US4521906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker systems for producing balanced stereo images at multiple locations
Assignee: Individual
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Filing: 1983-03-28
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Granted: 1985-06-04
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Expires: 2003-03-28
Abstract
Abstract A stereo speaker system is shown having at least three individual speakers arranged along a path, with one of the speakers positioned between the other two speakers and connected to receive signals from a selected one of a pair of left and right signal outputs from a stereo signal source such as a stereo radio. Both of the other two speakers are connected to receive signals from the remaining one of said pair of outputs. Balanced stereo images are thus obtained simultaneously at two different locations. The system has particular application in an automobile. Another embodiment is shown which uses more than three speakers.
Inventors
- 👤 Leonard R. Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:15
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/02; H04S; H04S3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A speaker system for use in a vehicle, such as an automobile, in connection with a source of stereophonic signals having a pair of separate left and right stereo audio signal outputs, comprising: first, second and third speakers arranged along a path extending generally across the width of the passenger compartment of said automobile, wherein said first and third speakers are located at opposite ends of said path and said second speaker is located approximately midway between said first and third speakers; and means for coupling said first and third speakers to a selected one of said pair of stereo audio signal outputs and said second speaker to the remaining one of said pair of outputs, and for providing independent adjustment of the stereo image balance between said first and second speakers and between said second and third speakers.
Claim 2
Dependent Claim
139 words
A speaker system for use in a vehicle, such as an automobile, in connection with a source of stereophonic signals having a pair of separate left and right stereo audio signal outputs, comprising: first, second and third speakers arranged along a path extending generally across the width of the passenger compartment of said automobile, wherein said first and third speakers are located at opposite ends of said path and said second speaker is located approximately midway between said first and third speakers; and means for coupling said first and third speakers to a selected one of said pair of stereo audio signal outputs and said second speaker to the remaining one of said pair of outputs, and for providing independent adjustment of the stereo image balance between said first and second speakers and between said second and third speakers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |