Patents by Inventor Bang-Won Lee

Bang-Won 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).

  • Publication number: 20210298609
    Abstract: Provided is an apparatus for measuring biosignals. The apparatus includes: a multiplexer configured to receive a first biosignal and a second biosignal, and to output either the first biosignal or the second biosignal; an analog-to-digital converter configured to convert an analog signal that is an output of the multiplexer into a digital signal; and a processor configured to perform signal processing on an output of the analog-to-digital converter.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Jong-Ook JEONG, Chang-Ho LEE, Bang Won LEE
  • Patent number: 8581867
    Abstract: A touch sensor device is provided. The touch sensor device includes a touch panel including a plurality of touch mark-keys indicating a position touched by a touch object, a plurality of first touch pads disposed at positions corresponding to the plurality of touch mark-keys of the touch panel and generating touch information of the touch object as a first electrical signal, a plurality of second touch pads disposed between the plurality of first touch pads and generating touch information of a conductive material on the touch object as a second electrical signal, and a touch sensing unit receiving the first electrical signal, outputting a plurality of sensing signals to allow an electronic device to perform predetermined operations corresponding to the touched touch mark-keys, and determining whether the touch of the touch object is a normal one using the first and second electrical signals.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: November 12, 2013
    Assignee: Atlab Inc.
    Inventors: Young-Ho Shin, Jei-Hyuk Lee, Bang-Won Lee, Chul-Yong Joung, Sang-Jin Lee, Jae-Surk Hong, Ju-Min Lee, Duck-Young Jung
  • Publication number: 20130214798
    Abstract: Provided are a capacitance measurement circuit and method. In the capacitance measurement circuit and method, a control unit generates a control code a predetermined number of times according to designated rules regardless of the level of a sensing signal, and the control code is changed to measure a capacitance value when the level of the sensing signal corresponding to the generated control code is determined to be normal. Consequently, the measured capacitance value is hardly affected by noise and can be stably output.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 22, 2013
    Applicant: ATLab Inc.
    Inventors: Bang-Won Lee, Byung-Joon Moon, Jae-Surk Hong
  • Patent number: 8384695
    Abstract: Provided are an automatic impedance adjuster and a control method thereof. The automatic impedance adjuster includes a specific channel for checking an operating environment. When an operation signal of the specific channel is detected or operation signals of all the channels are detected, the automatic impedance adjustment operation is performed to prevent malfunction of the impedance adjustment operation. In addition, malfunction of a touch sensor due to variation of the operating environment can be prevented to improve operating reliability of the touch sensor.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: February 26, 2013
    Assignee: ATLAB Inc.
    Inventors: Bang-Won Lee, Byung-Joon Moon, Jae-Surk Hong
  • Patent number: 8261619
    Abstract: A time-to-digital converting circuit and a pressure sensing device using the same are provided. The circuit includes: a delay time-varying unit generating a reference signal having a fixed delay time, and a sensing signal having a variable delay time in response to an impedance of an externally applied signal; and a delay time calculation and data generation unit calculating a delay time difference between the reference signal and the sensing signal, and generating digital data having a value corresponding to the calculated delay time difference. Accordingly, the digital data are generated using the delay time varied in response to the externally applied signal, so that the size of the time-to-digital circuit is significantly reduced. In addition, an affect due to external noises is minimized.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: September 11, 2012
    Assignee: Atlab Inc.
    Inventors: Young-Ho Shin, Sang-Jin Lee, Bang-Won Lee
  • Publication number: 20120200530
    Abstract: Provided are an input device and a touch position detecting method thereof The input device includes a touch panel configured to generate a plurality of different measurement values depending on touch positions and output the plurality of measurement values, a clustering part configured to receive the measurement values, and output clustered measurement values including at least one cluster from the plurality of measurement values using a threshold value, and a center point calculating part configured to receive the clustered measurement values, and calculate coordinates of each cluster using a weighted average to output the coordinates.
    Type: Application
    Filed: October 14, 2010
    Publication date: August 9, 2012
    Applicant: ATLAB INC.
    Inventors: Xiaoling Wu, Bang-Won Lee, Se-Eun Jang, Chul-Yong Joung
  • Publication number: 20120194476
    Abstract: Provided are a touch panel capable of detecting a multi-touch and a multi-touch detecting method thereof. Since the touch panel and the multi-touch detecting method thereof can measure and store each resistance of a plurality of first and second touch pads varied depending on the touch position of a contact object and capacitance of the contact object using a variation in detection time to determine an actual touch position of the contact object, it is possible to determine the actual touch position even when a ghost pattern occurs.
    Type: Application
    Filed: July 9, 2010
    Publication date: August 2, 2012
    Applicant: ATLAB INC.
    Inventors: Bang-Won Lee, Se-Eun Jang, Jae-Surk Hong, Xiaoling Wu
  • Publication number: 20120146944
    Abstract: Provided are an input device and a touch position detecting method thereof.
    Type: Application
    Filed: August 17, 2010
    Publication date: June 14, 2012
    Applicant: ATLAB INC.
    Inventors: Bang-Won Lee, Se-Eun Jang, Jae-Surk Hong, Xiaoling Wu
  • Patent number: 8179369
    Abstract: Provided are an optical navigation device and a method for compensating for an offset in the optical navigation device. The optical navigation device includes: an image input unit for emitting light, receiving light reflected from a working surface to generate an analog image signal, converting the analog image signal into a digital image signal, and outputting the digital image signal; a delta image generator for generating a cumulative average of digital image signals of respective pixels and subtracting the cumulative average from the digital image signals in the respective pixels to generate a delta image signal; and a motion value calculator for calculating a motion value using the delta image signal.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: May 15, 2012
    Assignee: Atlab Inc.
    Inventors: Jong-Taek Kwak, Bang-Won Lee, Young-Ho Shin
  • Patent number: 8169415
    Abstract: Provided is a touch sensor device including: at least one terminal connected to at least one contact pad; at least one common terminal; at least one light emitter connected between the common terminal and the terminal; and a touch sensor and light-emission controller unit connected to the common terminal and the terminal, and when a touch is sensed by the contact pad, controlling a corresponding light emitter to emit light.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: May 1, 2012
    Assignee: Atlab Inc.
    Inventors: Young-Ho Shin, Bang-Won Lee, Du-Su Shin
  • Patent number: 8126211
    Abstract: A pointing device is provided. A sensor generates a motion detection signal by sensing motion. A calculator receives the motion detection signal, calculates a motion value based on the motion detection signal, calculates a conversion motion value base on an angle of the motion value, and outputs the conversion motion value. An interface outputs the motion conversion value inputted from the calculator. By limiting a motion angle, the pointing device can provide a positioning operation suitable for a motion intended by a user. The user can optionally use a motion control method in all directions according to need.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 28, 2012
    Assignee: ATLab Inc.
    Inventors: Bang-Won Lee, Woo-Seok Lee, Jong-Taek Kwak, Wan-Gyo Jeong
  • Patent number: 8053687
    Abstract: Provided are a semiconductor device and a touch sensor device. The semiconductor device includes a die including a sense signal generator for sensing a touch signal to generate a sense signal; a conductive die-attach pad attached to the die to generate the touch signal; and a package for packaging the die and the die-attach pad, wherein the die-attach pad generates the touch signal depending on whether a touch object comes into contact with the package. The touch sensor device includes a plurality of semiconductor devices connected in a daisy-chain communication mode, wherein each of the semiconductor devices includes a die including a sense signal generator for sensing a touch signal to generate a sense signal; a conductive die-attach pad attached to the die to generate the touch signal; and a package for packaging the die and the die-attach pad, wherein the die-attach pad generates the touch signal depending on whether a touch object is brought into contact with the package.
    Type: Grant
    Filed: May 28, 2007
    Date of Patent: November 8, 2011
    Assignee: Atlab Inc.
    Inventors: Duck-Young Jung, Jin-Woo Chung, Bang-Won Lee
  • Patent number: 8044936
    Abstract: Provided is an optical navigation device and a method of operating the same.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: October 25, 2011
    Assignee: Atlab Inc.
    Inventors: Jong-Taek Kwak, Bang-Won Lee, Young-Ho Shin, Woo-Seok Lee
  • Patent number: 8026900
    Abstract: An optical pointing device and a control method thereof are provided. The optical pointing device includes: an illumination unit for illuminating light on a working surface, and generating light in a predetermined code in response to a code signal; a control unit for detecting an image on the working surface to calculate a movement value, outputting movement information in response to an input signal inputted from the outside and the calculated movement value, intermittently outputting a code generation signal, and turning off the illumination unit when the optical pointing device is separated from the working surface in response to a determination signal; and a determination unit for outputting the code signal in response to the code generation signal, detecting light in the predetermined code to thus determine whether or not the optical pointing device is separated from the working surface, and outputting the determination signal depending on the determination result.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: September 27, 2011
    Assignee: Atlab Inc.
    Inventors: Chul-Yong Joung, Duck-Young Jung, Young-Ho Shin, Bang-Won Lee
  • Publication number: 20110227823
    Abstract: Provided are a puck-type pointing device, a pointing system including the same, and a pointing method thereof. The puck-type pointing device includes a movement detection unit detecting information regarding touch and movement of a puck by a touch object and outputting a movement detection signal, a first signal processing unit receiving the movement detection signal, removing noise, and outputting a first puck movement signal after a first period of time, a second signal processing unit receiving the movement detection signal, removing noise, and outputting a second puck movement signal after a second period of time which is shorter than the first period of time, and a puck movement signal transmitting unit transmitting or cutting off the first puck movement signal according to the movement information in response to the second puck movement signal.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 22, 2011
    Applicant: ATLAB INC.
    Inventors: Yong-Hwan Kim, Jin-Woo Chung, Bang-Won Lee
  • Patent number: 8013287
    Abstract: An optical pointing device includes: an image obtaining part for continuously obtaining an image on a work surface as a sample image; a movement value calculator for comparing the sample image with the previously obtained image to calculate and output a movement value; a button selection signal generator for outputting a button selection signal corresponding to a specific reference pattern, when the sample image is the same as the specific reference pattern of a plurality of reference patterns; and a controller for providing the button selection signal and the movement value to a computing device when the button selection signal is transmitted from the button selection signal generator, and providing the movement value only to the computing device when the button selection signal is not transmitted from the button selection signal generator.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: September 6, 2011
    Assignee: Atlab Inc.
    Inventors: Chul-Yong Joung, Bang-Won Lee, Young-Ho Shin
  • Publication number: 20110210934
    Abstract: Provided are a touch panel and an input device. The touch panel includes a plurality of first touch pad groups disposed in a first direction and having a plurality of first touch pads disposed in the first direction and extending in a second direction. Here, the first touch pads disposed at the same position in the respective first touch pad groups are connected in common with a corresponding one of a plurality of first channels, a first input signal is applied to one of the first touch pads of each first touch pad group, and the first touch pads receiving the first input signal are connected with the first channels, respectively.
    Type: Application
    Filed: April 20, 2009
    Publication date: September 1, 2011
    Applicant: ATLAB INC.
    Inventors: Bang-Won Lee, Chul-Yong Joung, Young-Ho Shin, Sang-Jin Lee
  • Publication number: 20110199327
    Abstract: A touch sensor device is provided. The touch sensor device includes a touch panel including a plurality of touch mark-keys indicating a position touched by a touch object, a plurality of first touch pads disposed at positions corresponding to the plurality of touch mark-keys of the touch panel and generating touch information of the touch object as a first electrical signal, a plurality of second touch pads disposed between the plurality of first touch pads and generating touch information of a conductive material on the touch object as a second electrical signal, and a touch sensing unit receiving the first electrical signal, outputting a plurality of sensing signals to allow an electronic device to perform predetermined operations corresponding to the touched touch mark-keys, and determining whether the touch of the touch object is a normal one using the first and second electrical signals.
    Type: Application
    Filed: March 25, 2009
    Publication date: August 18, 2011
    Applicant: ATLAB INC.
    Inventors: Young-Ho Shin, Jei-Hyuk Lee, Bang-Won Lee, Chul-Yong Joung, Sang-Jin Lee, Jae-Surk Hong, Ju-Min Lee, Duck-Young Jung
  • Patent number: 7995030
    Abstract: An apparatus and method for searching and displaying data are provided.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: August 9, 2011
    Assignee: Atlab Inc.
    Inventors: Chul-Yong Joung, Bang-Won Lee
  • Publication number: 20110175626
    Abstract: A portable device with a proximity sensor is provided. The portable device with a proximity sensor of the present invention includes a shielding plate for shielding impedance applied in a direction opposite to the direction that the proximity sensor detects the proximity such that the proximity sensor is not affected by a change in the surrounding environment and can detect the proximity at the same sensitivity at all times. Moreover, when the portable device is placed upside down on a conductive surface that causes low impedance, a proximity sensor placed adjacent to the conductive surface is deactivated to prevent malfunction.
    Type: Application
    Filed: March 26, 2009
    Publication date: July 21, 2011
    Applicant: ATLAB INC.
    Inventors: Bang-Won Lee, Chul-Yong Joung, Sang-Jin Lee, Yong-Hwan Kim, Jin-Woo Chung, Jae-Surk Hong, Duck-Young Jung, Young-Ho Shin