Patents by Inventor Sang-Ik Cho
Sang-Ik Cho 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: 20230180774Abstract: The present application relates to a processed food distributable at room temperature comprising (a) a first food part comprising a paste, a leafy vegetable, or a combination thereof; and (b) a second food part comprising at least one selected from the group consisting of a meat, a seaweed, a seafood, a root vegetable, a fruit vegetable, and a mushroom, wherein the first and second food parts are separately packaged.Type: ApplicationFiled: May 26, 2017Publication date: June 15, 2023Inventors: Won Il CHO, Nam Ju LEE, Dae Ik KANG, Tae Hyeong KIM, Sang Myung SHIN, Jong Il LEE, Min Ju CHUNG, Su Hee CHOI, Seung Chul KIM
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Patent number: 11468873Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include a processing circuit to implement an adaptive filter having a response that generates an anti-noise signal to reduce the presence of the ambient audio sounds at an error microphone, implement a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal by computing coefficients that determine the response of the adaptive filter to minimize the ambient audio sounds at the error microphone, and responsive to detecting a condition that triggers a reset of the adaptive filter, increment the coefficients in a plurality of steps from initial values of the coefficients at a time of triggering the reset to final values of the coefficients at a conclusion of the reset.Type: GrantFiled: September 29, 2017Date of Patent: October 11, 2022Assignee: Cirrus Logic, Inc.Inventors: Sang-Ik Cho, Dayong Zhou
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Patent number: 11234095Abstract: An audio system (e.g., of an artificial reality headset) determines a position of the headset relative to a position of a head of a user wearing the headset. The determination is based in part on an image of a portion of the head from a tracking camera (e.g., eye tracking and/or face tracking) on the headset. The audio system adjusts an acoustic parameter based in part on the determined position of the headset. The audio system performs an action that uses the adjusted acoustic parameter.Type: GrantFiled: May 21, 2020Date of Patent: January 25, 2022Assignee: Facebook Technologies, LLCInventors: Sang-Ik Cho, Pablo Francisco Faundez Hoffmann, Karol Constantine Hatzilias, Gregory Olegovic Andreev
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Patent number: 10340681Abstract: A power management system comprises a power converter comprising a power stage and configured to detect an abnormal static state of the power stage, to generate a protection signal in response to the detection of the abnormal static state of the power stage, and to stabilize a direct current (DC) power supply voltage in response to an enable signal to generate a DC output voltage, and a main control circuit configured to generate the enable signal for the power converter based on the protection signal received from the power converter.Type: GrantFiled: November 26, 2014Date of Patent: July 2, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Ik Cho, Hyoung-Seok Oh, Je-Hyung Yoon, Yoo-Jun Jeong
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Publication number: 20190103090Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include a processing circuit to implement an adaptive filter having a response that generates an anti-noise signal to reduce the presence of the ambient audio sounds at an error microphone, implement a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal by computing coefficients that determine the response of the adaptive filter to minimize the ambient audio sounds at the error microphone, and responsive to detecting a condition that triggers a reset of the adaptive filter, increment the coefficients in a plurality of steps from initial values of the coefficients at a time of triggering the reset to final values of the coefficients at a conclusion of the reset.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Sang-Ik CHO, Dayong ZHOU
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Patent number: 9531249Abstract: A voltage converter includes a driving device unit, a current sensing unit and a switching control circuit. The driving device unit charges an input power supply voltage in an inductor, connected between a switching node and an output node, in response to a first driving control signal, and discharges the inductor in response to a second driving control signal. The current sensing unit generates first and second sensing signals based on a first sensed current, a second sensed current, a voltage at the switching node and a ground voltage. The switching control circuit generates the first and second driving control signals by performing a pulse-frequency modulation (PFM) and a pulse-width modulation (PWM) based on a feedback voltage, a reference voltage and the first and second sensing signals. The switching control circuit adaptively adjusts off-time when the switching control circuit performs the PFM.Type: GrantFiled: October 20, 2014Date of Patent: December 27, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Je-Hyung Yoon, Ha-Neul Kim, Hyoung-Seok Oh, Kyoung-Jin Lee, Sang-Ik Cho
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Publication number: 20160192345Abstract: A method of adjusting the coverage of a small cell for efficient use of cell resources in which the position of user equipment (UE) in the small cell is estimated using timing advance information of the UE, and the coverage is adjusted in consideration of a load state of the cell and a channel state of the UE.Type: ApplicationFiled: March 10, 2015Publication date: June 30, 2016Inventors: Jin Soup Joung, Seung Hwan Ji, Beom-Sik Kim, Sang-Ik Cho
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Patent number: 9204366Abstract: A flexible connection control femtocell access point device of a small cell and a method of driving the same are provided. A maximum system load is used and network efficiency is maximized by calculating a system load occurring when a mobile station is newly connected according to the type of services that user equipments, that is, mobile stations, in a small cell, such as a femtocell, desire to use, comparing the calculated system load and the maximum system load, and determining whether to limit connection of the mobile station.Type: GrantFiled: March 17, 2014Date of Patent: December 1, 2015Assignee: INNOWIRELESS CO., LTD.Inventors: Jin-Soup Joung, Seung-Hwan Ji, Beom-Sik Kim, Sang-Ik Cho
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Publication number: 20150214827Abstract: A voltage converter includes a driving device unit, a current sensing unit and a switching control circuit. The driving device unit charges an input power supply voltage in an inductor, connected between a switching node and an output node, in response to a first driving control signal, and discharges the inductor in response to a second driving control signal. The current sensing unit generates first and second sensing signals based on a first sensed current, a second sensed current, a voltage at the switching node and a ground voltage. The switching control circuit generates the first and second driving control signals by performing a pulse-frequency modulation (PFM) and a pulse-width modulation (PWM) based on a feedback voltage, a reference voltage and the first and second sensing signals. The switching control circuit adaptively adjusts off-time when the switching control circuit performs the PFM.Type: ApplicationFiled: October 20, 2014Publication date: July 30, 2015Inventors: Je-Hyung YOON, Ha-Neul KIM, Hyoung-Seok OH, Kyoung-Jin LEE, Sang-Ik CHO
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Publication number: 20150208323Abstract: A flexible connection control femtocell access point device of a small cell and a method of driving the same are provided. A maximum system load is used and network efficiency is maximized by calculating a system load occurring when a mobile station is newly connected according to the type of services that user equipments, that is, mobile stations, in a small cell, such as a femtocell, desire to use, comparing the calculated system load and the maximum system load, and determining whether to limit connection of the mobile station.Type: ApplicationFiled: March 17, 2014Publication date: July 23, 2015Applicant: INNOWIRELESS CO., LTDInventors: Jin-Soup JOUNG, Seung-Hwan JI, Beom-Sik KIM, Sang-Ik CHO
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Publication number: 20150205338Abstract: A power management system comprises a power converter comprising a power stage and configured to detect an abnormal static state of the power stage, to generate a protection signal in response to the detection of the abnormal static state of the power stage, and to stabilize a direct current (DC) power supply voltage in response to an enable signal to generate a DC output voltage, and a main control circuit configured to generate the enable signal for the power converter based on the protection signal received from the power converter.Type: ApplicationFiled: November 26, 2014Publication date: July 23, 2015Inventors: SANG-IK CHO, HYOUNG-SEOK OH, JE-HYUNG YOON, YOO-JUN JEONG
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Patent number: 8988136Abstract: A hybrid charge pump including a hybrid circuit configured to snub an over shoot or under shoot present in an input pulse in a snubbing operation if a level of the pulse is a first level, store the pulse in a charging operation if the level of the pulse is a second level different from the first level, and generate a negative voltage from the stored pulse in a negative voltage generation operation.Type: GrantFiled: November 7, 2013Date of Patent: March 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Jehyung Yoon, Hyoung-Seok Oh, Kyoung-Jin Lee, Sang-Ik Cho
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Publication number: 20140316651Abstract: The present invention relates to a vehicle comprising: a third control unit for sensing the gear being placed into a parking mode and the removal of an ignition key; a control unit including a temperature-setting part for setting a temperature for a cooling or heating operation, a second sensor for sensing whether or not an indoor temperature has reached the temperature for the cooling or heating operation, a selection switch for enabling a user to select a cooling mode or a heating mode, and an operating switch for operating a cooler or a heater in accordance with the selected cooling mode or heating mode; a main battery for storing power generated by a generator; a first auxiliary battery and a second auxiliary battery for storing surplus power of the main battery; a first control unit interconnected between the main battery and the first and second auxiliary batteries so as to selectively supply the surplus power of the main battery to the less-charged side of either the first auxiliary battery and the secType: ApplicationFiled: December 10, 2012Publication date: October 23, 2014Applicant: LEADER TECH CO., LTDInventor: SANG IK CHO
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Publication number: 20140159804Abstract: A hybrid charge pump including a hybrid circuit configured to snub an over shoot or under shoot present in an input pulse in a snubbing operation if a level of the pulse is a first level, store the pulse in a charging operation if the level of the pulse is a second level different from the first level, and generate a negative voltage from the stored pulse in a negative voltage generation operation.Type: ApplicationFiled: November 7, 2013Publication date: June 12, 2014Inventors: Jehyung YOON, Hyoung-Seok OH, Kyoung-Jin LEE, Sang-Ik CHO
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Publication number: 20140017508Abstract: Disclosed herein are an insulating base plated with a metal layer, a plating method thereof, and a transparent electrode including the insulating base. During the manufacture of a polymer layer, a structure of an interface layer between a surface of the polymer layer and a metal layer is modified, adhesion with metal is excellent and the polishability of the interface layer is reduced, and thus, the reflectivity of the metal layer is reduced and particular color impression of metal is reduced to obtain black-oxide treated properties. When the metal layer formed on the insulating base is used in a mesh-type transparent electrode having a fine pattern, sufficient adhesion with metal for forming a pattern is obtained and the reflectivity of an adhesion layer of the metal layer is reduced, thereby increasing the visibility. Accordingly, the insulating base may be suitable for products such as transparent electrodes or touch panels.Type: ApplicationFiled: February 21, 2013Publication date: January 16, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Woo Jin Lee, Da Mi Shim, Sang Ik Cho, Jung Wook Seo
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Patent number: 6966077Abstract: Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting the drain valve is mounted. The apparatus for automatically opening and shutting the drain valve in the washstand, wherein a drain-pipe is connected to the bottom of a washstand, and the top of the drain-pipe, i.e., a drain-outlet is opened and shut by a drain valve built in the drain-pipe, including a deceleration motor formed at one side of the drain-pipe, a working cam closely contacting the bottom of the drain valve, wherein the working cam is disposed on the axis of the deceleration motor, and a touch button for turning on/off the deceleration motor, wherein the touch button is disposed at a predetermined portion of the washstand.Type: GrantFiled: February 6, 2004Date of Patent: November 22, 2005Inventor: Sang-Ik Cho
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Publication number: 20050060796Abstract: Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting the drain valve is mounted. The apparatus for automatically opening and shutting the drain valve in the washstand, wherein a drain-pipe is connected to the bottom of a washstand, and the top of the drain-pipe, i.e., a drain-outlet is opened and shut by a drain valve built in the drain-pipe, including a deceleration motor formed at one side of the drain-pipe, a working cam closely contacting the bottom of the drain valve, wherein the working cam is disposed on the axis of the deceleration motor, and a touch button for turning on/off the deceleration motor, wherein the touch button is disposed at a predetermined portion of the washstand.Type: ApplicationFiled: February 6, 2004Publication date: March 24, 2005Inventor: Sang-Ik Cho