The Arrival of Digital Home

What is DLNA?
DLNA stands for “Digital Living Network Alliance”. It's a way for multimedia devices to communicate with each other on a local network. DLNA-compliant devices can stream

local video, audio, and picture files to each other over your network. It’s a way for your TV to stream videos from your media server and your smartphone to act as a remote that can play a file from one device on another device. That’s the idea behind DLNA.

How DLNA Works
DLNA-certified devices use UPnP — Universal Plug and Play — to discover each other on your network and communicate. DLNA divides devices into different classes. For example:

DLNA is based on Universal Plug and Play. DLNA-compatible devices use UPnP to communicate, and there are three classes of DLNA devices:

Home Network Devices: includes media servers, AV receivers, TVs, consoles, and tablets
Mobile Handheld Devices: includes smartphones and media tablets
Home Infrastructure Devices: includes routers and hubs.

UPnP
UPnP is a set of networking protocols, which allows devices to discover and talk to each other on a shared network. This is basically how your computer accesses Wi-Fi or sends files to the printer. Most likely, your computer uses DLNA and UPnP to play media and communicate with other devices within your network. All DLNA certified devices use UPnP to communicate with each other. Technically, your computer becomes a DLNA server when it streams media across multiple devices. So together, UPnP and DLNA help your devices to talk to each other.

What is "universal" about UPnP technology?
No device drivers are used to set up the things, common protocols are used instead. UPnP networking is media independent. UPnP devices can be implemented using any programming language and on any operating system. The UPnP architecture does not specify or constrain the design of an API for applications; OS vendors may create APIs that suit their customers’ needs.

UPnP Device Architecture
The UPnP Device Architecture is the core of the UPnP technology and defines the basic network protocol for communication among devices. The UPnP Device Architecture specifies six levels of protocols and technologies that must be implemented in a UPnP device. These are:

Addressing: The device joins the network, acquiring a unique address that entities can use to communicate with the device.
Description: The device summarizes its services and capabilities in a standard format.
Discovery: The device is found by control points that learn about the device's capabilities by retrieving a device description
Control: The device handles requests from control points.
Eventing: The device notifies registered control points of internal state changes.
Presentation: The device provides an HTML-based administrative interface to allow for direct manipulation and monitoring of the device.

Refrence:

http://www.artima.com/spontaneous/upnp_digihomeP.html

Comments

Post a Comment

Popular posts from this blog

Understanding Top line and Bottom line?

Understanding Top line and Bottom line? Top line – It’s the revenues generated by a company or what you might call the gross sales. When people talk about the company’s “topline growth”, they refer to an increase in its gross sales or revenues. When companies speak about the need to increase their topline, they are discussing about the need to focus on generating/increasing sales. This is money that is coming in before any expenses are deducted. Bottom line – The bottom line is the income that is left after all expenses have been deducted. You might also call this the company’s net profit. Some of the expenses that are usually being deducted are things like loan repayments, loan interests, administrative costs, taxes and even salary to employees. So there could be a big difference between the Top line revenues and the Bottom line revenues. A company’s bottomline can also be referred to as net earnings. Bottomline usually shows the efficiency of the company in controlling ...
Read more

How to activate PF UAN account

Image
1. Go here... http://uanmembers.epfoservices.in/ 2. Select "activate your UAN" 3. Enter your UAN, Mobile no., select Delhi - South as state (or your PF office), Then enter your  PF number (middle box will be empty). as shown below in picture 4. Get PIN on your mobile number 5. Enter PIN and submit 5. Enter your email address and create password Thanks, Jakir
Read more

Scrum Master vs Product Owner

The most common confusion in the 2 roles of Agile-SCRUM is between Scrum Master & Product Owner. The Scrum Master is in charge of making sure the Scrum process is followed. The Product Owner (PO) is the person in charge of making sure the product succeeds in the direction the company wants to go. The PO does this by setting priorities of product backlog items, making sure all needed parties are there for both the sprint planning and sprint review (both are very important). If something occurs and either the scope explodes or decisions need to be made, the PO is the person who gives the answers to the decisions. Product owner act as the feature prioritize(r) and main point of contact between business/customer and IT team. If product not succeed and probably reason is prioritization issue then product owner may be "single wringable neck" person. The Scrum Master is making sure the process gets followed and working through the adaptation of Scrum to your organization. By do...
Read more