Patents by Inventor Robert L. Packer

Robert L. Packer 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: 6928052
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: August 9, 2005
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Publication number: 20040174886
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Inventor: Robert L. Packer
  • Patent number: 6741563
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: May 25, 2004
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6591299
    Abstract: In packet communication, a method for automatically classifying packet flows for use in allocating bandwidth resources and the like by a rule of assignment of a service level. By rendering discoverable the attributes of a flow specification for packet flows, a finer grained hierarchy of classification is provided automatically that is based on information which is specific to the type of program or application supported by the flow and thus allowing greater flexibility in control over different flows within the same application. The method comprises applying individual instances of traffic classification paradigms to packet network flows based on selectable information obtained from a plurality of layers to define a characteristic class, then mapping the flow to the defined traffic class. The flow specification is provided with some application-specific attributes, some of which are discoverable.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 8, 2003
    Assignee: Packeteer, Inc.
    Inventors: Guy Riddle, Robert L. Packer, Mark Hill
  • Publication number: 20020143939
    Abstract: In packet communication, a method for automatically classifying packet flows for use in allocating bandwidth resources and the like by a rule of assignment of a service level. By rendering discoverable the attributes of a flow specification for packet flows, a finer grained hierarchy of classification is provided automatically that is based on information which is specific to the type of program or application supported by the flow and thus allowing greater flexibility in control over different flows within the same application. The method comprises applying individual instances of traffic classification paradigms to packet network flows based on selectable information obtained from a plurality of layers to define a characteristic class, then mapping the flow to the defined traffic class. The flow specification is provided with some application-specific attributes, some of which are discoverable.
    Type: Application
    Filed: May 24, 2002
    Publication date: October 3, 2002
    Applicant: Packeteer, Inc.
    Inventors: Guy Riddle, Robert L. Packer, Mark Hill
  • Patent number: 6457051
    Abstract: In a packet communication environment, a method is provided for automatically classifying packet flows for use in allocating bandwidth resources by a rule of assignment of a service level. The method comprises applying individual instances of traffic classification paradigms to packet network flows based on selectable information obtained from a plurality of layers of a multi-layered communication protocol in order to define a characteristic class, then mapping the flow to the defined traffic class. It is useful to note that the automatic classification is sufficiently robust to classify a complete enumeration of the possible traffic.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: September 24, 2002
    Assignee: Packeteer, Inc.
    Inventors: Guy Riddle, Robert L. Packer
  • Patent number: 6456630
    Abstract: In a packet telecommunications environment, a method is provided for end to end explicit rate control through a plurality of heterogeneous internetworked networking topologies comprising networks without explicit rate signaling, such as TCP/IP based LAN subnets, and networks with explicit network layer rate signaling, such as Frame Relay permanent or switched virtual circuits (PVC/SVC) or ATM available bit rate (ABR) services by reallocating bandwidth in a partition using a Committed Information Rate of the portion comprising the virtual circuits for a partition size. In specific embodiments, the invention may exist as an integrated device, such as an enhanced FRAD, or a bandwidth management device, which detects congested network conditions from information obtained indirectly from a FRAD or network edge device using techniques such as reading the network edge device's MIB.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: September 24, 2002
    Assignee: Packeteer, Inc.
    Inventors: Robert L. Packer, Brett D. Galloway, Ted Thi
  • Patent number: 6412000
    Abstract: In a packet communication environment, a method is provided for automatically classifying packet flows for use in allocating bandwidth resources by a rule of assignment of a service level. The method comprises applying individual instances of traffic classification paradigms to packet network flows based on selectable information obtained from a plurality of layers of a multi-layered communication protocol in order to define a characteristic class, then mapping the flow to the defined traffic class. It is useful to note that the automatic classification is sufficiently robust to classify a complete enumeration of the possible traffic.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: June 25, 2002
    Assignee: Packeteer, Inc.
    Inventors: Guy Riddle, Robert L. Packer
  • Publication number: 20020055998
    Abstract: In a packet communication environment, a method is provided for automatically classifying packet flows for use in allocating bandwidth resources by a rule of assignment of a service level. The method comprises applying individual instances of traffic classification paradigms to packet network flows based on selectable information obtained from a plurality of layers of a multi-layered communication protocol in order to define a characteristic class, then mapping the flow to the defined traffic class. It is useful to note that the automatic classification is sufficiently robust to classify a complete enumeration of the possible traffic.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 9, 2002
    Applicant: Packeteer, Inc.
    Inventors: Guy Riddle, Robert L. Packer
  • Publication number: 20020031088
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Application
    Filed: August 31, 2001
    Publication date: March 14, 2002
    Applicant: Packeteer
    Inventor: Robert L. Packer
  • Patent number: 6298041
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: October 2, 2001
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6285658
    Abstract: In a packet communication environment, a method is provided for classifying packet network flows for use in determining a policy, or rule of assignment of a service level, and enforcing that policy by direct rate control. The method comprises applying individual instances of traffic objects, i.e., packet network flows to a classification model based on selectable information obtained from a plurality of layers of a multi-layered communication protocol, then mapping the flow to the defined traffic classes, which are arbitrarily assignable by an offline manager which creates the classification. It is useful to note that the classification need not be a complete enumeration of the possible traffic.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: September 4, 2001
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6205120
    Abstract: A method is provided for optimally setting the receiver window size in a flow controlled protocol in order to minimize queuing in a packet telecommunications network. Embodiments according to the present invention are operable at an explicit path to identify per connection information from host address or physical interface, flow direction, or any combination of these elements. The present invention may function in conjunction with a rate detection method that determines both a message serialization delay component and a data size invariant delay component.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: March 20, 2001
    Assignee: Packeteer, Inc.
    Inventors: Robert L. Packer, Guy Riddle
  • Patent number: 6115357
    Abstract: A method for pacing data flows in packet switched networks by arranging data transmission over a period of time based upon a set of ascertainable factors about the underlying transmission link to derive an intersegment transmission interval. The intersegment transmission interval can be used to pace either data packets or acknowledgment packets. The method is especially useful for pacing the transmission of data in a digital data packet communication environment having a plurality of digital packet transmission stations inter-connectable in a data path and employing the Transmission Control Protocol (TCP) suite.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: September 5, 2000
    Assignee: Packeteer, Inc.
    Inventors: Robert L. Packer, Brett D. Galloway
  • Patent number: 6104727
    Abstract: An asymmetric network communication system for use in a client-host environment having independent forward and return channels operating at different speeds and/or under different protocols on the same or different communication media to provide efficient utilization of shared resources. A network manager, such as a hybrid access system, effects transmission of packetized data on a forward (downstream) channel from the host server to multiple client devices coupled with a shared downstream media at 10 or more megabits per second while simultaneously providing selectable multiple lower speeds of operation on shared or dedicated return (upstream) channels from the client devices to the host server depending on bandwidth availability, bandwidth demand, service level authorization, etc, for the return channel.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: August 15, 2000
    Assignee: Hybrid Networks, Inc.
    Inventors: Eduardo J. Moura, Jan Maksymilian Gronski, Robert L. Packer, Robert A. Luxenberg, Frederick Enns
  • Patent number: 6046980
    Abstract: In a packet communication environment, a method is provided for classifying packet network flows for use in determining a policy, or rule of assignment of a service level, and enforcing that policy by direct rate control. The method comprises applying individual instances of traffic objects, i.e., packet network flows to a classification model based on selectable information obtained from a plurality of layers of a multi-layered communication protocol, then mapping the flow to the defined traffic classes, which are arbitrarily assignable by an offline manager which creates the classification. It is useful to note that the classification need not be a complete enumeration of the possible traffic.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 4, 2000
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6038216
    Abstract: A method for explicit data rate control is introduced into a packet communication environment (10) which does not have data rate supervision by adding latency to the acknowledgment (ACK) packet and by adjusting the size of the flow control window associated with the packet in order to directly control the data rate of the source data at the station (12 or 14) originating the packet.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: March 14, 2000
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6018516
    Abstract: A method is provided for preventing gratuitous retransmission of data from being propagated through a network which includes holding data to be retransmitted for a minimum time period. If an acknowledgment occurs while the retransmitted data is still being held, then the retransmitted data is discarded rather than propagated through the network. The invention also provides for selectively holding retransmissions based upon ascertainable factors about the underlying connection activity, such as number of successful transmissions.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: January 25, 2000
    Assignee: Packeteer, Inc.
    Inventor: Robert L. Packer
  • Patent number: 6005850
    Abstract: An asymmetric network communication system for use in a client-server environment having independent forward and return channels operating at different speeds and/or under different protocols on the same or different communication media to provide efficient utilization of shared resources. A network manager, such as a hybrid access system, effects transmission of packetized data on a forward (downstream) channel from the host server to multiple client devices coupled with a shared downstream media at 10 or more megabits per second while simultaneously providing selectable multiple lower speeds of operation on shared or dedicated return (upstream) channels from the client devices to the host server depending on bandwidth availability, bandwidth demand, service level authorization, etc. for the return channel.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: December 21, 1999
    Assignee: Hybrid Networks, Inc.
    Inventors: Eduardo J. Moura, Jan Maksymilian Gronski, Robert L. Packer, Robert A. Luxenberg, Frederick Enns
  • Patent number: 5959997
    Abstract: A hybrid access system and method using a hybrid access system point of presence router and a remote link adapter to connect a user computer terminal to a network for fast downstream information transfer by high speed information broadcasting with lower speed upstream information transfer through an independent upstream channel to the hybrid access system point of presence router. High speed downstream information transfer passes through a cable TV headend or a TV transmitter or a cell station.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 28, 1999
    Assignee: Hybrid Networks, Inc.
    Inventors: Eduardo J. Moura, Jan Maksymilian Gronski, Robert L. Packer, Robert A. Luxenberg, Frederick Enns