VERIFYING A COMMUNICATION CHANNEL BEING OPEN AND USABLE

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United States of America Patent

APP PUB NO 20240333840A1
SERIAL NO

18126710

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method, system and computer program product for verifying a communication channel (e.g., radio channel) being open and usable. A query of one or more dual-tone multi-frequency signals (DTMF signals) is transmitted by a transmitting device (e.g., handheld radio device), such as a transmitting device operated by a first responder, over a communication channel (e.g., radio channel) to a receiving device (e.g., handheld radio device), such as a receiving device operated by a different first responder. Such first responders utilize a “voice grade” channel (frequency range of 300 to 3,000 Hz) to communicate, which is used by the transmitting device to transmit the query of one or more DTMF signals. An acknowledgement of a reception of the query of one or more DTMF signals from the receiving device is received by the transmitting device thereby verifying that the communication channel (e.g., radio channel) is open and usable.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chantz, Hyman David Scarsdale, US 16 26
Lynch, Robert Bedminster, US 16 426
Swift, Elijah Poughkeepsie, US 3 2

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