Patents by Inventor Ju-Hwan Yi

Ju-Hwan Yi 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: 8588281
    Abstract: A transceiver comprises a transmitter that converts a plurality of data components into serial data in response to a first clock signal and transmits the serial data, and a receiver that receives the serial data and converts the serial data into the plurality of data components in response to a second clock signal generated from the serial data. The transmitter adds at least one dummy bit to the serial data at predetermined intervals. The at least one dummy bit includes information regarding a data type of the plurality of data components.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: November 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woon-taek Oh, Jae-youl Lee, Jin-ho Kim, Tae-jin Kim, Ju-hwan Yi, Jong-shin Shin
  • Publication number: 20130287100
    Abstract: A mechanism for facilitating cost-efficient and low-latency video stream encoding for limited channel bandwidth is described. In one embodiment, an apparatus includes a source device having an encoding logic. The encoding logic may include a first logic to receive a video stream having a plurality of video frames. The video stream is received frame-by-frame. The encoding logic may further include a second logic to determine an input data rate relating to a first current video frame of the plurality of video frames received at the encoding mechanism, and a third logic to generate one or more zero-delta frames based on the input data rate, and allocate the one or more zero-delta frames to one or more first video frames of the plurality of video frames subsequent to the first current video frame.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Inventors: WOOSEUNG YANG, JU HWAN YI, YOUNG IL KIM, HOON CHOI
  • Publication number: 20120287344
    Abstract: Embodiments of the invention describe a multimedia stream switch capable of multiplexing the audio and the video data of a multimedia stream separately. The multiplexing features of embodiments of the invention enable a multimedia stream switch to control each multimedia data type separately instead of multiplexing the whole streams (i.e., multiplexing sets of audio/video data together). Furthermore, prior art multimedia stream switches need to regenerate audio clocks by using phase locked loop (PLL) circuitry which incurs manufacturing and development costs. Embodiments of the invention provide the mixing of audio and video data from different sources without the need for PLL circuitry.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Inventors: Hoon Choi, Daekyeung Kim, Ju Hwan Yi, Wooseung Yang, Young Il Kim
  • Publication number: 20120257699
    Abstract: Embodiments of the invention are generally directed to adjustment of clock signals regenerated from a data stream. An embodiment of a method includes receiving a data stream from a transmitting device via a communication link, the data stream including stream data, a link clock signal, and timestamps to indicate a relationship between the link clock signal and a stream clock signal. The method further includes adjusting the stream clock based at least in part on one or more measurements related to the data stream, the one or more measurements including a count of a number of pulses of the stream clock during a period of time, or a measurement of a number of data elements from the data stream stored in a buffer at a certain point in time.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Applicant: SILICON IMAGE, INC.
    Inventors: Hoon Choi, Daekyeung Kim, Ju Hwan Yi, Young Don Bae
  • Patent number: 8275085
    Abstract: An apparatus for recovering data and a method thereof are provided. The apparatus includes a reference clock generator which generates a reference clock, and a data recovering unit which detects an edge of received data and recovers the data using a time difference between a reference point of the reference clock and the detected edge.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ju-hwan Yi
  • Publication number: 20120147271
    Abstract: Embodiments of the invention are generally directed to a multimedia I/O system architecture for advanced digital television. An embodiment of a multimedia system includes an I/O (input/output) control chip, the I/O control chip including one or more audio/video sub-processing engines for the processing of one or more data streams; a processing core chip for the processing of data, including audio/video data received from the I/O control chip; and one or more shared I/O channels for the transfer of data between the I/O control chip and the processing core chip.
    Type: Application
    Filed: November 22, 2011
    Publication date: June 14, 2012
    Applicant: SILICON IMAGE, INC.
    Inventors: Hoon Choi, Daekyeung Kim, Ju Hwan Yi, Wooseung Yang, Young Il Kim, Alex Chervet, Timothy Vehling
  • Patent number: 8054102
    Abstract: An interface device includes a differential signal transmitter, a differential signal receiver, a first coupling capacitor, a second coupling capacitor, a direct current (DC) signal transmitter, and a DC signal receiver. The differential signal transmitter transmits a differential signal to the differential signal receiver via a differential signal line including a first signal line and a second signal line. The first coupling capacitor is communicatively coupled to the first signal line and to the differential signal transmitter. The second coupling capacitor is communicatively coupled to the first signal line and to the differential signal receiver. The DC signal transmitter transmits a DC signal via the first signal line. The DC signal receiver receives the DC signal via the first signal line.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ju-Hwan Yi
  • Publication number: 20110194590
    Abstract: A transceiver comprises a transmitter that converts a plurality of data components into serial data in response to a first clock signal and transmits the serial data, and a receiver that receives the serial data and converts the serial data into the plurality of data components in response to a second clock signal generated from the serial data. The transmitter adds at least one dummy bit to the serial data at predetermined intervals. The at least one dummy bit includes information regarding a data type of the plurality of data components.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woon-taek OH, Jae-youl LEE, Jin-ho KIM, Tae-jin KIM, Ju-hwan YI, Jong-shin SHIN
  • Publication number: 20100327910
    Abstract: An interface device includes a differential signal transmitter, a differential signal receiver, a first coupling capacitor, a second coupling capacitor, a direct current (DC) signal transmitter, and a DC signal receiver. The differential signal transmitter transmits a differential signal to the differential signal receiver via a differential signal line including a first signal line and a second signal line. The first coupling capacitor is communicatively coupled to the first signal line and to the differential signal transmitter. The second coupling capacitor is communicatively coupled to the first signal line and to the differential signal receiver. The DC signal transmitter transmits a DC signal via the first signal line. The DC signal receiver receives the DC signal via the first signal line.
    Type: Application
    Filed: April 7, 2010
    Publication date: December 30, 2010
    Inventor: Ju-Hwan Yi
  • Publication number: 20090304389
    Abstract: Semiconductor apparatuses having optical connections between a memory controller and a memory module are provided. A semiconductor apparatus includes a memory controller, at least one socket configured to receive a memory module, and a first optical-electrical module. A second optical-electrical module is mounted in the socket and optically coupled to the first optical-electrical module via at least one optical channel.
    Type: Application
    Filed: June 5, 2009
    Publication date: December 10, 2009
    Inventors: In-sung Joe, Kyoung-ho Ha, Ju-hwan Yi, Yoon-dong Park
  • Publication number: 20090135975
    Abstract: An apparatus for recovering data and a method thereof are provided. The apparatus includes a reference clock generator which generates a reference clock, and a data recovering unit which detects an edge of received data and recovers the data using a time difference between a reference point of the reference clock and the detected edge.
    Type: Application
    Filed: March 20, 2008
    Publication date: May 28, 2009
    Inventor: Ju-hwan Yi
  • Publication number: 20040095927
    Abstract: A system, method and article of manufacture are provided for updating a switching table in a switch fabric. In general, one or more status packets are received by a switch fabric component without handshaking between the transmitting source(s) and the receiving switch fabric component. Each status packet includes information relating to a status of an output port. A switching table is then updated based on the status information of the received status packet.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 20, 2004
    Inventors: You-Sung Chang, Ju-Hwan Yi, Seung-Wang Lee, Moo-Kyung Kang
  • Patent number: 6731631
    Abstract: A system, method and article of manufacture are provided for updating a switching table in a switch fabric. In general, one or more status packets are received by a switch fabric component without handshaking between the transmitting source(s) and the receiving switch fabric component. Each status packet includes information relating to a status of an output port. A switching table is then updated based on the status information of the received status packet.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: May 4, 2004
    Assignee: Paion Company, Limited
    Inventors: You-Sung Chang, Ju-Hwan Yi, Seung-Wang Lee, Moo-Kyung Kang