Patents 814show all

  • 121
    G06F - Electric digital data processing
  • 84
    H04S - Stereophonic systems 
  • 80
    H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers
  • 70
    H04N - Pictorial communication, e.g. television
  • 69
    G10H - Electrophonic musical instruments
  • 51
    G10L - Speech analysis or synthesis
  • 42
    H04L - Transmission of digital information, e.g. telegraphic communication
  • 35
    G11B - Information storage based on relative movement between record carrier and transducer
  • 34
    G06T - Image data processing or generation, in general
  • 20
    H03G - Control of amplification

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