Patents by Inventor Bradley R. Schaefer

Bradley R. Schaefer 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).

  • Session initiation protocol compression
    Publication number: 20030145115
    Abstract: An arrangement for compressing (20) and uncompressing (40) system set up messages between a client and a server employing Session Initiation Protocol transmits a template (200) between client (10) and server (30). A template is pre-placed (78) by clients or servers with other clients or servers. During execution time when a client requests services by connecting to a server only a minimal template (106) is transmitted from client to server. The server then reconstructs (40) the original uncompressed message.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Inventors: William R. Worger, Peter J. Armbruster, Bradley R. Schaefer, Mark L. Shaughnessy
  • Roaming services using home location register
    Publication number: 20030100303
    Abstract: A distributed home location register (DHLR) (102-104) authorizes roaming services agreement electronically for a user (1) in a foreign network (120). A home network 100 has a network HLR 101 which records the roaming agreement and charges for billing user (1). A visitor location register (VLR) (122) then charges user (1) for services while in the foreign network (120) according to the roaming services agreement.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Inventors: Peter J. Armbruster, Stephen D. Magee, Bradley R. Schaefer
  • User controlled home location register
    Publication number: 20030100302
    Abstract: A personal home location register (HLR) (10-20) is modifiable directly by a user. The personal HLR then communicates with a telecommunications service provider (30) to directly affect changes in the personal HLR. The network HLR (70) of the telecommunications service provider simply points to the personal HLR of the user.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Inventors: Peter J. Armbruster, Stephen D. Magee, Bradley R. Schaefer
  • Common services and applications agent
    Publication number: 20020186684
    Abstract: A common services and applications agent (10) handles a number of input sources of voice and data information (11-16). These sources of voice and data information are converted (20) to session initiation protocol. The session initiation protocol for the voice and data information is provided to the communication network (40).
    Type: Application
    Filed: June 7, 2001
    Publication date: December 12, 2002
    Applicant: Motorola, Inc.
    Inventors: Mark L. Shaughnessy, Peter J. Armbruster, Bradley R. Schaefer
  • Conference call bridge arrangement
    Publication number: 20020141383
    Abstract: A user terminal (10) initiates an internet protocol using session initiation protocol to interconnect a number of user terminals (11-13) in a conference call. Signaling connections (41, 42, and 43) are established between one user terminal and each of the plurality of user terminals. Common bearer formats are negotiated among the plurality of user terminals (113). If a common bearer format exists (115), the conference bridge is established for data (voice) transmission (127).
    Type: Application
    Filed: March 27, 2001
    Publication date: October 3, 2002
    Applicant: Motorola, Inc.
    Inventors: Bradley R. Schaefer, Mark L. Shaughnessy, Peter J. Armbruster
  • Token passing arrangement for a conference call bridge arrangement
    Publication number: 20020136166
    Abstract: A user terminal (10) using an internet protocol using session initiation protocol to interconnect a number of user terminals (11-13) in a conference call. A conference bridge (30) or user terminal (10) detects speech of one of the user terminals (203). A “babble ” timer is started (207). The speaker is allowed to continuously speak until silence is detected (217) or until the “babble” timer timers out (211).
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Applicant: Motorola, Inc.
    Inventors: Peter J. Armbruster, Bradley R. Schaefer, Mark L. Shaughnessy