Method and apparatus for creating a virtual third channel in a two-channel amplifier
First Claim
1. A method for creating a third signal channel from an input signal received in each of a first and second channel, comprising the steps of:
- shifting a predetermined frequency range of signals in the first channel out of phase with the input signal in the first channel;
inverting the shifted signal in the first channel to produce an inverted signal, wherein a range of signals outside the predetermined frequency range of signals in the inverted signal is out of phase with a corresponding frequency range of signals in the second channel; and
communicating the inverted signal in the first channel and the signal in the second channel to a third channel speaker as the third signal channel.
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Abstract
A method and apparatus for creating a third signal channel from an input signal received in each of a first and second channel involves inverting a predetermined frequency range of signals in the first channel out of phase with a corresponding frequency range of signals in the second channel. Thereafter, the inverted signal in the first channel and the corresponding frequency signal in the second channel may be communicated to a speaker, which is bridged across the first and second channels, as the third signal channel. This speaker produces sound corresponding to the difference (i.e., the frequency range determined by the predetermined bandwidth of the inverted signal) between the inverted signal in the first channel and the corresponding frequency signal in the second channel.
11 Citations
9 Claims
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1. A method for creating a third signal channel from an input signal received in each of a first and second channel, comprising the steps of:
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shifting a predetermined frequency range of signals in the first channel out of phase with the input signal in the first channel; inverting the shifted signal in the first channel to produce an inverted signal, wherein a range of signals outside the predetermined frequency range of signals in the inverted signal is out of phase with a corresponding frequency range of signals in the second channel; and communicating the inverted signal in the first channel and the signal in the second channel to a third channel speaker as the third signal channel. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for creating a third channel signal from an input signal received in each of a first and second channel, comprising:
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a filter configured to shift a predetermined frequency range of signals in the first channel out of phase with the input signal in the first channel and output a shifted signal; an inverter configured to invert the shifted signal to produce an inverted signal, wherein a range of signals outside the predetermined frequency range of signals in the inverted signal in the first channel is out of phase with a corresponding frequency range of signals in the second channel; and wherein the differential of the predetermined frequency range of signals in the inverted signal in the first channel and the corresponding frequency range of signals in the second channel comprise the third channel signal. - View Dependent Claims (7, 8, 9)
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Specification