4. Telephonic communications
  5. Echo cancellation or suppression

Oh-sang Kwon

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4 to 2 adder

Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate

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5-to-2 binary adder

Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate

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Burst mode receiver and method for stable reception of...

Pulse or digital communications – Receivers
Reexamination Certificate

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Channel equalizing and carrier recovery system for home...

Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate

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Digital echo cancellation device

Telephonic communications – Echo cancellation or suppression
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2914349

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