Where to Begin
Review your HDTV’s User’s Manual to determine which type of TV connection is recommended. Generally, it is one of three types:
HDMI to HDMI, HDMI to DVI or Component. HDMI is recommended for the highest-quality video and is the easiest because it includes the audio signal. Based on the recommended connection from your TV manufacturer, locate the appropriate connection diagram on the right. Ensure that you have all of the necessary cables and follow the connection diagram.
Once complete, you will need to set the AT&T U-verse SM receiver aspect ratio to match the settings of your HDTV and your viewing prefer- ence. (see page 2) Generally, HD content is best viewed in its native 16x9 widescreen aspect ratio. Ensure that you have subscribed to AT&T U-verse HD service. If you have not done this, please call 800-ATT-2020 to request this service. Additional detailed information may be found in the AT&T Receiver Manual and Features Guide.
Connect With an HDMI Connector
Some HDTVs have a high-definition multimedia Interface (HDMI) connector. The HDMI connector provides both a digital video and audio connection.
The HDMI connector can also provide a connection to an HDTV with a DVI input. If your HDTV has a Digital Visual Interface (DVI) connector, you will need an HDMI-to-DVI adaptor and you will need to make a separate audio connection.
Note: The DVI port on the TV must support high-bandwidth digital content protection (HDCP).
Cables Used in This Configuration
1 HDMI-to-HDMI cable or
1 HDMI-to-DVI Adaptor, and RCA audio left/right cables
Get pdf Setting Up Your HDTV (High-Definition TV)
Showing posts with label high definition tv. Show all posts
Showing posts with label high definition tv. Show all posts
Tuesday, February 17, 2009
Saturday, February 14, 2009
Experiments with Delivery of HDTV over IP Networks
The conversion of broadcast television from the legacy analog PAL and NTSC standards to digital format has many exciting implications. These include the possible convergence of television distribution and computer network infrastructures, allowing interactive applications, and the increase in quality possible with high definition digital formats.
To date, the different aspects of this convergence have been studied in isolation: there has been much work on the transport of compressed standard definition TV over IP, and much work defining protocols and standards for high definition TV (HDTV), but few have studied the transport of HDTV over IP. In this paper we present our initial experiments with a system to deliver production quality uncompressed HDTV over IP networks.
Why do we chose to deliver uncompressed HDTV? Several reasons, primarily to maintain image quality and reduce latency. This is most useful in a production facility, where image degradation due to repeated compression cycles is undesirable, but may also be appropriate for very high quality telepresence applications. Delivery of compressed HDTV, using existing MPEG-2 over IP standards, may be more appropriate for other applications.
The outline of this paper is as follows: section 2 covers background in HDTV technology, protocols for transport of video over IP networks and network performance. This is followed, in section 3 with a discussion of the options for protocol development, with our design being outlined in section 4. Section 5 provides preliminary performance analysis of our system, demonstrating transmission of HDTV over a wide-area IP network, with section 6 outlining directions for further development. Finally, we summarize related work in section 7, and provide conclusions.
Get pdf download Experiments with Delivery of HDTV over IP Networks
To date, the different aspects of this convergence have been studied in isolation: there has been much work on the transport of compressed standard definition TV over IP, and much work defining protocols and standards for high definition TV (HDTV), but few have studied the transport of HDTV over IP. In this paper we present our initial experiments with a system to deliver production quality uncompressed HDTV over IP networks.
Why do we chose to deliver uncompressed HDTV? Several reasons, primarily to maintain image quality and reduce latency. This is most useful in a production facility, where image degradation due to repeated compression cycles is undesirable, but may also be appropriate for very high quality telepresence applications. Delivery of compressed HDTV, using existing MPEG-2 over IP standards, may be more appropriate for other applications.
The outline of this paper is as follows: section 2 covers background in HDTV technology, protocols for transport of video over IP networks and network performance. This is followed, in section 3 with a discussion of the options for protocol development, with our design being outlined in section 4. Section 5 provides preliminary performance analysis of our system, demonstrating transmission of HDTV over a wide-area IP network, with section 6 outlining directions for further development. Finally, we summarize related work in section 7, and provide conclusions.
Get pdf download Experiments with Delivery of HDTV over IP Networks
Friday, February 13, 2009
Back to Basics: How to Set Up Your new HDTV
So you finally went out and bought a high-definition TV. Congratulations — you’ve joined a growing community of people who’ve switched to the new digital technology. Considering HDTV’s stunningly realistic, widescreen images and Dolby Digital sound, it’s easy to see why more and more home-entertainment enthusiasts would rather have an HDTV than an apprenticeship with Donald Trump.
But because HDTV is relatively new, a lot of people still aren’t aware even of the basics. For example, many don’t know that an “HD-ready” set (a.k.a. an HDTV monitor) needs to be connected to an outboard digital tuner before it can receive any highdefinition shows. Or that just because HDTVs “upconvert” standard TV signals for display in the higher-resolution 720p (progressive-scan) or 1080i (interlaced) format doesn’t mean the programs are true HDTV. To view honest-to-goodness high-def broadcasts, you need the proper equipment, properly connected, and you need a high-def signal. Before delving into the various connection options, let’s review some basic TV-setup considerations. Whether you go with a direct-view, rear-projection, or flat-panel model — or even a front projector — you’ll want to roughly match the screen size to the room so you won’t have to sit too close or too far away to see the whole picture in full detail. A general rule of thumb for comfortable viewing distance is about twice the diagonal screen size (1 1/2 times if you’re using a front projector). For example, if your set has a 40- inch screen measured diagonally, you should sit at least 6 1/2 feet away. Room lighting is also important. For daytime viewing, place the TV where windows can’t shine light onto the screen. And for best nighttime viewing, situate lamps so their reflections don’t appear on the screen.
Get pdf download Back to Basics: How to Set Up Your new HDTV
But because HDTV is relatively new, a lot of people still aren’t aware even of the basics. For example, many don’t know that an “HD-ready” set (a.k.a. an HDTV monitor) needs to be connected to an outboard digital tuner before it can receive any highdefinition shows. Or that just because HDTVs “upconvert” standard TV signals for display in the higher-resolution 720p (progressive-scan) or 1080i (interlaced) format doesn’t mean the programs are true HDTV. To view honest-to-goodness high-def broadcasts, you need the proper equipment, properly connected, and you need a high-def signal. Before delving into the various connection options, let’s review some basic TV-setup considerations. Whether you go with a direct-view, rear-projection, or flat-panel model — or even a front projector — you’ll want to roughly match the screen size to the room so you won’t have to sit too close or too far away to see the whole picture in full detail. A general rule of thumb for comfortable viewing distance is about twice the diagonal screen size (1 1/2 times if you’re using a front projector). For example, if your set has a 40- inch screen measured diagonally, you should sit at least 6 1/2 feet away. Room lighting is also important. For daytime viewing, place the TV where windows can’t shine light onto the screen. And for best nighttime viewing, situate lamps so their reflections don’t appear on the screen.
Get pdf download Back to Basics: How to Set Up Your new HDTV
Wednesday, February 11, 2009
Using Cyclone III FPGAs for Clearer LCD HDTV Implementation
Today's liquid crystal display (LCD) technology has found a great application with high-definition TV (HDTV), but the challenge has been to achieve high resolution, which requires faster data rates. Accelerating data rates require special image processing algorithms to support faster moving video. The industry is confronted with a major problem: how do you implement these algorithms and get a product out to market first, and do it within a known power budget?
To compound the problem, designers need to determine how to reconfigure the image-processing algorithms when the hardware platform connects to different sizes of LCD panels. Larger LCD panels require faster data rates, so the challenge is how to adjust the data rate for the panel size.
Those challenges are easily managed with the new low-cost Cyclone® III FPGA family. Designers can apply image-processing algorithms in Cyclone III FPGAs to convert and map digital video signals onto the display panel. In addition, designers can take advantage of the Cyclone III FPGA's flexibility to reconfigure image-processing algorithms to increase the data rate for larger display panels. Thus, designers can develop a common hardware platform for all of their LCD panels, no matter the size.
Get pdf download Using Cyclone III FPGAs for Clearer LCD HDTV Implementation
To compound the problem, designers need to determine how to reconfigure the image-processing algorithms when the hardware platform connects to different sizes of LCD panels. Larger LCD panels require faster data rates, so the challenge is how to adjust the data rate for the panel size.
Those challenges are easily managed with the new low-cost Cyclone® III FPGA family. Designers can apply image-processing algorithms in Cyclone III FPGAs to convert and map digital video signals onto the display panel. In addition, designers can take advantage of the Cyclone III FPGA's flexibility to reconfigure image-processing algorithms to increase the data rate for larger display panels. Thus, designers can develop a common hardware platform for all of their LCD panels, no matter the size.
Get pdf download Using Cyclone III FPGAs for Clearer LCD HDTV Implementation
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