US3789164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earphone assembly
Assignee: Individual
•
Filing: 1972-03-03
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Granted: 1974-01-29
•
Expires: 1992-03-03
Abstract
Abstract An earphone assembly is provided of the pneumatic type such as are presently used on aircraft, and which is constructed to improve the reproduction quality of the instrument by providing high frequency transducers directly at the ear pieces for producing high frequency sound signals which would otherwise be attenuated in the flexible plastic tubes coupling the ear pieces to the main electrical/acoustical transducer.
Inventors
- 👤 R Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:14
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/32; H04R1/34; H04R1/345; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/05; H04R1/10; H04R1/1058; H04R1/1075; H04R1/1016; H04R1/22; H04R1/26; H04R5/00; H04R5/033; H04R5/0335
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
138 words
An earphone assembly including: a first ear piece defining a first acoustic chamber and a second ear piece defining a second acoustic chamber; a first electrical/acoustical transducer for producing sound signals in response to audio electrical signals applied thereto; a first tubular member intercoupling said first transducer to said first acoustic chamber for carrying the sound signals from said first transducer to said first ear piece; a second electrical/acoustical transducer for producing sound signals in response to audio electrical signals applied thereto; a second tubular member intercoupling said second transducer to said second acoustic chamber for carrying the sound signals from said second transducer to said second ear piece; and a bleed valve member intercoupling said first and second tubular members and adjustable to produce an intermixing between the sound signals in said first and second tubular members.
Claim 2
Dependent Claim
138 words
An earphone assembly including: a first ear piece defining a first acoustic chamber and a second ear piece defining a second acoustic chamber; a first electrical/acoustical transducer for producing sound signals in response to audio electrical signals applied thereto; a first tubular member intercoupling said first transducer to said first acoustic chamber for carrying the sound signals from said first transducer to said first ear piece; a second electrical/acoustical transducer for producing sound signals in response to audio electrical signals applied thereto; a second tubular member intercoupling said second transducer to said second acoustic chamber for carrying the sound signals from said second transducer to said second ear piece; and a bleed valve member intercoupling said first and second tubular members and adjustable to produce an intermixing between the sound signals in said first and second tubular members.
Claim 3
Dependent Claim
236 words
An earphone assembly including: a first ear piece defining a first acoustic chamber and a second ear piece defining a second acoustic chamber; a first electrical/acoustical transducer for producing sound signals in response to audio electrical signals derived from a first signal source and applied thereto; a first tubular member intercoupling said first transducer to said first acoustic chamber for carrying relatively low frequency sound signals from said first transducer to said first ear piece; a second electrical/acoustical transducer for producing sound signals in response to audio electrical signals derived from a second signal source and applied thereto; a second tubular member intercoupling said second transducer to said second acoustic chamber for carrying relatively low frequency sound signals from said second transducer to said second ear piece; a first high frequency electrical/acoustical transducer mounted on said first ear piece for introducing relatively high frequency sound signal into said first acoustic chamber along a predetermined axis in response to applied audio electrical signals; a second high frequency electrical/acoustical transducer mounted on said second ear piece for introducing relatively high frequency sound signals into said second acoustic chamber along a predetermined axis in response to applied audio electrical signals; circuit means for introducing the audio electrical signals from said first signal source to said first high frequency transducer; and circuit means for introducing the audio electrical signals from said second signal source to said second high frequency transducer.
Claim 4
Dependent Claim
236 words
An earphone assembly including: a first ear piece defining a first acoustic chamber and a second ear piece defining a second acoustic chamber; a first electrical/acoustical transducer for producing sound signals in response to audio electrical signals derived from a first signal source and applied thereto; a first tubular member intercoupling said first transducer to said first acoustic chamber for carrying relatively low frequency sound signals from said first transducer to said first ear piece; a second electrical/acoustical transducer for producing sound signals in response to audio electrical signals derived from a second signal source and applied thereto; a second tubular member intercoupling said second transducer to said second acoustic chamber for carrying relatively low frequency sound signals from said second transducer to said second ear piece; a first high frequency electrical/acoustical transducer mounted on said first ear piece for introducing relatively high frequency sound signal into said first acoustic chamber along a predetermined axis in response to applied audio electrical signals; a second high frequency electrical/acoustical transducer mounted on said second ear piece for introducing relatively high frequency sound signals into said second acoustic chamber along a predetermined axis in response to applied audio electrical signals; circuit means for introducing the audio electrical signals from said first signal source to said first high frequency transducer; and circuit means for introducing the audio electrical signals from said second signal source to said second high frequency transducer.
Claim 5
Dependent Claim
131 words
The assembly defined in claim 2, and which includes a third high frequency electrical/acoustical transducer mounted on said first ear piece for introducing relatively high frequency sound signals into said first acoustic chamber in response to audio electrical signals applied thereto; circuit means connecting said third high frequency transducer to a third signal source for introducing audio signals from said third signal source to said third high frequency transducer; a fourth high frequency electrical/acoustical transducer mounted on said second ear piece for introducing relatively high frequency sound signals into said second acoustic chamber in response to audio electrical signals applied thereto; and circuitry connecting said fourth high frequency transducer to a fourth siGnal source for introducing the audio electrical signals from said fourth signal source to said fourth high frequency transducer.
Claim 6
Dependent Claim
57 words
The assembly defined in claim 3, in which said first and third high frequency transducers introduce sound signals into said first acoustic chamber along respective axes displaced angularly from one another, and in which said second and fourth high frequency transducers introduce sound signals into said second acoustic chamber along respective axes angularly displaced from one another.
Claim 7
Dependent Claim
27 words
The assembly defined in claim 2, and which includes resilient elongated means interconnecting said ear pieces to position said ear pieces in the ears of the listener.
Claim 8
Dependent Claim
29 words
The assembly defined in claim 5, and which includes mechanically adjustable means interposed in said resilient means for adjusting the distance between said ear pieces to different head sizes.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |