Abstract:
A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
Abstract:
A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
Abstract:
Systems, devices, and methods for a shared matrix 48 of shared row pins 72 and/or column pins 76 between a first array of keys and a second array of lights of a keyboard. A keyboard controller addresses the first array of keys 38 and the second array of lights 62 during a scanning period using the shared row pins 72 and/or column pins 76. Each key 38 is backlit by one or more lights 62 of the second array of lights 62 that may be individually controlled. The keyboard controller 56 may drive the desired lights 62 of a respective row while detecting key presses of the same row during the row interval using the shared row pins 72 and/or column pins 76. In some embodiments, the keyboard controller 56 may drive the desired lights 62 of a row during driving interval of the row interval, and scan the keys 38 of the row separately during a sensing interval of the row interval.
Abstract:
A wireless power system includes an electrically-balanced inductor in a transmitter device and an electrically-balanced inductor in a receiver device. The electrically-balanced inductors can be formed by introducing crossovers between radially-adjacent portions of two separate turns of each inductor. The crossovers balance the electric field generated by the transmitter device when transferring power to the receiver device.
Abstract:
A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
Abstract:
Systeme, Vorrichtungen und Verfahren für eine gemeinsam genutzte Matrix 48 von zwischen einer ersten Anordnung von Tasten und einer zweiten Anordnung von Lichtquellen einer Tastatur gemeinsam genutzten Zeilenpins 72 und/oder Spaltenpins 76. Eine Tastatursteuereinheit spricht während einer Abtastperiode die erste Anordnung von Tasten 38 und die zweite Anordnung von Lichtquellen 62 unter Verwendung der gemeinsam genutzten Zeilenpins 72 und/oder Spaltenpins 76 an. Jede Taste 38 wird durch eine oder mehrere Lichtquellen 62 der zweiten Anordnung von Lichtquellen 62, die individuell gesteuert werden können, hintergrundbeleuchtet. Die Tastatursteuereinheit 56 kann die gewünschten Lichtquellen 62 einer entsprechenden Zeile betreiben, während Tastendrückvorgänge derselben Zeile während des Zeilenintervalls unter Verwendung der gemeinsam genutzten Zeilenpins 72 und/oder Spaltenpins 76 erkannt werden. In manchen Ausführungsformen kann die Tastatursteuereinheit 56 die gewünschten Lichtquellen 92 einer Zeile während eines Betriebsintervalls des Zeilenintervalls betreiben und die Tasten 38 der Zeile während eines Erfassungsintervalls des Zeilenintervalls separat abtasten.
Abstract:
A power supply with reduced electromagnetic interference (EMI) is described. This power supply includes cascaded stages with switched-mode power-supply circuits that are switched synchronously during operation by switching signals that have a common fundamental frequency. EMI associated with the power supply is reduced by establishing a phase shift between the switching signals in at least two of the stages.