HOME
ListMoto - W-VHS


--- Advertisement ---



(i)

W- VHS
VHS
is a HDTV analog recording videocassette format created by JVC. The format was originally introduced in 1994 for use with Japan's Hi-Vision, an early analog high-definition television system. In Japan, the letter "W" is often used as shorthand for the English word "double". The recording medium of W- VHS
VHS
is a ½-inch double-coated MP tape stored in a cartridge the same size as VHS. The tape can be used to store 1035i (HD) or 480i (SD) and a double channel of 480i (for storing 3D programs[1]) (SD2) analog signals (but not 480p, 720p or 1080i). The video signal is recorded using a method called "time compression integration" which "records separated component video, luminance and color signals are offset by time in alternating parts of the video track".[2] Because video signals are recorded in component form instead of the color under method used by S-VHS, standard definition image quality for W- VHS
VHS
is typically much higher, due to the lack of noise caused by a chroma sub-carrier. Audio is stored in the VHS
VHS
Hi-Fi
Hi-Fi
or S- VHS
VHS
Digital Audio
Digital Audio
formats. W- VHS
VHS
VCRs can record a standard or high definition video signal via an analog Y/Pb/Pr
Y/Pb/Pr
component interface. Very few devices with this capability exist, possibly due to content copyright restrictions. W- VHS
VHS
has also been used for medical imaging, professional previewing, and broadcasting. Currently, it is very difficult to find either W- VHS
VHS
VCRs or tapes. Because of this scarcity, users have turned to the similar Digital-S (D-9) tape which uses the same kind of metal particle coating. While D-9 tapes are still not that easy to find, they are more available than W- VHS
VHS
tapes in certain regions. JVC
JVC
Professional even recommends the use of them for W-VHS. The running time between W- VHS
VHS
and Digital-S
Digital-S
is not the same; a Digital-S
Digital-S
tape with a length of 64 min is approximately 105 min when used with W-VHS. See also[edit]

D-VHS S-VHS Blu-ray
Blu-ray
Disc

References[edit]

^ What is a 3D theater ^ Quote from JVC
JVC
SR-W5U pdf brochure.

External links[edit]

High Definition Video
Video
Format Guide, with an overview of W-VHS Quadruplex Park vtr formats, with a mention of W-VHS

v t e

Video
Video
storage formats

Videotape

Analog

Quadruplex (1956) VERA (1958) Ampex 2 inch helical VTR (1961) Sony 2 inch helical VTR (1961) Type A (1965) CV-2000 (1965) Akai (1967) U-matic
U-matic
(1969) EIAJ-1
EIAJ-1
(1969) Cartrivision (1972) Philips VCR (1972) V-Cord (1974) VX (1974) Betamax
Betamax
(1975) IVC (1975) Type B (1976) Type C (1976) VHS
VHS
(1976) VK (1977) SVR (1979) Video
Video
2000 (1980) CVC (1980) VHS-C
VHS-C
(1982) M (1982) Betacam
Betacam
(1982) Video8 (1985) MII (1986) S- VHS
VHS
(1987) S- VHS-C
VHS-C
(1987) Hi8 (1989) Ruvi (1998)

Digital

D1 (1986) D2 (1988) D3 (1991) DCT (1992) Digital Betacam
Betacam
(1993) D5 (1994) Digital-S
Digital-S
(D9) (1995) Betacam
Betacam
SX (1996) Digital8
Digital8
(1999) MicroMV
MicroMV
(2001)

High Definition

Sony HDVS
Sony HDVS
(1984) UniHi (1984) W- VHS
VHS
(1994) HDCAM
HDCAM
(1997) D- VHS
VHS
(1998) D6 HDTV VTR (2000) HDV
HDV
(2003) HDCAM
HDCAM
SR (2003)

Videodisc

Analog

Phonovision (1927) Ampex-HS (1967) TeD (1975) LaserDisc
LaserDisc
(1978) CED (1981) VHD (1983) Laserfilm
Laserfilm
(1984) CD Video
Video
(1987) VSD (c. 1987)

Digital

VCD (1993) MovieCD
MovieCD
(1996) DVD
DVD
(1996) Mini DVD
DVD
(c. 1996) DVD- Video
Video
(1997) CVD (1998) SVCD (1998) EVD (2003) PVD (Personal Video
Video
Disc) (2003) HVD (High-Definition Versatile Disc) (2004) UMD (2004) FVD (2005)

High Definition

MUSE Hi-Vision LD (1994) VMD (2006) HD DVD
DVD
(2006) BRD (BD/ Blu-ray
Blu-ray
disc) (2006) MiniBD (c. 2006) HVD (Holographic Versatile Disc) (2007) CBHD (China Blue High-definition Disc) (2008) UHD BRD (Ultra HD Blu-ray
Blu-ray
disc) (2016)

Virtual

Media agnostic

DV (1995) DVCPRO (1995) DVCAM (1996) DVCPRO50 (1997) DVCPRO HD (2000)

Tapeless

CamCutter Editcam (1995) XDCAM
XDCAM
(2003) MOD (2005) AVCHD
AVCHD
(2006) AVC-Intra (2006) TOD (2007) iFrame (2009) XAVC (2012)

Solid state

P2 (2004) SxS (2007) MicroP2
MicroP2
(2012)

Video
Video
recorded to film

Kinescope
Kinescope
(1947) Telerecording
Telerecording
(1940s) Electronicam
Electronicam
kinescope (1950s) Electronic Video
Video
Recording (1967)

v t e

High-definition (HD)

Concepts

High-definition television High-definition video Ultra-high-definition television

Analog broadcast (All defunct)

819 line system HD MAC MUSE (Hi-Vision)

Digital broadcast

ATSC DMB-T/H DVB ISDB SBTVD

Audio

Dolby Digital Surround sound DSD DXD DTS

Filming and storage

DCI HDV

HD media and compression

Blu-ray CBHD D-VHS DVD-Audio H.264 H.265 HD DVD HD VMD MPEG-2 MVC Super Audio CD Ultra HD Blu-ray Uncompressed VC-1

Connectors

Component DisplayPort DVI HDMI VGA

Deployments

List of digital television deployments by country

v t e

High definition media

Media formats

Blu-ray China Blue High-definition Disc (CBHD) D-VHS HD DVD Holographic Versatile Disc Ultra HD Blu-ray

Promoter

Blu-ray Disc
Blu-ray Disc
Association China High-definition DVD
DVD
Industry Association HD DVD
DVD
Promotion Group HVD Forum

Interactivity

Advanced Content BD-Java

Recordable formats

BD-R BD-RE HD DVD-R HD DVD-RAM HD DVD-RW

Comparison

Comparison of high definition optical disc formats

Copy prevention

AACS (BD, FVD, and HD DVD) BD+ (BD) HDCP (BD and HD DVD) ROM Mark (BD) Cinavia (BD)

Blu-ray
Blu-ray
players

TotalMedia Theatre CyberLink PowerDVD PlayStation 3 Sony BDP-S1 PlayStation 4 Xbox One

HD DVD
DVD
players

Xbox 360 HD DVD
DVD
Drive

This article about television technology is a stub. You can help by expandi

.

Time at 25448101.816667, Busy percent: 30
***************** NOT Too Busy at 25448101.816667 3../logs/periodic-service_log.txt
1440 = task['interval'];
25448308.766667 = task['next-exec'];
25446868.766667 = task['last-exec'];
daily-work.php = task['exec'];
25448101.816667 Time.

10080 = task['interval'];
25456948.85 = task['next-exec'];
25446868.85 = task['last-exec'];
weekly-work.php = task['exec'];
25448101.816667 Time.

1440 = task['interval'];
25448308.883333 = task['next-exec'];
25446868.883333 = task['last-exec'];
PeriodicStats.php = task['exec'];
25448101.816667 Time.

1440 = task['interval'];
25448308.883333 = task['next-exec'];
25446868.883333 = task['last-exec'];
PeriodicBuild.php = task['exec'];
25448101.816667 Time.

1440 = task['interval'];
25448308.883333 = task['next-exec'];
25446868.883333 = task['last-exec'];
cleanup.php = task['exec'];
25448101.816667 Time.

1440 = task['interval'];
25448309 = task['next-exec'];
25446869 = task['last-exec'];
build-sitemap-xml.php = task['exec'];
25448101.816667 Time.