Tablet as a multi-purpose tool for television viewer

3 September 2019

Japan Cable Laboratories

Evolution of Cable STB in Japan

1953 1960 1989 1996 2010 2014B/W(SD)

Color TV(SD)

Muse(Analog HD)

Digital TV（SD/HD)

20132008IPTV

2016

Accelerated evolution after 2008

Smart TV

YouTube

OTTHulu

Single Platform

GoogleTV

AppleTV

Manufacturers Platform

SamsungPanasonic

acTVila

Broadcasters Platform

HbbTV HybridcastGoogle

PlayApp

Store

High

Qu

ality Vid

eo

Large Display, Less power consumption

Large LCD

OLED

UHDHD

VR/AR

• Downloadable applications• Interactive with smartphones and home network• ITU-T J.295/296 (Hybrid Cable STB)

2nd Generation STBSmart TV compatible

ImprovedUI/UX

HTML5 DAE

Home Network

DLNA

Smart TV

4K/8K

• 4K Video• 5.1ch audio• ITU-T J.297 (4K Cable STB)

４K UHDTV

1st Generation Digital STB

2

Netflix

SD

H.265HEVC

H.262MPEG2

H.264MPEG4 AVC

Smart TV services with 2nd Gen STB

HOME NETWORK

Wi-Fi

2nd Gen STB

CableOperator

Internet

BillingID Search

Recom-mend

Smartphone & Tablet

HFC (DOCSIS) or FTTH

Mobile NW（3G, 3.9G, 4G), Wi-Fi

Content Metadata

APP

Common APPs (Games, Widgets, Tools, etc)

Multiple DVR

NAS

Content to go

Cable Portal

Widget

Internet VideoInternet Radio

Target Ad.

Remote UI（2nd screen）

Service Delivery Platform (SDP)

UIInteractive content

Multi-device

HTML5, Android Applications

3

JLabs 3rd Generation STB

3rd Gen STB

4K UHDTV

Remote Viewing

on the road

MirroringPersonalized PortalEPGRemote control

Multi-device

Services for and in collaboration with tablets and smartphones

4

Tablet as a second screen

DMS (Digital Media Server): Stores video, audio and other content for delivery to other device

DMP (Digital Media Player): Plays content received fromDMC (Digital Media Controller): Requests content from DMS and assigns player to play itDMR (Digital Media Renderer): Plays content in response to command from DMC

DMS

HDD NAS

DMP

Audio

TV

DVR

LAN DMP/DMS

TV with HDD

DMP/DMC/DMR

DMP

DMSSTB with Wi-Fi AP

5

Tablet

DLNA (Digital Living Network Alliance*) enables sharing of video, audio and other content between Digital Media Server (DMS) such as STB and HDD, and Digital Media Player (DMP) such as TVs, tablets and smartphones

Using this scheme, tablet can be used as a second screen to share the same content being shown on the main television set.

* DLNA dissolved in 2017.

DLNA Layer model

6

Video server Video playerApplication

Encryption

Media formats(Encoding & bitrate)

Media Transport

Media Management & Control

Device discovery

Network Protocol

LAN/Wi-Fi LAN/Wi-FiPhysical Layer

TCP/UDP

IP（IPv4/v6）

DTCP-IP

eg: H.264 480P

HTTP

UPnP AV

UPnP

TCP/UDP

IP（IPv4/v6）

DTCP-IP

H.264 480P

HTTP

UPnP AV

UPnP

Broadcast

Video

Digital Media Server (DMS)

such as STB with HDD、HDD Recorder

Digital Media Player (DMP)

such as TV, Tablet, smartphone

Home Network

Watch video

in bedroom, etc

Remote viewing extends the second screen concept beyond the living room, by enabling Mobile Digital Media Players (M-DMP) such as smartphones and tablets outside the home, to view broadcasting content (real time and recorded) from Digital Media Servers (DMS) such as TV, STB and HDD inside the home

Channels for view include Japanese terrestrial TV channels, some satellite channels and cable channels.

*Next Generation Television & Broadcasting Promotion Forum

Tablet as a Remote Viewing tool

Home Network

M-DMP

DMS

Can view on-air and recorded cable channels using

smartphones and tablets outside the home

7

STB（DMS）

Mobile Players（M-DMP）

Keeps a list of paired M-

DMPs

Remote viewingoutside the home

Gateway（For NAT transversal）

（up to 6）

Paired*

(1) (2) (3)

● ●

How Remote Viewing works

Mobile players must be paired with a digital media server (DMS) such as STB inside the home, before it is carried outside the home. Up to six players can be paired with a DMS but only one player can use this service at a time.

Media Format(H.264)

360P(SD) or 480P(SD)

Optionally: 180P(SD)、720P(HD)、1080P(HD)

*Must be paired every three months

8

Tablet as a remote controller

9

The STB outputs including video, audio and web content are shown on the table screen

Touchscreen control

Extended DMC commands to change channels, etc

STB

Easy control of STB by use of Tablet

Touch and control

Touch on the image of STB output displayed on the tablet screen, to change channels, increase or decrease volume, enlarge part of the picture, and so on

Tabletserves as DMC(Digital Media

Controller) of DLNA

How it works

10

To send How

Video content from STB to tablet STB acts as DMS (Digital Media Server) as defined by DLNA, to send real time and recorded video

Tablel control command to STB Extended DMC command to control STB and web browser

Web and EPG content from STB to tablet

VNC: Virtual Network Computing

Cable STB

Video content from STBStandard DLNA/DMS interface

Tablet control command

Video Content

Tabletcontrol

Web content from STB

VNC Interface

Web and EPG content from STB

Command from Tablet to STB in XML

Response from STB to Tablet in XML

11

Some extended DMC commandsRoI (Region of Interest)

Enlarge part of 4K/8K content to view details

Pinch outSTB

Extended DMC

EPG

STB

Extended DMC

Pinch-out, swipe

EPG Enlarge and scroll

confidential 12

Tablet as an AI Smart Speaker

Alexa Service

Google Assistant

Convert voice to

commandRecognized command

sent to server

Server(cloud)

Determines the

subject of control

Show latest

news

Show football

game

Voice command

Request STB to play video

STB needs to install command API

Relays voice message

Table works as a smart speaker

Tablet works like a Smart Speaker

Works with Google Assistant and Amazon Alexa

Tablet serves as a gateway to STB and smart home devices

TabletSTB and

Home electronics