Receiving apparatus, signal demodulating method, antenna apparatus, receiving system and antenna direction adjusting method
First Claim
1. An SHF-band receiving apparatus for demodulating an SHF-band signal comprises:
- antenna means having an outdoor converter;
a signal cable for supplying a signal from said converter;
an indoor unit for receiving a signal from said converter having;
demodulating means for demodulating a signal from the converter,detection means for detecting a detection signal representative the direction of said antenna from a demodulated signal of said demodulating means;
modulating means for modulating said detection signal with a carrier signal, andoutput means for supplying a signal from said modulating means to said antenna through said signal cable, and for displaying information of the antenna direction at the output-end of said signal cable.
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Accused Products
Abstract
An SHF-band receiving apparatus is used for demodulating a signal received by an antenna and input through a cable by using an indoor receiving unit which comprises: demodulation means for demodulating an input signal supplied thereto through the cable; detection means for detecting a detection signal representing the direction of the antenna from a demodulated signal output by the demodulation means; and output means for generating a modulated signal for displaying information on the direction of the antenna by modulation of a carrier signal based on the detection signal produced by the detection means and for outputting the modulated signal through the cable to the antenna side.
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Citations
14 Claims
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1. An SHF-band receiving apparatus for demodulating an SHF-band signal comprises:
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antenna means having an outdoor converter; a signal cable for supplying a signal from said converter; an indoor unit for receiving a signal from said converter having; demodulating means for demodulating a signal from the converter, detection means for detecting a detection signal representative the direction of said antenna from a demodulated signal of said demodulating means; modulating means for modulating said detection signal with a carrier signal, and output means for supplying a signal from said modulating means to said antenna through said signal cable, and for displaying information of the antenna direction at the output-end of said signal cable. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for displaying information of the antenna direction in a satellite broadcast receiving system comprising an antenna having an outdoor converter, a signal cable for supplying a signal from said converter, an indoor unit for receiving a signal from said converter through the signal cable, said method comprising the steps of:
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demodulating, at the indoor unit, an input signal from said converter; detecting, from a demodulated signal at the indoor unit, a detection signal representative of the direction of said antenna; modulating, at the indoor unit, said detection signal with a carrier signal; supplying, at the indoor unit, a modulated signal to said antenna through said signal cable; and displaying, at the antenna, information indicative of the antenna direction in response to a supplied modulated signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification