US4392244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic transmission and reception control system
Assignee: Pilot Corp
•
Filing: 1980-12-16
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Granted: 1983-07-05
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Expires: 2000-12-16
Abstract
Abstract A system for automatically controlling the changeover of transmission and transmission stop, and being employed in the transmitting device provided with a vibration pick-up type microphone for picking up bone-conducted voice sounds. The automatic changeover of transmission and transmission stop is attained by control signals corresponding to impact vibrations except voice signals uttered by a microphone wearer himself, transmitted through his bones and picked up by the microphone or another controlling microphone.
Inventors
- 👤 Naomi Yoshizawa
- 👤 Akira Terashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
H; H04; H04R; H04R17/00; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/44; H04B1/46; H04R1/00; H04R1/10; H04R1/1041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
In an automatic transmission and reception control system for a transmitting and receiving device including a vibration pick-up type microphone for picking up bone-conducted voice signals, a speaker for hearing received voice sounds, and means for switching over between transmission and reception; the improvement comprising means coupled to said microphone for producing control signals from impact vibrations except voice signals uttered by a microphone wearer himself, transmitted through his bones and picked up by the microphone, and that said switching means comprises means responsive to said signals for alternately switching between transmission and reception according to the input order in which control signals are applied.
Claim 2
Dependent Claim
105 words
In an automatic transmission and reception control system for a transmitting and receiving device including a vibration pick-up type microphone for picking up bone-conducted voice signals, a speaker for hearing received voice sounds, and means for switching over between transmission and reception; the improvement comprising means coupled to said microphone for producing control signals from impact vibrations except voice signals uttered by a microphone wearer himself, transmitted through his bones and picked up by the microphone, and that said switching means comprises means responsive to said signals for alternately switching between transmission and reception according to the input order in which control signals are applied.
Claim 3
Dependent Claim
22 words
A system according to claim 1 comprising a second vibration pick-up type microphone arranged to pick up impact vibrations for voice transmission.
Claim 4
Dependent Claim
29 words
A system according to claim 1 wherein said microphone is arranged to be responsive to impact vibrations generated when the microphone wearer strikes his lower teeth against upper ones.
Claim 5
Dependent Claim
21 words
A system according to claim 1 comprising visible display means connected to display the transmission or reception state of said system.
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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) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |