PORTABLE TERMINAL DEVICE

PORTABLE TERMINAL DEVICE

PROBLEM TO BE SOLVED: To provide a portable terminal device allowing key input during operation of an I/O device without lowering using efficiency of a power source battery. SOLUTION: In this portable terminal device provided with various kinds of I/O devices 1 and a click sound producing means 4 pr...

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1. Verfasser: OTSUKI TETSUJI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator OTSUKI TETSUJI
description PROBLEM TO BE SOLVED: To provide a portable terminal device allowing key input during operation of an I/O device without lowering using efficiency of a power source battery. SOLUTION: In this portable terminal device provided with various kinds of I/O devices 1 and a click sound producing means 4 producing click sound in a key 7 inputting time and driven by means of a battery 6, a sound controlling means 23 controlling the volume of sound produced from the click sound producing means during the operation of the I/O device is arranged. Even when key input is carried out during the operation of the I/O device, the volume of the click sound is controlled so that a battery voltage is not dropped below the threshold value by a voltage drop accompanying generation of the click sound, and consequently, a usage limit level of the battery voltage can be set low.
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Even when key input is carried out during the operation of the I/O device, the volume of the click sound is controlled so that a battery voltage is not dropped below the threshold value by a voltage drop accompanying generation of the click sound, and consequently, a usage limit level of the battery voltage can be set low.</description><edition>7</edition><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; PHYSICS</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20011207&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001337931A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20011207&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001337931A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OTSUKI TETSUJI</creatorcontrib><title>PORTABLE TERMINAL DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a portable terminal device allowing key input during operation of an I/O device without lowering using efficiency of a power source battery. 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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title PORTABLE TERMINAL DEVICE
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