Design of Multiple Interactive Access between STB and Mobile Devices Dr. Mingoo Kang (Prof. of Hanshin University) Kangmg@hs.ac.kr

Introduction of MAI (Multi Access Interactive) TV broadcaster TV signal DSM-CC data carousel (interactive data) Play-out satellite or any MPEG-based stream STB Back channel data_1 Back channel data_2 GPRS/UMTS (return interactive data_1) Ethernet (return interactive data_2) Telco ASP (GSM SMS ) Internet ASP Bluetooth, WUSB, WLAN, Wibro….. Device Multiple interactive access between STB(Set-top Box) and mobile devices was proposed for content sharing with BT(Bluetooth) or WUSB(Wireless USB)

MAI (Multi Access Interactive) Platform : STB-2 ■ DVB-T/S2 MPEG-4 HD PVR Combo STB : VFD, 32Bit High-resolution OSD 2W (Standby Low power consumption) Bluetooth (Class1) / WUSB(UWB) based Telecommunications with Mobile Devices[PMP) Embedded HCI S/W : (Linux OS) BCHS(Blue Core Host Software) OS Porting Time Scheduling Application(SPP, Connect & Link) Task Inquiry & Pairing Data Send & Receive(UART or USB Interface)

MAI (Multi Access Interactive) Platform : Mobile Device-1(PMP) TI Davinci Solution : K-mobile U48X T-DMB (Mobile TV) : DRM, Navigation GUI, A/V Player, Image Viewer etc. A/V Recording MAI services Wi-Fi based Return Path : Browser 1. OS Win CE 5.0 Core/Professional 2. Mobility 60mile/h 3. HDD Access 10 msec 4. CAS Descrambling Time 1.3 sec 5. Zapping Time   (Free channel) 300msec 6. User Interface Interactive User Interface 61 Standard Keyboard 7. Outer Design 4.8" WVGA (800×480) 8. Outer Interface USB 2.0 / USB Host USB Device / Active Sync 9. inner Interface Wi-Fi Secure Digital Input/Output

Down Request for Selected List BT_CMD_DOWNREQUST:xxxx DEMO of MAI (Multi Access Interactive) with Bluetooth ■ DATA Tx. (Bluetooth) BT_CMD _CONNECT Content List Tx(Sharing) Process BT_CMD _CONTSNOTI Down Request for Selected List (Selected List No. Tx.) BT_CMD _DOWNSTART BT_CMD _TOTALBLOCK Process Process Down Block Request BT_CMD_DOWNREQUST:xxxx DATA Trans. 1 Block + Checksum Tx. Checksum DOWNREQUEST Process BT_CMD _CRCCHECK No CMD_REPLYCRC ALL CRC OK ? Yes Process BT_CMD _DOWNALLSUCC 붉은색 : 추가/수정 항목 – STB에서 공유할 컨텐츠 목록을 전송 해줌

DEMO of MAI (Multi Access Interactive) with WUSB ■ DATA Tx. (WUSB) STB real-time Recovery with WUSB STB Recording File Multimedia Contents (video, audio, image) Content File with WUSB Multimedia Contents (video, audio, image) Recovery Rx. File form Mobile(PMP)

DEMO of MAI with PMP(Mobile Device) ■ Content Tx. / STB Controlled Scenario BT_CMD_CONTSNOTI BT_CMD_DOWN START STB Request Play STB Download PMP(Mobile Device) STB Command, STB Message

DEMO of MAI Interfaces with PMP(Mobile Device) ■ MAI서 Applications MAI Data File (DCM-CC Data Carousel) Bluetooth Search, Pairing, Connection, Rx/Tx (USB to UART Middleware (FTDI)) < MAI Application– BT. Connection > < PMP Bluetooth  Comm >

Conclusion of MAI Services Bluetooth (Class 1) : Embedded HCI S/W Point-to-Multipoint , MultipointConnect, Disconnect, Rx/Tx (EDR–Enhanced Data Rate) , Multimedia WUSB(SiP, EMI/EMC, ESD, Packaging] (WLAN, Bluetooth) Coexistence Test Wireless USB Wireless USB Application S/W File System (FAT-16/32, Ext2/3) GUI(Graphic User Interface) Enhanced EPG (Electronic Program Guide), IP Protocol  New STB Platform for Multi Access Interactive of Mobile Devices with Bluetooth, and Wireless USB.  Future Works for Smart Home Gateway with Mobile Interfaces (Energy Saving Home/Office, Low Power Consumption for Devices)