4. Coded data generation or conversion
  5. Analog to digital conversion followed by digital to analog...

Richard J. Helferich

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Analog/digital data storage system

Coded data generation or conversion – Analog to digital conversion followed by digital to analog...
Patent

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Analog/digital voice storage cellular telephone

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent

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Analog/digital voice storage cellular telephone

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent

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Paging transceivers and methods for selectively retrieving...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
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Paging transceivers and methods for selectively retrieving...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-333382

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