Patents by Inventor Siyuan Xu
Siyuan Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11949926Abstract: Disclosed is a content sharing method, an electronic device and a non-transitory computer-readable storage medium, wherein the content sharing method includes: receiving a target video, determining a type of video sharing based on the target video not being a High Dynamic Range 10+ (HDR10+) standard video, selectively transcoding the target video to a different standard video based on whether the determined type of video sharing is a real-time video sharing, and sending the transcoded target video to a target receiver.Type: GrantFiled: November 19, 2021Date of Patent: April 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yang Xu, Wei Huang, Siyuan Huang
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Patent number: 11748188Abstract: A method for diagnosing secure communication. Before performing a data transmission, a self-diagnosing mode is entered. Error checkpoints are checked to generate a diagnostic status. The diagnostic status is collected. An error handling mode is entered to determine whether an error exists in the diagnostic status. When there is an error, the error is shielded. The method for diagnosing secure communication solves the problem of image burn-in, and further reduces the use of non-volatile memory. Therefore, the size and function utility of the integrated circuit can be further reduced.Type: GrantFiled: September 23, 2021Date of Patent: September 5, 2023Assignee: Morningcore Technology Co., LtdInventors: ShanZhi Chen, GuoBin Su, SiYuan Xu
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Publication number: 20230226563Abstract: A liquid ejecting head includes a nozzle. A sectional shape at a first-position in the nozzle in an ejection-direction is a first-external-shape, and a straight line extending in a second-direction orthogonal to both the ejection-direction and a first-direction being a longitudinal-direction of the first-external-shape and passing through a center of the first-external-shape in the first-direction is a first-center-line. A first-width corresponding to a maximum width in the second-direction in a portion of the first-external-shape on one side in the first-direction with respect to the first-center-line is at a third-position in the first-direction. A second-width corresponding to a maximum width in the second-direction in a portion of the first-external-shape on the other side in the first-direction with respect to the first-center-line is at a fourth-position in the first-direction. A distance between the third-position and the fourth-position is greater than the first-width and the second-width.Type: ApplicationFiled: January 18, 2023Publication date: July 20, 2023Inventors: Takanori AIMONO, Siyuan XU
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Patent number: 11271423Abstract: A circuit includes an emergency lighting system and an AC/DC converter. An output terminal of the emergency lighting system is electrically connected to a LED load, and the other output terminal LED_ON of the emergency lighting system is electrically connected to a switch S2. The switch S2 is controlled by the emergency lighting system. The emergency lighting system includes an AC input detection module, a switching time detection module and a lithium battery. The AC input detection module is electrically connected to a neutral wire VN and a live wire VL. The switching time detection module is electrically connected between an output terminal of the AC input detection module and the LED_ON terminal. An output terminal of the AC/DC converter is electrically connected to a positive electrode of the lithium battery, and the other output terminal of the AC/DC converter is electrically connected to the LED load.Type: GrantFiled: September 30, 2020Date of Patent: March 8, 2022Assignee: SHANGHAI SINCERETEK MICROELECTRONICS TECHNOLOGY CO., LTD.Inventors: Hongyue Du, Siyuan Xu
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Patent number: 11245283Abstract: A circuit includes an emergency lighting system and an AC/DC converter. An output terminal of the emergency lighting system is electrically connected to a LED load, and the other output terminal DIM of the emergency lighting system is electrically connected to a switch S2. The switch S2 is controlled by the emergency lighting system. The emergency lighting system includes an AC input detection module, a switching time detection module and a lithium battery. The AC input detection module is electrically connected to a neutral wire VN and a live wire VL. The switching time detection module is electrically connected between an output terminal of the AC input detection module and the terminal DIM. An output terminal of the AC/DC converter is electrically connected to a positive electrode of the lithium battery, and the other output terminal of the AC/DC converter is electrically connected to the LED load.Type: GrantFiled: September 30, 2020Date of Patent: February 8, 2022Assignee: SHANGHAI SINCERETEK MICROELECTRONICS TECHNOLOGY CO , LTD.Inventors: Hongyue Du, Siyuan Xu
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Publication number: 20220012114Abstract: A method for diagnosing secure communication. Before performing a data transmission, a self-diagnosing mode is entered. Error checkpoints are checked to generate a diagnostic status. The diagnostic status is collected. An error handling mode is entered to determine whether an error exists in the diagnostic status. When there is an error, the error is shielded. The method for diagnosing secure communication solves the problem of image burn-in, and further reduces the use of non-volatile memory. Therefore, the size and function utility of the integrated circuit can be further reduced.Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Applicant: Morningcore Technology Co., LtdInventors: ShanZhi CHEN, GuoBin SU, SiYuan XU
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Publication number: 20210119479Abstract: A circuit includes an emergency lighting system and an AC/DC converter. An output terminal of the emergency lighting system is electrically connected to a LED load, and the other output terminal LED_ON of the emergency lighting system is electrically connected to a switch S2. The switch S2 is controlled by the emergency lighting system. The emergency lighting system includes an AC input detection module, a switching time detection module and a lithium battery. The AC input detection module is electrically connected to a neutral wire VN and a live wire VL. The switching time detection module is electrically connected between an output terminal of the AC input detection module and the LED_ON terminal. An output terminal of the AC/DC converter is electrically connected to a positive electrode of the lithium battery, and the other output terminal of the AC/DC converter is electrically connected to the LED load.Type: ApplicationFiled: September 30, 2020Publication date: April 22, 2021Applicant: Shanghai Sinceretek Microelectronics Technology Co., Ltd.Inventors: Hongyue DU, Siyuan XU
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Publication number: 20210119478Abstract: A circuit includes an emergency lighting system and an AC/DC converter. An output terminal of the emergency lighting system is electrically connected to a LED load, and the other output terminal DIM of the emergency lighting system is electrically connected to a switch S2. The switch S2 is controlled by the emergency lighting system. The emergency lighting system includes an AC input detection module, a switching time detection module and a lithium battery. The AC input detection module is electrically connected to a neutral wire VN and a live wire VL. The switching time detection module is electrically connected between an output terminal of the AC input detection module and the terminal DIM. An output terminal of the AC/DC converter is electrically connected to a positive electrode of the lithium battery, and the other output terminal of the AC/DC converter is electrically connected to the LED load.Type: ApplicationFiled: September 30, 2020Publication date: April 22, 2021Applicant: Shanghai Sinceretek Microelectronics Technology Co., Ltd.Inventors: Hongyue DU, Siyuan XU
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Patent number: 9431895Abstract: An SMPS received a rectified periodic input line voltage and is configure to provide a regulated output. A power switch has a constant turn-on time in a given cycle of the rectified periodic input line voltage. A maximum value of the envelope of peak currents through the power switch is determined and is compared with a reference value, and the power switch turn-on time in the next cycle is adjusted accordingly. The output of the power supply is regulated to a target output value, and the current is in phase with the periodic input line voltage, resulting in a high power factor. No sampling of the line voltage is needed to maintain the high power factor. A controller chip can have as few as five pins. Alternatively, a seven-pin controller chip can have two external resistors for selecting operations in either Boundary Conduction Mode (BCM) or Discontinuous Conduction Mode (DCM).Type: GrantFiled: September 22, 2014Date of Patent: August 30, 2016Assignee: Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.Inventors: Na Liu, Zeqiang Chen, Yajiang Zhu, Jianhua Duan, Chao Deng, Zhimin Hu, Siyuan Xu
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Publication number: 20160087523Abstract: An SMPS received a rectified periodic input line voltage and is configure to provide a regulated output. A power switch has a constant turn-on time in a given cycle of the rectified periodic input line voltage. A maximum value of the envelope of peak currents through the power switch is determined and is compared with a reference value, and the power switch turn-on time in the next cycle is adjusted accordingly. The output of the power supply is regulated to a target output value, and the current is in phase with the periodic input line voltage, resulting in a high power factor. No sampling of the line voltage is needed to maintain the high power factor. A controller chip can have as few as five pins. Alternatively, a seven-pin controller chip can have two external resistors for selecting operations in either Boundary Conduction Mode (BCM) or Discontinuous Conduction Mode (DCM).Type: ApplicationFiled: September 22, 2014Publication date: March 24, 2016Inventors: NA LIU, Zeqiang Chen, Yajiang Zhu, Jianhua Duan, Chao Deng, Zhimin Hu, Siyuan Xu
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Patent number: 8964415Abstract: A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a transformer including a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to the rectifying device. An input capacitor is coupled to the rectifying device and the primary winding of the transformer. A first power switch is coupled to the input capacitor. A control circuit is coupled to the first power switch and is configured to control the first power switch based on a phase or amplitude of the input AC voltage. By controlling the charging and discharging of the input capacitor, power is provided to the primary winding during a longer portion of the AC input voltage cycle, allowing the rectifier device to have a larger conduction angle to increase a power factor (PF).Type: GrantFiled: September 11, 2012Date of Patent: February 24, 2015Assignee: BCD Semiconductor Manufacturing LimitedInventors: Yajiang Zhu, Na Liu, Siyuan Xu
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Patent number: 8923021Abstract: A switch-mode power supply (SMPS) includes a transformer having a primary winding coupled to a power switch, a secondary winding for providing an output of the power supply, and a controller. The controller includes a first input terminal for receiving a current sensing signal related to a current in the primary winding, a second input terminal for receiving a feedback signal related to a current in the secondary winding, and an output terminal for providing a control signal to turn on and off the power switch. When the feedback signal is higher than a first reference voltage, the controller is configured to cause the SMPS to maintain a constant output current at a first current magnitude. When the feedback signal is lower than the first reference voltage, the controller is configured to cause the SMPS to provide a second output current at a second current magnitude higher than the first current magnitude.Type: GrantFiled: December 28, 2011Date of Patent: December 30, 2014Assignee: BCD Semiconductor Manufacturing Co., Ltd.Inventors: Xuegang Ren, Jianhua Duan, Siyuan Xu, Na Liu, Zeqiang Chen
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Publication number: 20130343095Abstract: A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a transformer including a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to the rectifying device. An input capacitor is coupled to the rectifying device and the primary winding of the transformer. A first power switch is coupled to the input capacitor. A control circuit is coupled to the first power switch and is configured to control the first power switch based on a phase or amplitude of the input AC voltage. By controlling the charging and discharging of the input capacitor, power is provided to the primary winding during a longer portion of the AC input voltage cycle, allowing the rectifier device to have a larger conduction angle to increase a power factor (PF).Type: ApplicationFiled: September 11, 2012Publication date: December 26, 2013Applicant: BCD Semiconductor Manufacturing Co., Ltd.Inventors: YAJIANG ZHU, Na Liu, Siyuan Xu
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Publication number: 20130148387Abstract: A switch-mode power supply (SMPS) includes a transformer having a primary winding coupled to a power switch, a secondary winding for providing an output of the power supply, and a controller. The controller includes a first input terminal for receiving a current sensing signal related to a current in the primary winding, a second input terminal for receiving a feedback signal related to a current in the secondary winding, and an output terminal for providing a control signal to turn on and off the power switch. When the feedback signal is higher than a first reference voltage, the controller is configured to cause the SMPS to maintain a constant output current at a first current magnitude. When the feedback signal is lower than the first reference voltage, the controller is configured to cause the SMPS to provide a second output current at a second current magnitude higher than the first current magnitude.Type: ApplicationFiled: December 28, 2011Publication date: June 13, 2013Applicant: BCD Semiconductor Manufacturing LimitedInventors: Xuegang Ren, Jianhua Duan, Siyuan Xu, Na Liu, Zeqiang Chen