4. Amplifiers
  5. Modulator-demodulator-type amplifier

Yoshimichi Maejima

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Analog signal amplifier and audio signal amplifier

Amplifiers – Modulator-demodulator-type amplifier
Patent

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Sound field correction circuit

Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic
Reexamination Certificate

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Speaker driving circuit

Electrical audio signal processing systems and devices – Including amplitude or volume control – With manual volume control
Reexamination Certificate

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Surround processor for audio signal

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent

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Profile ID: LFUS-PAI-P-1294209

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