Automatic broadcast wave tuning device for RDS receiver

Details Automatic broadcast wave tuning device for RDS receiver Automatic broadcast wave tuning device for RDS receiver

1991-09-26

1993-06-15

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551613, 4551841, 4551861, H04B 1702

Patent

active

052206823

ABSTRACT:
An automatic broadcast wave tuning device for a RDS receiver includes a controller to enforce the RDS receiver to receive the former broadcast wave by setting a forbidden flag under such conditions as being unable to receive a program identification code when a receiving signal level of the broadcast wave within the same broadcasting network is above a predetermined signal level, or in the case of being able to receive the program identification code when failing to meet up with that of the broadcasting station presently in contact. Hence, from the next automatic receiving frequency tuning, a control is provided for setting a frequency divisional ratio of the phase-locked loop circuit in order to select the best broadcast station of all by discriminating reception signal levels of the broadcast waves transmitted by all the broadcasting stations bearing no forbidden flag.

REFERENCES:
patent: 4326297 (1982-04-01), Sato et al.

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