Radio broadcast transmission system and receiver for incompatible signal formats, and method therefor
AssigneeThomson Consumer Electronics Sales GmbH
InventorKlaus Goken
Life of this patent
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Abstract
The present invention provides for an analog and/or digital radio broadcast transmission system and radio receiver therefor, which includes a control signal having an item of control information concerning another, different type of transmission/receive system. The receiver is a hybrid receiver able to receive both types of signals. When the same program material is available on both of the different systems, the control signal is used for switching the different systems so that the receiver receives the program on the system which provides the best reception.
Claims20
Method for the transmission of VHF-FM and/or AM radio broadcast signals, comprising temporarily or continuously transmitting a first control signal with this VHF-FM and/or AM radio signal, said first control signal containing an item of control information concerning another, different type of radio broadcast transmission system, said control signal being used for switching on and controlling a radio broadcast receiver for receiving digital radio broadcasting and/or for muting a radio broadcast receiver for the VHF-FM and/or AM radio broadcast signal.
Method for the transmission of digitally coded radio broadcast signals comprising temporarily or continuously transmitting a second control signal with the digitally coded radio broadcast signal, said second control signal containing an item of control information concerning another, different type of radio broadcast transmission system VHF-FM and/or AM, said second control signal being used for switching on and controlling a VHF-FM and/or AM radio broadcast receiver and/or for muting a radio broadcast receiver for the digitally coded radio broadcast signal.
Dependencies are inferred from the claim text.