Portfolio from 2005 ~ 2015

1. Portfolio
Steve Kyong-lok, Yoon (윤경록|尹景祿)
steveyoon77@gmail.com

2. WHAT I’VE DONE
2005 20152009 2010
Developed DVB-H software
solution
Developed DRM software
solution
Developed DCAS software
solution
Developed DAB software
solution
CUSTOMERS:
Newport Media Inc. Alticast Inc. Telechips Inc.

3. WHO AM I
• Enjoying the job
- Making enjoyable environment for a job.
- The film shows an event during DAB field
test trip in EU.
• Outside activity
- Making connections with people who
interest better practices for work.
- The picture was taken in XPER group
seminar for non-violent communication.
• Self-development
- Heavy reader for self-development.
• Co-working
- Making drastic co-working for a result.
- The picture was captured something
drawn on white board during a discussion.

4. DVB-H & DRM
(DIGITAL VIDEO BROADCAST – HANDHELD & DIGITAL RIGHT MANAGEMENT)
A/V codec
interface
CAS/DRM
interface
Return
Channel
interface
Protocol
interface
ESG interface
Interfaces
XML / BiM GZip
ESG manager
SDP
parser
PSI/SI
decoder
DVB-H protocol
stack
Contents
interface
Return Channel
interface
Control interface
Interfaces
LTKM STKM
Key manager
SDP
parser
XML
parser
ISMACryp / IPSec(IPv4)

5. XCAS (EXCHANGEABLE CONDITIONAL ACCESS SYSTEM)

6. DAB (DIGITAL AUDIO BROADCAST)
MultiplexConfiguration
Information
ServiceInformation
DAB Physical layer
Fast Information
Channel
Main Service Channel
Stream Mode Packet Mode
DABRadio
(MPEG-1/2LayerII)
DAB+Radio
(HEAACv2)
FEC
DMBVideo
(BSAC,
HEAACv2)
MPEG-2 TS
FEC
SlideShow
ElectronicProgram
Guide
BroadcastWebsite
Journaline
MOT
(Multimedia Object Transfer)
Control layer
Interfaces

7. CRAFTSMANSHIP
More than 10 years’ experience as a
software engineer.
Skills include:
• C/C++(high level),
C#/Java/Python(capable)
• Familiar with RTOS (Qualcomm REX,
Nucleus) and Linux
• Make beautiful codes complying with KISS
and DRY principles.
This codes shows how to be written codes by
myself.

8. Reloaded 2015
Thank you for listening.
I hope we make relationship for
sustainable businesses.