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

Multimedia frame relay codec

Patent 5519640 Issued on May 21, 1996. Estimated Expiration Date: Icon_subject January 26, 2014. 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

3587058

3825899

3868481

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Patent #: 4768188
Issued on: 08/30/1988
Inventor: Barnhart ,   et al.

Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
Patent #: 4817089
Issued on: 03/28/1989
Inventor: Paneth ,   et al.

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Patent #: 4975906
Issued on: 12/04/1990
Inventor: Takiyasu, et al.

Communication network system having a plurality of different protocal LAN's
Patent #: 5086426
Issued on: 02/04/1992
Inventor: Tsukakoshi, et al.

Local area network transmission emulator
Patent #: 5280481
Issued on: 01/18/1994
Inventor: Chang, et al.

Frame relay system capable of handling both voice and data frames Patent #: 5303237
Issued on: 04/12/1994
Inventor: Bergman, et al.

Inventors

Application

No. 192463 filed on 01/26/1994

US Classes:

709/236, Computer-to-computer data framing709/231, Computer-to-computer data streaming709/234Data flow compensating

Examiners

Primary: Ramirez, Ellis B.

Attorney, Agent or Firm

International Class

H04J 003/24

Abstract

A multimedia codec for a frame relay network. Multiple information media from different sight equipment is converted to a standard packet for transmission over said frame relay network. Incoming frames are processed on a priority basis and stored in an elastic buffer. Tests of pointers are kept for each media type identifying the location in the elastic buffer of the various packets for the different media. Applications running in the frame relay processor retrieve the stored media data and forward it to a digital signal processor connected to respective terminal equipment.

Other References

  • Dettmer; "Frame Relay the Networker Express" IEEE Review (1992)
  • Cavanagh; "Applying the Frame Relay Interface to Private Networks" IEEE Communications Magazine (1992)
  • Pereira et al; "Video, Sampling and Network Synchronization in a TV Codec." Melecon, Mediterranean Electrical Conf., 1991
  • Huang et al; "Evolution and Integration of a Multi-Media Communication Network"; IEEE Communications, Conf., 1989
  • Hartung et al; "Implementation of the CCITT Wideband Coder Using a High Performance, Fixed Point DSP." IEEE Acoustics 1988
  • Cooper; "Network Technology for Multimedia", IEEE Colloq. 1992
  • Atkins et al; "Whither Broadband--A Perspective on Wide-Area Networking"; Broadband Services, Systems, and Networks (1993
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