Patents by Inventor Yong Joo Song

Yong Joo Song 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: 20240094597
    Abstract: A lens driving device according to an embodiment includes a first frame; a first moving part disposed in an inner space of the first frame and relatively movable with respect to the first frame; a lens module disposed inside the first moving part; and a guide member disposed between the first frame and the first moving part, wherein the guide member is disposed between an inner surface of the first frame and an outer surface of the first moving part, and the first moving part is guided by the guide member and arranged to be rotatable based on each of a first axis and a second axis.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 21, 2024
    Inventors: Yun Sang SONG, Sang Hun AN, Yong joo LEE
  • Publication number: 20200162370
    Abstract: A method for operating a service function chain in a networking function virtualization device includes: a step a of generating at least one service function chain providing at least one virtual network function, and defining traffic to which the service function chain is applied; a step b of setting an NIC to allocate SR-IOV for the start and end of the service function chain applied to first traffic; and a step c of setting a software switch to apply a flow rule for leading the first traffic to provide the intermediate step of the service function chain to the first traffic.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 21, 2020
    Inventor: Yong Joo SONG
  • Patent number: 10467973
    Abstract: A buffer amplifier circuit includes a buffer amplifier including a first differential amplifier having a first active load and a second differential amplifier having a second active load and a feedback circuit configured to feed an output signal of an output terminal of the buffer amplifier back to one of the first and second active loads using differential switch signals and an input signal of the buffer amplifier to enhance a slew rate of the output signal.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju Hyun Ko, Yong Joo Song, Jun Ho Song
  • Patent number: 10469074
    Abstract: A power on/off reset circuit includes a driving circuit, a hysteresis control circuit and a buffering circuit. The driving circuit detects a first level of a power supply voltage during a power-on duration of the power supply voltage, detects a second level of the power supply voltage during a power-off duration of the power supply voltage, and generates a driving signal that is transitioned based on the first level and the second level. The hysteresis control circuit is connected to an output terminal of the driving circuit, is activated or deactivated based on the power supply voltage without a control signal, is activated during one of the power-on duration and the power-off duration, and is deactivated during the other of the power-on duration and the power-off duration. The buffering circuit is connected to the output terminal of the driving circuit, and generates a reset signal based on the driving signal.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: November 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Woo Kim, Yong-Joo Song
  • Publication number: 20190132345
    Abstract: A network function virtualization (NFV) apparatus according to the present disclosure may include: a virtual machine which is configured to perform a first network function, generate a flow rule according to network configuration information received from a user or a result of performing the first network function, and transmit the flow rule to a software switch; and the software switch which is configured to perform a second network function, and process a packet according to the flow rule. According to the present disclosure, separate a virtual network function may be separated into a data (packet) processing function and a control function, whereby a fast processing speed provided by a software switch and virtual machine's processing capability with high complexity may be maximally utilized.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 2, 2019
    Inventors: Eun Ho CHA, Tae Kyung LEE, Yong Joo SONG
  • Publication number: 20180337672
    Abstract: A power on/off reset circuit includes a driving circuit, a hysteresis control circuit and a buffering circuit. The driving circuit detects a first level of a power supply voltage during a power-on duration of the power supply voltage, detects a second level of the power supply voltage during a power-off duration of the power supply voltage, and generates a driving signal that is transitioned based on the first level and the second level. The hysteresis control circuit is connected to an output terminal of the driving circuit, is activated or deactivated based on the power supply voltage without a control signal, is activated during one of the power-on duration and the power-off duration, and is deactivated during the other of the power-on duration and the power-off duration. The buffering circuit is connected to the output terminal of the driving circuit, and generates a reset signal based on the driving signal.
    Type: Application
    Filed: January 15, 2018
    Publication date: November 22, 2018
    Inventors: Jin-Woo Kim, Yong-Joo Song
  • Patent number: 9979363
    Abstract: A source driver includes a buffer device including a plurality of buffers corresponding to a plurality of data lines, each of the plurality of buffers respectively including an amplifier configured to amplify an input signal and an output driver configured to output a driving signal to a corresponding data line among the plurality of data lines; and a switch device including a charge sharing switch configured to electrically connect the plurality of data lines to one another during a charge sharing operation, each of the amplifiers including a first current mirror having a reference current path including a first node and an output current path including a second node, and the first node of the reference current path and the second node of the output current path are electrically connected to each other during the charge sharing operation.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Hyun Ko, Yong-joo Song, Jun-ho Song, Jin-chul Choi, Beop-hee Kim
  • Publication number: 20170032740
    Abstract: A source driver includes a buffer device including a plurality of buffers corresponding to a plurality of data lines, each of the plurality of buffers respectively including an amplifier configured to amplify an input signal and an output driver configured to output a driving signal to a corresponding data line among the plurality of data lines; and a switch device including a charge sharing switch configured to electrically connect the plurality of data lines to one another during a charge sharing operation, each of the amplifiers including a first current mirror having a reference current path including a first node and an output current path including a second node, and the first node of the reference current path and the second node of the output current path are electrically connected to each other during the charge sharing operation.
    Type: Application
    Filed: June 2, 2016
    Publication date: February 2, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Hyun KO, Yong-joo SONG, Jun-ho SONG, Jin-chul CHOI, Beop-hee KIM
  • Publication number: 20170032755
    Abstract: A buffer amplifier circuit includes a buffer amplifier including a first differential amplifier having a first active load and a second differential amplifier having a second active load and a feedback circuit configured to feed an output signal of an output terminal of the buffer amplifier back to one of the first and second active loads using differential switch signals and an input signal of the buffer amplifier to enhance a slew rate of the output signal.
    Type: Application
    Filed: July 11, 2016
    Publication date: February 2, 2017
    Inventors: Ju Hyun Ko, Yong Joo Song, Jun Ho Song
  • Patent number: 9521134
    Abstract: A control apparatus which manages a software defined network including a plurality of switches includes a security management module that authenticates at least one application program, and an application program management module that executes the authenticated application program among the at least one application program in a first process, and executes the application program whose authentication fails in a second process. The application program management module may be executed in the first process, and the first process may be different from the second process.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: December 13, 2016
    Assignee: ATTO RESEARCH CO., LTD.
    Inventors: Jae Woong Chung, Seung Won Shin, Yong Joo Song
  • Publication number: 20160337330
    Abstract: A control apparatus which manages a software defined network including a plurality of switches includes a security management module that authenticates at least one application program, and an application program management module that executes the authenticated application program among the at least one application program in a first process, and executes the application program whose authentication fails in a second process. The application program management module may be executed in the first process, and the first process may be different from the second process.
    Type: Application
    Filed: May 13, 2015
    Publication date: November 17, 2016
    Inventors: Jae Woong CHUNG, Seung Won SHIN, Yong Joo SONG
  • Publication number: 20040090834
    Abstract: The present invention relates to a base pad layout for reducing the parasitic base-collector capacitance and method of fabricating HBT using the same.
    Type: Application
    Filed: September 17, 2003
    Publication date: May 13, 2004
    Inventors: Kyoung Hoon Yang, Yong Joo Song