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公开(公告)号：US20220377837A1
公开(公告)日：2022-11-24
申请号：US17325570
申请日：2021-05-20
发明人： Yu-Feng CHEN
摘要： There is provided a Bluetooth communication system including a master device and a slave device. After a link is established by a paging procedure, the master device determines whether to stop the link according to a connection quality calculated by a controller thereof. Before replying an accepted message LMP_accepted to the master device, the slave device determines whether to reply the accepted message according to a connection quality calculated by a controller thereof.
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公开(公告)号：US20210320100A1
公开(公告)日：2021-10-14
申请号：US17069936
申请日：2020-10-14
发明人： TSUNG-HAN YANG , CHIA-SO CHUANG
摘要： Disclosed are an electrostatic discharge circuit and a method for preventing malfunctions of an integrated circuit due to a reverse connection of a power source. The electrostatic discharge circuit includes at least one MOSFET for providing an electrostatic discharging current path, and a control circuit coupled to the at least one MOSFET. When an external power supply is reversely connected, the control circuit is configured to change a potential of a base of at least one MOSFET, such that the at least one MOSFET is turned off, thereby preventing the integrated circuit from malfunctioning caused by a current generated by the reverse connection of the external power source flowing through the at least one MOSFET.
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公开(公告)号：US20210216274A1
公开(公告)日：2021-07-15
申请号：US16842132
申请日：2020-04-07
发明人： Kuang-Hu HUANG , Jing-Syuan JIA , Chih-Wei SUNG , Wei-Chung PENG
摘要： There is provided a Bluetooth audio system including a gateway, a primary device and at least one slave device. The gateway and the primary device communicate Bluetooth packets therebetween based on the standard Bluetooth communication protocol. The at least one slave device accomplishes synchronization with the primary device using a user-defined Bluetooth communication protocol so as to listen or snoop the Bluetooth packets exchanged between the gateway and the primary device.
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公开(公告)号：US20210153266A1
公开(公告)日：2021-05-20
申请号：US17163794
申请日：2021-02-01
发明人： HSINHSIANG LIU , CHIH-WEI SUNG , JING-SYUAN JIA , KUANG-HU HUANG
摘要： There is provided a fast paging procedure in which a master device repeatedly sends the paging message to a slave device using predetermined channel frequencies, wherein a selection of the predetermined channel frequencies is not calculated or predicted from the slave's Bluetooth device address. When the master device receives a slave page response message at one frequency among the predetermined channel frequencies, the master device transmits an FHS packet to the slave device at the same frequency in which the slave page response message was received.
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公开(公告)号：US11012842B2
公开(公告)日：2021-05-18
申请号：US16726798
申请日：2019-12-24
发明人： Chih-Wei Sung , Jing-Syuan Jia , I-Ken Ho , Pete Hsinhsiang Liu , Kuang-Hu Huang
摘要： A method applied into a controller of a Bluetooth device includes: providing a first flag and a second flag which are configured as a default value respectively; changing the first flag from the default value when the controller successfully receives the particular packet transmitted from the audio gateway; changing the second flag from the default value when the controller successfully receives an acknowledgement from a secondary device wherein a reception of the acknowledgement indicates that the secondary device successfully receives the particular packet; and transmitting an acknowledgement of a particular packet to an audio gateway when detecting that either the first flag or the second flag changes and becomes different from the default value.
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公开(公告)号：US10939481B1
公开(公告)日：2021-03-02
申请号：US17013893
申请日：2020-09-08
发明人： Hsinhsiang Liu , Chih-Wei Sung , Jing-Syuan Jia , Kuang-Hu Huang
摘要： There is provided a fast paging procedure in which a master device repeatedly sends the paging message to a slave device using predetermined channel frequencies, wherein a selection of the predetermined channel frequencies is not calculated or predicted from the slave's Bluetooth device address. When the master device receives a slave page response message at one frequency among the predetermined channel frequencies, the master device transmits an FHS packet to the slave device at the same frequency in which the slave page response message was received.
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公开(公告)号：US10805967B1
公开(公告)日：2020-10-13
申请号：US16558666
申请日：2019-09-03
发明人： Hsinhsiang Liu , Chih-Wei Sung , Jing-Syuan Jia , Kuang-Hu Huang
摘要： There is provided a fast paging procedure in which a master device repeatedly sends the paging message to a slave device using predetermined channel frequencies, wherein a selection of the predetermined channel frequencies is not calculated or predicted from the slave's Bluetooth device address. When the master device receives a slave page response message at one frequency among the predetermined channel frequencies, the master device transmits an FHS packet to the slave device at the same frequency in which the slave page response message was received.
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公开(公告)号：US10707757B2
公开(公告)日：2020-07-07
申请号：US16546457
申请日：2019-08-21
发明人： Lien-Sheng Wei
摘要： There is provided a reference voltage generator for providing an adaptive voltage. The reference voltage generator includes a steady current source and a PMOS transistor and an NMOS transistor cascaded to each other. A reference voltage provided by the reference voltage generator is determined by gate-source voltages of the PMOS transistor and the NMOS transistor. As said gate-source voltages vary with the temperature and manufacturing process, the reference voltage forms a self-adaptive voltage.
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公开(公告)号：US10448232B2
公开(公告)日：2019-10-15
申请号：US16377268
申请日：2019-04-08
申请人： PixArt Imaging Inc.
发明人： Chih-Wei Sung , Pete Hsinhsiang Liu , Jing-Syuan Jia , Wei-Chung Peng , Kuang-Hu Huang , Jeng-Hong Chen , I-Ken Ho , De-Hao Tseng
摘要： A method applied into a wireless Bluetooth device includes: receiving a particular packet from an audio gateway through a first piconet; receiving a first acknowledgement from a secondary device through a second piconet, the first acknowledgement corresponding to a retransmission of the particular packet; and transmitting a second acknowledgement corresponding to the particular packet to the audio gateway through the first piconet when the particular packet is received through the first piconet and the first acknowledgement corresponding to the retransmission of the particular packet is received through the second piconet.
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