US3795769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching system for plurality of audio input
Assignee: TEX ROW MUSIC Inc
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Filing: 1970-09-23
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Granted: 1974-03-05
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Expires: 1990-09-23
Abstract
Abstract Through an electrical switching circuit, electrical signals are transmitted from a source of background sound to a first speaker system. Upon activation of a phonograph, a first relay is activated causing operation of the switching circuit resulting in non-transmission of the background sound and transmission of the phonograph sound to the first speaker system and a second speaker system. A third and fourth source of sound capable of producing electrical signals, when caused to be transmitted through the switching circuit, causes activation of a second relay and deactivation of the first relay. This results in transmission of only the third or fourth source of sound to both the first and second speaker systems. The fourth source of sound is capable of overriding the third source of sound.
Inventors
- 👤 D Nowka
- 👤 W May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:06
CPC Classifications
H; H04; H04R; H04R27/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
258 words
Electrical circuit for reproducing sound comprising: first means for transmitting electrical signals from a first source of sound through a first set of switches to a first speaker system, said first set of switches being located in a first position; second means for transmitting electrical signals from a second source of sound to said first speaker system, said first set of switches being operated to a second position, upon activation of said second source of sound, causing non-transmission of first source of sound during transmission of said second source of sound; third means for transmitting electrical signals from a third source of sound to said first speaker system, and including a second set of switches which, upon activation of said third source of sound, are operated from a first position to a second position, causing non-transmission of both said first and second sources of sound during transmission of said third source of sound; fourth means for transmitting electrical signals from a fourth source of sound to said first speaker system, said first set of switches being operated to said second position and said second set of switches being operated to said second position, upon activation of said fourth source of sound, causing nontransmission of said second and third sources of sound during transmission of said fourth source of sound; first relay means for effecting simultaneous operation of said first set of switches between said first and second position; and second relay meAns for effecting simultaneous operation of said second set of switches between said first and second positions.
Claim 2
Dependent Claim
258 words
Electrical circuit for reproducing sound comprising: first means for transmitting electrical signals from a first source of sound through a first set of switches to a first speaker system, said first set of switches being located in a first position; second means for transmitting electrical signals from a second source of sound to said first speaker system, said first set of switches being operated to a second position, upon activation of said second source of sound, causing non-transmission of first source of sound during transmission of said second source of sound; third means for transmitting electrical signals from a third source of sound to said first speaker system, and including a second set of switches which, upon activation of said third source of sound, are operated from a first position to a second position, causing non-transmission of both said first and second sources of sound during transmission of said third source of sound; fourth means for transmitting electrical signals from a fourth source of sound to said first speaker system, said first set of switches being operated to said second position and said second set of switches being operated to said second position, upon activation of said fourth source of sound, causing nontransmission of said second and third sources of sound during transmission of said fourth source of sound; first relay means for effecting simultaneous operation of said first set of switches between said first and second position; and second relay meAns for effecting simultaneous operation of said second set of switches between said first and second positions.
Claim 3
Dependent Claim
46 words
Apparatus as defined in claim 1 wherein: upon activation of said second means said first relay is activated causing simultaneous operation of said first set of switches, said activation of said second means can only occur during non-transmission of said third and fourth sources of sound.
Claim 4
Dependent Claim
21 words
from said third source of sound to said second speaker system whenever said third switch means is in on position, and
Claim 5
Dependent Claim
21 words
from said third source of sound to said second speaker system whenever said third switch means is in on position, and
Claim 6
Dependent Claim
20 words
from said fourth source of sound to said second speaker system whenever said fourth switch means is in on position.
Claim 7
Dependent Claim
20 words
from said fourth source of sound to said second speaker system whenever said fourth switch means is in on position.
Claim 8
Dependent Claim
19 words
Apparatus as defined in claim 2 wherein: said second source of sound is supplied from a coin operated phonograph.
Claim 9
Dependent Claim
24 words
Apparatus as defined in claim 2 wherein: upon activation of said third means said first relay is deactivated and said second relay is actuated.
Claim 10
Dependent Claim
35 words
Apparatus as defined in claim 4 wherein: upon activation of said fourth means other than when said third source of sound is being transmitted, said first relay is deactivated and said second relay is actuated.
Claim 11
Dependent Claim
34 words
Apparatus as defined in claim 5 wherein: said third source of sound being amplified, said fourth source of sound being amplified, the amplification of said fourth source being sufficient to override said third source.
Claim 12
Dependent Claim
240 words
Electrical circuit for reproducing sound comprising: first means for transmitting electrical signals from a first source of sound through a first set of switches to a first speaker system, said first set of switches being located in a first position; second means for transmitting electrical signals from a second source of sound to said first speaker system, said first set of switches being operated to a second position, upon activation of said second source of sound, causing non-transmission of first source of sound during transmission of said second source of sound; third means for transmitting electrical signals from a third source of sound to said first speaker system, and including a second set of switches which, upon activation of said third source of sound, are operated from a first position to a second position, causing non-transmission of both said first and second sources of sound during transmission of said third source of sound; upon operation of said third source of sound, said first set of switches being reoperated to return to said first position; fourth means for transmitting electrical signals from a fourth source of sound to said first speaker system, said first set of switches being operated to said second position and said second set of switches being operated to said second position, upon activation of said fourth source of sound, causing non-transmission of said second and third sources of sound during transmission of said fourth source of sound.
Claim 13
Dependent Claim
240 words
Electrical circuit for reproducing sound comprising: first means for transmitting electrical signals from a first source of sound through a first set of switches to a first speaker system, said first set of switches being located in a first position; second means for transmitting electrical signals from a second source of sound to said first speaker system, said first set of switches being operated to a second position, upon activation of said second source of sound, causing non-transmission of first source of sound during transmission of said second source of sound; third means for transmitting electrical signals from a third source of sound to said first speaker system, and including a second set of switches which, upon activation of said third source of sound, are operated from a first position to a second position, causing non-transmission of both said first and second sources of sound during transmission of said third source of sound; upon operation of said third source of sound, said first set of switches being reoperated to return to said first position; fourth means for transmitting electrical signals from a fourth source of sound to said first speaker system, said first set of switches being operated to said second position and said second set of switches being operated to said second position, upon activation of said fourth source of sound, causing non-transmission of said second and third sources of sound during transmission of said fourth source of sound.
Claim 14
Dependent Claim
225 words
An electric circuit for reproducing sound comprising: first circuit means, including first switch means, for transmitting electrical signals from a first source of sound to a speaker system, said first switch means having an on position and an off position; second circuit means, including second switch means, for transmitting electrical signals from a second source of sound to said speaker system, said second switch means having an on position and an off position and being effective when in said on position to place said first switch means in off position and thereby to disconnect said first source of sound from said speaker system and to connect said second source of sound to said speaker system; third circuit means, including third switch means, for transmitting electrical signals from a third source of sound to said speaker system, said third switch means having an on position and an off position and being effective when in said on position to insure disconnection of said second source of sound and said first source of sound from said speaker system, irrespective of the position of said second switch means; whereby said second source of sound, through said second switch means, asserts priority over said first source of sound; and said third source of sound, through said third switch means, asserts priority over both saId first and second sources of sound.
Claim 15
Dependent Claim
225 words
An electric circuit for reproducing sound comprising: first circuit means, including first switch means, for transmitting electrical signals from a first source of sound to a speaker system, said first switch means having an on position and an off position; second circuit means, including second switch means, for transmitting electrical signals from a second source of sound to said speaker system, said second switch means having an on position and an off position and being effective when in said on position to place said first switch means in off position and thereby to disconnect said first source of sound from said speaker system and to connect said second source of sound to said speaker system; third circuit means, including third switch means, for transmitting electrical signals from a third source of sound to said speaker system, said third switch means having an on position and an off position and being effective when in said on position to insure disconnection of said second source of sound and said first source of sound from said speaker system, irrespective of the position of said second switch means; whereby said second source of sound, through said second switch means, asserts priority over said first source of sound; and said third source of sound, through said third switch means, asserts priority over both saId first and second sources of sound.
Claim 16
Dependent Claim
154 words
Circuit in accordance with claim 8 including an addition: fourth circuit means, including fourth switch means, for transmitting electrical signals from a fourth source of sound to said speaker system; said fourth switch means having an on position and an off position and being effective when in said on position to insure disconnection of said second source of sound and said first source of sound from said speaker system, irrespective of the position of said second switch means; amplifying means interposed electrically between said fourth source of sound and said speaker system and having a gain sufficiently great to make the amplitude of the sound, applied to said speaker system by said fourth source of sound substantially greater than the amplitude of the sound applied to said speaker system by said third source of sound; whereby said fourth source of sound asserts priority over said first, said second and said third sources of sound.
Claim 17
Dependent Claim
19 words
Circuit in accordance with claim 9, including in addition: a second speaker system; and circuit means for applying sound:
Claim 18
Dependent Claim
64 words
Circuit in accordance with claim 10 wherein: said first source of sound comprises a background source of music; said second source of sound comprises a phonograph; said third source of sound comprises an audio-electrical transducer located adjacent to a source of audio entertainment; said fourth source of sound comprises a public address microphone; and said second speaker system is located physically in said phonograph.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |