4. Electrical audio signal processing systems and devices
  5. One-way audio signal program distribution
  6. Public address system

Helmut Salbaum

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Circuit for storing a speech signal in a digital speech memory

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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D.M.A. controller that determines whether the mode of operation

Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Patent

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Data exchange interface that directly transmits control signals

Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output access regulation
Patent

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Profile ID: LFUS-PAI-P-1049966

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