Nokia Telecommunications Oy

Nokia Mobile Phones Limited

Ingo Kuhn

Ilkka Antero Keskitalo

Ari T Hottinen

Petri Antero Jolma

Arto Kiema

Risto Uola

Jari Savusalo

Ari Karkkainen

Anne Siira

Hannu Hakkinen

Timo Laakso

Pertti Alapuranen

Janne Paksuniemi

Aimo Tuoriniemi

Methods and apparatus are disclosed for suppressing transmitter burst mode disturbances in an audio band. The method and apparatus detects those signal frames wherein the input signal contains signal energy comprised substantially of only the disturbance signal; characterizes the disturbance signal in the detected signal frames to obtain a disturbance signal correction; and compensates the input signal, only for those signal frames where a transmission burst exists, using the obtained disturbance signal correction so as to remove the disturbance signal from those signal frames that contain voice, and also from certain signal frames that do not contain voice. Frequency hopping embodiments of disturbance removing circuitry are also disclosed.

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Growing community of inventors

Oulu, Finland

Ingo Kuhn