Patents by Inventor Chi-Chung K. Chen
Chi-Chung K. Chen 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).
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Publication number: 20120263178Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.Type: ApplicationFiled: June 26, 2012Publication date: October 18, 2012Applicant: JUNIPER NETWORKS, INC.Inventors: Pradeep SINDHU, Debashis BASU, Pankaj PATEL, Raymond LIM, Avanindra GODBOLE, Tatao CHUANG, Chi-Chung K. CHEN, Jeffrey G. LIBBY, Dennis FERGUSON, Philippe LACROUTE, Gerald CHEUNG
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Patent number: 8233496Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.Type: GrantFiled: March 12, 2010Date of Patent: July 31, 2012Assignee: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Debashis Basu, Pankaj Patel, Raymond Lim, Avanindra Godbole, Tatao Chuang, Chi-Chung K. Chen, Jeffrey G. Libby, Dennis Ferguson, Philippe Lacroute, Gerald Cheung
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Patent number: 7978609Abstract: A packet scheduler is configured to perform quality of service (QoS) scheduling on a per-data unit basis. A downstream processing engine is operatively connected to the packet scheduler for receiving forwarded packets. A feedback path is operatively connected between the downstream processing engine and the packet scheduler for transmitting a net data unit change value reflecting a change in packet size between an output of the packet scheduler and an output of the downstream processing engine.Type: GrantFiled: May 22, 2009Date of Patent: July 12, 2011Assignee: Juniper Networks, Inc.Inventors: Sreeram Veeragandham, Rami Rahim, Song Zhang, Anurag P. Gupta, Jorge Cruz-Rios, Jayabharat Boddu, Jeffrey R. Zimmer, Jia-Chang Wang, Srihari Shoroff, Chi-Chung K. Chen
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Publication number: 20100165990Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.Type: ApplicationFiled: March 12, 2010Publication date: July 1, 2010Applicant: Juniper Networks, Inc.Inventors: Pradeep SINDHU, Debashis BASU, Pankaj PATEL, Raymond LIM, Avanindra GODBOLE, Tatao CHUANG, Chi-Chung K. CHEN, Jeffrey G. LIBBY, Dennis FERGUSON, Philippe LACROUTE, Gerald CHEUNG
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Patent number: 7710994Abstract: A network device constructs a notification corresponding to a received multicast data unit, where the notification includes administrative data associated with the multicast data unit that does not include a payload of the multicast data unit. The network device replicates the notification at least three different processing elements at different locations in a processing path of the network device to produce multiple replicated data items and produces a copy of the multicast data unit for each of replicated notifications. The network device forwards each copy of the multicast data unit towards a multicast destination.Type: GrantFiled: September 12, 2007Date of Patent: May 4, 2010Assignee: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Debashis Basu, Pankaj Patel, Raymond Lim, Avanindra Godbole, Tatao Chuang, Chi-Chung K. Chen, Jeffrey G. Libby, Dennis Fersuson, Philippe Lacroute, Gerald Cheung
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Publication number: 20090245246Abstract: A packet scheduler is configured to perform quality of service (QoS) scheduling on a per-data unit basis. A downstream processing engine is operatively connected to the packet scheduler for receiving forwarded packets. A feedback path is operatively connected between the downstream processing engine and the packet scheduler for transmitting a net data unit change value reflecting a change in packet size between an output of the packet scheduler and an output of the downstream processing engine.Type: ApplicationFiled: May 22, 2009Publication date: October 1, 2009Applicant: JUNIPER NETWORKS, INC.Inventors: Sreeram Veeragandham, Rami Rahim, Song Zhang, Anurag P. Gupta, Jorge Cruz-Rios, Jayabharat Boddu, Jeffrey R. Zimmer, Jia-Chang Wang, Srihari Shoroff, Chi-Chung K. Chen
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Patent number: 7554919Abstract: A packet scheduler is configured to perform quality of service (QoS) scheduling on a per-data unit basis. A downstream processing engine is operatively connected to the packet scheduler for receiving forwarded packets. A feedback path is operatively connected between the downstream processing engine and the packet scheduler for transmitting a net data unit change value reflecting a change in packet size between an output of the packet scheduler and an output of the downstream processing engine.Type: GrantFiled: June 9, 2004Date of Patent: June 30, 2009Assignee: Juniper Networks, Inc.Inventors: Sreeram Veeragandham, Rami Rahim, Song Zhang, Anurag P. Gupta, Jorge Cruz-Rios, Jayabharat Boddu, Jeffrey R. Zimmer, Jia-Chang Wang, Srihari Shoroff, Chi-Chung K. Chen
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Patent number: 7289503Abstract: A network device includes an interface and packet processing logic. The interface receives a multicast packet. The packet processing logic determines identifier data corresponding to the received multicast packet and replicates the identifier data to multiple outgoing packet forward engines at a first point in a processing path. The packet processing logic further replicates the identifier data to multiple data streams at a second point in the processing path and replicates the identifier data to multiple logical interfaces in the same stream at a third point in the processing path.Type: GrantFiled: July 30, 2002Date of Patent: October 30, 2007Assignee: Juniper Networks, Inc.Inventors: Pradeep Sindhu, Debashis Basu, Pankaj Patel, Raymond Lim, Avanindra Godbole, Tatao Chuang, Chi-Chung K. Chen, Jeffrey G. Libby, Dennis Ferguson, Philippe Lacroute, Gerald Cheung
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Patent number: 5913064Abstract: A method for generating code for an object-oriented processor is disclosed. An instruction table is initialized to include a plurality of instructions for an object-oriented processor, each of the plurality of instructions having a set of operands and an operand type for each of the set of operands. In addition, a weighting table is initialized to include a set of the plurality of instructions and a weight for each of the set of the plurality of instructions, the weight indicating frequency of generation for a particular instruction. A class hierarchy is created, the class hierarchy having a plurality of classes stored in a tree data structure, each of the plurality of classes having a set of fields and a set of methods, each of the plurality of classes, each of the set of fields, and each of the set of methods having object-oriented properties. Within the class hierarchy, a set of objects is randomly generated for each of the plurality of classes.Type: GrantFiled: June 24, 1997Date of Patent: June 15, 1999Assignee: Sun Microsystems, Inc.Inventor: Chi-Chung K. Chen