4. Telephonic communications
  5. Substation or terminal circuitry
  6. For loudspeaking terminal

Fredrik Stenmark

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Communication terminals with a dual use speaker for sensing...

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Reexamination Certificate

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Echo cancellation and noise reduction adaptation during...

Telephonic communications – Echo cancellation or suppression – Using digital signal processing
Reexamination Certificate

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Methods, electronic devices and computer program products...

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

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Profile ID: LFUS-PAI-P-2976785

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