Questions and Answers
Which of the following is the most common problem with keyboards?
What is keybounce?
How long does keybounce usually last?
What is the solution to address keybounce?
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What are the two main techniques used to resolve the problem of multiple key presses?
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What is n-key rollover?
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What is n-key lock-out?
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What is the significant cost of n-key rollover protection?
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What is the 'phantom key' problem?
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What is the simplest and most often used method for n-key lock-out?
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What is the effect of implementing n-key rollover protection without a diode in series with every key?
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What is the solution to the 'phantom key' problem?
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Which of the following is the most common problem with keyboards?
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What is keybounce?
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How long does keybounce usually last?
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What is the solution to address keybounce?
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What are the two main techniques used to resolve the problem of multiple key presses?
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What is n-key rollover?
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What is n-key lock-out?
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What is the significant cost of n-key rollover protection?
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What is the 'phantom key' problem?
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What is the simplest and most often used method for n-key lock-out?
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What is the effect of implementing n-key rollover protection without a diode in series with every key?
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What is the solution to the 'phantom key' problem?
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Which type of key press detection technique ignores all key closures until only one key closure is detected?
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What is keybounce?
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What is the duration of keybounce?
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What is the solution to keybounce?
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What is the purpose of the n-key lockout technique?
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What is the phantom key problem?
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What is the duration of the delay mechanism used in the second method of n-key rollover?
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What is the purpose of the R-C filter used in hardware filtering?
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What is the main difference between the two techniques used to resolve the multiple key press problem?
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What is the effect of pressing three adjacent keys at a right angle?
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What is the most common problem in keyboard interfacing?
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