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AssigneeKabushiki Kaisha Kenwood
InventorAtsushi Tsurumi
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A tuner unit generates a local oscillation signal which is multiplied by a received first IF signal to change the frequency of the received first IF signal, and converts the frequency-changed first IF signal into a baseband signal. A demodulation unit detects the signal level of demodulated data, and notifies the signal level to a control unit. The control unit compares the signal level notified by the demodulation unit with a reference value stored in a storage unit, and if the signal level is equal to or smaller than the reference value, makes the tuner unit change the frequency of a local oscillation signal to be used for frequency conversion of the first IF signal and perform a channel selection in a next frequency range. Time taken to start providing a service can therefore be shortened.
A channel selection apparatus for digital TV broadcast use for receiving a first intermediate frequency (IF) signal and for automatically sweeping a predetermined frequency range for tuning, said apparatus comprising channel selection means, and reproduction means, wherein said channel selection means:
A channel selection method for digital TV broadcast use, for receiving a first intermediate frequency (IF) signal and automatically sweeping a predetermined frequency range for tuning said method comprising a channel selection step and a reproduction step, wherein:
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