Radio receiver for receiving a main radio broadcast signal and a

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency

Patent

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Details

4551611, 4551613, 4551861, 4551865, H04B 118, H04B 116

Patent

active

060945680

ABSTRACT:
An RDS or RDBS radio broadcast receiver, utilizing a microcontroller and a serial communication bus, receives a list of alternative frequencies to allow the receiver to switch to an alternative frequency when the quality of the main radio broadcast signal deteriorates. Therefore the quality of the alternative frequency transmissions has to be updated from time to time. To avoid time delays caused by the relatively slow serial communication bus, the tuning section includes further controller for performing the alternative frequency updates.

REFERENCES:
patent: 5220682 (1993-06-01), Tomohiro
patent: 5349699 (1994-09-01), Erben et al.
patent: 5428825 (1995-06-01), Tomohiro et al.
patent: 5428827 (1995-06-01), Kasser
patent: 5471662 (1995-11-01), Shiota
patent: 5548828 (1996-08-01), Kozaki et al.
patent: 5745845 (1998-04-01), Suenaga et al.

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