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US3863028A Expired / Lapsed US ⏱️ 0.0 years remaining

Stereophonic transducer arrangement

Assignee: IND PATENT DEV CORP
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Filing: 1972-02-28
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Granted: 1975-01-28
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Expires: 1992-02-28
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Abstract

Abstract A stereophonic device that includes headphones for receiving at least four channels of information to provide a full panorama of sound. The speakers in each of the earpieces of the headphone are arranged in side-by-side spaced relation. A jack for connecting multichannel headphones to a suitable source has means permitting capacitive coupling between the channels connecting the source to the speakers.

Inventors

  • 👤 Jon S Fixler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:51
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/033; H04R5/0335; H04R1/00; H04R1/10; H04R1/1058; H04R1/1075; H04R1/1008; H04R2205/00; H04R2205/022

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 159 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure laterally displaced with respect to each other, said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, and baffle means interposed between said audio transducers in each of said enclosures to provide stereo sound separation between each transducer within each of said enclosures.
Claim 2
Dependent Claim 159 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure laterally displaced with respect to each other, said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, and baffle means interposed between said audio transducers in each of said enclosures to provide stereo sound separation between each transducer within each of said enclosures.
Claim 3
Dependent Claim 26 words
Stereophonic headphones in accordance with claim 1 wherein a layer of foam is provided on said inside wall, said layer having an aperture overlying said opening.
Claim 4
Dependent Claim 24 words
Stereophonic headphones as defined in claim 2 wherein said opening includes a plurality of louvres and said layer overlies a portion of said louvres.
Claim 5
Dependent Claim 18 words
Stereophonic headphones in accordance with claim 1 including means to selectively mix the signals applied to the transducers.
Claim 6
Dependent Claim 128 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear at least two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosures in spaced relation from said outside wall and being laterally displaced with respect to each other, and baffle means interposed between said audio transducers in each of said enclosures to acoustic enhance the separation of said audio transducers.
Claim 7
Dependent Claim 128 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear at least two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosures in spaced relation from said outside wall and being laterally displaced with respect to each other, and baffle means interposed between said audio transducers in each of said enclosures to acoustic enhance the separation of said audio transducers.
Claim 8
Dependent Claim 22 words
Stereophonic headphones as defined in claim 5 wherein each of said audio transducers in said enclosures is supported by said inside wall.
Claim 9
Dependent Claim 181 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, at least two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure laterally displaced with respect to each other, and said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, a plurality of means for applying signals to each of said transducers, and means for coupling a predetermined portion of the electronic signal in at least a first one of said signal applying means into at least a second one of said signal applying means.
Claim 10
Dependent Claim 181 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, at least two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure laterally displaced with respect to each other, and said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, a plurality of means for applying signals to each of said transducers, and means for coupling a predetermined portion of the electronic signal in at least a first one of said signal applying means into at least a second one of said signal applying means.
Claim 11
Dependent Claim 22 words
Stereophonic headphones in accordance with claim 7, including means to selectively mix the signals applied to more than two of the transducers.
Claim 12
Dependent Claim 156 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure in spaced relation from said outside wall and being displaced laterally with respect to each other, said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, and acoustic separation means interposed between said audio transducers in each of said enclosures.
Claim 13
Dependent Claim 156 words
Stereophonic headphones for a four channel system comprising a support, first and second enclosures to be positioned over the ears of a listener carried by said support, each of said enclosures including an inside wall to lie adjacent an ear and an outside wall spaced outwardly from said inside wall, said inside walls having an opening for the emission of sound into the ear of the listener, two audio transducers in each of said enclosures for transducing electronic signals into sound, each of said audio transducers being supported in said enclosure in spaced relation from said outside wall and being displaced laterally with respect to each other, said support being adapted to position said first and second enclosures over the ear of the listener with said transducers being in a front to back relation with respect to the head of the listener, and acoustic separation means interposed between said audio transducers in each of said enclosures.
Claim 14
Dependent Claim 29 words
The headphones of claim 5, wherein said baffle means comprises a member in each of said enclosures fixed to said outside wall and being expandable toward said inside wall.
Claim 15
Dependent Claim 31 words
The headphones of claim 7 further characterized in that said coupling means is also for coupling into said one circuit a predetermined portion of the signal in another of said circuits.
Claim 16
Dependent Claim 50 words
Stereophonic headphone assembly comprising: a. first and second enclosures, b. at least two transducers in each enclosure, c. a plurality of means for applying signals to respective ones of said transducers, and d. means for coupling the signal in at least one of said (c) means to another one thereof.
Claim 17
Dependent Claim 50 words
Stereophonic headphone assembly comprising: a. first and second enclosures, b. at least two transducers in each enclosure, c. a plurality of means for applying signals to respective ones of said transducers, and d. means for coupling the signal in at least one of said (c) means to another one thereof.
Claim 18
Dependent Claim 123 words
A headphone assembly for use with four electrical signals containing sound information corresponding to predetermined spatial positions comprising: a. at least first and second transducer mounting means adapted to be positioned respectively in close proximity to the ears of a wearer, b. at least two sets of electro-acoustic transducers, each set comprising two tranducers mounted to a corresponding one of said mounting means, c. means for applying predetermined portions of one of said signals to a predetermined one or ones of said transducers, d. means for applying predetermined portions of another of said signals to at least one of said transducers, and e. means for applying predetermined portions of said third and fourth signals to a predetermined one or ones of said transducers.
Claim 19
Dependent Claim 123 words
A headphone assembly for use with four electrical signals containing sound information corresponding to predetermined spatial positions comprising: a. at least first and second transducer mounting means adapted to be positioned respectively in close proximity to the ears of a wearer, b. at least two sets of electro-acoustic transducers, each set comprising two tranducers mounted to a corresponding one of said mounting means, c. means for applying predetermined portions of one of said signals to a predetermined one or ones of said transducers, d. means for applying predetermined portions of another of said signals to at least one of said transducers, and e. means for applying predetermined portions of said third and fourth signals to a predetermined one or ones of said transducers.

References Cited (Backward Citations)

US2110358A Cited
US2710662A Cited
US2846521A Cited
US3454964A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-27 1978-07-29 1979-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-27 1982-07-29 1983-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-27 1986-07-29 1987-01-28 $7700.00 Window Closed / Lapsed

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