Patents by Inventor Ha Jun LEE
Ha Jun LEE 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: 20240290328Abstract: The AI-based sound recognition module includes: a noise removal unit for removing a noise waveform from a sound based on direction information, and outputting a result of the removal; a voice recognition unit for recognizing only a sound from a waveform output from the noise removal unit, and outputting a recognized audio signal; and a sound recognition unit for processing the audio signal to output a voice detection signal, wherein the sound recognition unit extracts a feature from an input audio signal to convert the extracted feature into a pattern vector for teaching or recognition, stores the pattern vector obtained through the conversion in a neuron library, recognizes a pattern of the pattern vector with a sound recognition model generated through library teaching, standardizes the recognized pattern, makes a global decision on the pattern, and outputs a result of the global decision as the voice detection signal.Type: ApplicationFiled: February 26, 2024Publication date: August 29, 2024Inventor: HA JUN LEE
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Patent number: 11335272Abstract: An organic light-emitting diode (OLED) driving characteristic detection circuit is provided. The OLED driving characteristic detection circuit comprising a first current integrator receiving a first current via a first sensing channel and outputting a first sampling voltage based on the first current, a second current integrator receiving a second current via a second sensing channel and outputting a second sampling voltage based on the second current, and a sampling circuit receiving the first and second sampling voltages, followed by storing and holding the first and second sampling voltages, and removing common noise components included in the first and second sampling voltages, a third sampling capacitor and a fourth sampling capacitor which are connected to an output terminal of the second current integrator and store and hold the second sampling voltage, and a plurality of switches which connect first ends of the first sampling capacitor to the fourth sampling capacitor.Type: GrantFiled: February 18, 2020Date of Patent: May 17, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Ha Jun Lee, Jeong Ah Ahn, Ji-Yong Jeong, Suk-Yun Woo, Young Sub Jin
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Patent number: 11127366Abstract: A source driver including a decoder configured to receive image data and an activation signal, determine a target voltage based on the image data, and select at least one gamma line for generating the target voltage from among a plurality of gamma lines, which are configured to transmit different gamma voltages, respectively, and a buffer circuit including a plurality of input terminals and configured to be connected to the selected at least one gamma line and generate an output voltage based on at least one gamma voltage obtained from the selected at least one gamma line may be provided. The decoder may be further configured to select a gamma line group including the selected at least one gamma line to be connected to the plurality of input terminals of the buffer circuit during a slew period of the buffer circuit in accordance with the activation signal.Type: GrantFiled: March 4, 2020Date of Patent: September 21, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Ha Jun Lee, Jun Ho Song, Jeong Ah Ahn, Eun Jong Jang
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Publication number: 20210043148Abstract: An organic light-emitting diode (OLED) driving characteristic detection circuit is provided. The OLED driving characteristic detection circuit comprising a first current integrator receiving a first current via a first sensing channel and outputting a first sampling voltage based on the first current, a second current integrator receiving a second current via a second sensing channel and outputting a second sampling voltage based on the second current, and a sampling circuit receiving the first and second sampling voltages, followed by storing and holding the first and second sampling voltages, and removing common noise components included in the first and second sampling voltages, a third sampling capacitor and a fourth sampling capacitor which are connected to an output terminal of the second current integrator and store and hold the second sampling voltage, and a plurality of switches which connect first ends of the first sampling capacitor to the fourth sampling capacitor.Type: ApplicationFiled: February 18, 2020Publication date: February 11, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Ha Jun LEE, Jeong Ah Ahn, Ji-Yong Jeong, Suk-Yun Woo, Young Sub Jin
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Publication number: 20210012743Abstract: A source driver including a decoder configured to receive image data and an activation signal, determine a target voltage based on the image data, and select at least one gamma line for generating the target voltage from among a plurality of gamma lines, which are configured to transmit different gamma voltages, respectively, and a buffer circuit including a plurality of input terminals and configured to be connected to the selected at least one gamma line and generate an output voltage based on at least one gamma voltage obtained from the selected at least one gamma line may be provided. The decoder may be further configured to select a gamma line group including the selected at least one gamma line to be connected to the plurality of input terminals of the buffer circuit during a slew period of the buffer circuit in accordance with the activation signal.Type: ApplicationFiled: March 4, 2020Publication date: January 14, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Ha Jun LEE, Jun Ho Song, Jeong Ah Ahn, Eun Jong Jang
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Publication number: 20190281956Abstract: A mask pack includes: a pouch storing a mask sheet and having a hole at a side; a blister including a body formed in a plate shape, having a storing portion protruding upward from the center portion to a location outside of the pouch through the hole of the pouch to store a cosmetic liquid, and having other portion fixed to an inner side of the pouch in the pouch, except for the storing portion, and a cover covering a bottom of the body to seal the storing portion and being torn or removed by external force so that the cosmetic liquid is discharged into the pouch and soaks the mask sheet.Type: ApplicationFiled: July 18, 2018Publication date: September 19, 2019Applicant: THE OOZOO Co., Ltd.Inventor: Ha Jun LEE
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Publication number: 20180206617Abstract: The present disclosure provides a facial mask kit in which an appropriate amount of a skin care agent is uniformly distributed on a facial mask sheet, thereby increasing the convenience of use of the facial mask and reducing the waste of the skin care agent. The present disclosure further provides a facial mask kit capable of increasing the efficacy of each component of the skin care agent by distributing the skin care agent having a plurality of components on the facial mask sheet immediately before use.Type: ApplicationFiled: March 23, 2018Publication date: July 26, 2018Applicant: OOZZO SKIN SCIENCE CO., LTD.Inventor: Ha Jun LEE
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Publication number: 20150302822Abstract: A display driver integrated circuit (IC) includes a first driver block, a second driver block, and a transmission control circuit. The transmission control circuit is configured to deserialize pixel data groups of a serial data packet and to alternate sending the deserialized pixel data groups to the first driver block and the second driver block. Each of the pixel data groups includes pixel data for at least one pixel.Type: ApplicationFiled: February 10, 2015Publication date: October 22, 2015Inventors: Ha Jun LEE, Myung Ho SEO, Jin Han KIM, Suk Yun WOO, Seong Jong YOO
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Publication number: 20090039236Abstract: Disclosed herein is an active pixel sensor. A first transistor amplifies voltage generated in response to light at an integration node N. A second transistor is a selecting transistor, and performs a function of selecting a specific pixel from a pixel array. A third transistor resets voltage of the integration node N to voltage supplied from VDD during a reset period. A fourth transistor is a photogate, and performs a function of connecting a photogate capacitance to the integration node N, and thus increasing a dynamic range when the voltage of the integration node N is VDD?Vth (photogate: fourth transistor).Type: ApplicationFiled: September 21, 2007Publication date: February 12, 2009Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Kyoung Hoon YANG, Ha Jun LEE