computer science

Penveu

Penveu is a computer 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 Penveu rather than just read about it. In short: The penveu is a pen-like device developed by the American company, Interphase, for use with digital audio-visual presentations. History In 1991, SMART Technologies introduced an Interactive Whiteboard, on which the image from a projector was displayed.

Key takeaways

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

Reference excerpt

The penveu is a pen-like device developed by the American company, Interphase, for use with digital audio-visual presentations.

History In 1991, SMART Technologies introduced an Interactive Whiteboard, on which the image from a projector was displayed. A USB connection allowed the presenter to virtually interact with the projection. Other after-market products aimed at working with existing projectors (Mimio and eBeam) came out after that. Interphase Corporation (Nasdaq: INPH) was founded in 1974, and filed for initial public offering in 1984. In 2010, penveu was invented. The company developed and tested the concepts for two years until unveiling the product at the DEMO conference in Santa Clara, California, on April 18, 2012. On May 30, 2014, the product was released to the market. Since the product is made of two electronic boards (one in the handheld pen and one in the base station), the engineering department named those two boards the PEN and the VEU (video enhancement unit). PENVEU became the name of the device. On September 30, 2015, Interphase Corporation announced it had ceased operations and commenced bankruptcy proceedings.

Technology The core of the penveu technology surrounds a camera located near the tip of the pen but implemented in two parts of the penveu system: the PEN, and the VEU. The VEU box intercepts the display to add visual targets that include information on its position encoded using a change in brightness. A digital signal processor (DSP) in the pen calculates the position of the tip based on the information retrieved from the targets detected. Since the positioning target system is included in the modified video signal, penveu may not require calibration.

Awards Penveu received several awards since its introduction into the market, including the "Best of InfoComm 2012", the 2014 "Innovations in Design and Engineering" award and the International Society for Technology in Education (ISTE) inaugural Best of Show" award.

References

Illustrations

Worked examples

Example 1 — a first encounter with Penveu

Start with the simplest possible case. Write down what Penveu claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer 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 Penveu 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 Penveu 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 Penveu

In research: Penveu appears in computer 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 Penveu 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: Penveu is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computing input devices, Display technology, Educational technology companies of the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Penveu 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 Penveu in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Penveu 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 Penveu out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Penveu in simple terms?

The penveu is a pen-like device developed by the American company, Interphase, for use with digital audio-visual presentations. History In 1991, SMART Technologies introduced an Interactive Whiteboard, on which the image from a projector was displayed.

Why does Penveu matter?

Because it connects several computer 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 Penveu?

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 Penveu.