Tag: DLNA

 TiVo, Sony and others to FCC: ‘gateways’ should replace CableCARD — Engadget HD

My comments on this idea

The common situation with most TV households is that if they sign up to a pay-TV service like Foxtel (Australia), a local cable-TV franchise in the USA, DirecTV (USA) or Sky TV (UK), they can only watch TV through the set-top box provided by the service provider. The TV remote control ends up becoming redundant as they have to use the set-top box’s remote control for their TV viewing.

If they want to use a DVR i.e.. a “personal TV service”, they have to use the DVR option provided by the pay-TV provider rather than get a retail DVR solution like TiVo, a home-theatre PC such as Windows Media Center or one offered by a major consumer-electronics brand. In some situations like some cable-TV implementations in the US, you may be able to use a retail DVR solution along with a special “CableCARD” and, perhaps, a “tuning adaptor”. But this doesn’t provide the full service that the customer has put money up for, such as interactive TV or access to “pay-per-view” or “on-demand” content.

As well, a lot of these providers often charge an extra fee if the user wants to deploy a set-top box in other rooms. This typically means that one TV set, usually the one installed in the main lounge room or family room, is subscribed to the pay-TV service. At best, most users may deploy the second set-top box in a secondary lounge area like the rumpus / games room.

What is the layout preferred by TiVo, Sony and others?

The layout would consist of the following:

• A “gateway device” or broadcast-network tuner connected to the cable service or satellite dish which “tunes” the pay-TV services and manages access to these services. It then makes them available over the home network using IP-based standards and technologies.  This device can also pass back information relating to “pay-per-view” content orders or interactive television from the endpoint devices. It can also handle on-demand content offered by pay-TV providers in the convention context and fulfil the content to the desired end-devices.
• Standards-compliant endpoint devices (TV sets, DVRs, etc) that are connected to the home network and discover the services and content using technologies like DLNA. These devices can work with interactive services provided by the TV service provider and provide the viewer’s responses to the gateway device via the home network.

This is similar to the “broadcast-network tuner” setups like Devolo’s dLAN Sat, the Tivit ATSC mobile DTV WiFi tuner and the HD HomeRun tuner, where there is a digital-broadcast tuner that passes the signal via an IP-based home network to a hardware set-top box or software player program in a general-purpose computer so people can view the TV programme. These solutions typically used a non-standard control method and, in most cases, a single RF front-end so that only one TV set could operate at a time and they couldn’t work with a DVR or similar device.

Why develop this layout?

There is a desire for true competition in the multichannel pay-TV industry concerning end-user devices that is similar to what has occurred with telephone hardware since the Carterfone Decision in the USA and the Davidson Inquiry in Australia. One of the goals is to provide a TV navigation interface that encompasses off-air, pay-TV and IP-delivered content in the one electronic programme guide. This guide’s interface would be “skinned” to match the host device’s branding or any user customisations that are available to the device’s user. It also means that the user only needs to deal with one remote control to find whatever they want to watch.

This kind of layout could allow each TV set and each computer in the house to have access to all of the pay-TV services, rather than the common situation of having to deploy pay-TV set-top boxes to each place where there is a TV set.

There is the ability to upgrade the gateway to suit changing technological needs such as change of infrastructure or improvement in transmission or security protocols. That same ability also exists if the user wants to change providers or sign up to a supplementary-content service. Here, in all the situations above, there is no need to replace the end-user’s devices like DVRs or Internet-enabled TV sets, nor is there a need to replace software on any of the computers in the house to accommodate these changes.. In these cases, the software or firmware can discover the new services that are provided through the new hardware.

What needs to happen

One thing that needs to happen is high-profile implementation of common standard technologies like UPnP AV in the broadcast-reception sphere. This includes having endpoint and recording devices work to these standards when discovering and receiving broadcast signals via an IP network. It also includes the recognition of electronic-programme-guide data provided by these gateway devices, especially if the device that benefits from the data is a recording device like a “personal TV service”. It doesn’t matter whether the client device has the programme-guide data or the broadcast-network tuner has that data. This also includes handling situations where the same broadcast service can be received through different paths such as one or more over-the-air channels and / or a cable or satellite service.

In a similar light, broadband routers that work as the network-Internet “edge” could work as a “gateway” for IPTV services by storing channel lineups and service-authority information for these services.  This device may also have to support handling of interactive-TV sessions in situations where the endpoint device cannot handle the sessions itself.

As well, interactive-TV setups would need to work with an IP backhaul irrespective of whether the TV signal is delivered via RF (cable, classic-TV-aerial or satellite) means or via an IP feed. This also includes allowing access to downloaded assets associated with interactive content.

Conclusion

As mentioned before, what needs to happen is the use of common standards and device classes to support broadcast-network tuners; standard viewing and recording devices; and the home network in order to democratise the provision of pay-TV services.

If anyone is wanting to question why my blog is geared towards UPnP-based network management standards, especially the UPnP AV / DLNA Home Media Network standards, I am writing this piece to state what I am about.

I am not a spokesman for UPnP or DLNA or any of the companies that are behind these standards, but do place a high value on networks, network hardware and network media software supporting any of the UPnP AV / DLNA Home Media Network Standards. One of the main reasons I value these standards is that they work across any IP-standard subnet and allow hardware manufacturers and software developers to integrate the home media network in to their creations without reinventing the wheel.

Due to the nature of UPnP, the user doesn’t need to “run backwards and forwards” between devices to make sure devices are pointing to the correct network shares and that usernames and passwords are correct on both the client device and the server. This can become more of a headache for devices that don’t have the full QWERTY keyboard on them and require the user to use “SMS-style” or “pick-n-choose” text entry which can increase room for user frustration and mistakes. They also make the establishment of these multimedia networks as idiot-proof as possible, which would benefit home and small-business users where there isn’t a dedicated IT team available..

I also agree that a standards-based IT environment encourages hardware and software innovation as well as encouraging a “common-sense” approach to technology. It can also lead to these concepts being implemented in the most cost-effective manner, which makes the device affordable for most people, yet there is the ability to provide premium-grade equipment. This has led to hardware that is compliant with this standard becoming increasingly ubiquitous.

I know that Windows supports the standard through Windows Media Player 10 and has full “three-box” implementation in Windows Media Player 12 which is part of Windows 7. As well, I have noted that the open-source community have developed servers and similar software that can work with a Linux system. This feature is now considered “par for the course” for nearly all consumer and small-business network-attached storage units.

As well, the Microsoft XBox360 and the Sony PS3, which are considered “must-haves” as far as games consoles are concerned, have support for this technology. Samsung and Sony are also gradually implementing UPnP AV / DLNA in to their “main lounge area” televisions, with Sony nearly implementing the technology in to all television applications. Most of the big-time electronics manufacturers who have a line-up of home-theatre receivers have this feature in at least the high-end models, with some manufacturers pushing the feature in to the mid-range models. As well, nearly all Internet radios can play audio material held on DLNA-based media servers.

So the main reason I place a lot of value in the UPnP AV / DLNA Home Media Network is because of the ease that there is in establishing a heterogeneous multimedia network with products that suit what you want to do.

News articles

Rovi Home Network Media Syncing Automotive Solution Announced | eHomeUpgrade

Rovi hooks cars up to home media collection | TechRadar (UK)

From the horse’s mouth

Rovi’s own page about their automotive network solutions

My comments on this topic

What Rovi is doing is integrating the vehicle in to the home network and its content pool. This will, as far as car entertainment companies are concerned, legitimise the feasibility of a hard disk / solid-state drive and/or WiFi network connection in the car AV system.

Key features

Content-description metadata would be available for CDs, DVDs and Blu-Ray discs in a manner similar to the current practice with iTunes or Windows Media Player. This can also work well with setups that have a built-in hard disk and a “rip-to-hard-disk” function for CDs. This can be updated with new data over the network connection or with the user transferring data from their PC using removeable media.

There would also be the ability to have improved content lookup available for applications where the media is stored as files in a file system like in an SD card, USB memory key, mobile phone or MP3 player like the Apple iPod.

Another key feature that Rovi has established in the press collateral has been the concept of transferring and syncing media content between the vehicle and a media collection hosted on a DLNA media server. This again would work with a 2.5” hard disk that is located in the car and used as the data storage.

There is even the concept of sharing data held in the vehicle or devices plugged in to the vehicle with associated networks which could allow for such things as map updating for satellite navigation and, I may have said this before, collection of diagnostic information from the vehicle.

Where do I think this will exist

The concept will typically appear initially as equipment installed at the factory in high-end cars and / or as high-end aftermarket car AV equipment that appeal to young men who turn their highly-customsied cars into “mobile discos”.Also these kind of markets are based around people who are usually more willing to spend big on the new technologies.

The primary form factor for aftermarket deployment may typically be in the form of the 2-DIN car navigation/audio/video head-unit with a large touchscreen on the front. It is because these head-units will typically have room for an integrated hard disk alongside a CD drive.

Some manufacturers may move towards moving the hard disk out of the head unit so as to reduce costs or design equipment that fits in to a 1-DIN car accessory space. This will typically allow for a USB or eSATA hard disk in an enclosure with an automotive-rated power supply located somewhere in the dash. On the other hand, highly-compact SSDs could become part of 1-DIN head-units which become part of the home network.

The network connectivity issue may be worked out either with an integrated WiFi-Bluetooth radio platform in the head unit or a WiFi network adaptor on the end of a USB cable or WiFi-Ethernet bridge on the end of an Ethernet cable located near the windscreen (windshield) or the rear window.

Conclusion

Once Rovi have established this technology, it could mean that the car will exist as part of the home entertainment and information network.

Improved sound-reproduction infrastructure

Some of you may use two or more sound cards in your computer; such as using the sound circuitry that is part of your motherboad as well as an aftermarket sound card. Windows 7 caters for that by allowing you to relegate a particular sound subsystem to a particular program or activity. A common use would be to use a Bluetooth headset for Skype and related VoIP communications, gaming taunts and similar applications while you have your music playing through the main speakers. Similar you could connect a “good” sound card to a good sound system for recording and playback while the onboard sound infrastructure can be used for system sounds.

Even the ability to send digital audio signals to home-theatre equipment via the HDMI port has been improved. It includes the ability to pass the high-definition audio streams from BluRay and similar applications as a raw bitstream. It will also provide the multiple-sound-device functionality as mentioned previously with HDMI audio setups that use a dedicated sound infrastructure rather than feeding an SP-DIF audio bitstream from the computer’s main sound card.

As well, there is functionality that permits the music or video sound to be reduced in volume whenever a VoIP or similar call comes in even if the call goes through a different sound device, which makes life easier when you take these calls using the computer.

DirectX and Gaming

DirectX in Windows 7 has been taken up to version 11 and this has brought forward a lot of improvements as far as computer games go. This also includes a lot of work “under the bonnet” to improve game responsiveness with the screen and sound and bring up PC gaming to current-generation console level.s

Streamlined network management

The network management functions are similar to what Windows Vista users have expected in the Network And Sharing Center, But this interface has been streamlined and made easier to use. The “full map” is still available and you can gain access to shared resources or UPnP-provided device management pages when you click on the various devices.

HomeGroup

This feature is a way of establishing a “circle of trust” within a home network when it comes to sharing resources around that network. This is based on a computer-generated password that is used across the HomeGroup to authenticate all of the computers on the network to the resource pool. At the moment, this only works across Windows 7 boxes on the network, but it may be worth keeping an eye out for Microsoft and third-party downloads that allow Windows 2000 / XP / Vista, Macintosh and Linux boxes to work in with a HomeGroup setup.

This is another way that Microsoft implemented a practice commonly associated with locks and keys, Here, the identifying factor that only allows the lock to work with particular keys is already determined by the tumblers that are integrated in the lock’s mechanism and these tumblers are configured to work that way either by the manufacturer or by a locksmith when you have the lock rekeyed.

The first instance of this was with Windows Connect Now, which was implemented in Windows XP Service Pack 2 as a way of configuring a highly-secure wireless network. Here, the WPA-PSK passphrase was determined randomly by Windows Connect Now and used as part of a “configuration manifest” file to be transferred to routers and other computers using a USB memory key. This was extended to Windows Vista through the WPA-PSK passphrase being uploaded to a compliant wireless router using an Ethernet connection, and was integrated in to Wireless Protected Setup which is implemented as part of Windows Vista Service Pack 2.

Another advantage provided with HomeGroup is that it can work with “work-home” laptops that move between a domain-managed business network and a home network. HomeGroup can also cater for other small networks, because there is the option to share particular resources with particular users as you were able to do son with any Windows-based CIFS network.

Improved DLNA support

Windows Media Player 12, which is part of the Windows 7 distribution or, in some cases, available as a free download from Microsoft, has DLNA built in to its ecosystem. This doesn’t just stop at sharing media files with DLNA / UPnP AV media devices or streaming media files from other DLNA / UPnP AV media servers like NAS boxes. It allows you to “push” content to DLNA / UPnP AV media devices that present themselves as “MediaRenderer” devices. This is typically provided in the form of the “Play To” right-click shortcut for multimedia files.

Remote Media Streaming

You can stream content from one Windows 7 computer to another over the Internet as long as you use the same identifier, like a Windows Live ID. with each of them. This can be useful for situations like temporary accommodation like hotels, holiday homes or serviced apartments where you may have your computer at home running and you may want to play media at your temporary location. I have discussed this feature before on this blog and have raised issues regarding VPN operation and the computer that is pulling the media being able to serve it to DLNA-compliant media hardware on its local network.

Inherent support for current digital-TV standards and Internet TV

Windows 7 provides its Media Center application with inherent operating-system support for currently-deployed digital-TV standards so there isn’t much need for TV tuner card manufacturers to supply software to work with the current standards. As well, this operating system provides improved support for “over-the-top” Internet TV services that may be released in your country. In some cases, this may do away with the need for the coaxial TV cable to the computer or the need to sign up to cable services full of “fodder channels” to gain access to the “good channels”.

Next article in the series will touch on how Windows 7 will benefit the small business and the work-home laptop.

TwonkyMedia have capitalised on their UPnP AV / DLNA expertise and developed a browser helper object that can play user-selected music, pictures and video from a Web site that you are browsing on to a DLNA-enabled media renderer device “there and then”.

What is TwonkyBeam

TwonkyBeam is a browser helper object which allows you to “push” media found on a Web page to your UPnP AV-enabled media device(s). This can come in handy with YouTube videos, Facebook or Flickr photos, last.fm music or similar sites where you may want to have the media on devices other than your PC’s screen or your laptop’s tinny speakers.

At the moment, the program has been written to work with Windows and Internet Explorer, but will be ported to other desktop Web-viewing environments.

How does it work

Once the software is installed, there is a window that lists all compatible media on the Website and you select which media you want to use. As you select the different media, the media file’s URL is highlighted in the main Web page. In that same window, there is a list of UPnP AV-enabled media players on your network that accept “push” content.

The user identifies the media player that they want to push the media to and selects the media to be viewed in the media list. Then, to show the image, they press the “play” button in that window above the media player list.

On the other hand, the user can right-click on the link and select “TwonkyBeam to” as a way of putting the media on to the DLNA device.

Limitations with certain Websites

At the moment, the current version that is available is a “rough diamond” beta version. In some ways, the program doesn’t provide full access to photo albums that are broken in to groups of, say, 20. This may limit its usefulness with large Facebook photo albums or Flickr photostreams, which is what I have often used the program with when testing it against the “TwonkyMedia Manage UPnP AV Media Renderer”. Nor does it provide access to embedded media clips like most of YouTube’s pages or video clips that are set up in news articles, blogs and social-networking sites. These are the ones where there are playback controls integrated in to the site’s user interface and you can typically see the video in the Web page.

Web developers may have to provide an “all images” view as an option for photo albums or write a “link” URL for video clips that are ordinarily embedded to work around the limitation. The “link” URL could be part of the article’s copy or as a separate link under the embedded video.

Development ideas

One way of improving this program would be for Websites to support media XML files that describe the primary media assets. This would include collections that are broken up in to paginated groups like most Web photo albums.

Similarly, there could be support for handling Flash-embedded videos that are common to YouTube sites and most Web sites that include video material. This could be looked at through the development of applets that “click on” to TwonkyBeam and similar programs and expose the video clips to these programs.

Conclusion

This program can work as a “quick and easy” way to get media that is in a Web site up on to the large screen or better speakers of a DLNA-connected TV or stereo system. It could, in some ways, legitimise the need for one of the Sony or Samsung DLNA-enabled flatscreen TVs in the office or conference room.

The review will be updated whenever the beta version of this program is “polished up” and ready for full release.

I have been observing the situation with UPnP AV / DLNA as a standard for network-based music distribution and have noticed something which may be considered unusual in the world of “serious hi-fi”.  A few boutique hi-fi manufacturers, Arcam, Linn, Naim, T+A and Revox, have spent a lot of time in technical research in to achieving the best sound with good music provided via FM radio, records, tapes and CD, have taken their expertise towards music distributed via the home network.

Their solutions have been based around the UPnP AV / DLNA media-delivery protocol over common IP networks and using common codecs like MP3, FLAC, AAC and, in some cases Ogg Vorbis and WMA. Because they don’t need to develop client and server software and that the DLNA media server is available in standalone devices like NAS boxes, therefore, it has become easier for the manufacturers to concentrate on high-quality decoding, digital-analogue conversion and reproduction of the music through their equipment. A lot of these units support the DLNA standard to full expectations such as support for “three-box” operation as mentioned in this feature article.

Some manufacturers have built the functionality in to a receiver(Arcam FMJ AVR600) or music system supplied with or without speakers (Naim Uniti, T+A Caruso, T+A Music Player) or have supplied it as a component (Linn Akurate, Klimax or Majik DS) or retrofit kit for existing equipment (Revox Module Multimedia for M10 or M51 receiver).

Other manufacturers in this league haven’t yet supported UPnP AV / DLNA because of investment in a multi-room audio distribution system or network audio technology they have invested in; haven’t yet developed such equipment or simply that they want to stay away from the field of network audio.

I have written up an article about integrating classical music in to your network music collection and have made suggestions regarding optimum codec setups for your digital-audio files. This is worth reading if you intend to use any of these products with your home network and want to get the best value out of them.

Peugeot intègre le Wi-Fi dans ses véhicules | DegroupNews (French language)

Chrysler confirms in-car Wi-Fi coming next year | Engadget

BMW’s ConnectedDrive brings the whole internet to your car… on EDGE | Engadget

There is a new trend concerning the small network in that the car will have its own IP-based network with a link to the Internet. This has been brought about by manufacturers making WiFi “edge” routers with a 3G wireless link on the Internet side for installation in vehicles. Similarly vehicle builders like BMW, Chrysler and Peugeot are using this feature as a product differentiator in some of their vehicle models.

But what use are these devices?

Primarily these devices provide Internet access to passengers in minivans, limos and the like; and some bus fleets are taking this further for provision of Internet access to their premium routes. Some people may also think that these routers may have the same appeal as the “component-look” car stereo systems of the late ‘70s and early ‘80s; where they only appealed to young men who were customising cars and vans in order to impress others.

What could they offer

Like the typical home Internet-edge router, all of these routers offer Ethernet and WiFi for the local network connection, which means that car devices can be directly connected to these Internet gateways. This can lead to online applications being made available to integrated or aftermarket-installed equipment which is being considered as sophisticated as a typical personal computer.

Ethernet port on the car stereo

A car stereo system could have an Ethernet port and support the same kind of network media services as some of the in-home entertainment systems offer. One application could be Internet radio functionality, where the set could have access to the Frontier Platform, Reciva or vTuner Internet-radio directories; and be able to pull in Internet radio from around the globe. An idea that may come to mind is the concept of young men “cruising” along Chapel Street in South Yarra; Campbell Parade in Bondi; Surfers Paradise or other “show-off” streets in Australia or coastal USA with the dance grooves from Heart London’s “Club Classics” program thumping out of the “subs and splits” in their souped-up machines during a special UK long weekend. Another function would be to support the “visual radio” platform that is part of most mobile-phone FM-radio implementations.

Another more interesting application is an in-car DLNA media network. The 3G WiFi router could work as a WiFi client when, in the presence of the home network, cause syncing of content between the home DLNA media network’s server and a hard disk built in to the car stereo. This allows for newly-added music content from the home network and up-to-date podcasts to be available in the car.

Similarly, there could be the ability to play content held on a DLNA-capable WiFi-enabled mobile phone or portable media player through the car speakers. As well, a small NAS like the Thecus N0204 miniNAS which I have mentioned about in this blog could be shoehorned to work from a car’s power supply and become a DLNA-enabled media storage unit for the car.

This functionality can be extended to the back seat in the form of access to newer video content from the home network or access to online video content to the back screens. As well, the vehicle’s music system could work as a DLNA media server for use in providing media at secondary locations like holiday homes or worksites. This would be in conjunction with a DLNA-compliant media player connected by a WiFi segment between the vehicle and the building’s network.

There is more information about how DLNA is investigating implementation of this standard in the automotive context in this white paper (PDF) at their website.

Ethernet connection for navigation systems

The “sat-nav” systems can benefit from Ethernet connectivity for integrated units or WiFi connectivity for portable navigation devices. This could allow for these systems to have up-to-date information about new points of interest as well as another link for receiving real-time traffic information.

The IP feed can work very strongly with real-time information being received from the wireless Internet in order to provide updated traffic information and / or real-time service information for garages, restaurants, motels and the like. This will then allow drivers to make better decisions about their journeys such as alternate runs or use of services. It could cater for “social recommendation” functionality for the roadside services so one can go to where the food’s known to be good for example.

Support for IP-driven vehicle telemetry

The vehicle could have an Internet-based direct link to the garage that the owner has a working relationship with, or to the fleet-management service in the case of a vehicle that is part of an organisation-owned fleet. This link can allow access to historical diagnostic information about the vehicle thus allowing for informed decisions concerning what repair work needs to be taken or whether the vehicle should be pensioned off.

Similarly, there could be the ability to implement vehicle / driver surveillance techniques which can be of benefit to parents of teenage drivers or organisations who need to keep in step with workplace safety or professional-driver regulations.

In some cases like public and community transportation, it may be desireable to have IP-based closed-circuit TV surveillance that streams the vision “back to base” instead of or as well as recording it to a local hard disk. This will also please the police force where officers are in a “first-response” situation and need “many eyes and many brains working together” on an emergency situation.

Electric vehicles (including hybrid-electric vehicles)

These vehicles will typically benefit from network and Internet connectivity in order to permit flexible power management situations like optimised battery charging or vehicle-to-grid setups. They will also benefit from the above-mentioned IP-driven vehicle telemetry so that the user or preferred mechanic knows if the battery is not holding its charge in the same way that it used to, thus knowing when to have it replaced.

What needs to be done

I would prefer the in-vehicle network to be capable of working as its own network with a 3G or similar-technology WWAN as proposed by the vehicle builders in their implementation or as a member of user-selected WiFi LANs in a client / access-point (WDS) role. This can be determined by a list of “preferred” SSID / WPA(2)-PSK combinations held local to the vehicle.

The “Ethernet behind the dash” concept of using Category 5 Ethernet to create a wired LAN amongst in-vehicle subsystems has to be researched, This includes how Category 5 Ethernet can handle the problems associated with an automotive electrical system which is known to be very noisy or prone to surges and spikes such as while the vehicle’s engine is being started.

Once the concept of the automotive local area network is researched properly, there is the ability to use it as a simple data conduit across vehicle systems for all data-transfer applications, not just for Internet surfing by passengers.