Telecommunications – Wireless distribution system
Reexamination Certificate
2006-10-13
2010-10-26
Sobutka, Philip J (Department: 2618)
Telecommunications
Wireless distribution system
C455S041300, C455S069000, C455S161200, C455S183200, C455S186100
Reexamination Certificate
active
07822380
ABSTRACT:
A method and apparatus prevents interference between a radio signal from RDS-TMC service provider for receiving traffic and travel data by an RDS-TMC receiver and a radio signal for transmitting audio, text, or image data from an FM modulator. The method includes the steps of starting an operation of the receiver system, stopping an operation of the FM modulator while keeping operation of the RDS-TMC receiver, examining whether an RDS-TMC signal from a service provider is available at a current location, receiving the RDS-TMC signal and retrieving RDS-TMC data therefrom, sending the retrieved RDS-TMC data to an audio/video system, and starting the operation of the FM modulator while allowing to output an FM signal from the FM modulator at allowable frequency bands which are outside of a blocked range to send data to the audio/video system.
REFERENCES:
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patent: 6493546 (2002-12-01), Patsiokas
patent: 2003/0215024 (2003-11-01), Miyahara
patent: 2007/0141979 (2007-06-01), Brey
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patent: 11-331000 (1999-11-01), None
patent: 2001-358599 (2001-12-01), None
Alpine Electronics Inc.
Muramatsu & Associates
Sobutka Philip J
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