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Application filed by Cellularvision Tech & Telecommunications L PfiledCriticalCellularvision Tech & Telecommunications L P
Priority to MYPI97004832ApriorityCriticalpatent/MY124138A/en
Publication of MY124138ApublicationCriticalpatent/MY124138A/en
A COMBINATION OF BROADBAND PROGRAM MATERIALS, SUCH AS TV (21), PLUS DIGITAL COMMUNICATIONS SERVICES (41) OF ALL TYPES, ARE BROADCAST TO A CELL IN THE SAME FREQUENCY BAND, SUCH AS 27.5 TO 28.5 GHz. THE COMBINATION OF ALL THE TRANSMITTED CHANNELS HAVE A COMBINED BANDWIDTH SUBSTANTIALLY EXCEEDING THE FREQUENCY BAND. AT LEAST SOME OF THE CHANNELS ARE TRANSMITTED WITH TWO DIVERSITY CHARACTERISTICS DIFFERENT FROM THOSE OF OTHER CHANNELS. IN ONE EMBODIMENT ANALOG SIGNALS TRANSMIT THE BROADBAND SERVICES, PREFERABLY USING WIDE DEVIATION FM MODULATION (25), THE FM CHANNELS FILING THE BAND. BY CHOOSING CARRIER FREQUENCIES SELECTIVELY, BETWEEN 5 AND 9 T-1 DIGITAL CHANNELS CAN BE BROADCAST IN EACH FM CHANNEL WHEN POLARIZATION IS THE SAME. DIFFERING POLARIZATION OF DIGITAL AND FM SIGNALS IN THE SAME BAND CAN ENABLE SELECTION AND DETECTION OF THE DESIRED ONE OF A FULL SPECTRUM OF DIGITAL SIGNALS, OR ANY ONE OF THE ANALOG SIGNALS.(FIG 1)
MYPI97004832A1997-10-141997-10-14Transmission of digital and analog signals in the same band.
MY124138A
(en)
System for enhancing the performance of a CATV settop terminal a system for use with a CATV settop terminal measures the input RF carrier signal power level at several frequencies within the CATV RF input bandwidth upon system power-up