Dual in-band/out-of-band CATV system

A dual in-band/out-of-band CATV receiver includes a coupler that couples input signals to a tuner and decoder for demodulation and recovery of in-band data and to an FSK receiver for recovery of out-of-band data. The recovered data outputs of the decoder and of the FSK receiver are coupled to a data...

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Bibliographic Details
Main Authors LONG; MICHAEL E, MORELAND; LARRY K, AULD, JR.; FREDERICK H
Format Patent
LanguageEnglish
Published 26.10.1993
Edition5
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A dual in-band/out-of-band CATV receiver includes a coupler that couples input signals to a tuner and decoder for demodulation and recovery of in-band data and to an FSK receiver for recovery of out-of-band data. The recovered data outputs of the decoder and of the FSK receiver are coupled to a data switch that has a common output that is coupled to a tuner/decoder microprocessor. The tuner/decoder microprocessor in turn supplies information to a switch microprocessor for controlling operation of the data switch to couple either in-band or out-of-band data to the tuner/decoder microprocessor. The data switch defaults to the in-band data position whenever a channel change occurs.
Bibliography:Application Number: US19910761106