US3668323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive vehicle sound distribution system
Assignee: Individual
•
Filing: 1970-10-19
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Granted: 1972-06-06
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Expires: 1990-10-19
Abstract
Abstract In an automotive vehicle, a relay is manually operable to shift control over the sound level of a rear seat speaker from a front seat fader exclusively to a rear seat fader and the front seat fader collectively.
Inventors
- 👤 Thomas H Lee
- 👤 Donald E Brinkerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:37
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/02; H03G3/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
238 words
In an automotive vehicle having a front seat passenger area and a rear seat passenger area, a sound distribution system, comprising: an audio signal source; a first speaker servicing the front seat passenger area; a second speaker servicing the rear seat passenger area; switching means manually operable between a deactuated condition and an actuated condition, the switching means having first and second sets of switching contacts, the first set of contacts closed in the deactuated condition and open in the actuated condition, the second set of contacts open in the deactuated condition and closed in the actuated condition; a first fader connected between the audio signal source and the first speaker and connected between the audio signal source and the second speaker through the first set of contacts which are connected between the first fader and the second speaker, the first fader manually operable from the front seat passenger area to exclusively regulate the sound level of the first speaker at all times and to exclusively regulate the sound level of the second speaker when the switching means is in the deactuated condition; and a second fader connected between the first fader and the second speaker through the second set of contacts, the second fader manually operable from the rear seat passenger area to collectively regulate the sound level of the second speaker in conjunction with the first fader when the switching means is in the actuated condition.
Claim 2
Dependent Claim
238 words
In an automotive vehicle having a front seat passenger area and a rear seat passenger area, a sound distribution system, comprising: an audio signal source; a first speaker servicing the front seat passenger area; a second speaker servicing the rear seat passenger area; switching means manually operable between a deactuated condition and an actuated condition, the switching means having first and second sets of switching contacts, the first set of contacts closed in the deactuated condition and open in the actuated condition, the second set of contacts open in the deactuated condition and closed in the actuated condition; a first fader connected between the audio signal source and the first speaker and connected between the audio signal source and the second speaker through the first set of contacts which are connected between the first fader and the second speaker, the first fader manually operable from the front seat passenger area to exclusively regulate the sound level of the first speaker at all times and to exclusively regulate the sound level of the second speaker when the switching means is in the deactuated condition; and a second fader connected between the first fader and the second speaker through the second set of contacts, the second fader manually operable from the rear seat passenger area to collectively regulate the sound level of the second speaker in conjunction with the first fader when the switching means is in the actuated condition.
Claim 3
Dependent Claim
294 words
In an automotive vehicle having a front seat passenger area and a rear seat passenger area, a sound distribution system, comprising: an audio signal source; a first speaker servicing the front seat passenger area; a second speaker servicing the rear seat passenger area; relay means switchable between a deenergized condition and an energized condition, the relay means having first and second sets of switching contacts, the first set of contacts closed in the deenergized condition and open in the energized condition, the second set of contacts open in the deenergized condition and closed in the energized condition; a first fader connected between the audio signal source and the first speaker directly and connected between the audio signal source and the second speaker through the first set of contacts which are connected between the first fader and the second speaker, the first fader manually operable from the front seat passenger area to exclusively regulate the sound level of the first speaker at all times and to exclusively regulate the sound level of the second speaker when the first set of contacts is closed in the deenergized condition of the relay means; a second fader connected between the first fader and the second speaker through the second set of contacts, the second fader manually operable from the rear seat passenger area to collectively regulate the sound level of the second speaker in conjunction with the first fader when the second set of contacts is closed in the energized condition of the relay means; first control means connected to the relay means and operable from the front seat passenger area to deenergize the relay means; and second control means connected to the relay means and operable from the rear seat passenger area to energize the relay means.
Claim 4
Dependent Claim
294 words
In an automotive vehicle having a front seat passenger area and a rear seat passenger area, a sound distribution system, comprising: an audio signal source; a first speaker servicing the front seat passenger area; a second speaker servicing the rear seat passenger area; relay means switchable between a deenergized condition and an energized condition, the relay means having first and second sets of switching contacts, the first set of contacts closed in the deenergized condition and open in the energized condition, the second set of contacts open in the deenergized condition and closed in the energized condition; a first fader connected between the audio signal source and the first speaker directly and connected between the audio signal source and the second speaker through the first set of contacts which are connected between the first fader and the second speaker, the first fader manually operable from the front seat passenger area to exclusively regulate the sound level of the first speaker at all times and to exclusively regulate the sound level of the second speaker when the first set of contacts is closed in the deenergized condition of the relay means; a second fader connected between the first fader and the second speaker through the second set of contacts, the second fader manually operable from the rear seat passenger area to collectively regulate the sound level of the second speaker in conjunction with the first fader when the second set of contacts is closed in the energized condition of the relay means; first control means connected to the relay means and operable from the front seat passenger area to deenergize the relay means; and second control means connected to the relay means and operable from the rear seat passenger area to energize the relay means.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |