Patent application number | Description | Published |
20120200284 | POWER MEASUREMENT DEVICE - A power measurement device for sampling current or voltage signals of a power system to produce a 1-bit delta-sigma bitstream. The power measurement device includes a frequency locked loop for determining the power system frequency directly from the 1-bit delta-sigma bitstream. The frequency locked loop includes a 1-bit rotate CORDIC that is configured to produce difference signals having a multi-bit word for each bit of the 1-bit delta-sigma bitstream, and a phase error calculator that determines the difference between the phase of the power system frequency and a phase ramp generated from a frequency measurement value in a frequency register. The phase error calculator feeds back a phase correction signal to the frequency register to lock the frequency measurement value to the power system frequency. | 08-09-2012 |
20150316587 | METHODS AND DEVICES FOR DETERMINING ROOT MEAN SQUARE OF A DELTA-SIGMA MODULATED SIGNAL - Described is a method and devices to determine root-mean-square of a delta- sigma modulated signal. The method includes filtering the delta-sigma modulated signal to produce a multi-bit filtered signal, delaying a copy of the delta-sigma modulated signal by a fixed number of samples to align with the filtered input, setting a sign of each multi-bit value of the multi-bit filtered signal based upon a corresponding sample value of the delayed copy of the delta-sigma modulated signal, to generate a hybrid signal, summing the hybrid signal to produce a summed signal, and determining the average of the summed signal and the square root of the average to produce a root-mean-square value. | 11-05-2015 |
20150326387 | COMMUNICATION SYSTEMS AND METHODS FOR DISTRIBUTED POWER SYSTEM MEASUREMENT - Described are methods, devices and systems for communicating data measurements from a sampling device to a remote master device in a distributed power measurement system using high-speed isochronous data links. The sampling device receives a time-stamp packet from the master device over the isochronous data link, the time-stamp packet containing a sequence number of the time-stamp packet, and the sampling device starts a counter clocked by a local clock signal to determine an offset time since receipt of the time-stamp packet. The sampling device obtains power system data and generates and transmits framed output data to the remote master device over the isochronous data link. The framed output data includes the sequence number, the offset time, and a data payload that includes the power system data. | 11-12-2015 |
20150355248 | POWER MEASUREMENT DEVICE - A power measurement device for sampling current or voltage signals of a power system to produce a 1-bit delta-sigma bitstream. The power measurement device includes a frequency locked loop for determining the power system frequency directly from the 1-bit delta-sigma bitstream. The frequency locked loop includes a 1-bit rotate CORDIC that is configured to produce difference signals having a multi-bit word for each bit of the 1-bit delta-sigma bitstream, and a phase error calculator that determines the difference between the phase of the power system frequency and a phase ramp generated from a frequency measurement value in a frequency register. The phase error calculator feeds back a phase correction signal to the frequency register to lock the frequency measurement value to the power system frequency. | 12-10-2015 |
Patent application number | Description | Published |
20140347176 | METHOD AND APPARATUS TO PROVIDE HAPTIC FEEDBACK BASED ON MEDIA CONTENT AND ONE OR MORE EXTERNAL PARAMETERS - The disclosure relates to systems and methods of providing haptic feedback based on media content and one or more external parameters used to customize the haptic feedback. The system may modify or otherwise alter haptic feedback that is determined using the media content alone. In other words, the system may use both the media content and the external parameters to determine haptic feedback that should be output to the user or others. The external parameters may include, for example, sensor information, customization information, and/or other external parameters that may be used to customize the haptic feedback. | 11-27-2014 |
20140347177 | METHOD AND SYSTEM FOR HAPTIC DATA ENCODING AND STREAMING - A method includes receiving digital content data including audio data and/or video data, generating haptic data using at least some of the received digital content data, encoding the haptic data for efficient transmission over a communication network, multiplexing the encoded haptic data with the received digital content data, embedding information for decoding the encoded haptic data in metadata of the multiplexed data stream, and sending the multiplexed data stream over the communication network. The method may include analyzing the haptic data to determine at least one characteristic of the haptic data, and the encoding the haptic data may include encoding, based on the determined characteristic, the haptic data to meet a pre-defined criteria. | 11-27-2014 |
20150323993 | SYSTEMS AND METHODS FOR PROVIDING HAPTIC FEEDBACK FOR REMOTE INTERACTIONS - A system includes a first electronic device and a second electronic device. The first electronic device includes a sensor configured to sense or property experienced by the first electronic device, and a transmitter configured to transmit a signal based on output from the sensor. The second electronic device is in signal communication with the first electronic device. The second electronic device includes a receiver configured to receive the transmitted signal, a detector configured to determine an object that a user of the second device is focusing on, a processor configured to generate a haptic signal representative of the transmitted signal if it is determined that the object the user is focusing on corresponds with a location of the first electronic device, and a haptic output device configured to receive the haptic signal and generate a haptic effect to the user. | 11-12-2015 |
Patent application number | Description | Published |
20090139028 | MOVABLE SIDERAIL APPARATUS FOR USE WITH A PATIENT SUPPORT APPARATUS - The present invention provides a movable siderail apparatus ( | 06-04-2009 |
20100079304 | LOCATION DETECTION SYSTEM FOR A PATIENT HANDLING DEVICE - A location detection system for a facility including a patient handling device for supporting a patient and being mobile for positioning at a location in the facility, a locator fixed relative to the patient handling device for transmitting a unique location identifier corresponding to the location of the patient handling device, and a processing station remote from the patient handling device and the locator for receiving the unique location identifier such that the location of the patient handling device can be determined and monitored remotely from the patient handling device. The system further includes a receiver mounted to the patient handling device for receiving the unique location identifier from the locator and a communication module with a unique ID for the patient handling device mounted to the patient handling device and in communication with the receiver and transmitting the unique ID and the unique location identifier received by the receiver from the patient handling device to the processing station such that the patient handling device acts as a communication link between the locator and the processing station, and the processing station receiving the unique location identifier and the unique ID and correlating the unique location identifier with the unique ID and further correlating the unique ID of the patient handling device with a patient supported by the patient handling device wherein the processing station can track the patient handling device and the patient supported thereby. | 04-01-2010 |
20110162141 | HOSPITAL BED - A method of actuating a manually operable brake on a caster wheel of a patient support apparatus to stop motion of the apparatus includes electrically coupling the control system of the patient support to an actuator at the patient support, generating actuating signals with the control system based on input at the patient support apparatus, transmitting the actuating signals to the actuator to thereby actuate the actuator to output a driving force, and mechanically coupling the driving force of the actuator with the manually operable brake to thereby actuate the manually operable brake and thereby brake the caster wheels. | 07-07-2011 |
20110231996 | HOSPITAL BED - A patient support apparatus includes a frame, with a barrier, and a patient support surface supported in the frame. The apparatus further includes a control system with a controller, which is incorporated into the surface or the frame, and which is in communication with at least one functional component associated with the surface or the frame for controlling or monitoring the functional component. The control system further includes a touch-screen display in communication with the controller for controlling the functional component, which is positioned in the barrier between the exterior and interior side of the barrier wherein the display is incorporated into the barrier and accessible at the exterior or interior side for access by a user. The display is configured to allow the user to select the functional component and control or monitor a function associated with the selected functional component and includes a touch-selectable icon at the display representative of a function associated with the selected component, and with the icon operable to adjust the function of the selected component. | 09-29-2011 |
20110277242 | HOSPITAL BED - A patient support apparatus includes a deck, a plurality of side rails, a control panel, and a plurality of subsystems, such as a bed exit system that detects when a patient may exit from the support apparatus, or a lifting mechanism to raise and lower the deck. A controller is in communication with the control panel and is adapted to monitor conditions regarding the side rails and/or the other subsystems. At least one lamp is also provided on the patient support apparatus that is adapted to be illuminated in a first manner when a plurality of monitored conditions remain in a desired state, and in a second manner when at least one of the plurality of monitored conditions changes to an undesired state. | 11-17-2011 |
20120176221 | LOCATION DETECTION SYSTEM FOR A PATIENT HANDLING DEVICE - A location detection system for a facility includes a patient handling device with a communication module with a unique ID, a locator fixed relative to the handling device for transmitting a unique location identifier corresponding to the location of the handling device, and a receiver mounted to the patient device for receiving the unique location identifier. A processing station remote from the handling device and the locator receives the unique location identifier and the unique ID and further correlates the unique ID with a patient supported by the handling device wherein the processing station can track the handling device and the patient supported thereby such that the location of the patient and handling device can be determined and monitored remotely from the handling device. | 07-12-2012 |
20130076490 | LOCATION DETECTION SYSTEM FOR A DEVICE - A location detection system includes a device that is mobile for positioning at a location and has a unique device ID. The device also has circuitry for controlling one or more functions of the device and includes a network interface. A location transmitting device is provided that is spaced from the device for communicating a unique location identifier corresponding to the location of the device to the device. The circuitry is operable to send device data, the unique device ID, and the unique location identifier from the device by way of the network interface. | 03-28-2013 |
20140059768 | HOSPITAL BED - A patient support apparatus includes a deck, a plurality of side rails, a control panel, and a plurality of subsystems, such as a bed exit system that detects when a patient may exit from the support apparatus, or a lifting mechanism to raise and lower the deck. A controller is in communication with the control panel and is adapted to monitor conditions regarding the side rails and/or the other subsystems. At least one lamp is also provided on the patient support apparatus that is adapted to be illuminated in a first manner when a plurality of monitored conditions remain in a desired state, and in a second manner when at least one of the plurality of monitored conditions changes to an undesired state. | 03-06-2014 |
20140237721 | PATIENT SUPPORT APPARATUS WITH BRAKING SYSTEM - A patient support apparatus includes a patient support surface, a manually operable brake operatively associated with the patient support surface, a manual brake activation handle or pedal for manually operating the manually operable brake, and an electrically powered actuator. The actuator is mechanically coupled to the manually operable brake and to the manual brake activation handle or pedal, and actuates the manually operable brake and moves the manual brake activation handle or pedal from a first position to a second portion in response to a signal at the patient support apparatus. | 08-28-2014 |
Patent application number | Description | Published |
20100307223 | Apparatus and Method for Measuring and Recording Data from Violent Events - An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, different source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis. | 12-09-2010 |
20110098934 | Method and Apparatus for Measuring Data for Injury Analysis - An apparatus as provided for measuring acceleration of a person's head or other object. The apparatus comprises a sensor for sensing acceleration and a controller for controlling recording of data resulting from the sensed acceleration due to an explosive force. The controller is adapted to determine whether or not to enable recording of the data based on the sensed acceleration. A data receiver is provided to receive the sensed acceleration data from the sensing means, and requires electrical power to enable data to be received thereby. The controller controls electrical power to the receiver so that if the sensed acceleration reaches or exceeds a predetermined value, electrical power to the data receiver is enabled. The recorded acceleration data may be used for injury analysis. | 04-28-2011 |
20110283791 | Apparatus and Method for Measuring and Recording Data from Violent Events - An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, predetermined source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis. | 11-24-2011 |
20110290018 | Apparatus and Method for Measuring and Recording Data from Violent Events - An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, predetermined source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis. | 12-01-2011 |
20120155039 | Apparatus and Method for Measuring and Recording Data from Violent Events - An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, predetermined source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis. | 06-21-2012 |
20130007936 | Apparatus for Measuring Data for Injury Analysis with Power Management - An apparatus for recording data indicative of acceleration of a part of a person's body or other object, including first memory means for receiving acceleration data from an acceleration sensor, second memory means operatively coupled to the first memory means for receiving data from the first memory means, and a data transfer controller for controlling the transfer of data from the first memory means to the second memory means based on the acceleration data. | 01-10-2013 |
20130013243 | Method of Calibrating a Data Recording Unit - A method of calibrating a data recording unit for measuring head acceleration, including the steps of providing a data recording unit mounted to a head protector, mounting the head protector on a support, subjecting the head protector and support to a force or pressure, measuring acceleration of the head protector resulting from the force or pressure, measuring acceleration of the support resulting from the force or pressure, and determining a relationship between the measured acceleration of the head protector and of the support. | 01-10-2013 |
Patent application number | Description | Published |
20100315449 | COMPENSATION TECHNIQUE FOR COLOR SHIFT IN DISPLAYS - A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point. | 12-16-2010 |
20110130981 | SYSTEM AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS - Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors. | 06-02-2011 |
20130235023 | SYSTEM AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS - A voltage-programmed display system allows measurement of effects on pixels in a panel that includes both active pixels and reference pixels coupled to a supply line and a programming line. The reference pixels are controlled so that they are not subject to substantial changes due to aging and operating conditions over time. A readout circuit is coupled to the active pixels and the reference pixels for reading at least one of current, voltage or charge from the pixels when they are supplied with known input signals. The readout circuit is subject to changes due to aging and operating conditions over time, but the readout values from the reference pixels are used to adjust the readout values from the active pixels to compensate for the unwanted effects. | 09-12-2013 |
20130257845 | RESETTING CYCLE FOR AGING COMPENSATION IN AMOLED DISPLAYS - A method of voltage-programming a pixel circuit in a display panel to remove, before programming the pixel circuit, effects due to short-term effects such as caused by fast light transitions or effects due to previous pixel circuit measurements such as charge trapping. During a resetting cycle, the pixel circuit is programmed with a reset voltage value corresponding to a maximum or a minimum voltage value. Then, during a calibration cycle, the pixel circuit is programmed with a calibration voltage based on previously extracted data for the pixel circuit, a pixel current of the pixel circuit is measured, and the extracted data for the pixel circuit is updated based on the measured pixel current. Then, the pixel circuit is programmed with a video data that is calibrated with the updated extracted data. The pixel circuit is finally driven according to the programmed video data and emits a commensurate amount of light. | 10-03-2013 |
20130265338 | COMPENSATION TECHNIQUE FOR COLOR SHIFT IN DISPLAYS - A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point. | 10-10-2013 |
20140198092 | DRIVING SCHEME FOR EMISSIVE DISPLAYS PROVIDING COMPENSATION FOR DRIVING TRANSISTOR VARIATIONS - Systems and methods detect and compensate for process or performance-related non-uniformities and/or degradation in displays. The systems and methods can compare a device current with one or more reference currents to generate an output signal indicative of the difference between the device and reference currents. This output voltage can be amplified, and quantized and then be used to determine how the device current differs from the reference current and to adjust the programming voltage for the device of interest accordingly. | 07-17-2014 |
20140267215 | AMOLED DISPLAYS WITH MULTIPLE READOUT CIRCUITS - The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage. | 09-18-2014 |
20140375701 | SYSTEM AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS - Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors. | 12-25-2014 |
20150248860 | DISPLAY SYSTEM - A method of recovering a display having a plurality of pixels, each having a light emitting device and a driving transistor for driving the light emitting device. The driving transistor and the light emitting device are coupled in series between a first power supply and a second power supply. The method illuminates the semiconductor device while negatively biasing the pixel circuit with a recovery voltage different from an image programming voltage. The illuminating may follow a first cycle implementing an image display operation that includes programming the pixel circuit for a valid image and driving the pixel circuit to emit light according to the programming. | 09-03-2015 |
20160005350 | COMPENSATION TECHNIQUE FOR COLOR SHIFT IN DISPLAYS - A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point. | 01-07-2016 |
20160027382 | DISPLAY SYSTEM WITH COMPENSATION TECHNIQUES AND/OR SHARED LEVEL RESOURCES - A voltage-programmed display system allows measurement of effects on pixels in a panel that includes both active pixels and reference pixels coupled to a supply line and a programming line. The reference pixels are controlled so that they are not subject to substantial changes due to aging and operating conditions over time. A readout circuit is coupled to the active pixels and the reference pixels for reading at least one of current, voltage or charge from the pixels when they are supplied with known input signals. The readout circuit is subject to changes due to aging and operating conditions over time, but the readout values from the reference pixels are used to adjust the readout values from the active pixels to compensate for the unwanted effects. | 01-28-2016 |
Patent application number | Description | Published |
20090215720 | Polysaccharides Compositions Comprising Fucans and Galactans and their Use to Reduce Extravasation and Inflammation - A use of an anti-inflammatory polysaccharides composition comprising fucans and galactans to inhibit the release of one or more of IL-8, PGE2 and VEGF by a cell activated during an inflammatory process and an anti-inflammatory composition comprising a ratio of brown algae fucans/red algae galactans of between about 2.5/1 (w/w) to about 40/1 (w/w), the galactans having a molecular weight higher than about 100 kDa, and the fucans having a molecular weight between about 0.1 kDa and 100 kDa. | 08-27-2009 |
20110150795 | COSMETIC COMPOSITIONS COMPRISING EXOPOLYSACCHARIDES DERIVED FROM MICROBIAL MATS, AND USE THEREOF - Disclosed herein is a skin care composition comprising at least one exopolysaccharide (EPS) originating from a microbial mat, wherein the EPS is in a concentration of about 0.001% w/w to about 1.5 w/w of the composition. Preferably, the EPS is derived from microorganism isolated from microbial mats found in French Polynesia. The composition is useful in reducing and preventing signs of skin aging and environmental damage by altering skin cell metabolism and improving hydration. | 06-23-2011 |
20110311640 | COSMETIC COMPOSITIONS COMPRISING ASTEROIDEA BODY FLUID AND METHODS OF USE THEREOF - A skin care composition comprising an isolated Asteroidea body fluid or extract thereof is described. Uses and methods of use of the composition for the prevention and/or treatment of a skin disorder or condition, such as skin-aging signs, are also described. | 12-22-2011 |
20130190269 | POLYSACCHARIDES COMPOSITIONS COMPRISING FUCANS AND GALACTANS AND THEIR USE TO REDUCE EXTRAVASATION AND INFLAMMATION - A method for inhibiting the release of one or more of IL-8, PGE2 and VEGF by a cell activated during an inflammatory process, said method comprising administering to said cell an anti-inflammatory polysaccharide composition comprising fucans and galactans to a cell, wherein the ratio of fucans to galactans in said composition enables a reduction in the cytotoxicity of said galactans and an anti-inflammatory composition comprising a ratio of brown algae fucans/red algae galactans of ranging from about 2.5/1 (w/w) to about 40/1 (w/w), the galactans having a molecular weight higher than about 100 kDa, and the fucans having a molecular weight ranging from about 0.1 kDa and 100 kDa. | 07-25-2013 |