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Aardema
Chris A. Aardema, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110285911 | CONTRAST CONTROL DEVICE AND METHOD THEREFOR - A first video picture is translated based upon a first translation matrix to adjust a contrast of the first video image. A second translation matrix is determined based upon a first histogram of a second video picture. A third translation matrix is determined based upon the first translation matrix and the second translation matrix, and the video picture is translated based upon the third translation matrix. The translation matrix can be determined using a histogram that has been adjusted using a clipped histogram equalization technique. | 11-24-2011 |
Christopher A. Aardema, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110199537 | METHOD AND/OR APPARATUS FOR IMPLEMENTING A COLOR MANAGEMENT MODULE - An apparatus comprising a first circuit, a processing circuit and a conversion circuit. The first circuit may be configured to generate a first intermediate signal in a second format in response to an input signal in a first format. The processing circuit may be configured to generate a second intermediate signal and a third intermediate signal in response to the first intermediate signal. The conversion circuit may be configured to generate an output signal in the first format in response to the second intermediate signal and the third intermediate signal. The processing circuit may be configured to implement color blending on the second intermediate signal in the second format prior to conversion to the first format and pass the third intermediate signal without color blending. | 08-18-2011 |
James A. Aardema, Plymouth, MN US
| Patent application number | Description | Published |
|---|---|---|
| 20100107623 | HYDRAULIC SYSTEM HAVING AN EXTERNAL PRESSURE COMPENSATOR - A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway. | 05-06-2010 |
| 20110072809 | HYDRAULIC SYSTEM AND METHOD FOR CONTROL - A hydraulic system is disclosed having at least two hydraulic circuits. The disclosed system apportions flow between the two hydraulic circuits based on an assumed flow rate that is held constant in both power-limited and non-power-limited conditions. | 03-31-2011 |
James Alvin Aardema, Plainfield, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20080295681 | Hydraulic system having an external pressure compensator - A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway. | 12-04-2008 |