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Active noise control apparatus and waveform transforming apparat

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Patent

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Active noise control apparatus for domestic appliance

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control earpiece being compatible with magnetic cou

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control in a duct with highly turbulent airflow

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control method and receiver device

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within duct
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate

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Active noise control system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate

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Active noise control system and method

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation
Reexamination Certificate

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Active noise control system and method for on-line feedback path

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Patent

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Active noise control system and method for on-line feedback...

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate

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Active noise control system for attenuating engine generated noi

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control system for attenuating engine generated noi

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Active noise control system for automotive vehicle

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
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