Multi-purpose WAN driver for DSP resource adapter

Details Multi-purpose WAN driver for DSP resource adapter Multi-purpose WAN driver for DSP resource adapter

1999-03-11

2003-04-15

Oda, Christine (Department: 2858)

Electrical computers and digital processing systems: multicomput

Computer network managing

Network resource allocating

C709S235000

Reexamination Certificate

active

06549945

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates in general to communications processing systems, and more particularly to digital signal processor (“DSP”) based communications cards.
2. Description of the Prior Art
This application deals with technology related to that in U.S. patent application Ser. No. 08/944,209, filed on Oct. 6, 1997 and now U.S. Pat. No. 5,968,158. That application is entitled “A DSP-based, Multi-bus, Multiplexing Communications Adapter,” has a common assignee with the present invention, and its disclosure is incorporated herein by reference. That co-pending application describes a pair of communications adapters, which each includes a number of DSPs and network interface circuits for the attachment of a multi-channel telephone line. A bus connecting the communications adapters can carry data between a network line attached to one of the adapters and the DSPs of the other adapter. The DSPs on each card are connected to a host, or controller, processor. Each DSP interrupts its host processor by transmitting an interrupt control block as data to a data memory of the host processor, and by subsequently sending an interrupt causing the host processor to examine the data memory. Preferably, the interrupt control block includes data representing a number of requested interrupts.
This application deals with technology that is also related to that in U.S. patent application Ser. No. 08/979,531 now U.S. Pat. No. 6,178,180. That application is entitled “Communications Adapter for Processing ATM and ISDN Data,” has a common assignee with the present invention, and its disclosure is incorporated herein by reference. That co-pending application describes a pair of communications adapters, which each include a network interface and a signal processing means. Each adapter can process data in either Integrated Services Digital Network (“ISDN”) format or Asynchronous Transfer Mode (“ATM”) format. Each signal processing means preferably includes a pair of DSPs.
In the known prior art, DSP Adapters for communications applications, such as for telephone communications, typically have utilized custom hardware and firmware that may require significant modifications in hardware and firmware to implement changes in communication protocols, data types, and other changes in operational parameters. Interfaces to these DSP Adapters have not been very flexible to adapt to these changes as may be necessary for new applications.
Accordingly, there is a need for a method and apparatus for increasing the flexibility of interfaces of DSP Adapters for varying applications and for overcoming the limitations in the prior art.


REFERENCES:
patent: 4991169 (1991-02-01), Davis et al.
patent: 5764895 (1998-06-01), Chung
patent: 5771232 (1998-06-01), Sinibaldi et al.
patent: 5968158 (1999-10-01), Andrews et al.
patent: 6009507 (1999-12-01), Brooks et al.
patent: 6134229 (2000-10-01), Schwaller et al.
patent: 6134605 (2000-10-01), Hudson et al.
patent: 6320867 (2001-11-01), Bellenger et al.
patent: 6338130 (2002-01-01), Sinibaldi et al.
U.S. patent application Ser. No. 09/262,433, Sinibaldi et al., filed Mar. 4, 1999.
U.S. patent application Ser. No. 08/979,531, filed Nov. 26, 1997, pending.
ARTIC690 Modem MUX Mezzanine Card Technical Reference, IBM, Release 1, Version, First Edition, Dec. 1997.
ARTIC690 4-Port Selectrable PMC, Technical Reference, IBM, Release 1, Version 1, First Edition, Nov. 1997.
“SC4000 Universal T imeslot Interchange”, VLSI Technology, Inc., Sep. 1996, pp. 6-9.
Mwave Developers Toolkit, “Overview of the Mwave Technology Platform” Intermetrics, Inc., 1993, pp. 1-7.
“Structured Computer Organization”, Tanenbaum, A.S., 2ndEdition, Prentice-Halll, Inc., 1984, pp. 336-338.
“Sweet Open Irony”, Computer Telephony, Margulies, E., Dec. 1998, pp. 150-151.

Affiliated with

Also associated with

Rating

Multi-purpose WAN driver for DSP resource adapter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-purpose WAN driver for DSP resource adapter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-purpose WAN driver for DSP resource adapter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3110816