Patents Assigned to Anapass Inc.
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Patent number: 11637424Abstract: An electrical stress protection circuit includes a detection circuit including a first transistor connected to a driving voltage rail and turned on when electrical stress is provided, and a bypass transistor turned on in response to a signal output when the first transistor is turned on and configured to provide electrical stress to a reference voltage rail. An electronic device configured to perform a predetermined function, includes a detection circuit including a first transistor connected to a driving voltage rail and turned on when electrical stress is provided, and an electrical stress protection circuit including a bypass transistor turned on in response to a signal output when the first transistor is turned on and configured to provide electrical stress to a reference voltage rail.Type: GrantFiled: February 2, 2021Date of Patent: April 25, 2023Assignee: Anapass Inc.Inventor: Byung Il Hong
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Patent number: 11532258Abstract: A display device for displaying an image, includes: a data line driver which includes a buffer configured to supply a reference voltage to a load including pixels and a boost circuit configured to supply a charging voltage to the load including the pixels; and a calibration unit which controls the boost circuit to supply the charging voltage to the load for a driving time and controls the driving time according to a difference between a target voltage and a voltage formed after charge sharing is performed in the load to which the charging voltage is supplied.Type: GrantFiled: May 18, 2022Date of Patent: December 20, 2022Assignee: Anapass Inc.Inventors: Joon Bae Park, Jun Young Jang, Hyun Seung Lee, Dong Joon Lee
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Publication number: 20220277682Abstract: A display device for displaying an image, includes: a data line driver which includes a buffer configured to supply a reference voltage to a load including pixels and a boost circuit configured to supply a charging voltage to the load including the pixels; and a calibration unit which controls the boost circuit to supply the charging voltage to the load for a driving time and controls the driving time according to a difference between a target voltage and a voltage formed after charge sharing is performed in the load to which the charging voltage is supplied.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Applicant: Anapass Inc.Inventors: Joon Bae PARK, Jun Young JANG, Hyun Seung LEE, Dong Joon LEE
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Patent number: 11367372Abstract: A method of calibrating a boost circuit includes: resetting a load to a reference voltage; supplying a charging voltage to the load through a boost circuit for a driving time such that charge sharing is performed in the load; comparing a voltage of the load after the charge sharing with a target voltage; and adjusting a duration of the driving time according to a result of the comparing.Type: GrantFiled: February 4, 2021Date of Patent: June 21, 2022Assignee: Anapass Inc.Inventors: Joon Bae Park, Jun Young Jang, Hyun Seung Lee, Dong Joon Lee
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Patent number: 11183127Abstract: A method for driving a display, a display device, and a source driver. The method includes receiving and storing data obtained by dividing and compressing an image frame, decompressing the data, scanning the decompressed data, storing a result of the scanning, and displaying an image corresponding to the scan result.Type: GrantFiled: March 30, 2020Date of Patent: November 23, 2021Assignee: Anapass Inc.Inventors: Joon Bae Park, Do Wan Kim
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Patent number: 11176868Abstract: Disclosed is a method for driving a display. The method includes calculating differences between digital codes corresponding to grayscale voltages each provided to pixels connected to the same data line and gate lines which are sequentially driven, summing digital code differences of a threshold value or more, generating a compensation code corresponding to the summation result, and providing grayscale voltages compensated with the compensation code to pixels of which digital codes have a difference of less than the threshold value.Type: GrantFiled: December 14, 2020Date of Patent: November 16, 2021Assignee: Anapass Inc.Inventors: Joon Bae Park, Jun Young Jang, Hyun Seung Lee, Dong Joon Lee
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Publication number: 20210304652Abstract: A method of calibrating a boost circuit includes: resetting a load to a reference voltage; supplying a charging voltage to the load through a boost circuit for a driving time such that charge sharing is performed in the load; comparing a voltage of the load after the charge sharing with a target voltage; and adjusting a duration of the driving time according to a result of the comparing.Type: ApplicationFiled: February 4, 2021Publication date: September 30, 2021Applicant: Anapass Inc.Inventors: Joon Bae PARK, Jun Young JANG, Hyun Seung LEE, Dong Joon LEE
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Publication number: 20210273448Abstract: An electrical stress protection circuit includes a detection circuit including a first transistor connected to a driving voltage rail and turned on when electrical stress is provided, and a bypass transistor turned on in response to a signal output when the first transistor is turned on and configured to provide electrical stress to a reference voltage rail. An electronic device configured to perform a predetermined function, includes a detection circuit including a first transistor connected to a driving voltage rail and turned on when electrical stress is provided, and an electrical stress protection circuit including a bypass transistor turned on in response to a signal output when the first transistor is turned on and configured to provide electrical stress to a reference voltage rail.Type: ApplicationFiled: February 2, 2021Publication date: September 2, 2021Applicant: Anapass Inc.Inventor: Byung Il HONG
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Publication number: 20210256895Abstract: Disclosed is a method for driving a display. The method includes calculating differences between digital codes corresponding to grayscale voltages each provided to pixels connected to the same data line and gate lines which are sequentially driven, summing digital code differences of a threshold value or more, generating a compensation code corresponding to the summation result, and providing grayscale voltages compensated with the compensation code to pixels of which digital codes have a difference of less than the threshold value.Type: ApplicationFiled: December 14, 2020Publication date: August 19, 2021Applicant: Anapass Inc.Inventors: Joon Bae PARK, Jun Young JANG, Hyun Seung LEE, Dong Joon LEE
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Patent number: 10944405Abstract: Disclosed is a phase-locked loop which alternately operates in a sleep state and an active state. A frequency-divided output signal of the phase-locked loop is synchronized with a frequency-divided reference signal. When the phase-locked loop switches from a sleep state to an active state, a frequency of the frequency-divided output signal is identical to a frequency of a frequency-divided output signal which has been synchronized in a previous active state. Information corresponding to the frequency of the frequency-divided output signal which has been synchronized in the previous active state is stored in a memory device.Type: GrantFiled: November 13, 2019Date of Patent: March 9, 2021Assignee: Anapass Inc.Inventors: Hyung Ki Huh, Dong Joon Lee
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Publication number: 20200226985Abstract: A method for driving a display, a display device, and a source driver. The method includes receiving and storing data obtained by dividing and compressing an image frame, decompressing the data, scanning the decompressed data, storing a result of the scanning, and displaying an image corresponding to the scan result.Type: ApplicationFiled: March 30, 2020Publication date: July 16, 2020Applicant: Anapass Inc.Inventors: Joon Bae PARK, Do Wan KIM
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Patent number: 10643551Abstract: A method for driving a display, a display device, and a source driver. The method includes receiving and storing data obtained by dividing and compressing an image frame, decompressing the data, scanning the decompressed data, storing a result of the scanning, and displaying an image corresponding to the scan result.Type: GrantFiled: March 29, 2018Date of Patent: May 5, 2020Assignee: Anapass Inc.Inventors: Joon Bae Park, Do Wan Kim
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Publication number: 20200083891Abstract: Disclosed is a phase-locked loop which alternately operates in a sleep state and an active state. A frequency-divided output signal of the phase-locked loop is synchronized with a frequency-divided reference signal. When the phase-locked loop switches from a sleep state to an active state, a frequency of the frequency-divided output signal is identical to a frequency of a frequency-divided output signal which has been synchronized in a previous active state. Information corresponding to the frequency of the frequency-divided output signal which has been synchronized in the previous active state is stored in a memory device.Type: ApplicationFiled: November 13, 2019Publication date: March 12, 2020Applicant: Anapass Inc.Inventors: Hyung Ki HUH, Dong Joon LEE
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Patent number: 10521064Abstract: Disclosed a driving method for a capacitance-detection device, the method including: acquiring a noise signal; comparing a magnitude of an acquired noise signal with a threshold value for driving a capacitance-detection device; and adjusting a driving signal, provided to a capacitance-detection device to be driven, according to a result of said comparing. The acquiring the noise signal includes: generating the noise signal corresponding to detected noise; and converting the noise signal into a digital signal.Type: GrantFiled: July 25, 2019Date of Patent: December 31, 2019Assignee: Anapass Inc.Inventors: Woo Seok Choi, Young Hwan Kang
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Patent number: 10516400Abstract: Disclosed is a phase-locked loop and a delay-locked loop. When the phase-locked loop switches from a sleep state to an active state, a frequency of a reference signal is the same as a frequency of a reference signal which has been synchronized in a previous active state. The phase-locked loop alternately operates in a sleep state and an active state. A frequency-divided output signal of the phase-locked loop is synchronized with a frequency-divided reference signal, when the phase-locked loop switches from a sleep state to an active state, a frequency of the frequency-divided output signal is identical to a frequency of a frequency-divided output signal which has been synchronized in a previous active state. Information corresponding to the frequency of the frequency-divided output signal which has been synchronized in the previous active state is stored in a capacitor.Type: GrantFiled: November 6, 2018Date of Patent: December 24, 2019Assignee: Anapass Inc.Inventors: Hyung Ki Huh, Dong Joon Lee
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Publication number: 20190346949Abstract: Disclosed a driving method for a capacitance-detection device, the method including: acquiring a noise signal; comparing a magnitude of an acquired noise signal with a threshold value for driving a capacitance-detection device; and adjusting a driving signal, provided to a capacitance-detection device to be driven, according to a result of said comparing. The acquiring the noise signal includes: generating the noise signal corresponding to detected noise; and converting the noise signal into a digital signal.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Applicant: Anapass Inc.Inventors: Woo Seok CHOI, Young Hwan KANG
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Patent number: 10448048Abstract: A method of motion estimation includes obtaining motion vectors of blocks in a plurality of frames corresponding to a block to be motion estimated, determining whether the obtained motion vectors of the blocks are converged by comparing the obtained motion vectors of the blocks, calculating motion vector dispersity of adjacent blocks of the block to be motion estimated in a state in which the motion vectors are converged, and setting a size of a search range so as to correspond to the calculated motion vector dispersity of the adjacent blocks.Type: GrantFiled: November 13, 2014Date of Patent: October 15, 2019Assignee: Anapass Inc.Inventors: Tae Jin Kim, Daehyun Kim, Jae Hun Lee
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Patent number: 10416824Abstract: Provided are a capacitance-detection device and a driving method for the same. The driving method includes acquiring a noise signal, comparing a magnitude of the acquired noise signal and a threshold value for driving a capacitance-detection device, and adjusting a driving signal provided to a capacitance-detection device to be driven according to a comparison result.Type: GrantFiled: January 16, 2018Date of Patent: September 17, 2019Assignee: ANAPASS INC.Inventors: Woo Seok Choi, Young Hwan Kang
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Patent number: 10382718Abstract: A method of detecting a frame rate of a source, including: receiving frames of a source provided at an input frame rate; providing the frames to a window having a predetermined length to detect the number of original frames included within the window having the length; and multiplying the input frame rate divided by the length and the number of original frames.Type: GrantFiled: November 14, 2018Date of Patent: August 13, 2019Assignee: Anapass Inc.Inventors: Jae Hun Lee, Dae Hyun Kim, Tae Jin Kim
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Publication number: 20190199961Abstract: A method of detecting a frame rate of a source, including: receiving frames of a source provided at an input frame rate; providing the frames to a window having a predetermined length to detect the number of original frames included within the window having the length; and multiplying the input frame rate divided by the length and the number of original frames.Type: ApplicationFiled: November 14, 2018Publication date: June 27, 2019Applicant: Anapass Inc.Inventors: Jae Hun LEE, Dae Hyun KIM, Tae Jin KIM