Patents by Inventor Chang-Min Han

Chang-Min Han 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: 10440206
    Abstract: A fax function diagnosis method and an apparatus for performing the method are provided. The fax function diagnosis method includes receiving a diagnosis request to diagnose a fax function of an image forming apparatus, diagnosing the fax function of the image forming apparatus by transmitting or receiving a test page, and performing an operation based on a result of the diagnosing.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: October 8, 2019
    Assignee: HP Printing Korea Co., Ltd.
    Inventors: Chang-min Han, In-soo Sung, Cheol-yon Won, Ho-sung Han
  • Patent number: 10249902
    Abstract: Disclosed herein are a secondary battery transfer apparatus for transferring a secondary battery in a secondary battery manufacturing process and a method for detecting a loading defect of a secondary battery in a carrier receiving the secondary battery. The secondary battery transfer apparatus includes a carrier having a receipt space to receive a secondary battery, a transfer unit transferring the carrier, a loading detection sensor sensing the secondary battery when the secondary battery inserted into the carrier reaches a designated height, and a controller receiving a result of sensing of the loading detection sensor and controlling operation of the transfer unit. The secondary battery transfer apparatus and the detection method detect whether or not a case of the secondary battery is damaged due to friction with the carrier and thus recognize a product defect in advance.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: April 2, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Seok Jin Kim, Min Su Kim, Tae Yoon Jung, Chang Min Han, Hyun Geun Jo, Gi Su Park
  • Patent number: 10051148
    Abstract: A cloud server is provided. The cloud server includes a transceiver configured to receive, from an electronic device, a fax transmission request and at least one processor configured to control the transceiver to determine a communication network among a plurality of communication networks for communication with an opponent image forming apparatus corresponding to the fax transmission request, when the opponent image forming apparatus is a pre-registered apparatus and transmit fax data corresponding to the fax transmission request to the opponent image forming apparatus using the determined communication network, when the opponent image forming apparatus is a pre-registered apparatus.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: August 14, 2018
    Assignee: S-Printing Solution Co., Ltd.
    Inventors: Chang-min Han, Jeong-jin Park
  • Publication number: 20180176394
    Abstract: A fax function diagnosis method and an apparatus for performing the method are provided. The fax function diagnosis method includes receiving a diagnosis request to diagnose a fax function of an image forming apparatus, diagnosing the fax function of the image forming apparatus by transmitting or receiving a test page, and performing an operation based on a result of the diagnosing.
    Type: Application
    Filed: May 30, 2017
    Publication date: June 21, 2018
    Inventors: Chang-min HAN, In-soo SUNG, Cheol-yon WON, Ho-sung HAN
  • Patent number: 9883077
    Abstract: An electronic apparatus includes a job processor to perform a job of the image forming apparatus, a storage unit to store apparatus use information on a user of the image forming apparatus and job performance of the job processor, a determination unit to determine whether the user is changed or not, and a controller to delete the apparatus use information on a previous user if it is determined that the user is changed.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 30, 2018
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventors: Chang-min Han, Hyung-ho Lee, Ki-hun Kim, Jin-ah Heo
  • Publication number: 20170163842
    Abstract: A cloud server is provided. The cloud server includes a transceiver configured to receive, from an electronic device, a fax transmission request and at least one processor configured to control the transceiver to determine a communication network among a plurality of communication networks for communication with an opponent image forming apparatus corresponding to the fax transmission request, when the opponent image forming apparatus is a pre-registered apparatus and transmit fax data corresponding to the fax transmission request to the opponent image forming apparatus using the determined communication network, when the opponent image forming apparatus is a pre-registered apparatus.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 8, 2017
    Inventors: Chang-min HAN, Jeong-jin PARK
  • Publication number: 20160204462
    Abstract: Disclosed herein are a secondary battery transfer apparatus for transferring a secondary battery in a secondary battery manufacturing process and a method for detecting a loading defect of a secondary battery in a carrier receiving the secondary battery. The secondary battery transfer apparatus includes a carrier having a receipt space to receive a secondary battery, a transfer unit transferring the carrier, a loading detection sensor sensing the secondary battery when the secondary battery inserted into the carrier reaches a designated height, and a controller receiving a result of sensing of the loading detection sensor and controlling operation of the transfer unit. The secondary battery transfer apparatus and the detection method detect whether or not a case of the secondary battery is damaged due to friction with the carrier and thus recognize a product defect in advance.
    Type: Application
    Filed: September 1, 2014
    Publication date: July 14, 2016
    Applicant: LG CHEM LTD.
    Inventors: Seok Jin KIM, Min Su KIM, Tae Yoon JUNG, Chang Min HAN, Hyun Geun JO, Gi Su PARK
  • Patent number: 9215348
    Abstract: A method of performing an operation in an image forming apparatus by using a workform which defines one or more workflows indicating one or more operations to be performed with respect to input data includes: receiving identification information of a user of the image forming apparatus; with respect to a workform selected by the user from among one or more workforms pre-existing in the image forming apparatus, determining whether there exists a workform which is redefined corresponding to the received identification information; and if it is determined that there exists the redefined workform, performing an operation according to the workform which is redefined corresponding to the identification information.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: December 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: So-yeong Kwon, Chang-min Han
  • Patent number: 9036216
    Abstract: A method of performing handshaking between fax machines on the basis of T.30 protocol includes transmitting information on a first data rate selected to transmit a fax document to a receiving-side fax machine, transmitting a plurality of frames including bit strings predefined to test data transmission/reception at the first data rate prior to transmitting the fax document to the receiving-side fax machine, and receiving a message informing success or failure of the test. The transmitting of the frames includes determining a time duration of the transmitting the frames based on at least one of a TCF flag value and the first data rate.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-sang Seo, Chang-min Han
  • Publication number: 20140118794
    Abstract: A method of performing handshaking between fax machines on the basis of T.30 protocol includes transmitting information on a first data rate selected to transmit a fax document to a receiving-side fax machine, transmitting a plurality of frames including bit strings predefined to test data transmission/reception at the first data rate prior to transmitting the fax document to the receiving-side fax machine, and receiving a message informing success or failure of the test. The transmitting of the frames includes determining a time duration of the transmitting the frames based on at least one of a TCF flag value and the first data rate.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Young-sang SEO, Chang-min HAN
  • Patent number: 8494131
    Abstract: The present invention relates to a data communication method and apparatus comprising a noise information memory for storing noise information to indicate a degree of noise on a current communication line and capable of performing communications in a plurality of communication modes. The method and apparatus further comprising a mode memory for storing the plurality of communication modes in response to the degree of noise, and a mode change control unit for reading current noise information from the noise information memory and selecting the communication mode corresponding to the current degree of noise from the mode memory, and changing the current communication mode into the selected communication mode. The present invention provides an apparatus and a method for highly reliable data communication with simplified construction.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Min Han
  • Publication number: 20130044352
    Abstract: An electronic apparatus includes a job processor to perform a job of the image forming apparatus, a storage unit to store apparatus use information on a user of the image forming apparatus and job performance of the job processor, a determination unit to determine whether the user is changed or not, and a controller to delete the apparatus use information on a previous user if it is determined that the user is changed.
    Type: Application
    Filed: June 27, 2012
    Publication date: February 21, 2013
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Chang-min HAN, Hyung-ho LEE, Ki-hun KIM, Jin-ah HEO
  • Patent number: 8164572
    Abstract: An image forming apparatus and method of displaying a multilingual keyboard uses an identifier of a language-specific entity, such as a country-code top-level domain of a domain name in an e-mail address to automatically output an input device configuration, such as a keyboard configuration, in accordance with stored keyboard table information corresponding to country identification information of a target recipient using the e-mail address of the target recipient, thereby increasing the convenience of use. The image forming apparatus receives an input email address of a target recipient, detects country identification information in the email address, searches stored keyboard information for that corresponding to the detected country identification information, and displays the keyboard in the language corresponding to the country identification information found in the searching of the stored country identification information.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang Min Han
  • Publication number: 20120081739
    Abstract: A method of performing an operation in an image forming apparatus by using a workform which defines one or more workflows indicating one or more operations to be performed with respect to input data includes: receiving identification information of a user of the image forming apparatus; with respect to a workform selected by the user from among one or more workforms pre-existing in the image forming apparatus, determining whether there exists a workform which is redefined corresponding to the received identification information; and if it is determined that there exists the redefined workform, performing an operation according to the workform which is redefined corresponding to the identification information.
    Type: Application
    Filed: August 18, 2011
    Publication date: April 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: So-yeong Kwon, Chang-min Han
  • Patent number: 8123986
    Abstract: A plasma display device and a method of manufacturing a plasma display panel (PDP) are provided. The method includes applying onto a substrate a black matrix paste for forming a black matrix and an electrode paste for forming an electrode; laminating a dielectric material on the substrate; and firing the black matrix paste, the electrode paste, and the dielectric material at the same time. Therefore, it is possible to simplify the manufacture of a PDP by firing electrodes, black matrices, and a dielectric material at the same time. In addition, it is possible to reduce the probability of the generation of air bubbles by appropriately reducing the amount of glass frit in a paste. Moreover, it is possible to enhance the efficiency of driving a PDP and the reliability of a plasma display device.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: February 28, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jung Sok Noh, Young Woo Seo, Chang Min Han
  • Publication number: 20110096920
    Abstract: The present invention relates to a data communication method and apparatus comprising a noise information memory for storing noise information to indicate a degree of noise on a current communication line and capable of performing communications in a plurality of communication modes. The method and apparatus further comprising a mode memory for storing the plurality of communication modes in response to the degree of noise, and a mode change control unit for reading current noise information from the noise information memory and selecting the communication mode corresponding to the current degree of noise from the mode memory, and changing the current communication mode into the selected communication mode. The present invention provides an apparatus and a method for highly reliable data communication with simplified construction.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Inventor: Chang-Min Han
  • Patent number: 7881445
    Abstract: The present invention relates to a data communication method and apparatus comprising a noise information memory for storing noise information to indicate a degree of noise on a current communication line and capable of performing communications in a plurality of communication modes. The method and apparatus further comprising a mode memory for storing the plurality of communication modes in response to the degree of noise, and a mode change control unit for reading current noise information from the noise information memory and selecting the communication mode corresponding to the current degree of noise from the mode memory, and changing the current communication mode into the selected communication mode. The present invention provides an apparatus and a method for highly reliable data communication with simplified construction.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-Min Han
  • Publication number: 20100142707
    Abstract: A data transceiving apparatus includes a data communicator to set up a communication connection with a counterpart apparatus using a setup message containing encryption information, and a data processor to encrypt data transmitted to the counterpart apparatus or decrypt encrypted data received from the counterpart apparatus using the encryption information.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 10, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang-min HAN, Seung-wook HONG
  • Publication number: 20090109469
    Abstract: A fax receiving mode switch method of an office machine connecting with at least one host device, via a network and communicating with an external fax machine, is provided with: requesting a response to the at least one host device; and switching a mode of the office machine based on whether there is any response from the at least one host device.
    Type: Application
    Filed: September 3, 2008
    Publication date: April 30, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chang-min HAN
  • Publication number: 20090066248
    Abstract: A plasma display device and a method of manufacturing a plasma display panel (PDP) are provided. The method includes applying onto a substrate a black matrix paste for forming a black matrix and an electrode paste for forming an electrode; laminating a dielectric material on the substrate; and firing the black matrix paste, the electrode paste, and the dielectric material at the same time. Therefore, it is possible to simplify the manufacture of a PDP by firing electrodes, black matrices, and a dielectric material at the same time. In addition, it is possible to reduce the probability of the generation of air bubbles by appropriately reducing the amount of glass frit in a paste. Moreover, it is possible to enhance the efficiency of driving a PDP and the reliability of a plasma display device.
    Type: Application
    Filed: June 26, 2007
    Publication date: March 12, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Jung Sok Noh, Young Woo Seo, Chang Min Han