Patent
Method and system for accessing multimedia data over public switched telephone network
TLDR
In this article, a public switched telephone network for providing information from a multimedia information server to any one of a plurality of subscriber premises, comprises a central office receiving multimedia information signals from an information server and orders from a prescribed subscriber, and a switch for routing multimedia signals from the server to the prescribed subscriber in accordance with the routing data.Abstract:
A public switched telephone network for providing information from a multimedia information server to any one of a plurality of subscriber premises, comprises a central office receiving multimedia information signals from a multimedia information server and orders from a prescribed subscriber. The central office includes a gateway system for conveying routing data in response to subscriber orders and a switch for routing multimedia signals from the server to the prescribed subscriber in accordance with the routing data. An interface at the central office transmits and receives audio telephone service signals, subscriber control signals and digital multimedia information signals on first, second and third signal channels. Each subscriber premises includes an interface for transmitting and receiving audio telephone service signals, subscriber control signals and digital multimedia information signals on the three signal channels. A plurality of subscriber local loops interconnect each subscriber interface and the central office interface. Multimedia information is collected from information providers and stored at media servers that provide a library of data and control sessions. Software modules at the media servers and resident terminals enable interactive multimedia session building, sharing of databases and joint authoring of multimedia presentations.read more
Citations
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TL;DR: In this article, asymmetrical digital subscriber line interface units over a local loop were proposed to provide digital transmission connectivity between the central office and the subscriber for conventional telephone instrument connectivity in a public switched telephone network (PSTN).
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References
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Patent
Audio and video transmission and receiving system
Paul Yurt,H. Lee Browne +1 more
TL;DR: In this paper, a system of distributing video and audio information employs digital signal processing to achieve high rates of data compression, and the compressed and encoded audio and video information is sent over standard telephone, cable or satellite broadcast channels to a receiver specified by a subscriber of the service, preferably in less than real time, for later playback and optional recording on standard audio and/or video tape.
Patent
Pstn architecture for video-on-demand services.
Larry A Litteral,Gold Jeffrey B,Klika Donald C,Konkle Daniel B,Coddington Carl D,Mchenry James M,Richard Arthur A +6 more
TL;DR: In this article, asymmetrical digital subscriber line interface units over a local loop were proposed to provide digital transmission connectivity between the central office and the subscriber for conventional telephone instrument connectivity in a public switched telephone network (PSTN).
Patent
Multimedia bidirectional broadcast system
TL;DR: In this paper, a multimedia bidirectional broadcast system including a broadcast station (115) and subscriber terminals (116) is presented, which includes a main control unit (106) having therein a data base control table (134) in which program and commercial down load sequences are recorded depending on a setting effected by a subscriber, a motion picture pro-gram data base (102), a commercial data base(131), a program transmitter (103) for effecting accesses and transmissions of transmission programs onto transmission lines, and an asynchronous transfer mode exchange (109) for delivering
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Video communications system having a remotely controlled central source of video and audio data
TL;DR: In this article, a video communications system is provided that makes it possible for home viewers to download a movie in digital format from a large archive library, store the digital movie file locally, and view the movie at any convenient time.
Patent
Video-on-demand services using public switched telephone network
Coddington Carl D,Bernard J. Craig,Larry A. Litteral,Richard Arthur A,Gold Jeffrey B,Klika Donald C,Konkle Daniel B,Mchenry James M +7 more
TL;DR: In this article, a public switched telephone network (PSTN) provides digital video signals from a video information provider or digital service bureau to one or more of a plurality of subscriber premises.