Patents by Inventor Tzong-Honge Shieh
Tzong-Honge Shieh 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: 20240096289Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.Type: ApplicationFiled: February 13, 2023Publication date: March 21, 2024Applicant: Novatek Microelectronics Corp.Inventors: Yi-Yang Tsai, Hung-Ho Huang, Tzong-Honge Shieh, Chieh-An Lin, Po-Hsiang Fang, Jhih-Siou Cheng
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Patent number: 11074851Abstract: A driving apparatus capable of driving a display panel is provided. The driving apparatus can include a multiplexer and an output circuit. The multiplexer may include at least one first input terminal configured to receive information data in a first mode, at least one second input terminal configured to receive display data in a second mode, and at least one output terminal coupled to at least one input terminal of the output circuit. The output circuit can be configured to convert digital data into an analog voltage and output the analog voltage via at least one output terminal of the output circuit. The output circuit can be configured to convert the information data in the first mode and convert the display data into at least one driving voltage for driving at least one data line of the display panel in the second mode. The information data cannot be used for driving the display panel to present an image.Type: GrantFiled: July 24, 2020Date of Patent: July 27, 2021Assignee: Novatek Microelectronics Corp.Inventors: Po-Hsiang Fang, Tzong-Honge Shieh
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Publication number: 20200365073Abstract: A driving apparatus capable of driving a display panel is provided. The driving apparatus can include a multiplexer and an output circuit. The multiplexer may include at least one first input terminal configured to receive information data in a first mode, at least one second input terminal configured to receive display data in a second mode, and at least one output terminal coupled to at least one input terminal of the output circuit. The output circuit can be configured to convert digital data into an analog voltage and output the analog voltage via at least one output terminal of the output circuit. The output circuit can be configured to convert the information data in the first mode and convert the display data into at least one driving voltage for driving at least one data line of the display panel in the second mode. The information data cannot be used for driving the display panel to present an image.Type: ApplicationFiled: July 24, 2020Publication date: November 19, 2020Applicant: Novatek Microelectronics Corp.Inventors: Po-Hsiang Fang, Tzong-Honge Shieh
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Patent number: 10832617Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.Type: GrantFiled: March 26, 2020Date of Patent: November 10, 2020Assignee: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Ju-Lin Huang
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Patent number: 10777120Abstract: A driving apparatus capable of driving a display panel and an operation method thereof are provided. The driving apparatus includes an output circuit, a receiver circuit and a multiplexer. The output circuit is configured to output a driving voltage for driving a data line of the display panel. The receiver circuit is configured to receive display data for driving the display panel to present an image. A first input terminal of the multiplexer is configured to receive information data, wherein the information data is not configured to drive the display panel to present an image. A second input terminal of the multiplexer is coupled to an output terminal of the receiver circuit. An output terminal of the multiplexer is coupled to an input terminal of the output circuit.Type: GrantFiled: March 12, 2018Date of Patent: September 15, 2020Assignee: Novatek Microelectronics Corp.Inventors: Po-Hsiang Fang, Tzong-Honge Shieh
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Patent number: 10762846Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels and a signal convertor. The plurality of sensing channels are configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals. The signal convertor is coupled to the sensing channels and configured to receive the sensing signals from the sensing channels. The signal convertor receives the sensing signals from the sensing channels in different sequences during different sensing periods.Type: GrantFiled: September 4, 2018Date of Patent: September 1, 2020Assignee: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Chieh-An Lin, Ju-Lin Huang
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Publication number: 20200226981Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.Type: ApplicationFiled: March 26, 2020Publication date: July 16, 2020Applicant: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Ju-Lin Huang
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Patent number: 10673397Abstract: An operational amplifier includes an output node; an output stage, comprising a plurality of output current paths and a plurality of control nodes, wherein the plurality of control nodes are respectively coupled to the plurality of output current paths, and the plurality of output current paths are coupled to the output node and respectively coupled to a plurality of power supply sources providing different voltages; and a selecting unit, configured to couple an internal output node of the operational amplifier to one of the plurality of control nodes of the output stage.Type: GrantFiled: August 29, 2017Date of Patent: June 2, 2020Assignee: NOVATEK Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh
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Patent number: 10643543Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.Type: GrantFiled: September 3, 2018Date of Patent: May 5, 2020Assignee: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Ju-Lin Huang
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Publication number: 20190181103Abstract: The disclosure provides a trimming method, a trimming circuitry, and a trimming system for an IC with memory usage reduction. The method is applicable to a system including a tester, a characteristic adjustable circuit, and a trimming circuitry having a characteristic outputting circuit, a data memory, and a trim memory. The method includes the following steps. Under each condition, output signals respectively corresponding to trim settings are received from the characteristic adjustable circuit by the characteristic outputting circuit to obtain output values of the condition, a statistical parameter associated with the output values of the condition is calculated by the tester. The statistical parameter of at least one of the conditions is written into the data memory by the tester. An optimal trim setting of the characteristic adjustable circuit is determined according to the statistical parameters under all the conditions and written into the trim memory by the tester.Type: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Applicant: Novatek Microelectronics Corp.Inventors: Tzong-Honge Shieh, Po-Hsiang Fang
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Publication number: 20190156754Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels and a signal convertor. The plurality of sensing channels are configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals. The signal convertor are coupled to the sensing channels and configured to receive the sensing signals from the sensing channels. The signal convertor receives the sensing signals from the sensing channels in different sequences during different sensing periods.Type: ApplicationFiled: September 4, 2018Publication date: May 23, 2019Applicant: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Chieh-An Lin, Ju-Lin Huang
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Publication number: 20190156736Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.Type: ApplicationFiled: September 3, 2018Publication date: May 23, 2019Applicant: Novatek Microelectronics Corp.Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh, Ju-Lin Huang
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Patent number: 10297558Abstract: The disclosure provides a trimming method, a trimming circuitry, and a trimming system for an IC with memory usage reduction. The method is applicable to a system including a tester, a characteristic adjustable circuit, and a trimming circuitry having a characteristic outputting circuit, a data memory, and a trim memory. The method includes the following steps. Under each condition, output signals respectively corresponding to trim settings are received from the characteristic adjustable circuit by the characteristic outputting circuit to obtain output values of the condition, a statistical parameter associated with the output values of the condition is calculated by the tester. The statistical parameter of at least one of the conditions is written into the data memory by the tester. An optimal trim setting of the characteristic adjustable circuit is determined according to the statistical parameters under all the conditions and written into the trim memory by the tester.Type: GrantFiled: December 12, 2017Date of Patent: May 21, 2019Assignee: Novatek Microelectronics Corp.Inventors: Tzong-Honge Shieh, Po-Hsiang Fang
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Publication number: 20190051232Abstract: A driving apparatus capable of driving a display panel and an operation method thereof are provided. The driving apparatus includes an output circuit, a receiver circuit and a multiplexer. The output circuit is configured to output a driving voltage for driving a data line of the display panel. The receiver circuit is configured to receive display data for driving the display panel to present an image. A first input terminal of the multiplexer is configured to receive information data, wherein the information data is not configured to drive the display panel to present an image. A second input terminal of the multiplexer is coupled to an output terminal of the receiver circuit. An output terminal of the multiplexer is coupled to an input terminal of the output circuit.Type: ApplicationFiled: March 12, 2018Publication date: February 14, 2019Applicant: Novatek Microelectronics Corp.Inventors: Po-Hsiang Fang, Tzong-Honge Shieh
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Publication number: 20180254758Abstract: An operational amplifier includes an output node; an output stage, comprising a plurality of output current paths and a plurality of control nodes, wherein the plurality of control nodes are respectively coupled to the plurality of output current paths, and the plurality of output current paths are coupled to the output node and respectively coupled to a plurality of power supply sources providing different voltages; and a selecting unit, configured to couple an internal output node of the operational amplifier to one of the plurality of control nodes of the output stage.Type: ApplicationFiled: August 29, 2017Publication date: September 6, 2018Inventors: Jhih-Siou Cheng, Tzong-Honge Shieh
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Patent number: 8816788Abstract: A frequency generator with frequency jitter is disclosed. The frequency generator comprises a capacitor, a comparing unit, a charging and discharging unit, a delay unit, and a charging and discharging switch unit. The comparing unit is coupled to the capacitor and generates a charging and discharging control signal according to a voltage of the capacitor. The charging and discharging unit is coupled to the capacitor. The delay unit is coupled to the comparing unit and receives a delay signal. The delay unit delays the charging and discharging control signal according to the delay signal to generate a charging and discharging delay signal. The charging and discharging switch unit is coupled to the charging and discharging unit and the delay unit, and charges or discharges the capacitor according to the charging and discharging delay signal.Type: GrantFiled: April 26, 2011Date of Patent: August 26, 2014Assignee: Analog Vision Technology Inc.Inventor: Tzong-Honge Shieh
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Publication number: 20120081082Abstract: A frequency generator with frequency jitter is disclosed. The frequency generator comprises a capacitor, a comparing unit, a charging and discharging unit, a delay unit, and a charging and discharging switch unit. The comparing unit is coupled to the capacitor and generates a charging and discharging control signal according to a voltage of the capacitor. The charging and discharging unit is coupled to the capacitor. The delay unit is coupled to the comparing unit and receives a delay signal. The delay unit delays the charging and discharging control signal according to the delay signal to generate a charging and discharging delay signal. The charging and discharging switch unit is coupled to the charging and discharging unit and the delay unit, and charges or discharges the capacitor according to the charging and discharging delay signal.Type: ApplicationFiled: April 26, 2011Publication date: April 5, 2012Applicant: ANALOG VISION TECHNOLOGY INC.Inventor: Tzong-Honge Shieh
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Patent number: 7843177Abstract: A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the switching regulator in buck mode, boost mode, or buck-boost mode. In a buck-boost mode, the control logic drives the four switches in an efficiency sequence for reducing energy consumption during the switch transition, on the other side, resistive loss owing to the energy transfer phase is also minimized. Furthermore, the invention is capable of control duty cycle limitation to fit the consideration of the linearity of the converter.Type: GrantFiled: October 31, 2007Date of Patent: November 30, 2010Assignee: Elite Semiconductor Memory Technology Inc.Inventors: Hsin-Hsin Ho, Ke-Horng Chen, Tzong-Honge Shieh
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Publication number: 20090108823Abstract: A high efficiency control circuit for operating a switching regulator is provided. The switching regulator can regulate an output voltage no matter the input voltage is higher, lower, or close to the output voltage. The switching regulator has first, second, third and fourth switches. The control circuit can operate the switching regulator in buck mode, boost mode, or buck-boost mode. In a buck-boost mode, the control logic drives the four switches in an efficiency sequence for reducing energy consumption during the switch transition, on the other side, resistive loss owing to the energy transfer phase is also minimized. Furthermore, the invention is capable of control duty cycle limitation to fit the consideration of the linearity of the converter.Type: ApplicationFiled: October 31, 2007Publication date: April 30, 2009Applicant: ELITE MICROPOWER INC.Inventors: Hsin-Hsin Ho, Ke-Horng Chen, Tzong-Honge Shieh