science

Multivision (television technology)

Multivision (television technology) is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Multivision (television technology) rather than just read about it. In short: MultiVision was one of the earliest implementations of PIP (picture-in-picture) television available for purchase by users, pioneered by engineer George Schnurle III and sold by the San Jose, California-based company Multivision Products Inc. The original MultiVision model was a box that measured 17 inches (43 cm) by 10.5 inches (27 cm) and was 3 inches (7.6 cm) high.

Key takeaways

Multivision (television technology) belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Multivision (television technology) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Multivision (television technology) from memory before moving on to harder problems.

Reference excerpt

MultiVision was one of the earliest implementations of PIP (picture-in-picture) television available for purchase by users, pioneered by engineer George Schnurle III and sold by the San Jose, California-based company Multivision Products Inc. The original MultiVision model was a box that measured 17 inches (43 cm) by 10.5 inches (27 cm) and was 3 inches (7.6 cm) high. It required a VCR 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. 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

Illustrations

Worked examples

Example 1 — a first encounter with Multivision (television technology)

Start with the simplest possible case. Write down what Multivision (television technology) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Multivision (television technology) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Multivision (television technology) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Multivision (television technology)

In research: Multivision (television technology) appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Multivision (television technology) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Multivision (television technology) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Television technology, so understanding it makes those chapters shorter.
In everyday life: Look for Multivision (television technology) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Multivision (television technology) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Multivision (television technology) means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Multivision (television technology) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Multivision (television technology) in simple terms?

Why does Multivision (television technology) matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Multivision (television technology)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Multivision (television technology).