Kari Ann O'Brien

US Patent:

8296526, Oct 23, 2012

Filed:

Jun 17, 2009

Appl. No.:

12/486308

Inventors:

Kari Ann O'Brien - Austin TX, US
George Lattimore - Austin TX, US
Joern Soersensen - Aars, DK
Matthew B Rutledge - Austin TX, US
Paul William Hollis - Austin TX, US

Assignee:

MediaTek, Inc. - Hsin-Chu

International Classification:

G06F 12/00
G06F 13/00
G06F 13/28

US Classification:

711147, 711167, 711170, 711E12002

Abstract:

An apparatus includes a first processor that accesses memory according to a first clock frequency, a second processor that accesses memory according to a second clock frequency, and a memory device is configurable to selectively operate according to the first clock frequency or the second clock frequency. A memory controller enables dynamic configuration of organization of the memory device to allow a first portion of the memory device to be accessed by the first processor according to the first clock frequency and a second portion of the memory device to be accessed by the second processor according to the second clock frequency.

US Patent:

20190149472, May 16, 2019

Filed:

Nov 16, 2018

Appl. No.:

16/194085

Inventors:

- Seattle WA, US
Thomas A. Volpe - Austin TX, US
Kari Ann O'Brien - Austin TX, US

Assignee:

Amazon Technologies, Inc. - Seattle WA

International Classification:

H04L 12/743
H04L 12/745
H04L 29/06
H04L 12/713
H04L 12/749

Abstract:

Packet processors or other devices with packet processing pipelines may implement pipelined evaluations of algorithmic forwarding route lookups. As network packets are received, a destination address for the network packets may be divided into different possible prefix lengths and corresponding entries in a routing table for the different possible prefix lengths may be determined according to a hash scheme for the routing table. The entry values may be read from the routing table and evaluated at subsequent stages to identify the entry with a longest prefix match with respect to the destination address for the network packet. The routing table may include entries for different types of network packets and may be configured to include virtual routing and forwarding for network packets.

US Patent:

20180270153, Sep 20, 2018

Filed:

May 18, 2018

Appl. No.:

15/983856

Inventors:

- Seattle WA, US
Kari Ann O'Brien - Austin TX, US

Assignee:

Amazon Technologies, Inc. - Seattle WA

International Classification:

H04L 12/743

Abstract:

Entropy in routing tables may be increase to perform packet forwarding. Hash tables that store forwarding routes may be divided into multiple hash table segments. Forwarding routes may be stored across the hash table segments in different route segments. When looking up route segments to identify a forwarding route for a destination address of a network packet, digest values generated for previous route segments may be used to determine hash key values to identify hash table entries in a different hash table segment. The forwarding route may be identified according to the hash table entries located based on the digest values for previous route segments.