MultiVision was one of the earliest implementations of PIP (
picture-in-picture
Picture-in-picture (PiP) is a feature that can be found in television receivers, personal computers and smartphones, consisting of a video stream playing within an inset window, freeing the rest of the screen for other tasks.
For televisions, pic ...
)
television
Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertisin ...
available for purchase by users, pioneered by engineer
George Schnurle III and sold by the
San Jose, California
San Jose, officially San José (; ; ), is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 popul ...
-based company Multivision Products Inc.
The original MultiVision model was a box that measured by and was high. It required a
VCR
A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or other source on a removable, magnetic tape videocassette, and can play back the recording. ...
to operate and used its own
tuner and the VCR to display two television channels. The television antenna was plugged into the MultiVision unit, which was then plugged into the television receiver's antenna input.
Video; Now, An Add-on To Update Your Cherished Old Console
''New York Times'' 10 May 1987 The program selected on the MultiVision tuner was displayed in a small window inserted into the main TV picture at a position selected by the user. It also functioned as a switching device to connect additional peripherals (such as a laserdisc player) and offered audio outputs to connect external speakers and provide stereo sound. For monaural broadcasts and VHS tapes, the device could provide synthesized stereo audio.
The MultiVision 3.1 model was an unusually shaped device, similar in size to the original, that lacked any form of controls on the device itself. It used its own two tuners and/or a VCR and/or other devices to display two video sources at once. The tunerless MultiVision 1.1 model looked virtually identical to the 3.1 except in rear view, and featured 4 composite, plus left and right audio input sets, plus switchable external audio and video processor loops. Both provided composite and left and right audio outputs for TV input.
On the 1.1 and 3.1 models, the audio could be set in sync to either the main source or the PIP or selected independently. The 1.1 model's remote had 12 color-coded buttons, 4 each for the main picture, PIP picture, and audio, and like the 3.1's remote included other buttons for swapping main and inset picture, PIP on/off, PIP size, PIP position, audio sync on or off, mute, and more. Their remotes featured angled output ends, which facilitated accurate button selection whilst reclined.
References
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Television technology