US4232205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microphone mount
Assignee: Thomson-Brandt SA
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Filing: 1978-08-01
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Granted: 1980-11-04
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Expires: 1998-08-01
Abstract
Abstract The built-in microphone of portable sound recorders or the like is mounted to the interior of the cabinet wall by means of a fixture which includes an intermediate member that holds the microphone and that is fastened to the cabinet wall. The intermediate member described in an exemplary embodiment is a lead disc which offers a high impedance to the propagation of mechanical vibrations from the tape transport mechanism to the microphone.
Inventors
- 👤 Rene Ribeyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:18
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/12; G11B33/121; G11B33/123; H; H04; H04R; H04R1/00; H04R1/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
A mounting fixture for mounting a microphone interiorly of a housing enclosure for enclosing a sound recording device, said sound recording device including mechanical transport means for a recording medium, and wherein the improvement comprises: said mounting fixture including an intermediate member of lead placed between said microphone and said enclosure for providing support for and acoustic decoupling of said microphone from said enclosure; whereby vibrations transmitted from said transport means to said microphone are dampened.
Claim 2
Dependent Claim
76 words
A mounting fixture for mounting a microphone interiorly of a housing enclosure for enclosing a sound recording device, said sound recording device including mechanical transport means for a recording medium, and wherein the improvement comprises: said mounting fixture including an intermediate member of lead placed between said microphone and said enclosure for providing support for and acoustic decoupling of said microphone from said enclosure; whereby vibrations transmitted from said transport means to said microphone are dampened.
Claim 3
Dependent Claim
42 words
A mounting fixture according to claim 1, wherein said lead intermediate member is of disc shape having a central opening to receive said microphone, said mounting fixture further including means for attaching said lead disc to an interior surface of said enclosure.
Claim 4
Dependent Claim
18 words
A mounting fixture according to claim 2, wherein said disc has a thickness of at least 2 millimeters.
Claim 5
Dependent Claim
79 words
A mounting fixture according to claims 2 or 3, wherein said interior surface of said enclosure is provided with a substantially cylindrical inwardly extending tubular support having an end face upon which said lead disc is mounted thereby introducing said microphone into said tubular support, the walls of said tubular support contributing to the increase of the acoustic impedance of the path between said enclosure and said microphone so as to further attenuate the propagation of mechanical vibrations thereto.
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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |