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Program and System Information Protocol (disingkat PSIP) adalah protokol yang digunakan dalam sistem televisi digital ATSC untuk membawa metadata tentang setiap saluran televisi dalam aliran transportasi MPEG dari stasiun TV dan mempublikasikan informasi tentang program televisi sehingga pemirsa dapat memilih judul program apa dan deskripsi diik...
The Program and System Information Protocol (PSIP) is the MPEG (Moving Picture Experts Group, 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 metadata about each channel ...
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- Communicating Systems
- Types
- Basic Requirements
- Protocol Design
- Protocol Development
- Wire Image
- Ossification
- Taxonomies
- See Also
- References
History
The first use of the term protocol in a modern data-commutation context occurs in April 1967 in a memorandum entitled A Protocol for Use in the NPL Data Communications Network. Under the direction of Donald Davies, who pioneered packet switching at the National Physical Laboratory in the United Kingdom, it was written by Roger Scantleburyand Keith Bartlett. On the ARPANET, the starting point for host-to-host communication in 1969 was the 1822 protocol, written by Bob Kahn, which defined the t...
Concept
The information exchanged between devices through a network or other media is governed by rules and conventions that can be set out in communication protocol specifications. The nature of communication, the actual data exchanged and any state-dependent behaviors, is defined by these specifications. In digital computing systems, the rules can be expressed by algorithms and data structures. Protocols are to communication what algorithms or programming languages are to computations. Operating sy...
There are two types of communication protocols, based on their representation of the content being carried: text-based and binary.
Getting the data across a network is only part of the problem for a protocol. The data received has to be evaluated in the context of the progress of the conversation, so a protocol must include rules describing the context. These kinds of rules are said to express the syntax of the communication. Other rules determine whether the data is meaningfu...
Systems engineering principles have been applied to create a set of common network protocol design principles. The design of complex protocols often involves decomposition into simpler, cooperating protocols. Such a set of cooperating protocols is sometimes called a protocol family or a protocol suite,within a conceptual framework. Communicating sy...
For communication to occur, protocols have to be selected. The rules can be expressed by algorithms and data structures. Hardware and operating system independence is enhanced by expressing the algorithms in a portable programming language. Source independence of the specification provides wider interoperability. Protocol standards are commonly cre...
The wire image of a protocol is the information that a non-participant observer is able to glean from observing the protocol messages, including both information explicitly given meaning by the protocol, but also inferences made by the observer. Unencrypted protocol metadata is one source making up the wire image, and side-channels including packet...
Protocol ossification is the loss of flexibility, extensibility and evolvability of network protocols. This is largely due to middleboxes that are sensitive to the wire image of the protocol, and which can interrupt or interfere with messages that are valid but which the middlebox does not correctly recognize. This is a violation of the end-to-end ...
Classification schemes for protocols usually focus on the domain of use and function. As an example of domain of use, connection-oriented protocols and connectionless protocols are used on connection-oriented networks and connectionless networks respectively. An example of function is a tunneling protocol, which is used to encapsulate packets in a ...
Bibliography
1. Radia Perlman (1999). Interconnections: Bridges, Routers, Switches, and Internetworking Protocols (2nd ed.). Addison-Wesley. ISBN 0-201-63448-1.. In particular Ch. 18 on "network design folklore", which is also available online 2. Gerard J. Holzmann (1991). Design and Validation of Computer Protocols. Prentice Hall. ISBN 0-13-539925-4. 3. Douglas E. Comer (2000). Internetworking with TCP/IP - Principles, Protocols and Architecture (4th ed.). Prentice Hall. ISBN 0-13-018380-6.In particular...
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 metadata about each channel in the broadcast MPEG transport stream of a television station and for ...
The Program and System Information Protocol ( PSIP) is the MPEG 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 metadata about each channel in the broadcast MPEG transport stream of a television station a...
This document provides a set of guidelines for the use and implementation of the ATSC Program and System Information Protocol. The information contained herein applies to broadcasters, network operators, infrastructure manufacturers, and receiver manufacturers. Download A/69:2009, “Program and System Information Protocol Implementation Guidelines for Broadcasters”, approved 25 December 2009.
Protokol Kontrol Transmisi. Protokol Kendali Transmisi atau Transmission Control Protocol ( TCP) adalah suatu protokol yang berada di lapisan transport (baik itu dalam tujuh lapis model referensi OSI atau model DARPA) yang berorientasi sambungan ( connection-oriented) dan dapat diandalkan ( reliable ). TCP dispesifikasikan dalam RFC 793 .
