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Kent B Dahlgren

from Stockton, CA
Age ~67
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Related to:
Marisa G Dahlgren, 35Charlie C DavieNicole Guzman, 43Emily Carr
Connected to:
Alexander J Dahlgren, 35Aron D Dahlgren, 40Barry A Dahlgren, 76Blake R Dahlgren, 36Christina M Dahlgren, 71Courtney A Dahlgren, 37Henrik Dahlgren, 44Jan P Dahlgren, 42Kerstin D Dahlgren, 58Larry Dahlgren, 70

Kent Dahlgren Phones & Addresses

  • 5619 Vintage Cir, Stockton, CA 95219
  • 5660 Vintage Cir, Stockton, CA 95219
  • Petaluma, CA
  • 1196 Capri Dr, Campbell, CA 95008
  • 229 Mattson Ave, Los Gatos, CA 95032
  • Santa Clara, CA
  • San Jose, CA
  • Corvallis, OR
  • Santa Rosa, CA

Work

Company: Praesum communications Position: Chief executive officer

Skills

Ethernet • Switches • Bridging • Ip • Telecommunications • Pcie • Fpga • Start Ups • Business Planning • Asic • Verilog • Soc • Embedded Systems • Systemverilog • Product Planning • Rtl Design • Wireless • Xilinx • C • Hardware • Linux • System Architecture • System Design • Engineering Management • Altera • Operating Systems • Computer Hardware • Systems Engineering • Software Development • Engineering • Processors • Device Drivers • Hardware Design • Debugging • Product Development • Product Marketing • Assembly • Hardware Architecture • Semiconductors • Manufacturing • Ic • Firmware • Mixed Signal • Digital Signal Processors

Industries

Semiconductors

Resumes

Resumes

Kent Dahlgren Photo 1

Kent Dahlgren

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Location:
2550 northwest Windsor Pl, Corvallis, OR 97330
Industry:
Semiconductors
Work:
Praesum Communications
Chief Executive Officer
Skills:
Ethernet
Switches
Bridging
Ip
Telecommunications
Pcie
Fpga
Start Ups
Business Planning
Asic
Verilog
Soc
Embedded Systems
Systemverilog
Product Planning
Rtl Design
Wireless
Xilinx
C
Hardware
Linux
System Architecture
System Design
Engineering Management
Altera
Operating Systems
Computer Hardware
Systems Engineering
Software Development
Engineering
Processors
Device Drivers
Hardware Design
Debugging
Product Development
Product Marketing
Assembly
Hardware Architecture
Semiconductors
Manufacturing
Ic
Firmware
Mixed Signal
Digital Signal Processors

Business Records

Name / Title
Company / Classification
Phones & Addresses
Kent Blair Dahlgren
President
Praesum Communications
Semiconductors · Mfg Radio & Television Communications Equipment
141 H St SUITE E, Petaluma, CA 94952
121 H St, Petaluma, CA 94952
122 Kentucky St, Petaluma, CA 94952
(707) 781-9753
Kent Dahlgren
Owner
Prasum Communications
Computer & Software Merchant Whols
23 Park Ave #B, Petaluma, CA 94952
(707) 781-9753

Publications

Us Patents

Method And Apparatus For Changing Context In Link Channelization

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US Patent:
6684271, Jan 27, 2004
Filed:
Oct 18, 2002
Appl. No.:
10/273970
Inventors:
Kent Blair Dahlgren - Petaluma CA
Assignee:
Xilinx, Inc. - San Jose CA
International Classification:
G06F 300
US Classification:
710 38, 709253, 370463
Abstract:
The present invention allows preloading of channel context in advance of actual channel change in a digital communication system. The system uses a channel identification signal to identify the present channel number of data on a data bus. Before the actual change in channel, a future channel number is inserted into the channel identification signal. Another signal is used to indicate the location of the future channel number in the channel identification signal. As a result, the system is able to know in advance the new channel number. The corresponding context can be loaded before the arrival of the new channel data.

Crosspoint Switch With Bank-Switched Memory

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US Patent:
57900485, Aug 4, 1998
Filed:
Oct 30, 1997
Appl. No.:
8/961545
Inventors:
Wen-Jai Hsieh - Palo Alto CA
Chun Chiu Daniel Wong - Palo Alto CA
Gerchih Chou - San Jose CA
Shrikant Sathe - Saratoga CA
Kent Dahlgren - San Jose CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
H04Q 100
G06F 1300
US Classification:
34082579
Abstract:
A crosspoint switch routes signals between its terminals in routing patterns defined by routing data from a host controller. The crosspoint switch includes an array of pass transistors. Each pass transistor, when turned on, provides a signal path interconnecting a separate, unique pair of the switch terminals. The crosspoint switch also includes two static random access memory banks. Each memory bank stores routing data defining a separate routing pattern and produces a separate set of output signals reflecting its stored data. A multiplexer delivers the output signals of a selected one of the memory banks to the switch array for controlling its pass transistors so that the switch array implements the routing pattern defined by the data in the selected memory bank. By loading routing data defining different routing patterns into the two memory banks, a host controller can thereafter quickly make the crosspoint switch alternate between the two routing patterns by toggling the multiplexer's control input.

Crossbar Switch With Input/Output Buffers Having Multiplexed Control Inputs

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US Patent:
57178712, Feb 10, 1998
Filed:
Aug 17, 1995
Appl. No.:
8/516319
Inventors:
Wen-Jai Hsieh - Palo Alto CA
Chun Chiu Daniel Wong - Palo Alto CA
Gerchih Chou - San Jose CA
Shrikant Sathe - Saratoga CA
Kent Dahlgren - San Jose CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
G06F 300
US Classification:
395250
Abstract:
An electronic crossbar switch employs a switch array for selectively routing signals between its terminals. A separate port provided for each terminal buffers signals flowing in and out of the switch. Each port can be configured to operate with or without tristate buffering under control of a tristate control signal, to optionally latch input or output signals in response to clock and clock enable signals, and to buffer signals passing in or out of the switch terminal in response to a direction control signal. A set of control inputs are provided in common to all ports, allowing an external host to transmit control signals in parallel to each port. Each port may be programmed to select any of its control inputs as its tristate, clock enable, clocking or direction control signal. A parallel "key" bus is also provided in common to all ports for conveying a key address from the host controller. Each port stores an internal port address and when the key address matches the port address, the port asserts an internal "KEY" signal.

Network Switch With Broadcast Support

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US Patent:
57840032, Jul 21, 1998
Filed:
Mar 25, 1996
Appl. No.:
8/624686
Inventors:
Kent Blair Dahlgren - San Jose CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
H04Q 1900
G05B 2302
G06F 1300
US Classification:
34082579
Abstract:
A local area network switch includes input and output ports for receiving and transmitting broadcast and unicast data transmissions from and to corresponding network stations and a crosspoint switch for selectively routing data transmissions between the ports. All input ports have one connection to the crosspoint switch for forwarding incoming broadcast and unicast data transmissions to the crosspoint switch. Each output port has a unique unicast link to the crosspoint switch for receiving unicast transmissions directed solely to its corresponding network station. All output ports also share a second broadcast link to the crosspoint switch for receiving broadcast transmissions directed to all network stations. The crosspoint switch routes each unicast transmission from an input port only to the appropriate output port via the output port's unicast link and routes broadcast transmission from an input port to all output ports via the common broadcast link. Each output port can receive and store both unicast and broadcast transmissions routed concurrently through the crosspoint switch and can thereafter forward the stored transmissions sequentially to its corresponding network station.

Network Switch With Arbitration Sytem

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US Patent:
56896441, Nov 18, 1997
Filed:
Mar 25, 1996
Appl. No.:
8/621422
Inventors:
Ger-Chih Chou - San Jose CA
Kent Blair Dahlgren - San Jose CA
Wen-Jai Hsieh - Palo Alto CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
G06F 1300
US Classification:
39520006
Abstract:
A local area network switch includes a set of input ports each receiving and storing incoming packets from a corresponding network station, a set of output ports each forwarding packets to a corresponding network station, and a switching system for routing packets from the input ports to the output ports. The output ports are interconnected to form an output token passing ring and the input ports are interconnected to form an input token passing ring. Whenever an idle output port receives the output token, it holds the output token and signals the input ports to start an input token passing cycle. During an input token passing cycle, an input port storing a packet destined for an output token holder terminates the input token passing cycle when it receives the input token and signals the switching system to establish a connection to the output token holder. To fairly distribute arbitration priority, input and output ports starting positions are rotated for successive input and output token passing cycles.

Hierarchical Address Translation System For A Network Switch

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US Patent:
57547912, May 19, 1998
Filed:
Mar 25, 1996
Appl. No.:
8/622764
Inventors:
Kent Blair Dahlgren - San Jose CA
Daniel J. Bedell - Portland OR
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
G06F 15163
US Classification:
39520072
Abstract:
A network switch routes data transmissions between uniquely addressed network stations connected to input and output ports of the switch. The switch includes a hierarchical address translation system for relating network addresses of stations to receive incoming transmission to the switch ports to which they are connected. The translation system includes a central translation unit having a memory for storing a mapping entry for each network station, the entry mapping the station's network address to its switch port. The system also includes a local translation unit in each input port. Each local translation unit contains a local cache memory for storing a smaller subset of the mapping entries stored by the central translation unit. When a data transmission arrives at an input port directed to a network address, the input port looks for an entry in its cache memory mapping that network address to an output port. Upon finding such an entry in its cache memory, the input port directs the incoming data transmission to that output port.

Programmable Port For Crossbar Switch

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US Patent:
57343349, Mar 31, 1998
Filed:
Aug 17, 1995
Appl. No.:
8/516320
Inventors:
Wen-Jai Hsieh - Palo Alto CA
Chun Chiu Daniel Wong - Palo Alto CA
Gerchih Chou - San Jose CA
Shrikant Sathe - Saratoga CA
Kent Dahlgren - San Jose CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
H04Q 100
US Classification:
340827
Abstract:
An electronic crossbar switch employs a switch array for selectively routing digital and analog signals between its terminals. A separate port for each terminal provides a path for digital and analog signals flowing in and out of the switch. Each port can be configured to operate with or without tristate buffering under control of a tristate control signal, to optionally latch input or output signals in response to clock and clock enable signals, and to buffer signals passing in or out of the switch terminal with or without an input direction control signal. A set of control inputs are provided in common to all ports, allowing an external host to transmit control signals in parallel to each port. Each port may be programmed to select any of its control inputs as its tristate, clock enable, clocking or direction control signal.

Clustered Address Caching System For A Network Switch

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US Patent:
59405961, Aug 17, 1999
Filed:
Aug 4, 1997
Appl. No.:
8/905440
Inventors:
Sundar Rajan - Santa Clara CA
Kent Blair Dahlgren - San Jose CA
Assignee:
I-Cube, Inc. - Campbell CA
International Classification:
G06F 15163
US Classification:
39520072
Abstract:
A network switch forwards data packets between network stations connected to its input and output ports. Each data packet includes the network address of a destination station. The receiving input port consults an address translation system including a local address translation cache within each input port for caching recently used address-to-port translation information, a set of secondary address translation units each serving a separate cluster of input ports for caching a larger amount of recently used address translation information, and a main address translation unit storing address-to-port translation information for all network stations. An input port not having appropriate translation information in its local cache sends an address translation request to a secondary address translation unit. A secondary address translation unit not having appropriate address translation information to respond to the request, forwards the request to the main address translation unit. The main address translation unit returns the appropriate address translation information to the secondary address translation unit which caches that information and returns it to the requesting input port.
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Kent B Dahlgren from Stockton, CA, age ~67 Get Report