(19)
(11) EP 0 507 096 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.03.1993 Bulletin 1993/09

(43) Date of publication A2:
07.10.1992 Bulletin 1992/41

(21) Application number: 92103754.5

(22) Date of filing: 05.03.1992
(51) International Patent Classification (IPC)5H04H 1/00
(84) Designated Contracting States:
DE FR GB

(30) Priority: 29.03.1991 JP 66652/91

(71) Applicant: PIONEER ELECTRONIC CORPORATION
Meguro-ku Tokyo 153 (JP)

(72) Inventors:
  • Suenaga, Shoji, c/o Pioneer Electronic Cor.
    Kawagoe-shi, Saitama, 350 (JP)
  • Miyake, Takashi, c/o Pioneer Electronic Cor.
    Kawagoe-shi, Saitama, 350 (JP)

(74) Representative: Reinhard - Skuhra - Weise & Partner 
Postfach 44 01 51
80750 München
80750 München (DE)


(56) References cited: : 
   
       


    (54) A RDS receiver


    (57) The present invention provides an RDS receiver for use with an automobile which receives data concerning radio broadcasting stations incorporated within a network and is capable of, in case the electric field strength of a radio station currently being received has decreased to less than a predetermined level in some way or other, automatically selecting a radio wave broadcast from another radio station having a higher electric field strength in the same network, wherein the RDS receiver, in automatically changing from a radio station currently being received to another radio station broadcasting the same program, extends or shortens a muting time during which the muting operation is executed, by controlling a station detector (SD) waiting time, which is a required period of time until the SD signal becomes high level, in proportion to a difference between the frequency currently being received and that of another radio station.
    In order to complete the above object, the RDS receiver according to the present invention comprises a controlling means to calculate a difference between the frequency currently being received and that of another radio station, and controls an SD (station detector) waiting time in proportion to the thus figured-out difference therebetween.







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