Importance

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Abstract

A communications system provides for the location or tracking of persons or objects to automatically establish two-way conversation with the person located via an associated intercom or telephone system. The locating system provides each person or object to be located with an infrared pulse transmitter which operates continuously automatically and repetitively. It requires no action on the part of the person being monitored. The system is cost effective and accurate by reason of the infrared pulse code utilized. It includes a relatively short pulse width for low power consumption, a pulse code which has error detecting bits, and use of a high pulse output power to distinguish over ambient noise.

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First Claim