Method and Apparatus for Determining and Displaying Signal Quality Information on a Television Display Screen
First Claim
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1. A method for determining and displaying the signal quality of a television signal, comprising the steps of:
- gathering at least two of the following indicators of signal quality from a received radio frequency television signal;
a) signal strength of the television signal;
b) bit error rate of the television signal;
c) signal-to-noise ratio of the television signal;
ord) channel multi-path distortion of the television signal;
processing each of said gathered indicators of signal quality; and
displaying a representation of a measured value of each of said gathered indicators on a television display.
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Abstract
A method and apparatus for determining and displaying signal quality measurement on a television display screen. The method and apparatus of this invention provides for the display of signal quality measurements, including measurements of signal-to-noise ratio, bit error rate and channel multi-path distortion in addition to the signal strength. Furthermore, apparatus are described and methods described whereby these signal quality measurements may be ascertained and provided either through television overlay or through NTSC radio frequency modulation to particular television channels.
102 Citations
47 Claims
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1. A method for determining and displaying the signal quality of a television signal, comprising the steps of:
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gathering at least two of the following indicators of signal quality from a received radio frequency television signal; a) signal strength of the television signal; b) bit error rate of the television signal; c) signal-to-noise ratio of the television signal;
ord) channel multi-path distortion of the television signal; processing each of said gathered indicators of signal quality; and displaying a representation of a measured value of each of said gathered indicators on a television display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus for determining and displaying signal quality measurements on a television display, comprising:
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at least one antenna for gathering radio frequency television signals; a radio frequency tuner, connected to said at least one antenna for selecting said radio frequency television signals; a digital demodulator, connected to said radio frequency tuner, for demodulating said selected radio frequency television signals; a MPEG-2 video decoder, connected to said digital demodulator, for decoding said digitally demodulated radio frequency television signals; a microprocessor, connected to said digital demodulator and to said MPEG-2 video decoder, for receiving signal quality information and using said representative signal quality information for display; and a video display, connected to said microprocessor, for displaying said representative signal quality information. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method of determining and displaying the quality of an over-the-air broadcast high definition television signal on a television display, comprising the steps of:
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gathering at least two of the following indicators of signal quality from the television signal; a) signal strength of the television signal; b) bit error rate of the television signal; c) signal-to-noise ratio of the television signal;
ord) channel multi-path distortion of the television signal; processing each of said gathered indicators of signal quality to create a representation of a measured value of said indicators; displaying said representation of said measured value on the television display. - View Dependent Claims (44, 45, 46, 47)
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Specification