Phase independent surround speaker
First Claim
1. A speaker, comprising:
- a housing including a first driver, a second driver, a third driver, and a fourth driver;
a high pass filter connected with said first and third drivers, wherein said first and third drivers are wired having opposite polarities from one another such that said first driver is out of phase with said third driver by 180 degrees; and
a low pass filter connected with a lattice filter, wherein said low pass filter is configured to shift a phase of an input signal −
90 degrees and said lattice filter is configured to shift said phase by adding +45 degrees thereby forming a −
45 degree phase shift in said input signal, wherein an output of said lattice filter is connected with said second and fourth drivers.
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Accused Products
Abstract
A speaker is disclosed that can be positioned as either a right or left front surround or a right or left rear surround in any surround sound system. The speaker includes a housing including a first driver, a second driver, a third driver, and a fourth driver. A high pass filter is connected with the first and third drivers and the first and third drivers are wired having opposite polarities from one another such that the first driver is out of phase with the third driver by 180 degrees. A low pass filter is connected with a lattice filter, wherein the low pass filter is configured to shift a phase of an input signal −90 degrees and the lattice filter is configured to shift the phase by adding +45 degrees thereby forming a −45 degree phase shift. An output of the lattice filter is connected with the second and fourth drivers.
32 Citations
20 Claims
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1. A speaker, comprising:
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a housing including a first driver, a second driver, a third driver, and a fourth driver; a high pass filter connected with said first and third drivers, wherein said first and third drivers are wired having opposite polarities from one another such that said first driver is out of phase with said third driver by 180 degrees; and a low pass filter connected with a lattice filter, wherein said low pass filter is configured to shift a phase of an input signal −
90 degrees and said lattice filter is configured to shift said phase by adding +45 degrees thereby forming a −
45 degree phase shift in said input signal, wherein an output of said lattice filter is connected with said second and fourth drivers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A speaker, comprising:
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a housing having a first baffle facing a first direction and a second baffle facing a second direction; a first high frequency driver and a first low frequency driver positioned in said first baffle; a second high frequency driver and a second low frequency driver positioned in said second baffle; a high pass filter connected with said first high frequency driver and said second high frequency driver, wherein said first and second high frequency drivers are wired out of phase with one another; and a low pass filter connected with a lattice filter, wherein said first and second low frequency drivers are connected with an output of said lattice filter, wherein said first and second low frequency drivers are in phase with one another but out of phase with said first and second high frequency drivers. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A speaker, comprising:
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a housing having a first baffle facing a first direction and a second baffle facing a second direction; a first driver and a second driver positioned in said first baffle; a third driver and a fourth driver positioned in said second baffle; a high pass filter connected with said first driver and said third driver, wherein said first and drivers are wired out of phase with one another; and a low pass filter connected with a lattice filter, wherein said second and fourth drivers are connected with an output of said lattice filter, wherein said second and fourth drivers are in phase with one another but out of phase with said first and third drivers. - View Dependent Claims (20)
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Specification