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Encyclopedia > D6 HDTV VTR

D6 HDTV VTR is SMPTE videotape standard. A D6 VTR can record and playback HDTV video uncompressed. The only D6 VTR product is the Philips, now Thomson's Grass Valley's Media Recorder, model DCR 6024, also called the D6 Voodoo VTR. The VTR was a joint project between Philips Digital Video Systems of Germany and Toshiba in Japan. The Tape deck module was designed and made by Philips in Weiterstadt, Germany. (formerly Bosch Fernseh). and the Digital Processor module designed and made by Toshiba. Since there is no compression, after 20 tape copies of multi generations there is no noticeable loss of quality. As a very high-end, costly system only a few were sold to high-end post houses from about 2000 to 2005. The VTR had a Data Record option. The Data Module could record and play back 2k DPX files at 6 frames per second over a HIPPI conection. The VTR could come in a data only model, or with a switch module, so the desk could be used for both video and data recording. The tape deck was also sold stand alone as a Giga Bit Recorder to record and playback raw data. The Society of Motion Picture and Television Engineers or SMPTE (pronounced simptee or sometimes sumptee) is a US professional association of engineers. ... Bottom view of VHS videotape cassette with magnetic tape exposed Videotape is a means of recording images and sound onto magnetic tape as opposed to movie film. ... A video tape recorder (VTR), is a tape recorder that can record video material. ... Look up Record in Wiktionary, the free dictionary. ... Playback could mean: Playback singing, a practice in Bollywood musicals. ... High-definition television (HDTV) means broadcast of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. ... Video (Latin for I see, first person singular present, indicative of videre, to see) is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion. ... This article concerns the media and entertainment company. ... Grass Valley, previously known as Grass Valley Group, is a subsidiary company of the French company Thomson. ... Philips HQ in Amsterdam Koninklijke Philips Electronics N.V. (Royal Philips Electronics N.V.), usually known as Philips, (Euronext: PHIA, NYSE: PHG) is one of the largest electronics companies in the world. ... Weiterstadt is a town in the Darmstadt-Dieburg district, in Hesse, Germany. ... Fernseh // Fernseh is German for Television. ... A digital system is one that uses discrete values (often electrical voltages), especially those representable as binary numbers, or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (ie, as in an analog system). ... Toshiba Corporations headquarters (Center) in Hamamatsucho, Tokyo Toshiba Corporation sales by division for year ending March, 31 2005 Toshiba Corporation ) (TYO: 6502 ) is a multinational high technology electrical and electronics manufacturing firm, headquartered in Tokyo, Japan. ... DPX, the short form of Digital Picture Exchange, is a common file format for digital film work and is an ANSI/SMPTE standard (268M-2003). ... HIPPI (HIgh Performance Parallel Interface) is a computer bus for the attachment of high speed storage devices to supercomputers. ...


Info:

  • Tape format D-6 19 mm tape cassette housing, SMPTE 277/278M
  • The tape cassette housing looks like a D1 or D2 cassette, but these would be rejected by the VTR.
  • Tape is a Metal Particle tape, magnetic tape
  • Scanner diameter 96 mm, a Helical scan
  • Track pitch: 22 um
  • D6 Tape thickness 11 um
  • Head to tape speed ~46 m/s
  • Tape speed ~497 mm/s
  • Records and playback of 1.85 Gb/s uncompressed data!

. Sonys D1 format was the first major professional digital video format, introduced in 1987. ... D2 is a professional digital video tape format created by Ampex and other manufacturers through a standards group of the Society of Motion Picture and Television Engineers (SMPTE) and introduced at the 1988 NAB (National Association of Broadcasters) convention as a lower-cost alternative to the D1 format. ... Compact audio cassette Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. ... The head drum of a Hi-Fi NTSC VHS VCR; three of the six heads face the reader. ...

  • Uses cassette sizes L – M – S
  • Recording time:
    • Small type 8 minutes
    • Med. type 28 minutes
    • Large type 64 minutes
  • Record heads 2 clusters of 8 (0/180) total of 16
  • Play heads 2 clusters of 8 (0/180) Total of 16
  • Erase heads 2 (0/180)
    • Yes, that is a total of 34 heads on the scanner.
  • Video Error correction Reed Solomon code, 2D
  • Longitudinal tracks three: Control track, Timecode and, Audio cue
  • Playback Slow motion +/- ¼ and with a video visible search mode
  • HDTV Video Signal Formats (SMPTE 274M)
    • 1920 x 1080 @ 24p
    • 1920 x 1080 @ 23.97p
    • 1920 x 1080 @ 25p
  • Progressive modes DTV
    • 1920 x 1080 @ 24sF
    • 1920 x 1080 @ 23.97sF
    • 1920 x 1080 @ 25sF ”segmented frame” modes
    • 1920 x 1080 @ 60i
    • 1920 x 1080 @ 59.94i
    • 1920 x 1080 @ 50i 2:1 interlace modes
  • The unit can cross play some formats
  • Quantization:
    • Y-Luminance = 10 Bits 24/25 fr/sec modes and 8 Bits 30 fr/sec modes
    • Chroma = 8 Bits
  • AUDIO:
    • 30 Frames System: 10 Channel, 5 stereo pairs
    • 24/25 Frames System: 12 Channels, 6 stereo pairs
    • Audio standard AES/EBU
    • Sampling frequency 48 KHz
    • Quantization, digital I/O 20 or 24 bits

A recording head is the physical interface between a recording apparatus and a moving recording medium. ... Reed-Solomon error correction is a coding scheme which works by first constructing a polynomial from the data symbols to be transmitted and then sending an over-sampled plot of the polynomial instead of the original symbols themselves. ... Timecode is also the title of a 2000 film directed by Mike Figgis which was shot in one continuous take. ... Audio can mean: Sounding that can be heard. ... The sampling frequency or sampling rate defines the number of samples per second taken from a continuous signal to make a discrete signal. ... Luminance (also called luminosity) is a photometric measure of the density of luminous intensity in a given direction. ... Chrominance (chroma for short) comprises the two components of a television signal that encode color information. ... Generally, quantization is the state of being constrained to a set of discrete values, rather than varying continuously. ... AES is a three-letter abbreviation with multiple meanings, as described below: Advanced Encryption Standard, in cryptography, a standardized block cipher Advanced Encryption Standard process, in cryptography, the process of choosing an algorithm for standardization as AES Aeromedical Evacuation Squadron Aes (album) AES Corporation AES Data Ltd, Canada AES/EBU... The European Broadcasting Union (EBU), known in French as LUnion Européenne de Radio-Télévision (UER), and unrelated to the European Union, was formed February 12, 1950 by 23 broadcasting organizations from Europe and the Mediterranean at a conference in the coastal resort of Torquay in Devon...

See also

D3 is a professional digital video tape format. ... Panasonic D5 HD VTR AJ-HD3700H A Cassette Tape for D5 HD(Medium) D5 is a professional digital video format introduced by Panasonic in 1994. ...

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