Patents by Inventor Baegin Sung

Baegin Sung 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: 9871516
    Abstract: In one embodiment, an apparatus for transmitting a signal with an improved termination is disclosed. The apparatus includes a driver to generate a differential mode signal superimposed on a common mode signal at a differential driver output of the driver. The differential driver output includes a first driver output and a second driver output. The apparatus also includes a termination circuit coupled between the first driver output and the second driver output. The termination circuit includes a capacitor connected to a node. The termination circuit also includes a first resistor and a first inductive element coupled in series between the first driver output and the node. In addition, the termination circuit includes a second resistor and a second inductive element coupled in series between the second driver output and the node.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 16, 2018
    Assignee: Lattice Semiconductor Corporation
    Inventors: Youchul Jeong, Junwoo Lee, Inyeol Lee, Baegin Sung
  • Patent number: 9496651
    Abstract: In one embodiment, an HDMI connector includes a plurality of conductive paths. The plurality of conductive paths correspond to four channels, i.e., three differential data channels and one differential clock channel. Each channel includes three conductive paths, which correspond to a differential pair and a dedicated ground. Each conductive path has a contact on one end and a pin on the opposite end. The pins of the plurality of conductive paths are arranged to attach to corresponding surface mounting pads in at least two columns of contact points. For each channel, the pad for the dedicated ground is larger than the pads for the differential pair, thereby providing shielding between the differential pairs of different channels.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: November 15, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Youchul Jeong, Jaemin Kim, Baegin Sung
  • Patent number: 9490965
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 8, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Patent number: 9472873
    Abstract: Embodiments relate to a receptacle assembly for connecting to a plug of a connector. The receptacle includes a first contact on a first side of an insulating member. The first contact electrically connects to a first plug contact when the connector engages with the receptacle in a first orientation. The receptacle includes a second contact on a second side of the insulating member. The second contact electrically connects to the first plug contact when the connector engages with the receptacle in a second orientation. The second contact extends to a printed circuit board and is connected to the first contact via a first conductive bridge at a first location closer to the printed circuit board than the first plug contact. The first and second contacts are connected via a second conductive bridge at a second location closer to the first plug contact than the first conductive bridge.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 18, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Youchul Jeong, Jaemin Kim, Hoo Kim, Baegin Sung
  • Publication number: 20160261073
    Abstract: In one embodiment, an HDMI connector includes a plurality of conductive paths. The plurality of conductive paths correspond to four channels, i.e., three differential data channels and one differential clock channel. Each channel includes three conductive paths, which correspond to a differential pair and a dedicated ground. Each conductive path has a contact on one end and a pin on the opposite end. The pins of the plurality of conductive paths are arranged to attach to corresponding surface mounting pads in at least two columns of contact points. For each channel, the pad for the dedicated ground is larger than the pads for the differential pair, thereby providing shielding between the differential pairs of different channels.
    Type: Application
    Filed: March 3, 2015
    Publication date: September 8, 2016
    Inventors: Youchul Jeong, Jaemin Kim, Baegin Sung
  • Patent number: 9356402
    Abstract: In one embodiment, a source device and sink device communicate with one another via a multimedia link. The multimedia link includes a cable and a plug. The cable includes one or more data lines, power lines, ground lines or control bus lines. The plug includes a plurality of pins each connected to the one or more lines included in the cable. The plug also includes a ground plane and a power plane, wherein a ground pin of the plug connects the ground plane to the ground line of the cable of the multimedia link and a power pin of the plug connects the ground plane to the power line of the cable. In one example, the ground plane and power plane are placed within a threshold distance of one another, such that the power line connected to the power plane via the power pin behaves as a signal return path.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: May 31, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Baegin Sung, Chandlee B. Harrell, Gyudong Kim, Shrikant Ranade
  • Patent number: 9230505
    Abstract: Techniques and mechanisms for exchanging communications which each represent a respective combination of data and clock signaling. In an embodiment, encoder logic generates a first signal pair, including encoding a first differential data signal pair with a first clock signal of a differential clock signal pair. The encoder logic further generates a second signal pair, including encoding a second differential data signal pair with a second clock signal of the same differential clock signal pair. In another embodiment, decoder logic receives and decodes the first signal pair and the second signal pair, wherein the decoding generates the first differential data signal pair, the second differential data signal pair and a clock signal.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 5, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Daekyeung Kim, Daeyun Shim, Baegin Sung
  • Publication number: 20150358020
    Abstract: In one embodiment, an apparatus for transmitting a signal with an improved termination is disclosed. The apparatus includes a driver to generate a differential mode signal superimposed on a common mode signal at a differential driver output of the driver. The differential driver output includes a first driver output and a second driver output. The apparatus also includes a termination circuit coupled between the first driver output and the second driver output. The termination circuit includes a capacitor connected to a node. The termination circuit also includes a first resistor and a first inductive element coupled in series between the first driver output and the node. In addition, the termination circuit includes a second resistor and a second inductive element coupled in series between the second driver output and the node.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 10, 2015
    Inventors: Youchul Jeong, Junwoo Lee, Inyeol Lee, Baegin Sung
  • Publication number: 20150270946
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Publication number: 20150255933
    Abstract: In one embodiment, a source device and sink device communicate with one another via a multimedia link. The multimedia link includes a cable and a plug. The cable includes one or more data lines, power lines, ground lines or control bus lines. The plug includes a plurality of pins each connected to the one or more lines included in the cable. The plug also includes a ground plane and a power plane, wherein a ground pin of the plug connects the ground plane to the ground line of the cable of the multimedia link and a power pin of the plug connects the ground plane to the power line of the cable. In one example, the ground plane and power plane are placed within a threshold distance of one another, such that the power line connected to the power plane via the power pin behaves as a signal return path.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 10, 2015
    Inventors: Baegin Sung, Chandlee B. Harrell, Gyudong Kim, Shrikant Ranade
  • Patent number: 9071410
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: June 30, 2015
    Assignee: Silicon Image, Inc.
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Publication number: 20150117580
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Application
    Filed: January 7, 2015
    Publication date: April 30, 2015
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Patent number: 8958497
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Silicon Image, Inc.
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Publication number: 20140241457
    Abstract: Techniques and mechanisms for exchanging communications which each represent a respective combination of data and clock signaling. In an embodiment, encoder logic generates a first signal pair, including encoding a first differential data signal pair with a first clock signal of a differential clock signal pair. The encoder logic further generates a second signal pair, including encoding a second differential data signal pair with a second clock signal of the same differential clock signal pair. In another embodiment, decoder logic receives and decodes the first signal pair and the second signal pair, wherein the decoding generates the first differential data signal pair, the second differential data signal pair and a clock signal.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 28, 2014
    Applicant: Silicon Image, Inc.
    Inventors: Daekyeung Kim, Daeyun Shim, Baegin Sung
  • Publication number: 20130329828
    Abstract: Embodiments of the invention are generally directed to simultaneous transmission of clock and bidirectional data over a communication channel. An embodiment of a transmitting device includes a modulator to generate a modulated signal including a clock signal and a data signal, the clock signal being modulated by a first signal edge of the modulated signal and the data signal being modulated by a position of a second signal edge of the modulated signal; a driver to drive the modulated signal on a communication channel; an echo canceller to subtract reflected signals on the communication channel; and a data recovery module to recover a signal received on the communication channel, the received signal being encoded by Return-to-Zero (RZ) encoding, the signal being received simultaneously with driving the modulated signal on the communication channel.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Applicant: Silicon Image, Inc.
    Inventors: Inyeol Lee, Baegin Sung, Hanwoong Sohn, Shinje Tahk, Sun Woo Baek, Chandlee B. Harrell
  • Patent number: 8601173
    Abstract: Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including a connector for the second protocol, the port including multiple pins including a first pin and a second pin. The apparatus further includes a pull-up resistor coupled between the first pin and a voltage source, a pull-down resistor coupled between the second pin and ground, and a voltage detection element coupled with the second pin. The apparatus is to determine that a cable compatible with the first protocol is connected to the port if the voltage detection element detects a voltage above a first threshold.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 3, 2013
    Assignee: Silicon Image, Inc.
    Inventors: Baegin Sung, MyounHwan Kim, Gyudong Kim, Chandlee Harrell
  • Publication number: 20120003863
    Abstract: Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including a connector for the second protocol, the port including multiple pins including a first pin and a second pin. The apparatus further includes a pull-up resistor coupled between the first pin and a voltage source, a pull-down resistor coupled between the second pin and ground, and a voltage detection element coupled with the second pin. The apparatus is to determine that a cable compatible with the first protocol is connected to the port if the voltage detection element detects a voltage above a first threshold.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Inventors: Baegin Sung, MyounHwan Kim, Gyudong Kim, Chandlee Harrell
  • Patent number: 8090030
    Abstract: A method, apparatus and system are provided for generating and facilitating Mobile High-Definition Multimedia Interface. In one embodiment, an apparatus includes a transmitter configured to merge multiple channels of a high-definition interface into a single channel to generate a mobile high-definition interface, the mobile high-definition interface configured to facilitate carrying of high-definition media content in a mobile device. The apparatus further includes a receiver coupled with the transmitter, the receiver configured to receive the single channel, and to unmerge the single channel into the multiple channels.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: January 3, 2012
    Assignee: Silicon Image, Inc.
    Inventors: Gyudong Kim, Baegin Sung, Hoon Choi
  • Publication number: 20090178097
    Abstract: A method, apparatus and system are provided for generating and facilitating Mobile High-Definition Multimedia Interface. In one embodiment, an apparatus includes a transmitter configured to merge multiple channels of a high-definition interface into a single channel to generate a mobile high-definition interface, the mobile high-definition interface configured to facilitate carrying of high-definition media content in a mobile device. The apparatus further includes a receiver coupled with the transmitter, the receiver configured to receive the single channel, and to unmerge the single channel into the multiple channels.
    Type: Application
    Filed: January 4, 2008
    Publication date: July 9, 2009
    Inventors: Gyudong Kim, Baegin Sung, Hoon Choi
  • Patent number: 7500032
    Abstract: A cable including circuitry for asserting information to a user or external device and a system including such a cable. The cable can include conductors, a memory storing cable data, and circuitry configured to respond to a request received on at least one of the conductors by accessing at least some of the cable data and asserting the accessed data serially to at least one of the conductors (e.g., for transmission to an external device). Other aspects of the invention are methods for accessing cable data stored in a cable and optionally using the data (e.g., to implement equalization). The cable data can be indicative of all or some of cable type, grade, speed, length, and impedance, a date code, a frequency-dependent attenuation table, far-end crosstalk and EMI-related coefficients, common mode radiation, intra pair skew, and other information.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 3, 2009
    Assignee: Silicon Image, Inc
    Inventors: Ook Kim, Eric Lee, Gyudong Kim, Zeehoon Jang, Baegin Sung, Nam Hoon Kim, Gijung Ahn, Seung Ho Hwang