Patents by Inventor Yong-Ho You

Yong-Ho You 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: 20210120143
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a print engine to be used to perform an image forming job, a motor to start the print engine, a driving circuit to supply a power to the motor and to include a sensor to sense a size of current of the power supplied to the motor during an operation to perform the image forming job, and a processor to detect an occurrence of jam based on a size of current sensed by the sensor in a first time interval while the motor is driven and a size of current sensed by the sensor after a determined time from the first time interval.
    Type: Application
    Filed: July 5, 2019
    Publication date: April 22, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Minkeun SONG, Kiho PARK, Yong-Ho YOU, Hyoungil KIM
  • Patent number: 10582033
    Abstract: A method of providing information of a mobile communication terminal, and a mobile communication terminal for performing the method, are provided. The method includes determining whether a search command event has been generated during a call with a counterpart terminal, converting a voice signal received from a microphone into a text when the generation of search command event is determined to have been generated, identifying information matching the text in a memory, and sending the information to the counterpart terminal.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 3, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Ho You
  • Patent number: 10171017
    Abstract: An image forming apparatus may include an engine portion used to perform an image forming job, a step motor configured to start the engine portion, a driver including a resistor that measures current that flows to a coil of the step motor and is configured to provide a predetermined constant current to the step motor, and a drive controller configured to measure a load level of the step motor based on a voltage value of the resistor and to control the driver to provide the constant current that corresponds to the measured load level.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: January 1, 2019
    Assignee: HP PRINTING KOREA CO., LTD.
    Inventors: Yong-ho You, Hak-young Kim, Ji-young Byun, Sang-hyuk Jung, Ho-bin Hwang
  • Publication number: 20180212540
    Abstract: An image forming apparatus is provided. The image forming apparatus includes an image former configured to perform an image formation; a brushless DC (BLDC) motor configured to start the image former; and a motor controller configured to receive a plurality of driving information from the BLDC motor and to perform a feedback control for the BLDC motor based on at least one of the plurality of received driving information, wherein the motor controller confirms a plurality of error items for the BLDC motor based on the plurality of received driving information.
    Type: Application
    Filed: July 26, 2017
    Publication date: July 26, 2018
    Applicant: S-PRINTING SOLUTION CO., LTD.
    Inventors: Young-jun SHIM, Yong-ho You
  • Patent number: 9954468
    Abstract: An image forming apparatus includes an engine unit to perform an image forming job; an engine control unit to control the operation of the engine unit; a brushless direct current (BLDC) motor to drive the engine unit; a sensor unit to sense electric angle information and driving velocity information of the BLDC motor; a communication interface to receive a digital control command with respect to the BLDC motor from the engine control unit; a driving signal unit to generate a driving signal to control the BLDC motor; and a digital control unit to control the operation of the driving signal unit in a digital phase locked loop (PLL) manner for feedback controls the BLDC motor, based on the received digital control command, the detected electric angle information and the driving velocity information and a digital gain value as a control factor with respect to the BLDC motor.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: April 24, 2018
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventors: Hyoung-il Kim, Yong-ho You, Seong-ho Shin, Young Jung Yun, Tae-young Kim, Geon-hoon Kim, Ho-bin Hwang, Ji-young Byun
  • Patent number: 9503002
    Abstract: An image forming apparatus includes an engine portion configured to perform image forming, a direct current (DC) motor configured to mechanically operate the engine portion, a driver including a resistor to measure current that flows to the DC motor according to the measured current and configured to provide a predetermined voltage to the DC motor, and a drive controller configured to measure a driving speed of the DC motor based on a voltage value of the resistor and to control the driver to provide a voltage that corresponds to the measured driving speed to the driver.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 22, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hak-young Kim, Hyoung-il Kim, Yong-ho You
  • Publication number: 20160161897
    Abstract: Provided is an image forming apparatus including: a feeding unit configured to feed a recording medium; an image forming unit configured to form an image on the recording medium; a fuser configured to fuse the image formed on the recording medium; a discharging unit configured to discharge the recording medium; a motor configured to drive at least one of the feeding unit, the image forming unit, the fuser, and the discharging unit, and comprise a rotor including at least one pair of permanent magnets and a Hall sensor measuring a position of the permanent magnets; and a controller configured to drive the motor based on a signal received from the Hall sensor.
    Type: Application
    Filed: September 28, 2015
    Publication date: June 9, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyoung-il KIM, Young-jun SHIM, Yong-ho YOU, Young-jung YUN
  • Patent number: 9225276
    Abstract: An image forming apparatus, a control method for the same, and a motor state detector are provided. An aspect is to detect out-of-step of a motor using only an electric circuit configuration without additional mechanical devices, such as an encoder, a light-emitting device, and a light-receiving device, and to predict and prevent out-of-step of the motor. To this end, the image forming apparatus includes a motor state detector that acquires a current detection signal by detecting phase current of a motor and that generates an output signal in which a duty ratio in a current chopping section of the current detection signal is involved, and a controller that judges a normal state, out-of-step entry, and an out-of-step state of the motor based on the output signal of the motor state detector.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yong Ho You
  • Patent number: 9071621
    Abstract: A method and a system of managing information security for a mobile device in a restricted area based on location information regarding the mobile device are provided. The method includes receiving, by the mobile device, a request for the execution of an application program in a restricted area from a server managing the restricted area, executing, by the mobile device, the application program requested for execution when the program was set to be executable according to a security policy set to the restricted area, encrypting, by the mobile device, a file, created according to the execution of the application program, based on location information regarding the mobile device, and storing the encrypted file.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: June 30, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung Suk Kong, Yong Ho You
  • Publication number: 20150097503
    Abstract: An image forming apparatus includes an engine portion configured to perform image forming, a direct current (DC) motor configured to mechanically operate the engine portion, a driver including a resistor to measure current that flows to the DC motor according to the measured current and configured to provide a predetermined voltage to the DC motor, and a drive controller configured to measure a driving speed of the DC motor based on a voltage value of the resistor and to control the driver to provide a voltage that corresponds to the measured driving speed to the driver.
    Type: Application
    Filed: April 4, 2014
    Publication date: April 9, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hak-young KIM, Hyoung-il KIM, Yong-ho YOU
  • Publication number: 20140333250
    Abstract: An image forming apparatus may include an engine portion used to perform an image forming job, a step motor configured to start the engine portion, a driver including a resistor that measures current that flows to a coil of the step motor and is configured to provide a predetermined constant current to the step motor, and a drive controller configured to measure a load level of the step motor based on a voltage value of the resistor and to control the driver to provide the constant current that corresponds to the measured load level.
    Type: Application
    Filed: February 11, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Yong-ho YOU, Hak-young KIM, Ji-young BYUN, Sang-hyuk JUNG, Ho-bin HWANG
  • Patent number: 8836488
    Abstract: An alarm turning off method and a mobile device adapted to the method are provided. The method includes reproducing a preset alarm audio sound and outputting a preset beat at a preset alarm time, determining whether the mobile device receives an input beat, when the mobile device has received the input beat, muting the reproduced alarm audio sound, determining whether the preset beat is identical to the input beat in a state where the alarm audio sound is muted, and turning off the alarm when the number of occurrences where the preset beat matches the input beat is a preset number in a state where the alarm audio sound is muted.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: September 16, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong Ho You
  • Publication number: 20140139173
    Abstract: An image forming apparatus, a control method for the same, and a motor state detector are provided. An aspect is to detect out-of-step of a motor using only an electric circuit configuration without additional mechanical devices, such as an encoder, a light-emitting device, and a light-receiving device, and to predict and prevent out-of-step of the motor. To this end, the image forming apparatus includes a motor state detector that acquires a current detection signal by detecting phase current of a motor and that generates an output signal in which a duty ratio in a current chopping section of the current detection signal is involved, and a controller that judges a normal state, out-of-step entry, and an out-of-step state of the motor based on the output signal of the motor state detector.
    Type: Application
    Filed: October 2, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Yong Ho YOU
  • Publication number: 20140070740
    Abstract: An image forming apparatus includes an engine unit to perform an image forming job; an engine control unit to control the operation of the engine unit; a brushless direct current (BLDC) motor to drive the engine unit; a sensor unit to sense electric angle information and driving velocity information of the BLDC motor; a communication interface to receive a digital control command with respect to the BLDC motor from the engine control unit; a driving signal unit to generate a driving signal to control the BLDC motor; and a digital control unit to control the operation of the driving signal unit in a digital phase locked loop (PLL) manner for feedback controls the BLDC motor, based on the received digital control command, the detected electric angle information and the driving velocity information and a digital gain value as a control factor with respect to the BLDC motor.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyoung-il KIM, Yong-ho YOU, Seong-ho SHIN, Young Jung YUN, Yae-young KIM, Gwon-hoon KIM, Ho-bin HWANG, Ji-young BYUN
  • Patent number: 8598830
    Abstract: An image forming apparatus includes an engine unit used for performing an image forming job, an engine control unit which controls the operation of the engine unit, a brushless direct current (BLDC) motor which drives the engine unit, a sensor unit which senses the driving information of the BLDC motor, a communication interface unit which receives a digital control command with respect to the BLDC motor from the engine control unit, a driving signal unit which generates a driving signal to control the BLDC motor, and a digital control unit which controls the operation of the driving signal unit in a digital PLL manner, based on the received digital control command, the detected driving information and a digital gain value as a control factor with respect to the BLDC motor.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung-il Kim, Yong-ho You, Seong-ho Shin, Young-Jung Yun, Yae-young Kim, Gwon-hoon Kim, Ho-bin Hwang, Ji-young Byun
  • Patent number: 8521072
    Abstract: An image forming apparatus and a color registration method thereof. The color registration method includes checking a change in a status of an image forming apparatus, selecting color registration patterns having a different length according to the status change, and performing color registration by printing the color registration patterns having the different length onto a transfer belt.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: August 27, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Ho You, Hae Seog Jo, Myong Hun Cho
  • Publication number: 20130013932
    Abstract: A method and a system of managing information security for a mobile device in a restricted area based on location information regarding the mobile device are provided. The method includes receiving, by the mobile device, a request for the execution of an application program in a restricted area from a server managing the restricted area, executing, by the mobile device, the application program requested for execution when the program was set to be executable according to a security policy set to the restricted area, encrypting, by the mobile device, a file, created according to the execution of the application program, based on location information regarding the mobile device, and storing the encrypted file.
    Type: Application
    Filed: May 24, 2012
    Publication date: January 10, 2013
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Hyoung Suk KONG, Yong Ho YOU
  • Publication number: 20120316873
    Abstract: A method of providing information of a mobile communication terminal, and a mobile communication terminal for performing the method, are provided. The method includes determining whether a search command event has been generated during a call with a counterpart terminal, converting a voice signal received from a microphone into a text when the generation of search command event is determined to have been generated, identifying information matching the text in a memory, and sending the information to the counterpart terminal.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventor: Yong Ho YOU
  • Patent number: 8238805
    Abstract: An image forming apparatus and an auto color registration method thereof. The image forming apparatus performs an auto color registration (ACR) operation by excluding or minimizing the influence caused by variation in speed of a drive unit driving a transfer member. The image forming apparatus includes a controller, which prints a test pattern of each color according to a rotation period of the drive unit, and controls an operation for outputting an image in which each color registration error is corrected on the basis of the test pattern, such that a reliability of the ACR operation is increased and a quality of an image output from the image forming apparatus is also increased.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Pyo Kang, Hae Seog Jo, Yong Ho You, Jin Ju Park, Sang Woon Lee
  • Publication number: 20120176230
    Abstract: An alarm turning off method and a mobile device adapted to the method are provided. The method includes reproducing a preset alarm audio sound and outputting a preset beat at a preset alarm time, determining whether the mobile device receives an input beat, when the mobile device has received the input beat, muting the reproduced alarm audio sound, determining whether the preset beat is identical to the input beat in a state where the alarm audio sound is muted, and turning off the alarm when the number of occurrences where the preset beat matches the input beat is a preset number in a state where the alarm audio sound is muted.
    Type: Application
    Filed: November 3, 2011
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventor: Yong Ho YOU