U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Wideband server, in particular for transmitting music or images

Patent 4956768 Issued on September 11, 1990. Estimated Expiration Date: Icon_subject February 24, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Input process sequence controller
Patent #: 4333143
Issued on: 06/01/1982
Inventor: Calder

Device for the digital transmission and display of graphics and/or of characters on a screen
Patent #: 4424572
Issued on: 01/03/1984
Inventor: Lorig ,   et al.

Pictorial information processing technique
Patent #: 4454593
Issued on: 06/12/1984
Inventor: Fleming ,   et al.

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Patent #: 4528643
Issued on: 07/09/1985
Inventor: Freeny, Jr.

Input/output system and method for digital computers
Patent #: 4591973
Issued on: 05/27/1986
Inventor: Ferris, III ,   et al.

Method and apparatus for transferring data between a disk and a central processing unit
Patent #: 4667286
Issued on: 05/19/1987
Inventor: Young ,   et al.

Acquisition and transmission system for a recorder and a computer center
Patent #: 4787063
Issued on: 11/22/1988
Inventor: Muguet

System for synchronizing digital bit stream for telecommunication system Patent #: 4789895
Issued on: 12/06/1988
Inventor: Mustafa ,   et al.

Inventors

Assignee

Application

No. 159767 filed on 02/24/1988

US Classes:

710/53Alternately filling or emptying buffers

Examiners

Primary: Shaw, Gareth D.
Assistant: Ray, Gopal C.

Attorney, Agent or Firm

International Classes

G06F 003/00
G06F 003/14
G06F 015/20

Foreign Application Priority Data

1987-02-25 FR

Abstract

A wideband server is defined by a main processor (10) communicating over a DMA channel (15) with a hard disk (16) and also with outlet cards (2-1 to 2-16). Each outlet card has its own processor which controls alternating mode to-processor access to two buffer memories A and B. While one of the buffer memories is delivering musical data to a user, the other is being filled, and vice versa.

Other References

  • Symposium Record CATV Sessings, juin 1985, pp. 438-445, Montreux; H. Seguin: "Progressive Introduction of New Services in a Broadband Network"* En entier
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