US4396802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aswixs remote speaker and handset set
Assignee: United States Department of the Navy
•
Filing: 1981-05-28
•
Granted: 1983-08-02
•
Expires: 2001-05-28
Abstract
Abstract A remote speaker and handset unit is interfaced with a satellite communicons system and a number of common users. A vocoder is interposed between each unit and the communications system to enable a real-time voice modulation-demodulation with suitable encryption. Means are provided for permitting a user to listen over a loudspeaker and to interrupt the loudspeaker with the handset when it is desired to transmit a transmission.
Inventors
- 👤 Dennis P. Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:03
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
In a communication system having a number of users each connected through a vocoder an improvement therefor is provided comprising: a speaker for audioly broadcasting the communications of the system; a keyed handset having an earphone and a microphone for providing a restricted listening to the communications of the system and for entering audio communications into the system; a push-to-talk switch connected to a first solenoid switch electrically coupled to the speaker and to a second solenoid switch electrically coupled to the keyed handset for selectively decoupling the speaker from the system and for selectively coupling the keyed handset having an earphone and a microphone into the system when the speaker is decoupled and vice versa and at least one suitably connected pin header for interfacing the speaker, the keyed handset and the push-to-talk switch.
Claim 2
Dependent Claim
135 words
In a communication system having a number of users each connected through a vocoder an improvement therefor is provided comprising: a speaker for audioly broadcasting the communications of the system; a keyed handset having an earphone and a microphone for providing a restricted listening to the communications of the system and for entering audio communications into the system; a push-to-talk switch connected to a first solenoid switch electrically coupled to the speaker and to a second solenoid switch electrically coupled to the keyed handset for selectively decoupling the speaker from the system and for selectively coupling the keyed handset having an earphone and a microphone into the system when the speaker is decoupled and vice versa and at least one suitably connected pin header for interfacing the speaker, the keyed handset and the push-to-talk switch.
References Cited (Backward Citations)
US2458558A
Cited
US2883521A
Cited
US3114800A
Cited
US3169221A
Cited
US3321580A
Cited
US3541258A
Cited
US3497623A
Cited
US3718765A
Cited
US3775562A
Cited
US4153877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |