Patents by Inventor R. David Freedman

R. David Freedman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Service Level Executable Environment for Integrated PSTN and IP Networks and Call Processing Language Therefor
    Publication number: 20110194556
    Abstract: A service level executable environment (SLEE) in a telecommunications network linking a PSTN and a packet (e.g., IP) network is provided. The SLEE includes a scripting language, a compiler adapted to compile scripts written with said scripting language into executables, and a plurality of dynamically loaded shared libraries, wherein the dynamically loaded shared libraries are distributed over the IP network and executables can utilize dynamically loaded shared libraries from different locations in the IP network.
    Type: Application
    Filed: April 22, 2011
    Publication date: August 11, 2011
    Inventors: David Butler, R. David Freedman
  • Service level executable environment for integrated PSTN and IP networks and call processing language therefor
    Patent number: 7934206
    Abstract: A service level executable environment (SLEE) in a telecommunications network linking a PSTN and a packet (e.g., IP) network is provided. The SLEE includes a scripting language, a compiler adapted to compile scripts written with said scripting language into executables, and a plurality of dynamically loaded shared libraries, wherein the dynamically loaded shared libraries are distributed over the IP network and executables can utilize dynamically loaded shared libraries from different locations in the IP network.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 26, 2011
    Assignee: Convergent Networks, Inc.
    Inventors: David Butler, R. David Freedman
  • Methods and systems for creating, distributing and executing multimedia telecommunications applications over circuit and packet switched networks
    Patent number: 7304984
    Abstract: A service creation switch (114) supports both tightly coupled and loosely distributed application server (AS) (126) functions, with the tightly coupled AS (126) functions residing in the switch (114), and the loosely coupled AS (126) functions carried out in a service level executable environment (SLEE) (34). The SLEE (134) utilizes DLLs to facilitate the distribution of services over a packet network.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: December 4, 2007
    Assignee: Convergent Networks, Inc.
    Inventors: David Butler, R. David Freedman, Del Stevens
  • Service level executable environment for integrated pstn and ip networks and call processing language therefor
    Publication number: 20030161296
    Abstract: This invention relates to the field of telecommunications. More particularly, this invention is a method and system for providing a service level executable environment in a telecommunications network linking a PSTN and a packet network. With reference to FIG. 3, the service level executable environment (34) includes a scripting language, a compiler adapted to compile scripts written with the scripting language, and a plurality of dynamically loaded shared libraries, wherein the dynamically loaded shared libraries are distributed over the IP network (107) and executables from the compiler can utilize dynamically loaded shared libraries from different locations in the IP network (107). The invention includes signaling gateways (10) connected to an SS7 network (90) for support of PSTN (92) signaling; service switches (14) coupled to the signaling gateways; and media gateways (16) for interworking the IP network (107) and the PSTN (92).
    Type: Application
    Filed: July 18, 2002
    Publication date: August 28, 2003
    Inventors: David Butler, R. David Freedman
  • Methods and systems for creating, distributing and executing multimedia telecommunications applications over circuit and packet switched networks
    Publication number: 20030012183
    Abstract: A service creation switch (114) supports both tightly coupled and loosely distributed application server (AS) (126) functions, with the tightly coupled AS (126) functions residing in the switch (114), and the loosely coupled AS (126) functions carried out in a service level executable environment (SLEE) (34). The SLEE (134) utilizes DLLs to facilitate the distribution of services over a packet network.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 16, 2003
    Inventors: David Butler, R. David Freedman, Del Stevens