Geoffrey M Garner from 196 Ambassador Dr, Tinton Falls, NJ 07701, age 70, Phone: 7327580335

Consultant

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Location:

New York, NY

Industry:

Telecommunications

Work:

Telecommunications Consultant since May 2003
Consultant

Education:

Massachusetts Institute of Technology 1972 - 1985

Skills:

Ethernet
Telecommunications
Wireless
Ip
Network Design
Embedded Systems
System Architecture
Digital Signal Processors
Software Development

Geoffrey Garner

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Geoffrey Garner

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Us Patents

System And Method Of Time-Slotted Optical Burst Switching
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US Patent:

7620049, Nov 17, 2009
Filed:

Dec 30, 2005
Appl. No.:

11/321597
Inventors:

Cornelius Johannis Den Hollander - Suwon-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H04L 12/28
H04L 12/56
H04J 14/08
US Classification:

370392, 3703954, 370443, 370458, 398 98
Abstract:

A time-slotted optical burst switching system and method therefor can support data transmissions for a constant bit rate (CBR) and at a variable bit rate (VBR) and improves a data transmission method at an edge node and a core node. Accordingly, it is possible to perform a data service for the constant bit rate and for a variable bit rate and to substantially prevent a delay due to a scheduling for a slot assignment at the core node by transmitting a burst control packet before the data burst to be transmitted at the edge node is generated in case of transmitting the data burst at the constant bit rate.

Apparatus For Adjusting Receiving Time Point Of Burst Data In Optical Burst Switching Network And Method Thereof
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US Patent:

7630363, Dec 8, 2009
Filed:

Dec 30, 2005
Appl. No.:

11/321623
Inventors:

Cornelis Johannis Den Hollander - Suwon-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H04Q 11/00
H04J 3/06
H04B 10/12
US Classification:

370375, 370503, 398154
Abstract:

An apparatus and method for adjusting a receiving time point of burst data in an optical burst switching network is provided. The method includes comparing a reference time point of a node with a time slot boundary of the burst data; and adjusting the time slot boundary of the burst data in accordance with the reference time point. The apparatus includes a sync detection section which is configured to detect a difference between a time slot boundary of the burst data and a reference time point; and a sync control section which is configured to control shifting and re-aligning the received burst data with the reference time point according to the difference detected by the sync detection section.

Time Synchronizing Method And Apparatus Based On Time Stamp
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US Patent:

7668151, Feb 23, 2010
Filed:

Jul 17, 2006
Appl. No.:

11/487408
Inventors:

Hyun-surk Ryu - Suwon-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Fei fei Feng - Yongin-si, KR
Cornelis Johannis Den Hollander - Suwon-si, KR
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H04J 3/06
H04L 12/28
H04L 12/56
US Classification:

370350, 37039562, 370503
Abstract:

Provided are a time synchronizing method and apparatus based on a time stamp. The time synchronizing method includes: transmitting a local time stamp based on a free-running local clock to a master node; receiving a response time stamp from the master node; calculating a delta time value based on the response time stamp; filtering the delta-time using a digital low pass filter running at the free-running local clock rate; and adjusting a local clock time based on the filtered delta time value.

Method And Apparatus For Constant Bit Rate Data Transmission In An Optical Burst Switching Network
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US Patent:

7783200, Aug 24, 2010
Filed:

Jan 18, 2006
Appl. No.:

11/333343
Inventors:

Cornelis Johannis Den Hollander - Huizen, NL
Geoffrey M. Garner - Red Bank NJ, US
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H04B 10/00
US Classification:

398155, 398154, 398 58, 370503, 370375, 375372, 375376
Abstract:

A method, core node, ingress edge node, and egress edge node for matching a bit rate of data input into an optical burst switching network with that of data output from the optical burst switching network are provided. The method includes calculating a difference between a frequency of optical data received on a node and a natural frequency of the node; including the calculated difference into control information; and transmitting the control information. The core node includes a calculator to calculate a difference between frequency of optical data and the natural frequency of the optical data; and a controller to add the difference and a difference included in control information, and output the added difference. The ingress edge node includes a data processor; and a controller. The egress edge node includes an ingress edge node clock recovery phase lock loop; a de-mapper; and a storage unit.

Synchronizing Apparatus And Method In Packet Network
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US Patent:

7876791, Jan 25, 2011
Filed:

Jul 24, 2008
Appl. No.:

12/178715
Inventors:

Hong-kyu Jung - Daejeon-si, KR
Fei Fei Feng - Yongin-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Byung-suk Kim - Uiwang-si, KR
Chul-ki Lee - Seoul, KR
Assignee:

Samsung Electronics Co., Ltd.
International Classification:

H04J 3/06
US Classification:

370503, 370345
Abstract:

Provided are a synchronizing apparatus and method for performing synchronization in a packet network. The synchronizing apparatus includes a sampling unit to measure a time difference using a plurality of time stamps included in a plurality of two-way message packets, an estimating unit to estimate a frequency offset by applying a baseline algorithm to the time difference, a verifying unit to verify the frequency offset to remove an error caused by network delay variation, and a synchronizing unit to remove the frequency offset from a local slave clock signal and generate a slave clock signal synchronized to a clock signal of a master device.

Method Of Transmitting Ethernet Frame In Network Bridge And The Bridge
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US Patent:

7908540, Mar 15, 2011
Filed:

Nov 2, 2006
Appl. No.:

11/591591
Inventors:

Hong Kyu Jeong - Yongin-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Hyun Surk Ryu - Suwon-si, KR
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H03M 13/00
US Classification:

714758, 370218
Abstract:

Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.

Method To Accurately And Securely Determine Propagation Delay And Distance Between Sending And Receiving Node In Packet Network Using Cut-Through Approach And Packet Network Node For Executing The Method
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US Patent:

8018973, Sep 13, 2011
Filed:

Nov 16, 2006
Appl. No.:

11/600046
Inventors:

Hyun Surk Ryu - Suwon-si, KR
Geoffrey M. Garner - Red Bank NJ, US
Cornelis Johannis Den Hollander - Yongin-si, KR
Fei Fei Feng - Yongin-si, KR
Kyu Hong Jung - Yongin-si, KR
Assignee:

Samsung Electronics Co., Ltd. - Suwon-si
International Classification:

H04J 3/06
H04L 12/42
H04L 12/28
US Classification:

370508, 37039542, 370449
Abstract:

A method and system for measuring a distance between nodes in a packet network are provided. The system and method include measuring and storing a departure time of a ping packet sent from a source node to a destination node, sending a response packet with respect to the ping packet from the destination node to the source node, cutting through the ping packet or response packet to a successive node or the destination node without an intermediate node delay, computing a round-trip time by measuring an arrival time of the response packet at the source node and measuring the distance between the nodes, based on the round-trip time and speed of the ping packet.

Network System Supporting Spanning Tree Protocol, Relay Apparatus Thereof, And Method Of Creating Spanning Tree Topology Thereof
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US Patent:

8223671, Jul 17, 2012
Filed:

Mar 14, 2008
Appl. No.:

12/048540
Inventors:

Fei Fei Feng - Yongin-si, KR
Hong-kyu Jung - Yongin-si, KR
Byung-suk Kim - Uiwang-si, KR
Geoffrey M Garner - Red Bank NJ, US
Assignee:

Samsung Electronics Co., Ltd. - Suwon-Si
International Classification:

H04L 12/28
US Classification:

370256, 370401
Abstract:

Provided are a network system supporting a spanning tree protocol (STP), a relay apparatus thereof, and a method of creating a spanning tree. Proposed is a method of creating a tree topology, between AVB bridges, using a STP message including a group MAC address which is different from that used in a non-AVB (Audio Video Bridging) bridge (that is, a bridge without the function of AVB), in order to form a minimum number of AVB clouds. Therefore, it is possible to efficiently ensure transmission quality of a multimedia stream such as an AVB stream.