Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device

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United States of America Patent

PATENT NO 4644106
SERIAL NO

06690720

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An automatic telephone silencer and volume controller having a microprocessor for storing time and volume information and for timely controlling the sound characteristics of a telephone ringer in accordance with the time and volume information stored. The time and volume information may be entered into the microprocessor by a suitable keyboard. Each time entry has associated with it a volume entry so that the telephone will ring at the prescribed volume from that time until the time denoted by the next time entry.

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Patent Owner(s)

  • HITACHI PRINTING SOLUTIONS, LTD.;INVENTA ELECTRONICS CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yeh, Kou-I Taipei, TW 4 22

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