Method and system for accessing multimedia data over public switched telephone network (US5625404)

Application Number	Filed	Pub. Date	Title
US1993000099381	1993-07-30	1996-06-18	Method and system for accessing multimedia data over public switched telephone network
US1993000042270	1993-04-02	1995-04-25	Video-on-demand services using public switched telephone network
US1991000766535	1991-09-27	1993-09-21	PSTN architecture for video-on-demand services
US1993000042107	1993-04-01


	Parent Case:			This application is a continuation of application Ser. No. 08/099,381 filed Jul. 30, 1993 now U.S. Pat. No. 5,528,281), which in turn is a continuation-in-part of application Ser. No. 08/042,270 filed Apr. 2, 1993 (now U.S. Pat. No. 5,410,343), a continuation-in-part of application Ser. No. 07/766,535 filed Sep. 27, 1991 (now U.S. Pat. No. 5,247,347) and a continuation-in-part of application Ser. No. 08/042,107 filed Apr. 1, 1993 (now abandoned).
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	First Claim: Show all 18 claims			What is claimed is: 1. A public switched telephone network for providing information from a multimedia information server to any one of a plurality of subscriber premises, comprising: a telephone company central office receiving multimedia information signals from a multimedia information server and subscriber orders from a prescribed subscriber, said central office including a gateway for providing routing data in response to subscriber orders and a switch for routing multimedia signals from said server to the prescribed subscriber in accordance with said routing data; a central office interface including a first multiplexer/demultiplexer unit for audio telephone service signals, subscriber control signals and digital multimedia information signals on, respectively, first, second and third signal channels; each said subscriber premises including a second multiplexer/demultiplexer unit for transmitting or receiving audio telephone service signals, subscriber control signals and digital multimedia information signals on, respectively, the first, second and third signal channels; and a plurality of subscriber local loops interconnecting a corresponding subscriber interface and said central office interface; wherein said subscriber interface includes a decoder for converting an incoming digital multimedia information signal to an analog signal having a video component and wherein said decoder includes a decompressor for decompressing the incoming digital multimedia information signal and producing an analog video signal and associated audio output signals.
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	Forward References:			Show 78 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (78) | Backward references (59) | Citation Link

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Foreign References:

Publication	Date	IPC Code	Assignee	Title
EP9212599	1992-07
GB2193420	1988-02	G07F 17/00	PETYARD LIMITED	Apparatus for distributing entertainment to subscribers
GB2207838	1989-02	H04M 11/08	* TELACTION CORPORATION	DIGITAL INTERACTIVE COMMUNICATION SYSTEM