Patent US3896773A successfully refreshed from Google Patents.
Patent US4654883A successfully refreshed from Google Patents.
US4654883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio transmitter and receiver device having a headset with speaker and microphone
Assignee: IWATA ELECTRIC Co Ltd 16-1 SOTOKANDA 1-CHOME CHIYODA-KU TOKYO JAPAN A CORP OF
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Filing: 1983-11-29
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Granted: 1987-03-31
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Expires: 2003-11-29
Abstract
Abstract A radio transmitter and receiver device in which a head band has a transmitting microphone at one end and a receiving speaker at the other end. This microphone comprises a bone transmission type microphone for detecting aural oscillation of an external auditory canal transmitted through a bone tissue of a head portion from a mouth, said microphone being brought into contact with a side head portion at the rear of an ear. Thus, one ear is blocked by the speaker but the other ear is open, and therefore, a user can catch noises thereabout. A transmitting and receiving antenna has matching means and is mounted on the side of the speaker.
Inventors
- 👤 Keisuke Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:13
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/3827; H04B1/385; H04B2001/3866
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
144 words
A headset having only one earphone speaker for use with a wireless transmitting and receiving device and capable of being worn on the head of a user without blocking both of the user's ears, the headset comprising: a head band dimensioned and configured to be worn on the head of a user of the headset; speaker means consisting of only one earphone speaker attached to the head band at a position in which the speaker blocks one of the user's ears during use of the headset; and a bone transmission type microphone attached to the head band at a position in which the microphone contacts a side portion of the user's head at the rear of the other of the user's ears without blocking the same to enable the microphone to receive bone-transmitted voice sounds made by the user during use of the headset.
Claim 2
Dependent Claim
144 words
A headset having only one earphone speaker for use with a wireless transmitting and receiving device and capable of being worn on the head of a user without blocking both of the user's ears, the headset comprising: a head band dimensioned and configured to be worn on the head of a user of the headset; speaker means consisting of only one earphone speaker attached to the head band at a position in which the speaker blocks one of the user's ears during use of the headset; and a bone transmission type microphone attached to the head band at a position in which the microphone contacts a side portion of the user's head at the rear of the other of the user's ears without blocking the same to enable the microphone to receive bone-transmitted voice sounds made by the user during use of the headset.
Claim 3
Dependent Claim
28 words
A headset according to claim 1; including means attachable over the user's other ear for holding the microphone in place at the rear of the user's other ear.
Claim 4
Dependent Claim
78 words
A headset according to claim 2; wherein the microphone comprises a pad for contacting the user's head at the rear of the user's other ear, a diaphragm connected to the pad and mounted to undergo oscillation in response to oscillating movement of the pad caused by bone-transmitted voice sounds, and a piezoelectric element connected to the diaphragm for producing an output voltage representative of the voice sounds in response to strains developed therein by oscillation of the diaphragm.
Claim 5
Dependent Claim
21 words
A headset according to claim 3; wherein the pad has a curved contour on the side thereof which contacts the user'head.
Claim 6
Dependent Claim
33 words
A headset according to claim 2; including means for adjustably attaching the speaker and the microphone to the head band to enable their positions to be adjusted to accommodate users of different size.
Claim 7
Dependent Claim
20 words
A headset according to claim 2; including an antenna connected to the head band in the vicinity of the speaker.
Claim 8
Dependent Claim
78 words
A headset according to claim 1; wherein the microphone comprises a pad for contacting the user's head at the rear of the user's other ear, a diaphragm connected to the pad and mounted to undergo oscillation in response to oscillating movement of the pad caused by bone-transmitted voice sounds, and a piezoelectric element connected to the diaphragm for producing an output voltage representative of the voice sounds in response to strains developed therein by oscillation of the diaphragm.
Claim 9
Dependent Claim
22 words
A headset according to claim 7; wherein the pad has a curved contour on the side thereof which contacts the user's head.
Claim 10
Dependent Claim
33 words
A headset according to claim 1; including means for adjustably attaching the speaker and the microphone to the head band to enable their positions to be adjusted to accommodate users of different size.
Claim 11
Dependent Claim
20 words
A headset according to claim 1; including an antenna connected to the head band in the vicinity of the speaker.
Claim 12
Dependent Claim
32 words
A headset according to claim 1; wherein the head band has two ends, the earphone speaker being attached to one end thereof and the microphone being attached to the other end thereof.
References Cited (Backward Citations)
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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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |