| Patent application number | Description | Published |
|---|
| 20090001957 | Electronic Voltage Supply Method and Apparatus - A method and apparatus for supplying a voltage in an information handling system. A modulated voltage signal output circuit linked to an amplitude control element. The amplitude control element linked to a voltage output circuit, the output circuit including one or more electrical energy-storage elements to receive an electrical current. The voltage output circuit having one or more electronic switches to alter the current passing to the energy-storage element(s) to provide a modulated voltage output. | 01-01-2009 |
| 20090033287 | System and Method for Powering Docked Portable Information Handling System - A portable information handling system powered through a docking station charges an internal battery based on available power sensed at the docking station and communicated to a charger of the information handling system. A dock sensor on the information handling system selectively interfaces a local power sensor if the information handling system is not docked or a docking station sensor if the information handling system is docked. Available power sensed at the docking station is communicated to a battery charger of the information handling system by a differential wire pair interfaced through a docking connector. | 02-05-2009 |
| 20090282321 | Optional Memory Error Checking - A memory error checking system includes a controller that is operable to transmit memory signals and error check signals. A first memory device coupler is coupled to the controller and operable to couple to a first memory device. The first memory device coupler is operable to transmit the memory signals from the controller to the first memory device. A first error check device coupler is coupled to the controller and operable to couple to a first error check device that is separate from the first memory device. The first error check device coupler is operable to transmit the error check signals from the controller to the first error check device to be used to error check the memory signals transmitted to the first memory device. | 11-12-2009 |
| 20090291597 | METHOD AND APPARATUS TO COUPLE AN EXTERNAL DEVICE TO, AND POWER THE EXTERNAL DEVICE FROM, AN INFORMATION HANDLING SYSTEM - A plug to couple an external device to, and power the external device from, an information handling system includes first contacts conforming to a first industry standard. The first contacts include a first power contact adapted to conduct a first power signal from the information handling system to the external device. The plug also includes second contacts conforming to a second industry standard different from the first industry standard. The second contacts are designed to conduct no more than one second power signal from the information handling system to the external device. In a particular embodiment, the first contacts conform to a USB standard, and the second contacts conform to a non-USB standard. | 11-26-2009 |
| 20100072956 | Low Power and Accurate Adapter-Current Detection Scheme for Dynamic Load Balancing - A charger provides a charging current to an information handling system battery by measuring current provided from an external power source using a Hall sensor. The Hall sensor is integrated into an integrated circuit of the charger to measure current provided by an external power source and output a voltage proportional to the measured current. The charger analyzes the external power source current relative to an available current to determine the charging current. The Hall sensor provides the total current from the charger with minimal resistance to reduce power consumption at the charger. | 03-25-2010 |
| 20100138675 | Methods and Systems for Managing Power to Multiple Processors - A system for controlling power to multiple processing cores operating in separate domains in an information handling system (IHS) is provided. The system includes a power regulator that is programmable to output voltage depending on a processor domain and a corresponding performance state. In some instances, one processor may be an integrated graphics processing unit, and another processor may be a discrete graphics processing unit. | 06-03-2010 |
| 20100268860 | Methods for Generating Display Signals in an Information Handling System - An information handling system (IHS) is provide for generating display signals associated with an alternative display protocol. The system may include a display protocol receptacle operable to receive a display protocol plug and a display bus switch in communication with the display protocol receptacle. The system may also include a display converter in communication with the IHS. The display converter may include a first end having a display connector associated with an alternative display protocol and a second end having a display protocol plug. Moreover, upon receipt of the display protocol plug by the display protocol receptacle, the display bus switch may output display signals associated with the alternative display protocol. | 10-21-2010 |
| 20110310030 | Information Handling System Dual Mode Touch Enabled Secondary Display - A dual mode touchscreen display disposed in an information handling system chassis proximate a keyboard selectively presents images from information generated by a central processing unit or from information generated by a secondary processor associated with the touchscreen display. An operating system executing on the central processor unit presents information at the touchscreen through a serial link by treating the touchscreen as a secondary display to a primary display integrated in the chassis. Alternatively, an application executing on the secondary processor presents information at the touchscreen independent of the central processing unit or the operating system. As an example, the touchscreen display presents a number pad under the direction of the operating system to accept number pad inputs or, alternatively, presents a number pad under the direction of an application running on the secondary processor to accept number pad inputs that are forwarded to a keyboard controller. | 12-22-2011 |
