KEYBOARD SWITCH

PROBLEM TO BE SOLVED: To provide a keyboard switch which does not cause malfunctioning by its switching operation or avoids malfunctioning caused by the outside noises such as a static noise. SOLUTION: A keyboard switch 1, which has a switch 3 and a multiplexer 5 to connect a keyboard 2 to either on...

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Bibliographic Details
Main Author KAKIMOTO AKIHIRO
Format Patent
LanguageEnglish
Published 07.12.2001
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a keyboard switch which does not cause malfunctioning by its switching operation or avoids malfunctioning caused by the outside noises such as a static noise. SOLUTION: A keyboard switch 1, which has a switch 3 and a multiplexer 5 to connect a keyboard 2 to either one of personal computers PC#1 or PC#n by using a switch 3, is provided with a timer 12 to count the predetermined time (Y) exceeding the time (T) from when the PC and the keyboard 2 are turned on until the communication is finished between them, and a switch effect deciding switch 11 which makes the switching made by the switch 3 ineffective until the predetermined time (Y) is over but makes it effective after the predetermined time is over.
Bibliography:Application Number: JP20000155716