Cordless digital audio headphone

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C379S174000, C455S569100, C455S575100, C455S195100, C455S294000, C455S310000, C455S341000

Reexamination Certificate

active

07146199

ABSTRACT:
A cordless digital audio headphone is disclosed. The headphone includes a pair of earphones connected to a headband. The earphones provide audible signals. The headphone also includes a memory unit positioned on the headband for containing digitally stored audio information. A processor is disposed on the headband, and is coupled to the memory unit for retrieving the digitally stored information from the memory unit. An analog to digital converter receives the digitally stored audio information, and provides the audible signal to the earphones.

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“ASPECAudio-Encoder/-Decoder,” Fraunhofer-Institute for Integrated Circuits 1992 Fraunhofer-Geseilschalt.

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