Apparatus for automatically finding a radio program
AssigneeHarman Becker Automotive Systems GmbH
InventorBernhard Albicker
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AssigneeHarman Becker Automotive Systems GmbH
InventorBernhard Albicker
Estimating the term…
The invention relates to a method for automatically finding an AM radio program, by which an AM radio receiver is tuned through in discrete steps, such that, for each set AM frequency, the reception quality at the currently set AM frequency is determined, the field strength of the neighboring frequencies is measured. If a significant field strength is detected at the neighboring frequencies, these are taken into account in determining the overall reception quality, in that the reception quality is reduced by a noise value, and subsequently the overall reception quality is compared with an upper quality limit. If the upper quality limit is exceeded, the program search is interrupted, and the AM radio program with this high overall reception quality is played. This method succeeds in reducing the number of misjudgments of AM radio programs with actually poor quality, and thus improves the reproduction quality of an AM radio receiver.
A radio receiver system, comprising:
A method for automatically finding an AM radio program, by which an AM radio receiver is tuned through in discrete steps, such that, for each set AM frequency, the reception quality at the currently set AM frequency is determined, the field strength of the neighboring frequencies is measured, and, if a field strength is detected at the neighboring frequencies, these are taken into account in determining the overall reception quality, in that the reception quality is reduced by a noise value, and subsequently the overall reception quality is compared with an upper quality limit, and, if the upper quality limit is exceeded, the through-tuning process of the AM radio receiver is stopped, and the AM radio receiver is set to the AM frequency with sufficient overall reception quality, while otherwise the through-tuning process is continued.
A method for automatically finding and storing an AM radio program, by which an AM radio receiver is tuned through in discrete steps, such that, for each set AM frequency, the reception quality at the currently set AM frequency is determined, the field strength of the neighboring frequencies is measured, and, if a field strength is detected at the neighboring frequencies, these are taken into account in determining the overall reception quality, in that the reception quality is reduced by a noise value, and subsequently the overall reception quality is compared with an upper quality limit, and, if the upper limit is exceeded, the AM frequency with sufficient overall reception quality is stored in an AM radio program memory, and subsequently the through-tuning process, together with the evaluation of the overall reception quality, is continued until the entire AM frequency band has been tuned through, in such a way that the stored AM frequencies can be retrieved by actuating station keys on the AM radio receiver.
Dependencies are inferred from the claim text.