B2
公开(公告)日：2023-08-08
申请号：US17139046
申请日：2020-12-31
Inventor： Leung Chiu , Jing Jung Tang
CPC classification number: H01Q7/00 , H01Q1/2208 , H01Q9/285
Abstract: A radio frequency communication device and its use for a transportation system. The radio frequency communication device includes a supporting member, through which the device is arranged to attach to a cylindrical structure; and a conductive planar portion arranged to removably secure on the supporting member, the conductive planar portion includes a conductive loop being electrically connected in between the conductive planar portion and the supporting member, arranged to generate a radio frequency radiation; wherein the supporting member includes multiple flat portions arranged to fit the radio frequency device onto the cylindrical structure.
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公开(公告)号：US11436462B2
公开(公告)日：2022-09-06
申请号：US17139101
申请日：2020-12-31
Inventor： Leung Chiu , Jing Jung Tang
IPC: G06K19/077 , G06K19/00
Abstract: An accessory for a tag device and a RFID tagging device using the accessory. The accessory includes a tag holder defining with a slot arranged to receive the tag device and to removably secure the tag device in a predetermined position; and an antenna provided on the tag holder, wherein the antenna has a radiator arranged to couple to a feeder of the tag device when the tag device is positioned in the predetermined position within the slot.
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公开(公告)号：US20220207318A1
公开(公告)日：2022-06-30
申请号：US17139101
申请日：2020-12-31
Inventor： Leung Chiu , Jing Jung Tang
IPC: G06K19/077
Abstract: An accessory for a tag device and a RFID tagging device using the accessory. The accessory includes a tag holder defining with a slot arranged to receive the tag device and to removably secure the tag device in a predetermined position; and an antenna provided on the tag holder, wherein the antenna has a radiator arranged to couple to a feeder of the tag device when the tag device is positioned in the predetermined position within the slot.
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