Patents by Inventor Shilin Guo
Shilin Guo 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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Publication number: 20230188312Abstract: A method for establishing synchronization relationship, a chip, an electronic device, and a non-transitory computer-readable storage medium are provided. The method includes the following. A synchronization pulse of the master device is initiated according to a pulse period preset. A start time of a K1th synchronization pulse and a start time of a K2th connection event of a slave device are obtained, and an offset time is obtained according to the start time of the Klth synchronization pulse and the start time of the K2th connection event. First synchronization information is transmitted to the slave device for the slave device to start a local synchronization pulse synchronized with the synchronization pulse of the master device according to the first synchronization information. The first synchronization information carries a count value K1, a count value K2, the offset time, and the pulse period.Type: ApplicationFiled: December 8, 2022Publication date: June 15, 2023Inventors: Shilin GUO, Jinghua ZOU, Bo PI
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Patent number: 11528052Abstract: A data transmission method, a first chip, an electronic device, and a storage medium are provided. Data transmission of the first chip with a second chip is performed in one of a standard working mode based on a standard Bluetooth protocol and a non-standard working mode including at least one of: a first working mode in which data is transmitted with the second chip in a designated first fixed channel of the standard channels; a second working mode in which data is transmitted with the second chip by frequency hopping among extended extension channels; a third working mode in which data is transmitted with the second chip in a designated second fixed channel of the extended extension channels; and a fourth working mode in which data is transmitted with the second chip by frequency hopping among the standard channels and the extended extension channels.Type: GrantFiled: September 15, 2021Date of Patent: December 13, 2022Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventor: Shilin Guo
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Patent number: 11444800Abstract: Provided are a topology switching method based on isochronous channel, an apparatus, a system and a storage medium. The method is applied to a first central slave device. There are a plurality of first isochronous channels between the first central slave device and a master device, and there is a first communication channel between the first central slave device and a peripheral slave device. The method includes: sending, by first central slave device, first isochronization information to peripheral slave device through the first communication channel, where the first isochronization information includes a channel parameter of first isochronous channel, so that peripheral slave device starts data transmission with master device according to the channel parameter of first isochronous channel; and stopping, by first central slave device, data transmission with master device through the first isochronous channel, before peripheral slave device starts data transmission with master device.Type: GrantFiled: September 30, 2020Date of Patent: September 13, 2022Assignee: Shenzhen Goodix Technology Co., Ltd.Inventor: Shilin Guo
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Publication number: 20220231724Abstract: A data transmission method, a first chip, an electronic device, and a storage medium are provided. Data transmission of the first chip with a second chip is performed in one of a standard working mode based on a standard Bluetooth protocol and a non-standard working mode including at least one of: a first working mode in which data is transmitted with the second chip in a designated first fixed channel of the standard channels; a second working mode in which data is transmitted with the second chip by frequency hopping among extended extension channels; a third working mode in which data is transmitted with the second chip in a designated second fixed channel of the extended extension channels; and a fourth working mode in which data is transmitted with the second chip by frequency hopping among the standard channels and the extended extension channels.Type: ApplicationFiled: September 15, 2021Publication date: July 21, 2022Inventor: Shilin GUO
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Patent number: 11129119Abstract: The present application provides a data synchronization method, a device, and a storage medium, where a wireless communication network includes: a master device and N slave devices, and the method is applied to any slave device of the N slave devices and includes: a slave device receives a data packet transmitted by the master device, the data packet including a preamble; the slave device determines a receiving termination time of the preamble, and determines, according to the receiving termination time of the preamble and a delay time configured by the master device for the slave device, a synchronization time with other slave devices in the N slave devices, thereby achieving data synchronization between the slave devices.Type: GrantFiled: November 11, 2019Date of Patent: September 21, 2021Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventor: Shilin Guo
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Publication number: 20210014081Abstract: Provided are a topology switching method based on isochronous channel, an apparatus, a system and a storage medium. The method is applied to a first central slave device. There are a plurality of first isochronous channels between the first central slave device and a master device, and there is a first communication channel between the first central slave device and a peripheral slave device. The method includes: sending, by first central slave device, first isochronization information to peripheral slave device through the first communication channel, where the first isochronization information includes a channel parameter of first isochronous channel, so that peripheral slave device starts data transmission with master device according to the channel parameter of first isochronous channel; and stopping, by first central slave device, data transmission with master device through the first isochronous channel, before peripheral slave device starts data transmission with master device.Type: ApplicationFiled: September 30, 2020Publication date: January 14, 2021Applicant: Shenzhen Goodix Technology Co., Ltd.Inventor: Shilin GUO
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Publication number: 20200145941Abstract: The present application provides a data synchronization method, a device, and a storage medium, where a wireless communication network includes: a master device and N slave devices, and the method is applied to any slave device of the N slave devices and includes: a slave device receives a data packet transmitted by the master device, the data packet including a preamble; the slave device determines a receiving termination time of the preamble, and determines, according to the receiving termination time of the preamble and a delay time configured by the master device for the slave device, a synchronization time with other slave devices in the N slave devices, thereby achieving data synchronization between the slave devices.Type: ApplicationFiled: November 11, 2019Publication date: May 7, 2020Inventor: SHILIN GUO
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Patent number: 10476369Abstract: The present disclosure relates to a circuit arrangement which comprises one high-efficiency fully soft-switching single-stage 3-level power amplifier with dual auxiliary networks. The primary-side passive auxiliary network is formed by one inductor and two capacitors to extend soft switching ranges and avoid switching loss. The secondary-side active auxiliary network is constituted of four switches, three capacitors and two inductors which not only removes or maximally reduces otherwise occurring disruptive spikes but also assists zero voltage switching (ZVS) for switches of active auxiliary network. A predictive gate drive method for driving power switches is presented to guarantee ZVS turn-on. The proposed circuit achieves high level of integration without bulky dc link capacitor, and high-efficiency by single-stage conversion and ZVS for all the switches under different operating conditions.Type: GrantFiled: July 12, 2017Date of Patent: November 12, 2019Inventors: Xue Jian Chen, Shilin Guo, Jianhui Su
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Publication number: 20180034359Abstract: The present disclosure relates to a circuit arrangement which comprises one high-efficiency fully soft-switching single-stage 3-level power amplifier with dual auxiliary networks. The primary-side passive auxiliary network is formed by one inductor and two capacitors to extend soft switching ranges and avoid switching loss. The secondary-side active auxiliary network is constituted of four switches, three capacitors and two inductors which not only removes or maximally reduces otherwise occurring disruptive spikes but also assists zero voltage switching (ZVS) for switches of active auxiliary network. A predictive gate drive method for driving power switches is presented to guarantee ZVS turn-on. The proposed circuit achieves high level of integration without bulky dc link capacitor, and high-efficiency by single-stage conversion and ZVS for all the switches under different operating conditions.Type: ApplicationFiled: July 12, 2017Publication date: February 1, 2018Inventors: Xue Jian CHEN, Shilin GUO, Jianhui SU
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Patent number: 8870326Abstract: A printer is disclosed in one example. The printer controls the amounts of the inks that are used when printing. The printer prints colors near saturation onto a media using mostly a first ink and prints saturated colors onto the media using mostly a second ink. The second ink has a reduced loading of the colorant in the first ink.Type: GrantFiled: October 19, 2011Date of Patent: October 28, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: David H. Donovan, Shilin Guo
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Publication number: 20130100192Abstract: A printer is disclosed. The printer prints colors near saturation using mostly a first ink and prints saturated colors using mostly a second ink. The second ink has a reduced loading of the colorant in the first ink.Type: ApplicationFiled: October 19, 2011Publication date: April 25, 2013Inventors: David H. Donovan, Shilin Guo
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Publication number: 20130004070Abstract: A preferred skin tone region is determined within a luminance-chrominance color space for each of a plurality of luminance values. Additional preferred skin tone regions are determined by interpolation in view of the initially determined preferred skin tone regions. An ellipsoid skin-color model is generated in the luminance-chrominance color space based on the preferred skin tone regions. The ellipsoid skin-color is used to detect a skin color pixel in an image and adjust one or more color values for the skin color pixel.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Inventors: Huanzhao Zeng, Shilin Guo, Tuo Wu
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Patent number: 8100489Abstract: A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.Type: GrantFiled: October 17, 2008Date of Patent: January 24, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dale D. Timm, Jr., John A. Dangelawicz, David H. Donovan, Shilin Guo, Behnam Baslani, David Luis Pereira
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Patent number: 7815275Abstract: Preferably, test-patterns print on separate, multiple print-medium cards, each including a ramp with colors graded along a certain direction—and, superimposed on the ramp, a candidate add-on colorant. Ramps preferably are printed in so-called “customer colors”, common in snapshots and particularly snapshot regions that include sky. Positions or amounts of the candidate add-on colorant canvass a likely range of values that optimize camouflaging or suppression of a banding artifact (due to seams in the pagewide array) that is extended along the same certain direction. For each seam and each “customer color” used, an operator holds up several cards for comparison, selecting the best one to three. Operators thus can evaluate candidate colorant patterns in context of many different tones of the sky and other customer colors.Type: GrantFiled: July 27, 2007Date of Patent: October 19, 2010Inventors: Shilin Guo, Guo Li, Rob Patrick Chohan, Julie Huynh
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Publication number: 20090153605Abstract: A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.Type: ApplicationFiled: October 17, 2008Publication date: June 18, 2009Inventors: Dale D. Timm, JR., John A. Dangelawicz, David H. Donovan, Shilin Guo, Behnam Baslani, David Luis Pereira
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Publication number: 20090028585Abstract: Preferably, test-patterns print on separate, multiple print-medium cards, each including a ramp with colors graded along a certain direction—and, superimposed on the ramp, a candidate add-on colorant. Ramps preferably are printed in so-called “customer colors”, common in snapshots and particularly snapshot regions that include sky. Positions or amounts of the candidate add-on colorant canvass a likely range of values that optimize camouflaging or suppression of a banding artifact (due to seams in the pagewide array) that is extended along the same certain direction. For each seam and each “customer color” used, an operator holds up several cards for comparison, selecting the best one to three. Operators thus can evaluate candidate colorant patterns in context of many different tones of the sky and other customer colors.Type: ApplicationFiled: July 27, 2007Publication date: January 29, 2009Inventors: Shilin Guo, Guo Li, Rob Patrick Chohan, Julie Huynh
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Patent number: 6869650Abstract: The present invention is drawn to the thermal transfer overcoating of images printed on porous media, and methods of overcoating images printed on porous media. Upon use of the systems and methods of the present invention, a thermally coated print is generated that can comprise a porous media substrate having printed thereon a digitally produced image. The digitally produced image and the porous media substrate is thermally coated by an adhesive protective layer, wherein the adhesive protective layer has a tangent d that is greater than 1 and melt viscosity less than 1×105 Pa.·sec. as applied above its phase transition temperature. Thus, the voids in the porous media substrate can be substantially filled, and further, substantially no tags remain on the print.Type: GrantFiled: June 11, 2002Date of Patent: March 22, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric L Burch, Vladek P Kasperchik, Shilin Guo, David J Arcaro, Gary E Hanson, Maximo Gayoso, Richard J McManus, Dan M Weeks
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Patent number: 6679599Abstract: A system and method for drying a printed medium includes a heated roll and a transport mechanism which moves the printed medium against the heated roll to dry the printed medium.Type: GrantFiled: January 31, 2002Date of Patent: January 20, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: J. Grady Jurrens, Eric L. Burch, Vladek P. Kasperchik, Dan M. Weeks, Shilin Guo
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Publication number: 20030228450Abstract: The present invention is drawn to the thermal transfer overcoating of images printed on porous media, and methods of overcoating images printed on porous media. Upon use of the systems and methods of the present invention, a thermally coated print is generated that can comprise a porous media substrate having printed thereon a digitally produced image. The digitally produced image and the porous media substrate is thermally coated by an adhesive protective layer, wherein the adhesive protective layer has a tangent d that is greater than 1 and melt viscosity less than 1×105 Pa.·sec. as applied above its phase transition temperature. Thus, the voids in the porous media substrate can be substantially filled, and further, substantially no tags remain on the print.Type: ApplicationFiled: June 11, 2002Publication date: December 11, 2003Inventors: Eric L. Burch, Vladek P. Kasperchik, Shilin Guo, David J. Arcaro, Gary E. Hanson, Maximo Gayoso, Richard J. McManus, Dan M. Weeks
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Publication number: 20030142188Abstract: A system and method for drying a printed medium includes a heated roll and a transport mechanism which moves the printed medium against the heated roll to dry the printed medium.Type: ApplicationFiled: January 31, 2002Publication date: July 31, 2003Inventors: J. Grady Jurrens, Eric L. Burch, Vladek P. Kasperchik, Dan M. Weeks, Shilin Guo