Eric A Hall

US Patent:

8122758, Feb 28, 2012

Filed:

Jan 19, 2009

Appl. No.:

12/355926

Inventors:

Zhong Wang - Bellevue WA, US
Miles K. Maxey - Holly MI, US
James D. Ethington - Swartz Creek MI, US
Eric M. Hall - Rochester Hills MI, US
Brian Spohn - Holly MI, US
David Edward Prout - Linden MI, US

International Classification:

G01M 3/26

US Classification:

73 497, 73 40, 73 47

Abstract:

A leak diagnostic system for a vehicle comprises a tank pressure module and a leak diagnostic module. The tank pressure module selectively outputs first and second fuel tank pressures when an engine is shut down and when engine vacuum is greater than a predetermined engine vacuum, respectively. The leak diagnostic module selectively diagnoses a leak in a fuel vapor purge valve based on the second fuel tank pressure when the first fuel tank pressure is less than a first predetermined pressure.

US Patent:

8587979, Nov 19, 2013

Filed:

Jan 10, 2011

Appl. No.:

12/930571

Inventors:

Christopher Gronlund - Kent WA, US
Eric Hall - Bellevue WA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G11C 15/04
G11C 15/00

US Classification:

365 4917, 365 4915, 365227

Abstract:

According to one disclosed embodiment, a content-addressable memory (CAM) system configured for reduced power consumption includes a sensing circuit utilized to apply a sense voltage to a matchline of the CAM system, a valid bit cell coupled to the matchline, and a power cut-off circuit configured to isolate the sense voltage from the matchline when an invalid validity state is stored in the valid bit cell, thereby reducing power consumption by the CAM system. In one embodiment, the power cut-off circuit isolates the sense voltage from the matchline by decoupling the sensing circuit from a control signal when an invalid validity state is stored in the valid bit cell.

US Patent:

20120146672, Jun 14, 2012

Filed:

Jan 6, 2011

Appl. No.:

12/930470

Inventors:

Mark Winter - Seattle WA, US
Eric Hall - Bellevue WA, US

Assignee:

BROADCOM CORPORATION - IRVINE CA

International Classification:

G01R 31/26
G01R 31/3187

US Classification:

3247503

Abstract:

Disclosed is a monitoring system that includes at least one performance monitor integrated into a semiconductor die. The performance monitor comprises at least one ring oscillator that includes a plurality of stages. Each stage comprises at least one memory device. In one embodiment, the performance monitor may also include a setting circuit that has a burn-in input and an enable input. The setting circuit is capable of setting an input signal of the at least one ring oscillator to a reference voltage level. The performance monitor is configured to produce a ring delay that is characterized by a performance of the at least one memory device. The ring delay may be utilized to scale an operating voltage of the at least one memory device on the semiconductor die.

US Patent:

20140071727, Mar 13, 2014

Filed:

Nov 14, 2013

Appl. No.:

14/080464

Inventors:

Eric Hall - Bellevue WA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G11C 15/04

US Classification:

365 4917

Abstract:

According to one disclosed embodiment, a content-addressable memory (CAM) system configured for reduced power consumption includes a sensing circuit utilized to apply a sense voltage to a matchline of the CAM system, a valid bit cell coupled to the matchline, and a power cut-off circuit configured to isolate the sense voltage from the matchline when an invalid validity state is stored in the valid bit cell, thereby reducing power consumption by the CAM system. In one embodiment, the power cut-off circuit isolates the sense voltage from the matchline by decoupling the sensing circuit from a control signal when an invalid validity state is stored in the valid bit cell.