Patents by Inventor Robert L. Crumpley

Robert L. Crumpley 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).

  • Patent number: 5828652
    Abstract: In a telecommunication switching system having a plurality of switch nodes with each of the switch nodes responsive to a failure of a communication link within a group of communication links to establish a flexible rate interface (FRI) link upon there being no spare channels within the group of communication links and to switch active calls from the channels of the failed communication link to the channels of the newly established FRI link. Advantageously, the group of communication links can be a non-facility access service (NFAS) group. Advantageously, this allows for additional B channels to be added to the NFAS group even though there are no remaining physical communication links between the two switch nodes being interconnected by the NFAS group. The establishment of the FRI link allows for the addition of B channels to the NFAS group with these B channels being routed through other switch nodes of the communication switching system.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: October 27, 1998
    Assignee: Lucent Technologies, Inc.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5416834
    Abstract: A telecommunication protocol message that allows redirection of a call received by a first telephone station set to a second telephone station set or other terminal equipment by the first telephone station set transmitting the redirect message to a telecommunication system connected to the first telephone station set. The redirect message includes the identification of the user of the first telephone station set as well as the telephone number of the second telephone station set or terminal equipment. The telecommunication switching system is responsive to the redirect message to reroute a call to the second telephone set. The redirect message allows the first station set to transmit only one message to the telecommunication switching system to accomplish the functions of rerouting the call. In addition, the redirect message gives a BRI (basic rate interface) station set the capability of automatically forwarding certain types of calls.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: May 16, 1995
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5390242
    Abstract: Routing calls using a new protocol message which is a redirect message in a telecommunication system having a number of switching nodes to avoid circular paths among the switching nodes and for rerouting calls in the event of failures or overload conditions. During the establishment of a call from an originating switching node to a destination switching node where the call path has already been setup from the originating switching node through an intermediate switching node, a switching node is responsive to a setup message from the intermediate switching node requesting extension of the call path through the switching node to determine if such an extension would create a circular path. If circular path would be created, the switching node redirects the call (by using the redirect message) back to the intermediate switching node and indicates in that message to which switching node the call path should be extended. In response to the redirect message, the intermediate switching node reroutes the call path.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: February 14, 1995
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5390241
    Abstract: Allowing a shared line appearance feature to be implemented on a plurality of telephone station sets which are connected to different telecommunication switching systems. The telecommunication switching systems can be interconnected to each other via the public telephone network utilizing standard telecommunication links. A software application program provides a termination point for a directory number that is associated with a shared line appearance. The software application program receives all incoming calls directed to the directory number and determines the operations that should be performed with respect to the telephone station sets terminating the shared line appearance. The software application program directs the incoming calls to the telephone stations sets regardless to which telecommunication system each of the telephone station sets is interconnected.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: February 14, 1995
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Stephen M. Thieler
  • Patent number: 5386466
    Abstract: A communication switching system having a plurality of switching nodes in which each switching node upon initialization completely establishes its own internal configuration. This establishment of internal configuration includes the number and type of switching modules and within each switching module: type of module control processor, type of internal switching network, printed board carriers, type and number of auxiliary circuits, and type and number of link interfaces. Each unit of a switching module reports relevant information to the module control processor; and in turn, the module control processor reports its own information and the information of the other units to a node processor (the main processor within a switching node). Further, each switching node and interfaces of the switching node automatically identifies the other switching nodes connected by communication links and switching paths to those switching nodes.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: January 31, 1995
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5377262
    Abstract: A telecommunication switching system having switching nodes that perform adaptive routing by utilizing the fact that the switching nodes are arranged in a first and a second hierarchy. In addition, each switching node maintains routing information based on telephone and switching node numbers which identify the switching nodes. A destination switching node transfers its routing information back to an originating switching node which combines that routing information with its own in order to determine shorter call paths for subsequent call routing. The first hierarchy is a dialing plan hierarchy having groups of switching nodes at each dialing plan level. The second hierarchy is a switching node hierarchy based on the switching node number of each switching node with at least one switching node of the switching node hierarchy being at a different level in the dialing plan hierarchy.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: December 27, 1994
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5375167
    Abstract: A system for distributing a numbering plan to switching nodes which are organized in a dialing plan hierarchy and for allowing an individual switching node to redistribute blocks of numbers to other switching nodes upon requests from those switching nodes to own the requested blocks of numbers. Further, the dialing plan hierarchy is automatically established upon system initialization with each switching node determining its position in that hierarchy. In addition, a switching node that needs to use only one number of a block owned by another switching node can request permission from the other switching node to use that telephone number for a telephone connected to the switching node. Such a use is referred to as hosting the telephone number.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: December 20, 1994
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5373549
    Abstract: A multi-level conference in which an originator of a telephone conference of the multi-level conference controls the parties that can be added to that conference and can terminate any party at any time. Further, if two existing telephone conferences are combined together to form the multi-level conference, the party that originated the combining of these two conference calls can control not only the parties on its conference call but can disconnect all of the parties on the second conference call. In addition, the control of the conference resides in the telephone terminals being utilized by the participants, rather than in a centralized service computer. Information concerning the conference and control of the conference is communicated between the telephone terminals utilizing the standard telecommunication communication control channel and does not require the establishment of a separate data call to a centralized service computer.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: December 13, 1994
    Assignee: AT&T Corp.
    Inventors: Bruce M. Bales, Robert L. Crumpley, Donald D. Gallagher, Stephen M. Thieler
  • Patent number: 5185742
    Abstract: A remote telecommunication terminal providing telecommunication functions identical to those functions provided by local telecommunication terminal directly connected to a telecommunications system via a direct standard link using a standard protocol. The remote telecommunication terminal is interconnected to the telecommunication system through an intervening switching system such as the public telephone network. One such remote telecommunication terminal is a remote telemarketing terminal. A remote telemarketing terminal cooperates with the telemarketing system to establish a virtual interface on the telemarketing system. The telemarketing system views this virtual interface as being identical to a physical interface such as one connected to a local telemarketing terminal via a standard link. The remote telemarketing terminal then establishes a virtual link between itself and the virtual interface on the telemarketing system.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: February 9, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5182751
    Abstract: A switching architecture with identical switching nodes having a topology which allows for multiple paths between any two endpoint switching nodes without intervening switching nodes being involved in call control on those paths. This architecture is made feasible by a new type of link, the flexible rate interface (FRI) link. The FRI link has its own signaling channel distinct from the signaling channel of a standard link and is transparent to intervening switching nodes. Only endpoint switching nodes are aware of the existence of the FRI link with respect to call control. A standard protocol is utilized on the signaling channels of both the standard link and the FRI link. Advantageously, the standard link may be an ISDN link and the standard protocol may be the ISDN protocol.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: January 26, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5182750
    Abstract: A switching architecture interconnecting remote switches to a central processor via standard links which may be set up through any number of intervening switching systems utilizing standard switching procedures. The standard links are ISDN links that may be set up dynamically via switching networks within the switching system or via the public switching network. The fact that an ISDN goes through a portion of the switching system or the public switching network is transparent to both the central processor and remote switch. Upon detecting that a primary central processor is no longer in control, each remote switch attempts to obtain an alternate path to the primary central processor. If a remote switch is unable to obtain an alternate path to the primary central processor, the remote switch switches to an alternate central processor on the assumption that the primary central processor has failed.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: January 26, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler
  • Patent number: 5159594
    Abstract: An apparatus for establishing a flexible rate interface (FRI) link on a standard ISDN link. The FRI link has its own signaling channel that is distinct from the signaling channel of the standard ISDN link, and the signaling channel of the FRI link is transparent to intervening switching systems. There are no geographical restrictions on a FRI link. The signaling channel of a FRI link may be established by designating a B channel of a standard link, by using a logical link of a D channel of a standard ISDN link, or by using standard ISDN user information transport facilities to communicate the signaling channel. FRI transport channels are B channels of a standard ISDN link or subchannels of a B channel.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: October 27, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Bruce M. Bales, Robert L. Crumpley, Sandra S. North, Stephen M. Thieler