Video Disk Control Protocol
- Video Disk Control Protocol
Video Disk Control Protocol (VDCP) is a proprietary communications protocol primarily used to control hard disk video servers for broadcast television. VDCP was originally developed by Louth Automation and is commonly called the "Louth Protocol". At the time it was developed when Hewlett Packard (eventually sold to Pinnacle Systems) and Grass Valley Group were both bringing to market the first of the VideoFile Servers to be used in the broadcast industry. They contacted Louth Automation who then designed the protocol basing it on Sony protocols of both the Sony LMS Storage Device and the Sony VTR. The principal work was carried out by Ken Louth and Stan Becker.
VDCP uses a tightly coupled master-slave methodology. The controlling device takes the initiative in communications between the controlling device (automation) and the controlled device (video disk). VDCP conforms to the Open Systems Interconnection (OSI) reference model.
VDCP is a serial communications protocol based on RS-422. It is derived from the Sony 9-Pin Protocol, an industry-standard protocol for control of professional broadcast VTRs. Full details of the protocol are available from Harris Broadcast, a division of Harris Corporation who acquired Louth in 2000.
In 2001 Harris announced the introduction of NDCP, a TCP/IP-based successor for VDCP. Little information on NDCP is readily available, and thus VDCP has remained the de-facto standard.
External links
* [http://www.broadcast.harris.com Harris Broadcast]
* [http://www.harris.com//view_pressrelease.asp?act=lookup&pr_id=476 NDCP Launch press release]
Wikimedia Foundation.
2010.
Look at other dictionaries:
Video Disk Control Protocol — (VDCP) ist ein Kommunikationsprotokoll das hauptsächlich verwendet wird, um Videoserver im Bereich der Fernsehtechnik zu steuern. VDCP wurde ursprünglich von der Firma Louth Automation entwickelt und wird allgemein auch Louth Protokoll genannt.… … Deutsch Wikipedia
Disk storage — or disc storage is a general category of storage mechanisms, in which data are digitally recorded by various electronic, magnetic, optical, or mechanical methods on a surface layer deposited of one or more planar, round and rotating disks (or… … Wikipedia
Comparison of video player software — This article is about video player software. For a comparison of audio player software, see Comparison of audio player software. For a comparison of hardware device type portable media players, see Comparison of portable media players. The… … Wikipedia
Louth Protokoll — Video Disk Control Protocol (VDCP) ist ein Kommunikationsprotokoll das hauptsächlich verwendet wird, um Videoserver im Bereich der Fernsehtechnik zu steuern. VDCP wurde ursprünglich von der Firma Louth Automation entwickelt und wird allgemein… … Deutsch Wikipedia
VDCP — Video Disk Control Protocol (VDCP) ist ein Kommunikationsprotokoll das hauptsächlich verwendet wird, um Videoserver im Bereich der Fernsehtechnik zu steuern. VDCP wurde ursprünglich von der Firma Louth Automation entwickelt und wird allgemein… … Deutsch Wikipedia
Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] … Wikipedia
Command & Conquer (video game) — This article is about the first Command Conquer video game. For the rest of the series, see Command Conquer. Command Conquer Command and Conquer cover art (Windows 95) Developer(s) Westwood Studios … Wikipedia
DirectX Video Acceleration — (DXVA) is a Microsoft API specification for the Microsoft Windows and Xbox 360 platforms that allows video decoding to be hardware accelerated. The pipeline allows certain CPU intensive operations such as iDCT, motion compensation and… … Wikipedia
Spore (2008 video game) — Spore Spore box art (2008) Developer(s) Maxis Publisher(s) Electronic Arts … Wikipedia
Marathon (video game) — Marathon Marathon s icon Developer(s) Bungie Software … Wikipedia
