Patent ID: 6731349
Filing Date: 2004-05-04
Classification: H03J

Abstract:
A tuner with at least a first and a second frequency band and with a signal input terminal for the supply of a frequency information signal, comprising:a band selection circuit which is provided for the selection and control of one frequency band at a time, and the band selection circuit includes a band preselection circuit for setting a new frequency, the band preselection circuit being adapted to carry out a preliminary selection of the frequency band in dependence on the frequency information signal, and the preselection circuit is adapted to distinguish between unequivocal frequency information signals, which can be unequivocally associated with one frequency band, and equivocal frequency information signals which cannot be unequivocally associated with one frequency band, wherein in the case of equivocal frequency information signals in a first step the testing of the tuning possibility of the frequency in the first frequency band is provided and, if tuning in the first frequency band is not possible, in a second step the testing of the tuning possibility of the frequency in the second frequency band is provided; and a frequency search function for tuning to a frequency, which function in a first step is adapted to test the tuning possibility of the frequency in the first frequency band and, if tuning in the first frequency band is not possible, in a second step is designed for testing the tuning possibility of the frequency in the second frequency band.