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US4224482A
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Mobile microphone-transmitter assembly
Assignee: AT&T Inc
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Filing: 1978-11-30
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Granted: 1980-09-23
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Expires: 1998-11-30
Abstract
Abstract A mobile microphone-transmitter assembly is disclosed which comprises a microphone, a plurality of infrared light emitting devices, electrical apparatus connected between the microphone and the devices to energize the devices in response to inputs to the microphone and a mechanical structure for supporting the devices to produce a substantially omnidirectional, horizontal radiation pattern when the structure is worn by a user and the devices are energized.
Inventors
- 👤 Gregory Lese
- 👤 Charles F. Liebler
- 👤 Dilipkumar B. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:33
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/72; H04M1/725; H04M1/737; H04M1/02; H04M1/04; H04M1/05
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A mobile microphone-transmitter assembly comprising mechanical means with a hook-like portion to be worn around the neck of a user and a pod-like portion which rests against the front of the body of a user, a first plurality of light emitting devices located on said hook-like portion so as to radiate generally to the rear of said user, a second plurality of light emitting devices located on said pod-like portion so as to radiate generally to the front of said user, a microphone mounted on said pod-like portion, means within said pod-like portion for energizing said first and second pluralities of light emitting devices, and means responsive to sound energy incident on said microphone for controlling the light intensity of both pluralities of said light emitting devices accordingly, said first and second plurality of light emitting devices providing a substantially omnidirectional, horizontal infrared radiation pattern.
Claim 2
Dependent Claim
145 words
A mobile microphone-transmitter assembly comprising mechanical means with a hook-like portion to be worn around the neck of a user and a pod-like portion which rests against the front of the body of a user, a first plurality of light emitting devices located on said hook-like portion so as to radiate generally to the rear of said user, a second plurality of light emitting devices located on said pod-like portion so as to radiate generally to the front of said user, a microphone mounted on said pod-like portion, means within said pod-like portion for energizing said first and second pluralities of light emitting devices, and means responsive to sound energy incident on said microphone for controlling the light intensity of both pluralities of said light emitting devices accordingly, said first and second plurality of light emitting devices providing a substantially omnidirectional, horizontal infrared radiation pattern.
Claim 3
Dependent Claim
20 words
The assembly in accordance with claim 1 in which said hook-like and pod-like portions are combined in a unitary structure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |