Automotive radio employing multipath correction strategy based on vehicle speed

U.S. Patent Number: 5379449

Abstract: An automotive radio system employs a plurality of corrective actions in response to the detection of multipath interference to reduce distortion audible to a listener. The speed of the vehicle is determined since the number of multipath events per unit time and the expected duration of each multipath event vary according to vehicle speed. The corrective action taken in response to detection of multipath interference depends upon the vehicle speed. In a diversity antenna system, antenna switching is suspended at high vehicle speed while filtering of the audio output to reduce noise is suspended at lower vehicle speeds.

Inventors: Porambo; Sylvester P. (Canton, MI)

Assignee: Ford Motor Company (Dearborn, MI)

Application Number: 07/979,955

Issued: 1995-01-03

Expired: 2007-01-03

Classes: 455/506 ; 381/13; 455/277.2; 455/297

Field of search: 455/56.1,62,63,67.1,132,134,135,10,52.1,52.3,238.1,272,277.1,277.2,65,295,296 381/86,13,10 324/160,166

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