Patents by Inventor Joo-Yul Ko

Joo-Yul Ko 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).

  • Patent number: 11112914
    Abstract: A force operation sensing device is provided. The device includes an input operation unit comprising a first operating member integrally formed with a housing, a magnetic member disposed inside the input operation unit, and an oscillating circuit comprising a first inductor element and a second inductor element, wherein when a force operation is applied to the first operating member, the oscillating circuit is configured to generate a first variable resonant frequency based on an interaction between the first operating member and the first inductor element, and generate a second variable resonant frequency based on an interaction between the magnetic member and the second inductor element.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: September 7, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung Lee, Joo Yul Ko
  • Publication number: 20210247870
    Abstract: A self-checking circuit includes: an edge detector configured to output an edge detection signal having a pulse generated during detection of an edge of a pulse signal having a pulse train; a charging and discharging circuit configured to perform a charging operation and a discharging operation based on the edge detection signal to generate a detection voltage; and a comparison circuit configured to check whether the pulse signal is normal, based on the detection voltage, to output a checking signal.
    Type: Application
    Filed: October 1, 2020
    Publication date: August 12, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Eui PARK, Joo Yul KO
  • Patent number: 11086383
    Abstract: A moving object sensing control circuit includes: a control circuit configured to determine, based on a mode signal, whether to operate in a sensing mode or a power saving mode, and control, in the power saving mode, a sensing operation in a sensing stage and a standby operation in a standby stage; an LC oscillation circuit configured to generate an oscillation signal based on an impedance value corresponding to relocation of a moving object, by performing the sensing operation or the standby operation in response to control of the control circuit; and a sensing circuit configured to obtain a period count value of the sensing oscillation signal using a reference oscillation signal and a main oscillation signal, and output an output signal having movement information of the moving object based on the period count value, by performing the sensing operation in response to the control of the control circuit.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: August 10, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Woo Lee, Je Hyuk Ryu, Joo Yul Ko, Soo Woong Lee, Yong Woon Ji
  • Publication number: 20210231509
    Abstract: A force sensing device includes: a substrate disposed inside a housing and spaced apart from inner side surfaces of a first force member and a second force member; a first inductor element mounted on a first surface of the substrate and spaced apart from the first force member, the first inductor element having a first inductance, variable at a time of force input pressing the first force member; a second inductor element mounted on the first surface of the substrate and spaced apart from the second force member, the second inductor element having a second inductance, variable at a time of force input; and a support member having one end contacting the first surface of the substrate between the first inductor element and the second inductor element and another end contacting an inner side surface of the housing between the first force member and the second force member.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 29, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Joo HONG, Joo Yul KO, Je Hyuk RYU
  • Patent number: 11075634
    Abstract: A switching operation sensing apparatus includes an input operation unit, an oscillation circuit, a frequency digital converter, and a touch detection circuit. The input operation unit includes a first switching member integrally formed with a housing. The oscillation circuit is configured to generate an oscillation signal having a resonant frequency, varying based on a capacitive change or an inductive change, depending on a touch input member in contact with the first switching member during an input operation. The frequency digital converter is configured to convert the oscillation signal into a count value. The touch detection circuit is configured to detect capacitive sensing and inductive sensing based on a slope change of the count value received from the frequency digital converter, and output corresponding touch detection signals of different levels based on the detection.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: July 27, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Je Hyuk Ryu, Joo Yul Ko, Yong Woon Ji, Jong Woo Lee, Byung Joo Hong
  • Patent number: 11073950
    Abstract: A touch sensing device applied to an electronic device including a side portion having a cover that is nonconductive, and a frame that is conductive, includes: a first touch sensing portion including a first sensing electrode and a first sensing inductor disposed inside the cover and electrically connected to each other, wherein, in response to a touch applied through the cover by a human body, a capacitance is varied by the first touch sensing portion according to parasitic capacitance generated between the first sensing electrode and the human body according to the touch applied through the cover; and a reference sensing portion including a reference coil disposed inside the side portion and configured to provide reference inductance of the reference coil that is constant, regardless of a touch applied through the frame.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: July 27, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung Lee, Joo Yul Ko, Woo Young Choi, Soo Woong Lee, Jung Chul Gong, Je Hyuk Ryu, Byung Joo Hong, Tae Ho Lim, Gwang Pyo Park
  • Patent number: 11054940
    Abstract: A touch sensing device includes a touch switching unit including first and second touch members, an oscillator circuit generating a first oscillation signal having a variable resonant frequency based on an application of a touch to the first touch member, and generate a second oscillation signal having a variable resonant frequency based on an application of a touch to the second touch member; a detector circuit generating a first count value by converting the first oscillation signal to a first digital value, and generating a second count value by converting the second oscillation signal to a second digital value, detect an individual touch input based on the first count value and the second count value, and detect a slide touch input when a first touch input to the first touch member and a second touch input to the second touch member are detected within a predetermined slide reference time.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 6, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Joo Hong, Joo Yul Ko, Je Hyuk Ryu
  • Patent number: 11057036
    Abstract: A switching operation sensing device is provided. The device includes a touch operation unit that is integrally formed with a housing and includes first and second touch members disposed in different regions; an oscillator circuit configured to generate a first oscillation signal including a variable resonant frequency when the first touch member is touched and a second oscillation signal including a variable resonant frequency when the second touch member is touched; and a touch detector circuit configured to detect whether at least one of the first and second touch members has been touched, and distinguish touch regions based on the first oscillation signal and the second oscillation signal.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 6, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Woon Ji, Joo Yul Ko, Joo Hyoung Lee, Byung Joo Hong, Je Hyuk Ryu, Jong Woo Lee
  • Patent number: 11048357
    Abstract: A controller IC of a touch sensing apparatus includes an oscillation circuit including a capacitor connected to a sensing coil, a digital converter configured to count an oscillation signal output from the oscillation circuit and to output a count value, and a contact detector configured to calculate variations in the count value during delay times, and to detect a contact strength of an object according to the variations.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: June 29, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Woo Lee, Ho Kwon Yoon, Joo Yul Ko, Byung Joo Hong, Je Hyuk Ryu, Yong Woon Ji
  • Publication number: 20210194482
    Abstract: A touch operation sensing device includes a touch interaction switch integrally formed with a housing and including a conductive first touch member having a first insulated hole, and a sensing coil disposed inside the first touch member. The touch operation sensing device includes an oscillation circuit and a touch detection circuit. The oscillation circuit is configured to generate an oscillation signal having a variable resonance frequency based on a touch capacitance generated by an interaction with a touch body touching the first touch member, the first insulated hole, and the sensing coil. The touch detection circuit is configured to detect a touch interaction using the oscillation signal from the oscillation circuit.
    Type: Application
    Filed: April 9, 2020
    Publication date: June 24, 2021
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Woo Young Choi, Jung Eui Park, Joo Hyoung Lee, Joo Yul Ko, Yong Woon Ji
  • Publication number: 20210157424
    Abstract: A force operation sensing device is provided. The device includes an input operation unit comprising a first operating member integrally formed with a housing, a magnetic member disposed inside the input operation unit, and an oscillating circuit comprising a first inductor element and a second inductor element, wherein when a force operation is applied to the first operating member, the oscillating circuit is configured to generate a first variable resonant frequency based on an interaction between the first operating member and the first inductor element, and generate a second variable resonant frequency based on an interaction between the magnetic member and the second inductor element.
    Type: Application
    Filed: March 18, 2020
    Publication date: May 27, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung LEE, Joo Yul KO
  • Patent number: 11003280
    Abstract: A switching operation sensing apparatus includes an input operation unit including a first detector integrally formed with a housing; a current variable oscillation circuit generating an oscillation signal having a frequency that varies based on a change in a capacitance from a human body touch on the operating unit, or a change in an inductance from a non-human body touch on the operating unit, and regulate an operating current in response to a control signal; an input operation detection circuit identifying the touch to be from the human body touch, and identifying the touch to be from the non-human body touch based on characteristics of the varied frequency, and generating detection signals having different levels based on the identification of the touch; and a control circuit that determines a sensing manner based on the detection signals and generating the control signal current based on the determined sensing manner.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 11, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Soo Woong Lee, Joo Yul Ko, Je Hyuk Ryu
  • Patent number: 11003275
    Abstract: A touch sensing device includes a conductor disposed inside a housing and spaced apart from the housing by a predetermined first distance, a touch member integrated with the housing and including an inductor element disposed inside the housing spaced apart from the conductor by a predetermined second distance, an oscillation circuit including the inductor element, and configured to generate an oscillating signal having different frequency change characteristics for each of a touch input and a touch-force input through the touch member, and an operation detection circuit configured to detect one or more of the touch input and the touch-force input in response to the frequency change characteristics of the oscillating signal from the oscillation circuit.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 11, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Je Hyuk Ryu, Joo Yul Ko, Byung Joo Hong
  • Publication number: 20210124453
    Abstract: A touch sensing device in an electronic device, the electronic device including a touch manipulation unit disposed in a housing of the electronic device, the touch manipulation unit including a first insulating member penetrating through the housing, the touch sensing device including a first sensor unit disposed on an internal surface of the first insulating member, and an oscillation circuit connected to the first sensor unit, the oscillation circuit being configured to generate a first oscillation signal having a first resonance frequency that varies in response to a touch capacitance generated in response to the first insulating member being touched, wherein the first sensor unit contacts the internal surface of the first insulating member, and does not contact the housing.
    Type: Application
    Filed: July 29, 2020
    Publication date: April 29, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung LEE, Joo Yul KO, Woo Young CHOI, Jung Chul GONG
  • Publication number: 20210096631
    Abstract: A moving object sensing control circuit includes: a control circuit configured to determine, based on a mode signal, whether to operate in a sensing mode or a power saving mode, and control, in the power saving mode, a sensing operation in a sensing stage and a standby operation in a standby stage; an LC oscillation circuit configured to generate an oscillation signal based on an impedance value corresponding to relocation of a moving object, by performing the sensing operation or the standby operation in response to control of the control circuit; and a sensing circuit configured to obtain a period count value of the sensing oscillation signal using a reference oscillation signal and a main oscillation signal, and output an output signal having movement information of the moving object based on the period count value, by performing the sensing operation in response to the control of the control circuit.
    Type: Application
    Filed: January 8, 2020
    Publication date: April 1, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Woo LEE, Je Hyuk RYU, Joo Yul KO, Soo Woong LEE, Yong Woon JI
  • Publication number: 20210089187
    Abstract: A touch sensing device includes a touch switching unit including first and second touch members, an oscillator circuit generating a first oscillation signal having a variable resonant frequency based on an application of a touch to the first touch member, and generate a second oscillation signal having a variable resonant frequency based on an application of a touch to the second touch member; a detector circuit generating a first count value by converting the first oscillation signal to a first digital value, and generating a second count value by converting the second oscillation signal to a second digital value, detect an individual touch input based on the first count value and the second count value, and detect a slide touch input when a first touch input to the first touch member and a second touch input to the second touch member are detected within a predetermined slide reference time.
    Type: Application
    Filed: June 17, 2020
    Publication date: March 25, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Joo HONG, Joo Yul KO, Je Hyuk RYU
  • Publication number: 20210064179
    Abstract: A touch operation sensing device configured to be added to an electronic device, the electronic device including a touch member disposed in a housing and having conductivity, the touch operation sensing device includes an oscillation circuit disposed on an internal side of the touch member and including an inductor element and a capacitor element to generate an oscillation signal in response to changed impedance during a touch operation through the touch member, and an insulating member disposed between a first terminal of the inductor element and the touch member, and between a second terminal of the inductor element and the touch member.
    Type: Application
    Filed: March 9, 2020
    Publication date: March 4, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung LEE, Joo Yul KO, Jung Chul GONG
  • Publication number: 20210041982
    Abstract: A switching operation sensing device includes an input operation unit, an oscillator circuit, a frequency digital converter, and a touch-force detector circuit. The input operation unit, integrally formed with a housing, includes a first switch member and a second switch member disposed in different positions. The oscillator circuit is configured to generate a first oscillation signal based on varying capacitance when the first switch member is touched, and a second oscillation signal based on varying inductance when an input force is applied to the second switch member. The frequency digital converter is configured to convert the first oscillation signal to a first count value, and convert the second oscillation signal to a second count value.
    Type: Application
    Filed: March 18, 2020
    Publication date: February 11, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Joo HONG, Joo Yul KO, Je Hyuk RYU
  • Publication number: 20210034177
    Abstract: A touch sensing device, applicable to an electric device including a touch member integrated with a housing, includes an inductor element spaced apart from an internal side surface of the touch member, a support member attached to an internal side surface of the housing or the touch member to support the inductor element disposed thereon, a substrate on which the inductor element is mounted, the substrate being disposed on the support member, and a circuit part connected to the inductor element and configured to detect a touch input and a touch-force input in response to different frequency change characteristics depending on the touch input and the touch-force input through the touch member.
    Type: Application
    Filed: March 25, 2020
    Publication date: February 4, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung LEE, Joo Yul KO
  • Publication number: 20210034186
    Abstract: A touch sensing device includes a conductor disposed inside a housing and spaced apart from the housing by a predetermined first distance, a touch member integrated with the housing and including an inductor element disposed inside the housing spaced apart from the conductor by a predetermined second distance, an oscillation circuit including the inductor element, and configured to generate an oscillating signal having different frequency change characteristics for each of a touch input and a touch-force input through the touch member, and an operation detection circuit configured to detect one or more of the touch input and the touch-force input in response to the frequency change characteristics of the oscillating signal from the oscillation circuit.
    Type: Application
    Filed: March 3, 2020
    Publication date: February 4, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Je Hyuk RYU, Joo Yul KO, Byung Joo HONG