keystoning

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keystoning

[′kē‚stōn·iŋ]
(electronics)
Producing a keystone-shaped (wider at the top than at the bottom, or vice versa) scanning pattern because the electron beam in the television camera tube is at an angle with the principal axis of the tube.
References in periodicals archive ?
Other new features include 4-point Keystone correction, MPEG4 files played back from a USB drive, and WPA2-Enterprise security.
In addition to LCOS Technology, consistent brightness and vertical lens shift, the WUX500 projector is engineered with many other advanced features and functions, including built-in Edge Blending, 4-Point Keystone Correction, Picture by Picture, and Versatile Connectivity and Network Management.
The EH-TW550 is also quick and simple to set up, thanks to its manual horizontal slider and automatic vertical keystone correction.
An Auto Keystone Correction feature detects the P1's orientation and corrects distorted trapezoid images.
control, vertical keystone correction is automatic and horizontal keystone can
In those situations where the projector must be tilted, Auto Keystone Correction makes the required adjustment at the touch of a button, ensuring a perfectly square image.
This model also provides a variety of connectivity options including HDMI, as well as automatic vertical keystone correction, input source naming, quick start and instant off functions, and closed-captioning.
The TDP-SW25U incorporates user-friendly features, including one-touch auto set-up, keystone correction and a fully loaded remote control for seamless, professional presentations.
Additional features include automatic keystone correction, an HDMI port for high definition sources, USB flash drive and SD card ports for photo slideshow functionality without the need for a computer, and a built-in 7W speaker.
Both the EPSON EMP-765 and EMP-760 also feature a lamp life of up to 3000 hours and include height adjustment and automatic keystone correction for set-up.
In addition, the unit has digital keystone correction allowing for distortion-free projection, and under 37dBA whisper-quiet operating mode for small meeting environments.
Toshiba's TDP-WX5400U also offers the following leading-edge technologies: dual-lamps, an optional interchangeable color wheel, wide resolution, five optional lenses, automatic vertical and horizontal keystone correction, filter-free design, enhanced security features and extensive connectivity options.

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