Patents by Inventor John E. Dawson
John E. Dawson 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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Patent number: 9640998Abstract: Methods, systems and computer readable media for providing AC power over a computer network (e.g., Ethernet) are disclosed.Type: GrantFiled: October 29, 2013Date of Patent: May 2, 2017Assignee: Avaya Inc.Inventor: John E. Dawson
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Publication number: 20150115741Abstract: Methods, systems and computer readable media for providing AC power over a computer network (e.g., Ethernet) are disclosed.Type: ApplicationFiled: October 29, 2013Publication date: April 30, 2015Applicant: Avaya Inc.Inventor: John E Dawson
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Patent number: 8867350Abstract: A method, apparatus and computer program product for packet buffering measurement is presented. A plurality of packets are transmitted to a packet switching device. Packets are received from the packet switching device. A determination is made, with respect to a particular time, based on packets transmitted to the packet switching device and packets received from the packet switching device, regarding a number of packets being held in a memory of the packet switching device.Type: GrantFiled: July 23, 2012Date of Patent: October 21, 2014Assignee: Avaya Inc.Inventor: John E. Dawson
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Publication number: 20140023069Abstract: A method, apparatus and computer program product for packet buffering measurement is presented. A plurality of packets are transmitted to a packet switching device. Packets are received from the packet switching device. A determination is made, with respect to a particular time, based on packets transmitted to the packet switching device and packets received from the packet switching device, regarding a number of packets being held in a memory of the packet switching device.Type: ApplicationFiled: July 23, 2012Publication date: January 23, 2014Applicant: AVAYA INC.Inventor: John E. Dawson
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Patent number: 6782503Abstract: A test environment includes a test packet generator, a system under test, and a test device. The test packet generator generates test packets each containing a check value (e.g., a cyclic redundancy check value). The system under test performs a known transform of at least a portion of each test packet, and generates a new check value based on the transformed packet. The test device receives the transformed packets from the system under test. The test device performs an error check based on the check value and also compares the check value with an expected check value to validate the content of each received packet. Each test packet contains a splice or signature value so that the new check value calculated by the system under test is equal to the expected check value if the system under test is functioning properly.Type: GrantFiled: November 28, 2000Date of Patent: August 24, 2004Assignee: Nortel Networks LimitedInventor: John E. Dawson
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Patent number: 6775804Abstract: A test environment includes a test packet generator, a system under test, and a test device. The test packet generator generates test packets each containing a check value (e.g., a cyclic redundancy check value). The system under test performs a known transform of at least a portion of each test packet, and generates a new check value based on the transformed packet. The test device receives the transformed packets from the system under test. The test device performs an error check based on the check value and also compares the check value with an expected check value to validate the content of each received packet.Type: GrantFiled: November 28, 2000Date of Patent: August 10, 2004Assignee: Nortel Networks LimitedInventor: John E. Dawson
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Patent number: 6625764Abstract: A test environment includes a test packet generator, a system under test, and a test device. The test packet generator generates test packets each containing a check value. The system under test performs a known transform of at least a portion of each test packet, and generates a new check value based on the transformed packet. The test device receives the transformed packets from the system under test and performs an error check based on the check value and also compares the check value with an expected check value to validate the content of each received packet. Each test packet contains a splice or signature value so that the new check value calculated by the system under test is equal to the expected check value if the system under test is functioning properly.Type: GrantFiled: November 28, 2000Date of Patent: September 23, 2003Assignee: Nortel Networks LimitedInventor: John E. Dawson
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Patent number: 6360335Abstract: A perfornance measurement, communication fault detection, and fault isolation system for a ring based communication network. The present invention includes mechanisms and procedures operable within each port logic device of a communication network for counting the number of message packets lost by the network versus the number of message packets lost by the particular port or it's attached communication station. The result is a generic loss metric for that particular port. Positive counts represent packets lost by the remainder (i.e., not including the particular port) of the network while negative counts represent packets lost by the port or its attached station. The present invention also includes embodiments wherein the above capabilities are provided for a group of ports but only for messages that contain a particular targeted address as the packet's origin (i.e., targeted loss metric).Type: GrantFiled: January 26, 1995Date of Patent: March 19, 2002Assignee: Nortel Networks LimitedInventor: John E. Dawson
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Patent number: 5390188Abstract: A performance measurement, communication fault detection, and fault isolation system for a ring based communication network. The present invention includes mechanisms and procedures operable within each port logic device of a communication network for counting the number of message packets lost by the network versus the number of message packets lost by the particular port or it's attached communication station. The result is a generic loss metric for that particular port. Positive counts represent packets lost by the remainder (i.e., not including the particular port) of the network while negative counts represent packets lost by the port or its attached station. The present invention also includes embodiments wherein the above capabilities are provided for a group of ports but only for messages that contain a particular targeted address as the packet's origin (i.e., targeted loss metric).Type: GrantFiled: August 2, 1993Date of Patent: February 14, 1995Assignee: SynopticsInventor: John E. Dawson
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Patent number: 4778492Abstract: Apparatus designed to effect the continuous processing of gas mixtures for the selective removal of certain elements and constituents from the gases. A method is also disclosed by which the continuous process is carried out. A drum-shaped rotor unit has adsorbent carrying containers mounted about an axis. These containers rotate through a first circumferential zone in which gas processing occurs and a second circumferential zone in which regeneration occurs. This allows gas to constantly flow into the rotor unit at the first circumferential zone to undergo an adsorption process while also continuously providing regenerated adsorbent to the first circumferential zone.Type: GrantFiled: February 19, 1987Date of Patent: October 18, 1988Assignee: Advanced Separation Technologies IncorporatedInventor: John E. Dawson