Patent application number | Description | Published |
20140218045 | USING PULSED DC TO DETECT CONNECTOR MATING AND UNMATING - Techniques for detecting mating and un-mating of a first connector with a second connector include providing a pulsed voltage signal at a contact of the second connector and measuring a rate of rise of voltage at the contact. If the measured voltage at the contact exceeds a threshold voltage during the time the pulsed voltage signal is applied, then it is concluded that the first connector is not present and not mated with the second connector. If the measured voltage is lower than or equal to the threshold voltage during the time of application of the voltage pulse, it is concluded that the first connector is present and mated with the second connector. | 08-07-2014 |
20140253150 | Electronic Device With Liquid Contact Sensors - Electronic devices may be accidentally exposed to liquid during operation. To detect liquid intrusion events, an electronic device may be provided with one or more electronic liquid contact sensors. The liquid contact sensors may have electrodes. Control circuitry may make measurements across the electrodes such as resistance and capacitance measurements to detect the presence of liquid. Liquid contact sensor data may be maintained in a log within storage in the electronic device. The liquid contact sensor data can be used to display information for a user of the electronic device or can be loaded onto external equipment for analysis. Liquid contact sensor electrodes may be formed from metal traces on substrates such as printed circuits, from contacts in a connector, from contacts on an integrated circuit, or from other conductive electrode structures. | 09-11-2014 |
20150022759 | Display with Radioluminescent Backlight Unit - An electronic device is provided with a display such as a liquid crystal display mounted in an electronic device housing. The display may be provided with a backlight unit. The backlight unit may include radioluminescent backlight structures. The radioluminescent backlight structures include an ionizing radiation source that produces beta particles or other ionizing radiation. The radioluminescent backlight structures also include a phosphor that produces light in response to being struck by the ionizing radiation. The light produced by the phosphor passes through liquid crystal display layers and serves as backlight for the display. Photoluminescent material and light-emitting diodes may also be used to produce backlight for the display. The display backlight may have a light guide plate that is provided with light from the radioluminescent light source or other light source structures. | 01-22-2015 |
20150137617 | Using Pulsed Biases to Represent DC Bias for Charging - Power transfer systems including a direct current source and a plurality of outputs operable in several modes. A ground mode may couple an output to circuit ground and a current mode may couple the output to the direct current source. The power transfer system may also include a controller configured to iteratively select a pair of outputs from the plurality of outputs. Once a pair is selected, the controller may set a first output of the pair of outputs to the current mode and the second to ground mode for a determined duration. After the duration has passed, the controller may set the first output to the ground mode and the second output to the current mode for the same duration. Thereafter the controller may select another pair of outputs. | 05-21-2015 |
20150270900 | OPTICAL DATA TRANSFER UTILIZING LENS ISOLATION - A first electronic device optically communicates with a second electronic device. Each of the devices includes one or more optical transmitters, one or more optical receivers, and one or more lenses where each of the lenses includes at least a first and a second optical path that are optically isolated from each other. When the first electronic device transmits data to the second electronic device, an optical transmitter of the first electronic device transmits to an optical receiver of the second electronic device via the first optical paths of the lenses of the first and second electronic devices. Similarly, when the first electronic device receives data from the second electronic device, an optical receiver of the first electronic device receives from an optical transmitter of the second electronic device via the second optical paths of the lenses of the first and second electronic devices. | 09-24-2015 |
20150334479 | DYNAMICALLY FORMED ACOUSTIC VOLUME - This application relates to methods and apparatus for waterproofing an electronic device having an audio output. More particularly a method for dynamically forming an acoustic volume of air for a speaker component is disclosed. The dynamically formed acoustic volume creates a sealed volume of air that prevents moisture from entering a portion of the device that includes moisture sensitive components. By dynamically forming the acoustic volume during a blow forming operation, the acoustic volume can utilize unused space within the electronic device in a highly efficient manner by occupying small areas of unused space that would otherwise go unused. | 11-19-2015 |
20150346127 | MOISTURE INGRESS SENSORS - This application relates to a moisture ingress sensor. In particular, this application relates to a moisture ingress sensor that can detect liquid ingress into an electronic device. The moisture ingress sensor can include a resistor, an N-channel MOSFET, an operation amplifier, comparators, and an AND logic gate. The moisture ingress sensor is configured to provide a lower power means for accurately detecting moisture in an electronic device. Multiple areas of the electronic device can include the moisture ingress sensor in order to optimize the detection of moisture for at a variety of regions of the electronic device. Additionally, the electronic device can record signals from the moisture ingress sensor and shut down components of the electronic device that could be affected by the detected moisture. Furthermore, the moisture ingress sensor can be tuned to detect one or more types of liquids. | 12-03-2015 |
20160093999 | UNIVERSAL MAGNETIC ADAPTER - Circuits, methods, and apparatus that may reduce the number of connector receptacles on an electronic device. Also, connector inserts mated with these receptacles may be easily removed in the event of an inadvertent disconnection. One example may provide a number of adapters, where each adapter may have a receptacle to accept one of a number of connector inserts. Each adapter may also have an insert portion to fit in a connector receptacle on an electronic device, where each of the number of connector inserts may fit in the same connector receptacle. | 03-31-2016 |