Seeing is believing

16th December 1994 at 00:00
A former design and technology teacher has set up a firm specialising in three-dimensional technology. Jack Ezra's company, 3D Video Plus has invented a device that can record two channels simultaneously on a single video recorder.

The two-channel "multiplexer" works by decoding the signals from two television channels and cramming them into one, which is then recorded on to one tape. When the tape is played back, the signal carrying both recordings is separated into two channels, either of which can be selected by the viewer.

According to Ezra, British companies "threw the device back across the desk at me. But I did think I was getting somewhere when one company paid me hush money not to talk about it."

In spite of these early setbacks, Japanese engineers have pledged to market the device, which also enables users to record over an existing programme without erasing it.

Models could be on sale in Britain next year, or installed in the next generation of video recorders.

3D Video Plus, 2 The Old House, 36 Southend Road, Beckenham, Kent BR3 2AA

Subscribe to get access to the content on this page.

If you are already a Tes/ Tes Scotland subscriber please log in with your username or email address to get full access to our back issues, CPD library and membership plus page.

Not a subscriber? Find out more about our subscription offers.
Subscribe now
Existing subscriber?
Enter subscription number


The guide by your side – ensuring you are always up to date with the latest in education.

Get Tes magazine online and delivered to your door. Stay up to date with the latest research, teacher innovation and insight, plus classroom tips and techniques with a Tes magazine subscription.
With a Tes magazine subscription you get exclusive access to our CPD library. Including our New Teachers’ special for NQTS, Ed Tech, How to Get a Job, Trip Planner, Ed Biz Special and all Tes back issues.

Subscribe now