Integrated services digital network (ISDN) system and multimedia data connection method in same system

• US 4,998,248 A
• Filed: 05/25/1989
• Issued: 03/05/1991
• Est. Priority Date: 05/27/1988
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Matsuzaki, Takanori
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): Chin, Wellington
• Application Number:
  US07/357,347
• Time in Patent Office: 649 Days
• Field of Search: 370/110.1, 370/60, 370/60.1, 370/58.1, 370/58.2, 370/58.3, 370/94.1, 370/94.2, 370/94.3, 358/442, 358/425
• US Class Current: 370/465
• CPC Class Codes: H04Q 11/0428 Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
• CPC Class Codes: Y10S 370/904 Integrated Services Digital Network, ISDN
• CPC Class Codes: Y10S 379/908 Multimedia

Claims