US3958084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conferencing apparatus
Assignee: Boeing North American Inc
•
Filing: 1974-09-30
•
Granted: 1976-05-18
•
Expires: 1994-09-30
Abstract
Abstract A method and apparatus for providing improved telephonic conferences is presented. A speaker is selected for each conferee from the signals of the other conferees. The peak values of the speaker signal establish a variable reference level which another conferee must first exceed in order to become the new speaker and establish a new reference level. The reference level is continuously allowed to decay so that new speakers may gain the floor when the current speaker's peak signals fall below the peak signals of another speaker. Both an analog and a digital embodiment of the invention are presented. A specific feature of the invention involves directing all signals of other conferees to all conferees and each conferee station selects the loudest signal (maximum amplitude) for that conferee.
Inventors
- 👤 David C. Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:38
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/56; H04M3/568; H04M3/569
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
The method of conferencing a plurality of signal sources in a switching system comprising the steps of: directing signals from all conferenced sources, other than the receiving conferee, toward each conferee; and selecting for each conferee, from among the directed signals to that conferee, the one signal having predetermined characteristics for receipt by that conferee.
Claim 2
Independent Claim
55 words
The method of conferencing a plurality of signal sources in a switching system comprising the steps of: directing signals from all conferenced sources, other than the receiving conferee, toward each conferee; and selecting for each conferee, from among the directed signals to that conferee, the one signal having predetermined characteristics for receipt by that conferee.
Claim 3
Dependent Claim
119 words
Switching system apparatus for providing a conferencing function between a plurality of signal source conferees comprising, in combination: a plurality of means for supplying a plurality of signals, from a like plurality of conferees, to be conferenced; means, connected to said plurality of means, for directing signals from each of the plurality of means, other than the particular conferee source to receive the signals, toward each of said plurality of conferees; and means intermediate said means for directing and each one of said plurality of means for supplying a plurality of signals, for selecting for each conferee, from among the signals directed thereto, the one signal having predetermined relative magnitude characteristics for receipt by each of said individual conferees.
Claim 4
Dependent Claim
119 words
Switching system apparatus for providing a conferencing function between a plurality of signal source conferees comprising, in combination: a plurality of means for supplying a plurality of signals, from a like plurality of conferees, to be conferenced; means, connected to said plurality of means, for directing signals from each of the plurality of means, other than the particular conferee source to receive the signals, toward each of said plurality of conferees; and means intermediate said means for directing and each one of said plurality of means for supplying a plurality of signals, for selecting for each conferee, from among the signals directed thereto, the one signal having predetermined relative magnitude characteristics for receipt by each of said individual conferees.
References Cited (Backward Citations)
US3437758A
Cited
US3530246A
Cited
US3530247A
Cited
US3551600A
Cited
US3612772A
Cited
US3748394A
Cited
US3694578A
Cited
US3674936A
Cited
US3856993A
Cited
US3699264A
Cited
US3755625A
Cited
US3801747A
Cited
US3761624A
Cited
US3828146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |