Unisys Corporation

Judith L Culpepper

James Aridas

Nancy L Sweet

Kathleen A Giessuebel

Karen Wolff

Dennis A Perkinson

Gerald J Wardzinski

Linda Trout-Jordan

Michael H Penrod

Yi Lin

Pope P Trinidad

Tijen Ireland

Sherman R White, Jr

A platform for connecting to a CCS7 network for supporting concurrently running CCS related applications. Copies of the SUs flowing through the network are sent to the platform where the FISUs, LSSUs and MSUs are filtered to provide the desired SU type for each of the applications. The MSUs are filtered by MSU category and MSU type within category into groups of MSUs of particular interest to the applications, respectively. Linked lists of filter elements associated with the respective linksets of the CCS7 network perform the filtering by comparing category and type fields to the MSU categories and types to form the groups. Filter change data received at a user interface is utilized to modify the filters.

Extracting and processing data derived from a common channel signalling

In a network of computers having different operating systems with different message transport mechanisms, an interprocess communication layer (IPC) is interposed between applications hosted on the computers and the operating systems thereof. IPC presents a consistent interface to the application processes for message transport therebetween while linking to the intracomputer and intercomputer message transport mechanisms of the operating systems and the network. A process desiring to send or receive messages registers through a REGISTER function passing its system name and process identification (PID) assigned by the operating system to the process. To send a message, a process calls a SEND function passing the system name and system address of the recipient process. IPC attaches the recipient process PID to a message to be delivered. A process receives a message by invoking a RECEIVE function to receive its messages from the intracomputer communication mechanism of the host computer identified by the PID of the recipient process.

Interprocess communication apparatus interposed between application

Common channel signaling network applications platform

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Virginia Beach, VA, United States of America

Judith L Culpepper