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Rabu, 28 Maret 2012

Conference TV Network Technology Comparison and Analysis

With the information and communication network in China's sustained and rapid development, the current level of our communication has greatly improved the exchange of information for businesses and industries provide a reliable guarantee. In many communication services, meeting more and more TV shows good momentum of development. Video Conference is a benefit Electricity As the technology and equipment, through a communications network meetings multimedia communications. When the video conference held, in two or more different locations of the participants, not only can hear each other's voices, and can see each other's image, while the other room to see a scene and displayed at the meeting physical, pictures, forms, documents, etc., "shortened" the distance between the participants and enhance the atmosphere of the meeting, so we like to participate in the meeting in one place, significantly enhancing efficiency. 

Our public meetings through public meetings television business is the backbone network television achieved. Backbone network from the public meetings television conference terminal equipment (including codecs), Digital Channel ( Cable , Satellite), multi-point control device (MCU) form. Thus, the meeting venue and communications television system by the transmission channel composition. Video conference system is usually divided into the main hall of the venue and the sub-venues, the main venue for the conference system's control center, the main control device, image or sound distribution and switching equipment are configured in the main venue. Video conference system of communication commonly used fiber optic cable transmission channel (known as ground-conference system), satellite (known as satellite video conference system) and cable and satellite channels and use (known as hybrid video conference system). Its main role is to be the main venue for the live video signals, voice signals and the user's data signal acquisition, compression, multiplexing is sent to channel. Meanwhile, the channel received from the conference television signals to demultiplex, video and audio decoding, restore the venue of the video component, audio signals and data signals. 

Most current broadband intelligent network, IP technology, ATM network video conferencing capabilities, the following three areas are discussed in this narrative. Intelligent network-based broadband network in the two programs In the broadband intelligent network TV, there are two options to achieve the meeting: Add-on Type TV and Meet-me Conference Type Conference TV. Add-on type session, requested the meeting coordinator television (CFC) to join, CFC by a participant to act as. CFC has the following privileges: the list of participants for input; responsible for activation of the Conference Television; the right to release the business; responsible for supervision of all participants; any time the right to exclude participants. Add-on-based video conference needs the support of SNR, SNR in Package With two broadband intelligent network (BIN) feature entities: Broadband - Service Switching Function (B-SSF) and broadband - Special Resource Function (B-SRF). Meet-me type not videoconference CFC intervention. This type of meeting is equivalent to an open forum, participants can open and free exchange. Most of the meeting by a special network element functions?? Server ?? Completed. Comparing the above two programs known, Meet-me type the required information flow videoconferencing less easy to achieve; Add-on based videoconferencing needs the support of SNR, the control process is complex, requiring more and more information flow, but more flexible conference control. Integrated Intelligent Network and broadband multimedia services to a variety of architecture provides a unified, so that multimedia services become more flexible and convenient.

Network based on IP technology prospects As the rapid development of Internet in the world, IP applications have become a trend. Can make use of the Chinese public in China have built multi-media networks to build IP-based videoconferencing systems across provinces (also available across the country Internet TV conference system, but under the current export of China's Internet bandwidth is inadequate constraints). Head office and branch offices around the nearest access to the local communication network, recommend the use of ADSL access mode or wireless spread spectrum access, rate of 1Mbps ~ 2Mbps, with data communications network to share the same network line, line of low cost, monthly fee also low. However, IP-based real-time communication is not guaranteed QoS, while communication network can not guarantee at all times have enough bandwidth available, so the quality of both image quality and sound effects. In short IP-based videoconferencing system is a promising direction of development. ATM-based network can provide QoS network ATM technology as the biggest feature is a QoS guarantee, as long as the increase in the existing ATM Internet access ATM25M Switch V-Switch, the same time, as long as the increase in ISDN videoconferencing gateway device V-Gate, can be realized based on ATM-based ISDN videoconferencing systems and interoperability of Video Conference System. 

Features of this program is a very good image quality (up to MPEG image quality), Zu Wangfang it (not all video conference terminals to the MCU on the line all together), and high reliability. However, the high cost of equipment, and the ATM network should be. In summary, three methods have different features, broadband intelligent network method can break through the limitations of the existing ATM network, ATM network is very easy to complete the video conference can accomplish some of the features; achieve media control of information transfer and business separation, the system has good compatibility and scalability. Trend from the network technology, IP technology is the development of multimedia networks, in particular IPv6 Technology further extends the IP address space, a dynamic distribution network address and support the real-time business functions, enhanced IP layer security mechanism. ATM port speed with high throughput, latency, connection-oriented, and many other advanced features, and can meet the needs of multimedia communications. Which way to achieve the specific use of video conference system, to consider how to improve the efficiency and management and reduce administrative costs, it is necessary to consider the practical needs and current situation of the national network infrastructure, but also consider future scalability.

Jumat, 24 Februari 2012

Latest in TV and Internet Technology

Because of the millions of people who are now going online to watch TV and movies, television manufacturers have developed a new kind of TV – one which combines online entertainment with the TV screen.The Internet TV is a home cinema or home theater system which can give the fantastic video and sound experience searched for by many who love cable and go online to watch their favorite shows. With this new technology that combines the TV and the internet in one, this all in one product includes a Wifi and Blue Ray Disc player which can also access the internet directly into the TV itself.In the past, well as of two or three months ago kind of past, there was a need to attach the pc to the TV to be able to watch the online TV shows and movies. 

But with this, there is no need to have that pc; this can instantly access the online TV through the broadband connection. The remote control makes everything easily accessible and there is even an on screen menu. All the user or viewer has to do is to sit back click and instantly get the movies and shows they want. There is even no need for any TV guides for the schedule of the shows; all of the shows can be accessed anytime. For those who are only interest in live streaming, there are no worries either. This new technology can get you to that favorite site where you can watch the shows streaming in so there is no need to download anything. This way you can access all there is to access from online TV websites as well as catch up with the live shows like football games and soccer.There is a plus too, the Internet TV can access You Tube and Daily Motion sites. This means that you can access any show that you want, watch any show when you want to, and still enjoy the benefit of experiencing the cinema-like ambiance. 

Movie nights or Friday nights, nothing can beat this new technology which has just made everything so much easier and easily accessible.This also means no need for the subscription of satellite TVs. This works on Broadband so the internet is fast, super fast guaranteeing that there would be no lost signal and if you need to open you laptop to work while watching TV, this is possible as well. Did we mention it also works on wifi? That means any number of computers can hook up without disrupting the signal of the TV. Now that is just one piece of a more improved technology.

The new 43 Inch LED TV Technology

It was not too long ago when deciding which TV to buy meant choosing between plasma and LCD TVs. These days, a newer technology has emerged and is gaining a strong foothold in the TV market: the 42" LED TV.LED is acronym for light emitting diodes. This is the backlighting technology in 42" LEDs responsible for their very high contrast ratios, true blacks and brighter colors-characteristics that give them an edge over standard LCD TVs. It is the technology responsible for the longer lifespan and more efficient energy use of 42" LEDs, making them better than plasma TVs.After LED, the most advanced TV technology is OLED, which stands for organic light-emitting diodes. 

OLEDs do not require a backlight to function; instead, a thin organic film is directly transferred to the surface using a simple printing mechanism. There are OLED TVs out in the market today, and they are stunningly thin and have unsurpassed picture quality. However, their prices will also cause one to do a double take. This makes OLED TVs an impractical choice for most people, even though they are first-rate in the technology department.All things considered, the top choice then becomes the 42" LEDs. These dominate in terms of picture quality, energy efficiency, lifespan and dimensions.Compared to standard LCD TVs, 42" LED TVs give better pictures overall. They have deeper blacks, higher contrast ratios and more vivid colors. They also deliver better viewing angles, and are longer-lasting.In terms of energy consumption, 42" LED TVs are the most efficient, easily beating both LCD and plasma TVs.And last but not least, what is so fascinating for many people about 42" LED TVs is how slim and light they are. Some 42" LED TVs are only an inch thin, therefore easy to handle, move around, or mount in walls.One of the best additions possible to any room in a house is a 42" LED TV. 

This can be hung on a wall because of its thin and light dimensions, or placed on a piece of furniture in the more traditional way. A 42" TV is best viewed from a distance of 5 feet to 10 feet. This is easily feasible in most rooms, including a small bedroom or a more spacious living room. However and wherever it is placed, a 42" TV is sure to provide the best viewing experience. With its perfect color contrast and saturation, it gives brilliant, accurate and vivid pictures. Also more energy-efficient, it is decidedly better than plasma and standard LCD TVs.The better picture quality of a 42" LED TV is made possible by its unique, advanced lighting technology. It uses LEDs or light emitting diodes. These are more sophisticated than the CCFLs or cold cathode fluorescent lights used in standard LCD TVs. The picture in LCD TVs suffers in the contrast department; deep and realistic blacks are absent, and color saturation is imperfect. With LED technology, these deficiencies are non-existent. The viewer always gets the perfect picture: vivid, vibrant and realistic, with stunning colors that seem to jump right out of the screen.Consumers making their first purchase of a big-screen TV sometimes find it difficult to decide. There are many types, brands and models to choose from, and considering all of these can be confusing. To simplify things, just consider a 42" LED TV. It simply has the best picture. Enough said.

The Technology and the Biology behind 3D TV

We all have memories of early 3D TV, its primitive technology seemed to induce a somewhat nauseating experience, something that the coloured spectacles only aggravated further. Nowadays new technology has been brought to bear in doing away with most of the downsides to old-fashioned 3D TV, with major electronics companies betting on the resurgence of 3D TV and working furiously to produce newer and better technology.And it seems that they are right with Hollywood having truly resurrected 3D TV, with animated movies such as 'Beowulf', 'Up' and of course the truly spectacular 'Avatar', audiences all around the world have fallen in love with the 3D experience.

We perceive the real world in three dimensions so why should we settle for just two when it comes to entertainment?So how does this new technology work? Well before understanding this we must first take a look at ourselves and consider our biological make-up. So why do we perceive the world in 3D? In truth there is one simple reason for this; because we have two eyes that are both forward-facing, (binocular vision). Our eyes are about three inches apart, as a result of this each one perceives a different image.Alternating between looking through one eye and then the other is the easiest way to experience this first-hand. Though each eye sees a similar image there are still small differences in perspective; this is referred to as parallax and is crucial for us to perceive depth. The human brain receives these two images simultaneously and combines them allowing us to perceive depth or distance. To take this one step further, consider what happens when you perceive an object that is close to your face with one eye and then the other.

The object is subject to a larger shift in perspective when it is closer to you, and when it is further away this shift is smaller. So here we can gain an insight into just how the brain perceives depth from these visual cues.There are numerous ways of creating the illusion of 3D TV, all of which rely on exploiting the way in which we perceive depth. Firstly there was colour filter 3D TV; this used colour filter glasses, each eyepiece with different coloured film. The film is composed of two overlapping images in different colour tints such that each eye is only able to view one of these two overlapping images. Secondly there were polarised glasses; this is the technology of choice when it comes to commercial 3D projectors. The polarisation of light allows us to selectively screen out light based on its polarisation by using a material called polarizing films. Later methods include active shutter glasses and autostereoscopy, which does not require glasses. Both of these methods use similar principles, shutter glasses causing each eye to see particular images, and autostereoscopy relying on special optical elements to ensure that each eye receives a different image.

Selasa, 31 Januari 2012

Make the Most at Home with Superb TV Technology

With TVs today being more advanced and including more features l than ever, it can be quite a difficult decision to find one that is right for you and at the right price. TVs vary so much these days in price and the features integrated into each one, so it really is essential to weigh up the pros and cons of the different types to make the most out of a TV you buy. One of the most popular and main types of TV that is available out there on the market at the moment is a LCD technology or Liquid Crystal Display in its full name. 

These TV sets are currently the most commonly bought, especially for the sizes less than 40 inches. LCD TVs uses a backlight, which shines through coloured pixels to send the image out into a room; they usually tend to be very slim and light, making it much easier to mount to weaker walls than their heavier counterparts.The second most popular type of television available to buy is Plasma technology, which instead of a backlight projecting the image out, each pixel on the screen emits light, even if the pixels are turned off. Plasma sets are typically heavier and more expensive than LCDs, but there are constant arguments as to whether they are better or worst in terms of colour and contrast compared to their rivals. It really depends on what type of picture the individual prefers when it comes to choosing between the two technologies as they both are very similar. 

Plasma displays tend to have a slightly faster response time than LCD, which might appeal much more too passionate gamers out there; however LCD is quickly closing this gap. One development that is quickly in demand and being added to new TVs out there is Smart TV technology. Smart TVs act like large versions of smart phones basically letting you connect to the internet through wi-fi, giving users access to the World Wide Web and millions of free content, apps and movies. These types of TVs are slowly drifting into homes all over the country and it won’t be unusual to see them as the standard home TV set up over the next decade. You can use smart TVs to play downloaded videos or display photos through a USB, stream digital music and even play many online games without having to connect a console. They will let users check their emails, social networking and even their bank account through their TV rather than having to switch to your home computer to browse online.

Tv On The Net

Internet or online TV is a new technology that enables your computer to receive live TV feeds from free to air TV networks around the world. Web TV is offered for free and can be accessed anywhere in the world provided you have an internet connection and an already downloaded software.TV channel can now be broadcast over the internet following a series of research work on how to continuous stream TV movies over the internet. What has been the biggest handicap to developing internet TV is the large amount of space needed to transfer video files online. Yet, you can watch live TV online for free. For that, you need to buy downloadable software that tunes you to thousands of satellite channels worldwide. 

Alright, this way is not completely free, but once the software is installed, you will never have to pay again. A small one-time fee is completely worth tons of live channels on your computer - those include live sports, TV shows, movies, non-stop music channels, and nearly anything you can think of.If you have ever thought about how you can save money then you need to find out more information about this new technology that is taking storm. Many cable TV subscribers are switching to this method because it is more affordable than the old way of watching TV and offers a lot more channels. If you have been looking into the possibility of being able to get PC television then visit our website below. It is filled with useful information on the company that we recommend. It will also answer any questions that you may have about the service.

Television pc software provides viewers with the flexibility to watch live satellite channels anywhere in the world where there is internet broadband connection. Of course, some software will work on dial up but the audio and video performance will be affected as a result. Therefore, many times the performance of the software is dictated by the connection speed of the users' PCs or laptops. As the software will work with wireless connection, it means that one can be sitting in a café and enjoying his or her favorite show. That is one major reason why people go for PC TV software.The main advantages of using this kind of devices are convenience, flexibility and cost savings. It is convenient because you don't have to run long wires around the house to connect between the video source and the video display. It is flexible because the wireless receiver can be moved around easily, with no need to install new wires or re-route old ones. It saves money because you don't have to buy extra devices such as a second cable box or a second DVD player in order to watch video in a second room.

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