Eileen M Marando

US Patent:

6933697, Aug 23, 2005

Filed:

May 19, 2003

Appl. No.:

10/440606

Inventors:

Eileen M. Marando - Bellmore NY, US
Robert W. Schoepflin - Port Jefferson NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G05B011/28
G05D023/00

US Classification:

318599, 318471

Abstract:

A system may include control logic and a PWM generator configured to generate a PWM (Pulse Width Modulated) signal. The PWM generator is configured to generate the duty cycle of the PWM signal dependent on a duty cycle value generated by the control logic. The control logic stores an inverse focal point value and is configured to generate the duty cycle value by processing the inverse focal point value and a temperature value indicating a current temperature according to the equation of a parabola.

US Patent:

7029239, Apr 18, 2006

Filed:

May 19, 2003

Appl. No.:

10/440745

Inventors:

Eileen M. Marando - Bellmore NY, US
Robert W. Schoepflin - Port Jefferson NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

F04B 49/20

US Classification:

417 32, 417 45, 417 441, 318417, 318471, 318599, 318472, 318634

Abstract:

A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise linear relationship with temperature such that at least two of a plurality of linear segments defined by the piecewise linear relationship have different slopes. In some embodiments, the piecewise linear relationship may be continuous.

US Patent:

7064511, Jun 20, 2006

Filed:

Jan 16, 2004

Appl. No.:

10/759796

Inventors:

Eileen M. Marando - Bellmore NY, US
Robert W. Schoepflin - Port Jefferson NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G05B 11/28

US Classification:

318599, 318811, 318254, 318439, 318138, 318471, 3889075

Abstract:

A system and method for controlling a fan is disclosed. A single control signal value for controlling the fan, such as a single PWM duty cycle value for a corresponding PWM generator output powering the fan, may be calculated by combining sensor data from two or more temperature zones. In one embodiment, the single PWM duty cycle value may be determined based on the temperature in a first zone, for example the CPU, with an additional factor based on the temperature in a second zone, for example the ambient temperature of a PC enclosure. In one embodiment, the final single PWM value is determined by adding an offset value to a PWM value calculated based on the current temperature of the first zone, where the offset value is obtained by calculating a first ΔPWM factor for the first zone, and using the first ΔPWM factor, in conjunction with a scaling factor, to weight a second ΔPWM factor calculated for the second zone.

US Patent:

7295897, Nov 13, 2007

Filed:

Feb 23, 2004

Appl. No.:

10/784837

Inventors:

Eileen M. Marando - Bellmore NY, US
Robert W. Schoepflin - Port Jefferson NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G01M 1/38
G05B 13/00
H02H 7/08
F24D 5/14

US Classification:

700278, 700277, 700299, 318472, 318471, 236 1 B

Abstract:

A fan control system in which a sensor selection block having a number of sensor inputs may be combined with an autofan block having a number of zone inputs, where the number of sensor inputs is greater than the number of zone inputs. Each one of the sensor inputs of the sensor selection block may have a corresponding sensor parameter input. The sensor selection block may be configured to map a subset of the sensor inputs with corresponding sensor parameter inputs to the autofan block. Each zone input and corresponding zone parameter input of the autofan block may receive a corresponding one of the subset of the sensor inputs with corresponding sensor parameter inputs, respectively. The autofan block may have a number of pulse width modulated (PWM) outputs that may be calculated according to the autofan block zone inputs and zone parameter inputs.

US Patent:

7394217, Jul 1, 2008

Filed:

Dec 27, 2005

Appl. No.:

11/318866

Inventors:

Eileen M. Marando - Bellmore NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G05B 11/28

US Classification:

318599, 318445, 318453, 318471

Abstract:

A control signal value, such as a duty cycle value for a Pulse Width Modulated (PWM) generator output, for controlling and/or powering a fan may be calculated using an autofan function configured with dynamic hysteresis control (DHC). As part of the DHC, the PWM duty cycle value may be determined by applying a hysteresis component at every point of the autofan function relating the PWM duty cycle to temperature. The PWM duty cycle value may be computed based on two functions, each function relating the PWM duty cycle to temperature, the first function applied when the temperature is increasing, and the second function applied when the temperature is decreasing. When a newly computed PWM duty cycle value falls within a range of duty cycle values defined by the hysteresis value, the current duty cycle of the PWM generator output may remain unchanged, minimizing noise resulting from the fan changing speed.

US Patent:

7917679, Mar 29, 2011

Filed:

Feb 18, 2005

Appl. No.:

11/061146

Inventors:

Richard E. Wahler - St. James NY, US
Jay D. Popper - Jamaica NY, US
Eileen M. Marando - Bellmore NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G06F 13/10
G06F 13/38

US Classification:

710303, 710200

Abstract:

A method and apparatus for operating a portable computer configured for docking to a docking station is disclosed. In one embodiment, a portable computer system includes a docking interface having a bus switch and a bus monitoring circuit, and a bus coupled to the docking interface. With the computer coupled to a docking station, the bus switch, when closed, may couple the bus to a peripheral interface in the docking station. The bus switch may close responsive to docking, thereby completing the electrical coupling of the bus to the peripheral interface in the docking station. The portable computer being docked to the docking station, the bus monitoring circuit may monitor the bus cycles occurring on the bus and identify trusted read and/or write cycles. During trusted bus cycles the monitoring circuit may operate to open the bus switch thereby preventing information transmitted during the trusted cycles to be accessible outside of the portable computer system, even with the portable computer system remaining docked to the docking station. The monitoring circuit may also operate to close the bus switch in response to a currently occurring trusted bus cycle being interrupted, aborted and/or completed.

US Patent:

7979601, Jul 12, 2011

Filed:

Aug 5, 2008

Appl. No.:

12/186373

Inventors:

Alan D. Berenbaum - New York NY, US
Eileen M. Marando - Bellmore NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G06F 13/28
G06F 13/30
G06F 13/42

US Classification:

710 22, 710 26, 710108

Abstract:

An embedded controller capable of providing direct memory access (DMA) to memory for a host. The controller may include a processor, a memory medium, and an interface coupled to the memory medium. The interface may be configured to couple to a host and receive a DMA request. The DMA request may include a request to read data from a memory location in the memory medium or a request to write data to a memory location in the memory medium. The DMA request may include a relative memory address. The interface may be configured to translate the relative memory address into a first address of the memory medium. Accordingly, the interface may perform operations according to the DMA request using the first address of the memory medium. The processor may be configured to operate according to data stored in the memory medium.

US Patent:

7991514, Aug 2, 2011

Filed:

Nov 7, 2006

Appl. No.:

11/557405

Inventors:

Alan D. Berenbaum - New York NY, US
Richard E. Wahler - St. James NY, US
Eileen M. Marando - Bellmore NY, US

Assignee:

Standard Microsystems Corporation - Hauppauge NY

International Classification:

G05D 23/00

US Classification:

700300, 700276, 361695

Abstract:

Temperature readings obtained within a computer system from the location of monitored circuit elements may be oversampled at least three times, and a median average of the three parameter readings rather than the arithmetic mean may be used for controlling a device, e. g. a fan, configured to regulate the environmental parameter, e. g. temperature, a the location of the monitored circuit elements. For example, when a CPU temperature reading is requested by the system comprising the CPU, a thermal monitoring system may acquire at least three consecutive temperature readings of the CPU, discard the highest temperature reading and the lowest temperature reading, and return the median reading to be used in controlling a fan configured to regulate temperature at the location of the CPU, resulting in more accurate temperature readings and more accurate fan control. In various implementations, more than three readings may be considered at a time, and running averages based on median values may be computed in a variety of ways to obtain a temperature control value to control the fan.