Method for suppressing disturbing noise

• US 20040142672A1
• Filed: 11/06/2003
• Published: 07/22/2004
• Est. Priority Date: 11/06/2002
• Status: Abandoned Application

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Stankewitz, Britta
• Application Number:
  US10/701,630
• Publication Number:
  US 20040142672A1
• Time in Patent Office: Days
• US Class Current: 455/296
• CPC Class Codes: G10L 21/0208 Noise filtering
• CPC Class Codes: H04M 1/19 Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor circuit arrangements for preventing eavesdropping H04M1/68; telephone cabinets E04H1/14

Abstract

A method of suppressing ambient noise in telephone calls between at least two telephone partners measures the ambient noise and determines the parameters for suppressing this ambient noise on the basis of an algorithm. When using a cell phone in a motor vehicle, the vehicle parameters are detected when it is detected that a connection is being established. On the basis of the vehicle parameters currently being detected, the starting parameters for the interference noise suppression are derived from a characteristics map which was determined in the application.

Claims

1. Method of suppressing ambient noise in a cell phone call to or from a motor vehicle, comprising measuring the ambient noise, determining parameters for suppressing the measured ambient noise, detecting vehicle parameters when a connection has been detected, and obtaining starting parameters for the ambient noise suppression from a characteristics map based on the currently detected vehicle parameters.

2. Method as claimed in claim 1, wherein the starting parameters are further improved during the call, further comprising storing the improved starting parameters as new starting parameters in the characteristics map.

3. Method as claimed in claim 1, wherein at least one of vehicle speed, load, rotational speed, window position, and optionally the position of a convertible top, if present, are determined as the vehicle parameters.