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Echo canceller having improved non-linear processor

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
Reexamination Certificate

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Echo canceller in a communication system at a terminal

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Echo processor generating pseudo background noise with high...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Echo removing apparatus

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Echo removing apparatus

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
Reexamination Certificate

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Gain control method for acoustic echo cancellation and...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Integrated noise cancellation and residual echo suppression

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Method and apparatus for soft-response echo suppression

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Method and apparatus for space-time echo cancellation

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Method for enhancing the acoustic echo cancellation system...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Method of capturing constant echo path information in a full...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Methods and apparatus for improving echo suppression in...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
Reexamination Certificate

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Methods and apparatus for providing echo suppression using...

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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Residual echo estimation for echo cancellation

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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System and method for comfort noise generation

Telephonic communications – Echo cancellation or suppression – Residual echo cancellation
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