Color video display for audio signals
First Claim
1. A chrominance generator circuit for a television receiver having three chrominance inputs, comprising:
- means for receiving an audio signal and generating a plurality of first electrical signals, each of the first signals being a function of the instantaneous amplitude of one portion of the total frequency band width of the audio signal;
means, independent of said first signals, for generating a plurality of second electrical signals as a function of a pattern to be displayed on the television receiver;
three modulators, each connected to receive at least certain of said first signals and at least certain of the second signals to produce output signals which have functions of these input signals; and
means for providing the three modulator output signals to the three chrominance inputs of the color television receiver.
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Accused Products
Abstract
A system for generating an aesthetically pleasing abstract display on the screen of a color television receiver in timed relation to an audio signal derived from music or the like employs a filter network to divide the audio signal into a plurality of separate frequency bands. These signals are provided to the inputs of three modulators along with video pattern signals developed by a digital/analog mapping network connected to the outputs of various stages of an oscillator driven counter chain. The same counter chain produces the horizontal and vertical synchronization signals for the receiver so that the display is generated in timed relation to the raster scan of the television receiver. The three modulators receive certain of the audio signals and certain of the analog signals and their outputs are provided to the three chrominance inputs of the receiver either directly or via an RF transmitter which allows connection to the antenna of the TV set.
13 Citations
9 Claims
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1. A chrominance generator circuit for a television receiver having three chrominance inputs, comprising:
- means for receiving an audio signal and generating a plurality of first electrical signals, each of the first signals being a function of the instantaneous amplitude of one portion of the total frequency band width of the audio signal;
means, independent of said first signals, for generating a plurality of second electrical signals as a function of a pattern to be displayed on the television receiver;
three modulators, each connected to receive at least certain of said first signals and at least certain of the second signals to produce output signals which have functions of these input signals; and
means for providing the three modulator output signals to the three chrominance inputs of the color television receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- means for receiving an audio signal and generating a plurality of first electrical signals, each of the first signals being a function of the instantaneous amplitude of one portion of the total frequency band width of the audio signal;
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8. A system for generating the displays on the screen of a color television receiver having chrominance inputs in timed relation to an audio signal, comprising:
- means for receiving the audio signal and generating a plurality of first electrical signals, each having a value which is a function of the instantaneous intensity of a separate frequency component of the audio signal;
an oscillator;
a divider chain driven by the oscillator;
circuit means connected to stages of the divider chain and operative to generate horizontal and vertical synchronization signals for a color television receiver;
digital to analog converter means connected to stages of the divider chain operative to generate a plurality of second electrical signals;
a plurality of modulators each having as inputs at least one of said first electrical signals and at least one of said second electrical signals, and each being operative to generate output signals which are a function to each of its inputs; and
means for connecting the outputs of the modulators to the chrominance inputs of said color television receiver. - View Dependent Claims (9)
- means for receiving the audio signal and generating a plurality of first electrical signals, each having a value which is a function of the instantaneous intensity of a separate frequency component of the audio signal;
Specification