Download - Portfolio Sungho Yoo
Sungho Yoo’s Portfolio
SUNGHO YOO Portfolio
Email: [email protected] 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( Qualcomm’s REX )
CSM Modem H/W
SK Telecomm’s Base Tranceiver Station
SK Telecomm’s 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 (Windriver’s 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
Qualcomm’s Protocol API
UTStarcom’s 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
UTStarcom’s new UI layer framework stabilization Language: C. OS: Real time OS ( Qualcomm’s 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 UTStarcom’s new UI layer framework stabilization Language: C. OS: Real time OS (Qualcomm’s REX)
Debugging tools: Trace32
Qualcomm CDMA Protocol Stack
Qualcomm’s Protocol API
UTStarcom’s 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
Qualcomm’s Protocol API
UTStarcom’s 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 Qualcomm’s SMS protocol stack API interoperation Openwave’s MMS solution porting Language: C. OS: Real time OS ( Qualcomm’s 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 phone’s 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 Mstar’s smart TV
Company PINEONE Communication Customer MStar Responsibility Adobe Flash Player Engine Porting Working Site Korea Project Period 2012.1~6
Mstar’s Android Framework
Mstar’s TV Player
Mstar’s Smart TV
Apps
Flash Player Engine
Mstar’s Webkit Browser
Porting Flash Player engine on Android and Linux system. Trouble shooting Adobe’s device certification test fail item. Porting Adobe’s DRM module ( Flash Access ) on android system Language: C++. Platform: Android, Linux
Adobe Flash Player engine porting on Mstar’s smart TV
Mstar’s decoder, media player, etc
IP TV application on Smart TV
Company PINEONE Communication Customer LG U plus Responsibility Develop SmartTV’s 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
NTT’s Launcher
Adobe’s Flash Player Engine
NTT’s Movie Channel Apps
Porting Flash Player engine on Android based IPTV set top box. Optimize Adobe’s RTMFP (Real-Time Media Flow Protocol) protocol
stack and enable it to support 1080p, 5Mbps Trouble shooting Adobe’s 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