INFORMATION INPUT DEVICE

An information input device using an electromagnetic near field to input information for an information equipment which a user is carrying. In a keyboard 12, a keycode (an output from a processor 2) is frequency modulated (FSK) by a modulator 5, only necessary carrier component passes through a filt...

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Main Authors TAJIMA, SHIGERU, MATSUSHITA, NOBUYUKI, KARASAWA, HIDENORI, REKIMOTO, JUNICHI, AYATSUKA, YUJI, HASEGAWA, TOTA, SCIAMMARELLA, EDUARDO
Format Patent
LanguageEnglish
French
German
Published 17.05.2006
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION
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Summary:An information input device using an electromagnetic near field to input information for an information equipment which a user is carrying. In a keyboard 12, a keycode (an output from a processor 2) is frequency modulated (FSK) by a modulator 5, only necessary carrier component passes through a filter 6, and then supplied to conductive keytops 4 via a buffer amplifier 7. The supplied signal is received at a preamplifier 10 installed in user's wearable equipment 9 using a surface of a human body and an electromagnetic near field, and then supplied to a wearable computer 11 of the wearable equipment 9 after demodulation.
Bibliography:Application Number: EP20020712373