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Daniel S Pyrik

from Charlotte, NC
Age ~50
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Also known as:
Daniel Pyrik, Pan Pyrik, Dan Pyrik
Related to:
Jon A Reske, 69Deborah E Pyrik, 72Annette C Ferris, 67Teresa A Kuta, 69Wm PyrikWasyl PyrikStephen Pyrik, 75
Connected to:
Freda B Pyron, 64Jeutaun T Pyron, 49Katrina S Pyron, 47Kelley Pyron, 45Kendall L Pyron, 61Moriah Pyron, 43Ricky L Pyron, 65Shannon D Pyron, 58Andrew C Pyros, 85Kim M Pyrros, 61

Daniel Pyrik Phones & Addresses

  • Charlotte, NC
  • 26 Doane St, Lowell, MA 01851 (978) 446-9888
  • 22 Algonquin Rd, Chelmsford, MA 01824 (978) 856-7292
  • 3 Kenmar Dr, Billerica, MA 01821 (978) 663-9677
  • Acton, MA
  • Concord, MA
  • Newport News, VA
  • Fairhaven, MA
  • Boston, MA

Publications

Us Patents

Ip Packet Identification Method And System For Tcp Connection And Udp Stream

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US Patent:
7512069, Mar 31, 2009
Filed:
May 18, 2001
Appl. No.:
09/860287
Inventors:
Kaynam Hedayat - Chestnut Hill MA, US
Daniel S. Pyrik - Lowell MA, US
Steven A. DesRochers - Londonderry NH, US
Assignee:
EXFO Service Assurance, Inc. - Chelmsford MA
International Classification:
G01R 31/08
US Classification:
3702301, 370235, 370252, 370516, 714 55, 714814, 709233, 709234
Abstract:
A method of measuring jitter of a packet flow includes identifying the data packet flow at each of a first and second network locations by analyzing the data fields of each of the packets in the flow. The method associates a transmit time code with each packet transmitted from the first location, and associates a receive time code with each packet received at the second location. The method calculates inter-arrival times for consecutive pairs of packets by (i) subtracting the transmit time code of the first packet from the transmit time code of the second packet, (ii) subtracting the receive time code associated with the first packet from the receive time code associated with the second packet, and (iii) subtracting the results. The method includes calculating a jitter value as a smoothed version of two or more inter-arrival times, smoothed over a predetermined number of pairs of consecutive packets.

Apparatus And Method For Passively Analyzing A Data Packet Delivery Path

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US Patent:
7840670, Nov 23, 2010
Filed:
Oct 28, 2008
Appl. No.:
12/259914
Inventors:
Kaynam Hedayat - Chestnut Hill MA, US
Daniel S. Pyrik - Lowell MA, US
Assignee:
EXFO Service Assurance, Inc. - Chelmsford MA
International Classification:
G06F 15/173
G06F 11/00
US Classification:
709224, 709223, 370243, 370244
Abstract:
A packet transmission diagnostic system transmits diagnostic packets during a communications session in which data packets are transmitted between a source and destination. The diagnostic packets elicit responses from routers along a path between the source and destination. The elicited responses, in the form of packets, are used by the diagnostic system to produce one or more packet-delivery metrics for one or more of the routers along a packet transmission path between the source and destination.

Correlating Network Transactions

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US Patent:
8271633, Sep 18, 2012
Filed:
Apr 16, 2009
Appl. No.:
12/425183
Inventors:
Daniel S. Pyrik - Lowell MA, US
Kaynam Hedayat - Chestnut Hill MA, US
Robert Naylor - Newburyport MA, US
Assignee:
EXFO Service Assurance Inc. - Chelmsford MA
International Classification:
G06F 15/173
US Classification:
709223, 709203, 709224, 370242
Abstract:
The correlating network transactions techniques include a method, an apparatus, and/or a computer program product. In some embodiments of these techniques, the method includes receiving, at a first monitor server, a first plurality of network transmissions from a first plurality of communication networks and correlating, at the first monitor server, the first plurality of network transmissions based on information associated with the first plurality of network transmissions to form a first correlated network transaction. The method further includes transmitting the first correlated network transaction from the first monitor server to a second monitor server based on a first correlation flag and correlating, at the second monitor server, the first correlated network transaction with a second network transmission based on at least one of the first correlation flag, information associated with the second network transmission, and information associated with the first correlated network transaction to form a second correlated network transaction.

Apparatus And Method For Actively Analyzing A Data Packet Delivery Path

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US Patent:
7454494, Nov 18, 2008
Filed:
Jan 7, 2003
Appl. No.:
10/337653
Inventors:
Kaynam Hedayat - Chestnut Hill MA, US
Daniel S. Pyrik - Lowell MA, US
Assignee:
EXFO Service Assurance Inc. - Chelmsford MA
International Classification:
G06F 15/173
G06F 11/00
US Classification:
709224, 709223, 370244, 370245
Abstract:
A packet transmission diagnostic system transmits diagnostic packets during a communications session in which data packets are transmitted between a source and destination. The diagnostic packets elicit responses from routers along a path between the source and destination. The elicited responses, in the form of packets, are used by the diagnostic system to produce one or more packet-delivery metrics for one or more of the routers along a packet transmission path between the source and destination.
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Daniel S Pyrik from Charlotte, NC, age ~50 Get Report