ATSC Program and System Information Protocol (PSIP). The ATSC Program and System Information Protocol (PSIP) is specified in standards document A/ Once you buy an HDTV it doesn’t take long before you get confused by all the acronyms. We love us some HD, but the days of simply bringing. information in the ATSC PSIP standard, system information and program information. System information allows navi- gation and access to the channels within.

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What this really means is that everyone gets their own dedicated channel. The primary purpose of PSIP is to facilitate acquisition and navigation among the digital services available to a particular receiver or set-top-box. And just like AM Radio Amplitude modulation wasn’t as good as FM Radio Frequency modulationtechnology continues to evolve and thus we discover more efficient ways to modulate data. PSIP Pro is the system of choice by television station broadcasters asc are looking for a proven system at an affordable entry level price.

HD What is ATSC, PSIP, QAM, and 8-VSB?

PSIP Pro has the capability to import information about the audio and video services directly from the encoding system and insert them automatically into PSIP tables. Tired of Tasc complicated answers when you asked for a simple explanation?

Now before we get into specific broadcasting encoding methods used for over-the-air TV, cable, and satellite; lets cover something that can be a little difficult for internet geeks to understand. October Learn how and when to remove this template message.

Please help to improve this article by introducing more precise citations. Views Read Edit View history. The bad news is that there isn’t any guarantee that your TV will be able pssip find all the channels. Once you buy an HDTV it doesn’t take long before you get confused by all the acronyms. This page was last afsc on 3 Aprilat By using this site, you agree to the Terms of Use and Privacy Policy.

This enabled the broadcasters to send specific data like programming information, but more importantly it supports psi mapping information. Articles lacking in-text citations from October All articles lacking in-text citations. The Program and System Information Protocol PSIP is the MPEG a video and audio industry group and privately defined program-specific information originally defined by General Instrument for the DigiCipher 2 system and later extended for the ATSC digital television system for carrying pxip about each channel in the broadcast MPEG transport stream of a television station and for publishing information about television programs so that viewers can select what to watch by title and description.


The real problem with QAM — no fault of it’s own though — is that when a cable operator uses QAM, it can also inexpensively encrypt the signal, which is why you might have heard about clear QAM. Broadband Typical for the tech industry that the term broadband isn’t exactly used correctly, but it’s probably more fair to say that word just change atwc as the technologies evolves. Unlike the internet where all the data is broken up into little packets atsx sent across the same shared pipe, digital TV is more like a traditional phone system.

It allows for the generation and management psjp schedules and contains advanced capabilities and a user-friendly graphic interface at a cost-effective, entry level price. One way they do this is by putting multiple HD streams on one channel. Users have the flexibility to customize the output by setting the number afsc days of program schedules to be sent and cycle times for various PSIP tables. Another topic that is useful to understand is the differences between encoding video vs encoding bits.

Where are pxip adults. Recently operators have been giving out a ” tuning adapter ” which enables one-way CableCARD host devices to work with SDV, but this is all pretty new and Microsoft has yet to even support it — although we fully expect support in Windows 7. So the operators deploy a technology called statistical multiplexing to try to dynamically atdc enough throughput to each stream. The cable provider’s STBs don’t have the channel mapping problem because they have access to a virtual channel table.

Retrieved from ” https: Got a basic HD topic that you’d love for us to explain?

HD 101: What is ATSC, PSIP, QAM, and 8-VSB?

PMCP does not dictate systems’ paip database structures; it is simply a platform-independent protocol for the exchange of data. TV Guide On Screen is spip different, proprietary system provided by datacasting on a single station, while PSIP is required, at least in the United States, to be sent by every digital television station.

And of course QAM doesn’t evolve overnight, so operators have to find new ways to make more efficient use of the bandwidth currently available. American broadcast television Template: In fact encoding just means transforming information into different formats, but more importantly, in order to send these bits across a wire or through the air, they must be modulated.


There is one station at Two revisions largely backwards-compatible with the standard have been made. This isn’t really a problem when you take two PSIP Pro has a comprehensive and easy-to-use interface pzip allows generation, editing, navigation, and searching of digital television program schedules. Digital television in North America.

The theory is that none of the streams will need all the bandwidth at the same time. The key here is to realize that when you do a channel scan your TV will automatically know that when it discovers channel 24, that you expect to find this station at channel It describes information at the system and event levels for all virtual channels carried in a particular transport stream and to allow program schedule information to be displayed on ATSC-compatible digital TV receivers.

Unfortunately in practice this isn’t the case, and our beautiful HD turns into block city. We love us some HD, but the days of simply bringing a new set home and plugging into a coax cable are long over — at least for most. Encoding video vs encoding bits and modulation Another topic that is useful to understand is the differences between encoding video vs encoding bits. Typical for the tech industry that the term broadband isn’t exactly used correctly, but it’s probably more fair to say that word just change meanings as the technologies evolves.

Advanced functions such as recurring events, default event, search event gaps, search event overlap and event over run control are provided to minimize user input. So even if channel 10 is off the air, channel 12 can’t use the throughput.

ATSC Program and System Information Protocol (PSIP)

The good news is that while technology continues to change, due to compatibility reasons these technologies evolve slowly. From around the web. Retrieved 24 March PSIP defines virtual channels and content ratingsas well as electronic program guides ;sip titles and optionally descriptions to be decoded and displayed by the ATSC tuner.