US3692938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for visually informing stations of conditions encountered during establishment of a call
Assignee: AT&T Inc
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Filing: 1970-10-15
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Granted: 1972-09-19
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Expires: 1990-10-15
Abstract
Abstract An audio-video switching system is provided with a control circuit operable to detect the various conditions encountered during the establishment of calling connections through the system and in response to each such condition to select a corresponding one of a plurality of video image generators and to associate such generator with the communication path extending to the corresponding calling station so as to visually inform the calling station of the status of the call.
Inventors
- 👤 Eric John Addeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:46
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/58; H04Q3/62; H04Q3/625
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
In a switching system, a plurality of stations each comprising video receiving means, an attendant position comprising video transmitting means having a connection established to one of said stations, means controlled by said position for extending said connection to another of said stations, a plurality of sources of video information, and means controlled by said extending means or connecting selected ones of said sources in sequence to said attendant position transmitting means thereby visually informing said one station of the progress of said connection.
Claim 2
Dependent Claim
84 words
In a switching system, a plurality of stations each comprising video receiving means, an attendant position comprising video transmitting means having a connection established to one of said stations, means controlled by said position for extending said connection to another of said stations, a plurality of sources of video information, and means controlled by said extending means or connecting selected ones of said sources in sequence to said attendant position transmitting means thereby visually informing said one station of the progress of said connection.
Claim 3
Dependent Claim
127 words
In a video-telephone communication system, a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, video trunk means for extending a video communication path from a first one of said stations to another of said stations, audio trunk means for extending a telephone communication path from said first station to said other station comprising supervisory signal indicating means, means for monitoring said audio trunk supervisory signal indicating means, means controlled by said monitoring means for detecting the occurrence of certain conditions, a plurality of sources of video signals each Operable to transmit information identifying one of said conditions, and switch means controlled by said detecting means for connecting selected ones of said sources in sequence to said video trunk means.
Claim 4
Dependent Claim
127 words
In a video-telephone communication system, a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, video trunk means for extending a video communication path from a first one of said stations to another of said stations, audio trunk means for extending a telephone communication path from said first station to said other station comprising supervisory signal indicating means, means for monitoring said audio trunk supervisory signal indicating means, means controlled by said monitoring means for detecting the occurrence of certain conditions, a plurality of sources of video signals each Operable to transmit information identifying one of said conditions, and switch means controlled by said detecting means for connecting selected ones of said sources in sequence to said video trunk means.
Claim 5
Dependent Claim
98 words
In a video-telephone communication system, an attendant position, a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, trunk means for extending a video and a telephone communication path from each of said stations to said attendant position, means for monitoring said trunk means, means controlled by said monitoring means for detecting each extension of said video and telephone communication path to said position, a source of video signals operable to transmit information indicating said extension, and means controlled by said detecting means for connecting said source to said trunk means.
Claim 6
Dependent Claim
98 words
In a video-telephone communication system, an attendant position, a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, trunk means for extending a video and a telephone communication path from each of said stations to said attendant position, means for monitoring said trunk means, means controlled by said monitoring means for detecting each extension of said video and telephone communication path to said position, a source of video signals operable to transmit information indicating said extension, and means controlled by said detecting means for connecting said source to said trunk means.
Claim 7
Dependent Claim
75 words
In a video-telephone communication system the combination set forth in claim 3 wherein said attendant position comprises other video and audio transmitting and receiving means and means for further extending said communication path to said other video and audio transmitting and receiving means, said detecting means further comprising means controlled by said monitoring means for detecting the enabling of said further extending means, and means controlled by said detecting means for releasing said connecting means.
Claim 8
Dependent Claim
80 words
In a video-telephone communication system the combination set forth in claim 4 wherein said attendant position comprises means for establishing a hold condition on said further extended communication path, said detecting means further comprising means controlled by said monitoring means for detecting the enabling of said establishing means, another source of video signals operable to transmit information indicating the enabling of said establishing means, and means controlled by said detecting means for connecting said other source to said trunk means.
Claim 9
Dependent Claim
59 words
In a video-telephone communication system the combination set forth in claim 5 wherein said attendant position further comprises means for releasing said establishing means, said detecting means further comprising means controlled by said monitoring means for detecting the release of said establishing means, and means controlled by said detecting means for releasing said other source from said trunk means.
Claim 10
Dependent Claim
143 words
In a video-telephone communication system comprising a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, means for extending a calling video communication path from a first said station to another of said stations, and means for extending a calling telephone communication path from said first station to said other station; means for visually informing said first station of the status of said calling communication paths comprising means common to all said stations for monitoring the said extending of said telephone communication path, means controlled by said monitoring means for detecting the occurrence of certain conditions occurring during the functioning of said telephone communication path extending means, a plurality of sources of video information, and switch means controlled by said detecting means for connecting selected ones of said sources in sequence to said video communication path.
Claim 11
Dependent Claim
143 words
In a video-telephone communication system comprising a plurality of stations each comprising video transmitting and receiving means and telephone transmitting and receiving means, means for extending a calling video communication path from a first said station to another of said stations, and means for extending a calling telephone communication path from said first station to said other station; means for visually informing said first station of the status of said calling communication paths comprising means common to all said stations for monitoring the said extending of said telephone communication path, means controlled by said monitoring means for detecting the occurrence of certain conditions occurring during the functioning of said telephone communication path extending means, a plurality of sources of video information, and switch means controlled by said detecting means for connecting selected ones of said sources in sequence to said video communication path.
References Cited (Backward Citations)
US3502812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |