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  • Sungho Yoos Portfolio

    This template can be used as a starter file for a photo album.

  • SUNGHO YOO Portfolio

    Email: yjung93@gmail.com Cell Phone: +82-10-9144-4895

  • Company Hyundai Electronics Inc. Customer SK Telecomm Responsibility Channel Card Software Development Working Site Korea Project Period 2001

    1xCDMA Macro System

  • 1xCDMA Macro System

    CSM Modem driver

    Trouble shooting and bug fixing CDMA protocol flow control S/W maintenance IS95B feature implementation

    ( Cell Broadcasting Service, Voice Privacy, Etc.) Language: C. OS: Real time OS( Qualcomms REX )

    CSM Modem H/W

    SK Telecomms Base Tranceiver Station

    SK Telecomms Base Station Control

    L1,L2 Layer

    Flow Control S/W

    L3 Layer

    Physical layer

    E1/T1 Air Link

    Mobile Phone

    Application Layer

    L2 Layer

    L1 Layer

  • Company Hyundai Electronics Inc. Customer KTF Responsibility Modem Card Software Development Working Site Korea Project Period 2002

    1xEV-DO Macro System

  • 1xEV-DO Macro System

    CSM Modem driver

    1xEV-DO modem (CSM5500) chip driver S/W Porting 1xEV-DO Physical, Mac Layer protocol stack S/W porting Distributed System base 1xEV-DO protocol flow control application

    development Language: C++. OS: Real time OS (Windriver Vxworks )

    CSM Modem H/W

    Base Tranceiver Station

    Mac Layer

    Flow Control S/W

    Security Layer

    Connection Layer

    Session Layer

    Steam Layer

    Application Layer

    Physical layer

    ATM Air Link

    Mobile Phone Base Station Control

  • Company Hyundai Electronics Inc. Customer KTF Responsibility Modem Card Software Development Working Site Korea Project Period 2003~2004

    1xEV-DO Micro System

  • 1xEV-DO Micro System

    CSM Modem driver

    1xEV-DO modem (CSM5500) chip driver S/W Porting 1xEV-DO Physical, Mac Layer protocol stack S/W porting Distributed System base 1xEV-DO protocol flow control application

    development Language: C++. OS: Real time OS (Windrivers Vxworks)

    CSM Modem H/W

    Base Tranceiver Station

    Mac Layer

    Flow Control S/W

    Security Layer

    Connection Layer

    Session Layer

    Steam Layer

    Application Layer

    Physical layer

    TCP/IP Air Link

    Mobile Phone Base Station Control

  • Company UTStarcom Korea Customer Verizon Wireless Responsibility Call User Interface S/W Development Working Site Korea, New York in USA Project Period 2005~2006

    Verizon Wireless mobile phone (CDM-7025)

  • Verizon Wireless mobile phone (CDM-7025)

    Qualcomm CDMA Protocol Stack

    Qualcomms Protocol API

    UTStarcoms UI Framework

    Phone Book App Call UI App SMS App Etc. Apps

    Modem Driver H/W Drivers REX OS DB

    Verizon Wireless UI requirement base voice and data Call UI implementation.

    CDG2 (CDMA Development Group2) certification feature implementation

    UTStarcoms new UI layer framework stabilization Language: C. OS: Real time OS ( Qualcomms REX)

    Debugging tools: Trace32

  • Verizon Wireless mobile phone (CDM-7075)

    Company UTStarcom Korea Customer Verizon Wireless Responsibility Call User Interface S/W Development Working Site Korea, New York in USA Project Period 2005~2006

  • Verizon Wireless mobile phone (CDM-7075)

    Verizon UI requirement base voice and data Call UI implementation. CDG2 (CDMA Development Group2) certification feature

    implementation UTStarcoms new UI layer framework stabilization Language: C. OS: Real time OS (Qualcomms REX)

    Debugging tools: Trace32

    Qualcomm CDMA Protocol Stack

    Qualcomms Protocol API

    UTStarcoms UI Framework

    Phone Book App Call UI App SMS App Etc. Apps

    Modem Driver H/W Drivers REX OS DB

  • AT&T Mobile Messaging Phone

    Company UTStarcom Korea Customer AT&T Responsibility SMS, MMS Message S/W Development Working Site Korea, Dallas, LA in USA Project Period 2007~2008

  • AT&T Mobile Messaging Phone

    Qualcomm UMTS Protocol Stack

    Qualcomms Protocol API

    UTStarcoms UI Framework

    Phone Book App Call UI App SMS,MMS App Etc. Apps

    Modem Driver H/W Drivers REX OS DB

    SMS, MMS Message composer implementation Qualcomms SMS protocol stack API interoperation Openwaves MMS solution porting Language: C. OS: Real time OS ( Qualcomms REX ).

    Debugging tools: Trace32

  • Morse Talk (Android App)

    Company Self Employed Customer Android Market Responsibility Application Development Working Site Korea Project Period 2011

  • Rece

    ivin

    g Pa

    rt

    Send

    ing

    Part

    Morse Talk (Android App) Use Case

    User enter text Message Send Morse code via flash light on-off pattern

    Decode Morse code from camcorder vision and convert it to text

    Encode text to Morse code

  • Morse Talk (Android App)

    Android Framework

    Vision Processor

    Signal Decoding Algorithm

    OpenCV Library

    Morse Code Translator

    Android platform base application implementation OpenCV ( computer vision open source library ) porting Using NDK tool chain for JNI interface Development of signal decoding algorithm from smart phones camcorder

    vision. Language: C++, Java. Platform: Android. IDE: Eclipse

    User Interface

    Camera Module

    Android Framework

    Message Sending Processor

    Morse Code Encoder

    Camera Flash Light Module

    User Interface

    Sending Part Receiving Part Flash Light On/Off

    Morse Code Pattern

  • Adobe Flash Player engine porting on Mstars smart TV

    Company PINEONE Communication Customer MStar Responsibility Adobe Flash Player Engine Porting Working Site Korea Project Period 2012.1~6

  • Mstars Android Framework

    Mstars TV Player

    Mstars Smart TV

    Apps

    Flash Player Engine

    Mstars Webkit Browser

    Porting Flash Player engine on Android and Linux system. Trouble shooting Adobes device certification test fail item. Porting Adobes DRM module ( Flash Access ) on android system Language: C++. Platform: Android, Linux

    Adobe Flash Player engine porting on Mstars smart TV

    Mstars decoder, media player, etc

  • IP TV application on Smart TV

    Company PINEONE Communication Customer LG U plus Responsibility Develop SmartTVs IP TV application ( Samsung, LG Smart TV) Working Site Korea Project Period 2012.7~2013.2

  • Webkit based application platform

    Menu and Etc UI

    Live Channel Player UI VOD player UI

    VOD Purchase, Live Subscription

    logic

    Developing LG U+ IP TV application on Samsung & LG Smart TV platform.

    S/W architecture is designed as a AJAX based Web application which is packaged as embedded app.

    VOD player UI, Purchase logic and interoperation with LG U+ Server Language: Java Script, HTML, CSS. Platform: Samsung &LG Smart TV

    IP TV application on Smart TV

    Embedded Linux OS, VOD & LIVE native player plug in

  • Adobe Flash Player Engine porting on NTT Android Set Top Box

    Company PINEONE Communication Customer OKI Electronics Responsibility Adobe Flash Player Engine Porting Working Site Korea Project Period 2013.1~

  • Jelly bean or Ginger Bread Android Framework

    Menu and Etc UI

    NTTs Launcher

    Adobes Flash Player Engine

    NTTs Movie Channel Apps

    Porting Flash Player engine on Android based IPTV set top box. Optimize Adobes RTMFP (Real-Time Media Flow Protocol) protocol

    stack and enable it to support 1080p, 5Mbps Trouble shooting Adobes device certification test fail item. Language: C++. Platform: Android

    Adobe Flash Player Engine porting on NTT Android Set Top Box

    Telechips chipset based native decoder, devier. etc

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