Ringer signal wave shaping circuit

United States of America Patent

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Jun 11, 1985
Grant Date
N/A
app pub date
Oct 24, 1983
filing date
Oct 24, 1983

priority date (Note)
Expired

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Abstract

Improved ringer signal circuitry in a telephone handset modifies the leading edge of the ringer signal envelope causing ringer volume to gradually increase, over a period of time, to its maximum value.

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Patent Owner(s)

Patent Owner	Address
UNIDEN CORPORATION OF AMERICA	6345 CASTLEWAY COURT A CORP OF IN INDIANAPOLIS IN 46250

International Classification(s)

H04M:TELEPHONIC COMMUNICATION

[Classification Symbol]

[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Haynes, James R	Indianapolis, IN	1	7
Stevens, James C	Plainfield, IN	137	7756

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Ringer signal wave shaping circuit

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United States of America Patent

06544643

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PATENT NO	4523058
SERIAL NO	06544643
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06544643

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