Patent application number | Description | Published |
20100075131 | Ligand Graft Functionalized Substrates - Polyethyleneimine and polyalkylene biguanide ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 03-25-2010 |
20100075560 | Ligand Graft Functionalized Substrates - Polyethyleneimine and polyalkylene biguanide ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 03-25-2010 |
20100317050 | POLYPEPTIDES FOR MICROBIAL DETECTION - Polypeptides which can be activated to cause the formation of pores in a lipid membrane are disclosed. Also disclosed are polypeptide compositions for the detection of target microorganisms and methods of using said compositions. | 12-16-2010 |
20110033633 | METHOD OF MAKING LIGAND FUNCTIONALIZED SUBSTRATES - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 02-10-2011 |
20110077358 | Functional Polymer With Pendant Color Changing Indicator - A functionalized polymer is disclosed that comprises the reaction product of a polymer having one or more pendant reactive functional groups and a color changing indictor having a co-reactive functional group. The co-reactive functional group of the color changing is able to react with the reactive functional group of the polymer to form a covalent bond. Therefore, the color changing indicator is pendant from the polymer. The color changing indicator maintains its ability to produce a visually discernable color change in the presence of an associated stimulus. | 03-31-2011 |
20110184078 | Ligand Functionalized Substrates - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 07-28-2011 |
20110217752 | LIGAND FUNCTIONALIZED POLYMERS - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 09-08-2011 |
20110224331 | HALOGEN-FREE FLAME RETARDANTS FOR EPOXY RESIN SYSTEMS - This disclosure relates to flame retardants that are useful for epoxy resin systems. Coating compositions and methods are provided the include an epoxy resin and a phosphate-containing flame retardant wherein the phosphate-containing flame retardant is selected from Group 1 metallic salts of a phosphate of a saccharide, Group 2 salts of a glycerophosphate, and Group 1 metallic salts of a polyphosphate. The provided flame retardants have low toxicity and are friendly to the environment. | 09-15-2011 |
20120252091 | LIGAND FUNCTIONAL SUBSTRATES - A substrate comprising a crosslinked polymer primer layer, and grafted thereto a ligand-functionalized polymer is provided. The grafted polymer has the requisite affinity for binding neutral or negatively charged biomaterials, such as cells, cell debris, bacteria, spores, viruses, nucleic acids, and proteins, at pH's near or below the pI's of the biomaterials. | 10-04-2012 |
20130164709 | SUBSTITUTED SACCHARIDE COMPOUNDS AND DENTAL COMPOSITIONS - Substituted saccharide compounds, dental compositions comprising substituted saccharide compounds, and methods of using dental compositions are described. In one embodiment, the substituted saccharide amide compound comprises a hydrophobic group and at least one free-radically polymerizable group with the proviso that the hydrophobic group is not bonded to the ethylenically unsaturated carbon atom of the free-radically polymerizable group. The hydrophobic group is typically bonded to a nitrogen atom of a saccharide amine residue or a carbonyl moiety of saccharide amide residue. | 06-27-2013 |
20130217032 | LIGAND FUNCTIONALIZED POLYMERS - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 08-22-2013 |
20130224825 | LIGAND FUNCTIONALIZED POLYMERS - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 08-29-2013 |
20130309693 | POLYPEPTIDES FOR MICROBIAL DETECTION - Polypeptides which can be activated to cause the formation of pores in a lipid membrane are disclosed. Also disclosed are polypeptide compositions for the detection of target microorganisms and methods of using said compositions. | 11-21-2013 |
20140004595 | LIGAND GRAFT FUNCTIONALIZED SUBSTRATES | 01-02-2014 |
20140087445 | METHOD OF MAKING LIGAND FUNCTIONALIZED SUBSTRATES - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 03-27-2014 |
20140364519 | METHOD OF MAKING LIGAND FUNCTIONALIZED SUBSTRATES - Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed. | 12-11-2014 |
20150104601 | ADHESIVE ARTICLE - The present invention comprises adhesive articles, adhesive compositions, and release liners. The release liners include silicone-based release formulations that can provide average and static release forces desirable for converting and handling soft adhesives, particularly adhesives of the type used in the electronics industry. In one embodiment, the silicone-based formulations include addition-cure silicone-based release formulations. | 04-16-2015 |
Patent application number | Description | Published |
20080279014 | MULTI-PHASE WORDLINE ERASING FOR FLASH MEMORY - Erasing wordlines at the same time can cause undesirable results because some wordlines are affected by electromagnetic waves of other wordlines. However, other wordlines are not affected because they are next to contacts. Therefore, it can be beneficial to erase wordlines in a multi-phase sequence that allows for erasing wordlines without an impact from other wordlines. | 11-13-2008 |
20090161462 | CONTROLLING AC DISTURBANCE WHILE PROGRAMMING - A system and methodology that can minimize disturbance during an AC operation associated with a memory, such as, program, read and/or erase, is provided. The system pre-charges all or a desired subset of the bit lines in a memory array to a specified voltage, during an AC operation to facilitate reducing AC disturbances between neighboring cells. A pre-charge voltage can be applied to all bit lines in a block in the memory array, or to bit lines associated with a selected memory cell and neighbor memory cells adjacent to the selected memory cell in the block. The system ensures that source and drain voltage levels can be set to desired levels at the same or substantially the same time, while selecting a memory cell. This can facilitate minimizing AC disturbances in the selected memory cell during the AC operation. | 06-25-2009 |
20100103732 | CONTROLLING AC DISTURBANCE WHILE PROGRAMMING - A system and methodology that can minimize disturbance during an AC operation associated with a memory, such as, program, read and/or erase, is provided. The system pre-charges all or a desired subset of the bit lines in a memory array to a specified voltage, during an AC operation to facilitate reducing AC disturbances between neighboring cells. A pre-charge voltage can be applied to all bit lines in a block in the memory array, or to bit lines associated with a selected memory cell and neighbor memory cells adjacent to the selected memory cell in the block. The system ensures that source and drain voltage levels can be set to desired levels at the same or substantially the same time, while selecting a memory cell. This can facilitate minimizing AC disturbances in the selected memory cell during the AC operation. | 04-29-2010 |
20100128521 | APPLYING NEGATIVE GATE VOLTAGE TO WORDLINES ADJACENT TO WORDLINE ASSOCIATED WITH READ OR VERIFY TO REDUCE ADJACENT WORDLINE DISTURB - Systems, methods, and devices that facilitate applying a predefined negative gate voltage to wordlines adjacent to a selected wordline associated with a memory cell selected during a read or verify operation to facilitate reducing adjacent wordline disturb are presented. A memory component can comprise an optimized operation component that can apply a predefined negative gate voltage to wordlines adjacent to a selected wordline associated with a memory cell selected for a read or verify operation, based at least in part on predefined operation criteria, to facilitate reducing adjacent wordline disturb in the selected memory cell to facilitate reducing a shift in the voltage threshold and maintain a desired operation window. The optimized operation component optionally can include an evaluator component that can facilitate determining whether a negative gate voltage applied to adjacent wordlines is to be adjusted to facilitate reducing adjacent wordline disturb below a predetermined threshold amount. | 05-27-2010 |
20100240210 | STRAPPING CONTACT FOR CHARGE PROTECTION - A semiconductor device includes a substrate and a memory cell formed on the substrate. The memory cell includes a word line. The semiconductor device also includes a protection area formed in the substrate, a conductive structure configured to extend the word line to the protection area, and a contact configured to short the word line and the protection area. | 09-23-2010 |
20110235412 | CONTROLLING AC DISTURBANCE WHILE PROGRAMMING - A system and methodology that can minimize disturbance during an AC operation associated with a memory, such as, program, read and/or erase, is provided. The system pre-charges all or a desired subset of the bit lines in a memory array to a specified voltage, during an AC operation to facilitate reducing AC disturbances between neighboring cells. A pre-charge voltage can be applied to all bit lines in a block in the memory array, or to bit lines associated with a selected memory cell and neighbor memory cells adjacent to the selected memory cell in the block. The system ensures that source and drain voltage levels can be set to desired levels at the same or substantially the same time, while selecting a memory cell. This can facilitate minimizing AC disturbances in the selected memory cell during the AC operation. | 09-29-2011 |
20120294103 | CONTROLLING AC DISTURBANCE WHILE PROGRAMMING - A system and methodology that can minimize disturbance during an AC operation associated with a memory, such as, program, read and/or erase, is provided. The system pre-charges all or a desired subset of the bit lines in a memory array to a specified voltage, during an AC operation to facilitate reducing AC disturbances between neighboring cells. A pre-charge voltage can be applied to all bit lines in a block in the memory array, or to bit lines associated with a selected memory cell and neighbor memory cells adjacent to the selected memory cell in the block. The system ensures that source and drain voltage levels can be set to desired levels at the same or substantially the same time, while selecting a memory cell. This can facilitate minimizing AC disturbances in the selected memory cell during the AC operation. | 11-22-2012 |
20130237022 | METHOD AND APPARATUS FOR PROTECTION AGAINST PROCESS-INDUCED CHARGING - A semiconductor device ( | 09-12-2013 |
20140063958 | N-Channel Multi-Time Programmable Memory Devices - N-channel multi-time programmable memory devices having an N-conductivity type substrate, first and second P-conductivity type wells in the N-conductivity type substrate, N-conductivity type source and drain regions formed in the first P-conductivity type well, the source and drain regions being separated by a channel region, an oxide layer over the N-conductivity type substrate; and a floating gate extending over the channel region and over the second P-conductivity type well in the N-conductivity type substrate, the multi-time programmable memory cell being programmable by hot electron injection and erasable by hot hole injection. | 03-06-2014 |
20150103601 | MULTI-PASS SOFT PROGRAMMING - Disclosed herein are system, method and computer program product embodiments for utilizing soft programming a nonvolatile memory. An embodiment operates by sequentially applying a single soft programming voltage pulse to all memory cells along each word line in the nonvolatile memory that fail soft programming verification in a first phase. This sequential application of the single soft programming voltage pulse in the first phase may repeat a predetermined number of times or until a threshold is met. Once the predetermined number of times completes, or the threshold is met, soft programming proceeds to a second phase where soft programming remains with each word line until all memory cells along the word line passes soft programming verification. | 04-16-2015 |
Patent application number | Description | Published |
20080278225 | METHOD AND APPARATUS FOR REGULATING POWER IN A FLYBACK CONVERTER - An integrated circuit includes an operational amplifier configured to receive a current sense voltage (V | 11-13-2008 |
20100061124 | System and Method for Power Conversion - A system and method for operating power supplies. A method comprises altering a current sense (CS) signal, turning off a switch of the converter in response to a determining that the CS signal is greater than or equal to a first threshold, and leaving on the switch of the converter in response to a determining that the CS signal is less than the first threshold. | 03-11-2010 |
20110267844 | Controller for a Resonant Switched-Mode Power Converter - An embodiment of the invention relates to an LLC power converter including a controller configured to regulate an output characteristic of the power converter by controlling a power converter switching frequency. In a first mode of operation, the controller turns off a secondary-side power switch earlier than a turn-off time of a primary-side power switch by a time difference that is controlled by a resistor coupled to an external circuit node. In a second mode of operation, the controller turns on a secondary-side power switch at substantially the same time as the primary-side power switch, and turns off the secondary-side power switch after a maximum on time that is a nonlinear function of a load current of the power converter. The nonlinear function is a substantially constant function of the load current for a value of the load current higher than a threshold value. | 11-03-2011 |
20120033458 | System and Method for Power Conversion - A system and method for operating power supplies. A method comprises altering a current sense (CS) signal, turning off a switch of the converter in response to a determining that the CS signal is greater than or equal to a first threshold, and leaving on the switch of the converter in response to a determining that the CS signal is less than the first threshold. | 02-09-2012 |
Patent application number | Description | Published |
20080205557 | Systems and Methods for Performing External Correction - A system is provided for performing external correction to reduce, or eliminate, the frequency dependent response related to an external device for receiving analog signals. The system includes an ADC and a spectrum processor for converting time-domain digital data into a spectrum. An external correction is provided between the ADC and the spectrum processor to reduce, or eliminate, the frequency dependent response associated with the external device. A corresponding method is provided that determines the frequency response of the external device, determines the gain at the center frequency, determines the normalized frequency response, constructs and inverse filter and applies the inverse filter to the digitized time-domain data and scales the results prior to any conversion, or transformation, into the frequency domain. | 08-28-2008 |
20080270440 | Data Compression for Producing Spectrum Traces - A data compression method for producing spectrum traces may divide signal data into multiple transform frames, produce a spectrum trace for each transform frame using a time domain to frequency domain transform, and combine the multiple frames from the analysis window into a single spectrum trace according to the spectrum amplitude of corresponding points in each frame. A device comprising a port to receive a signal or data set; and circuitry in communication with the port to segment the data record into frames, multiply each frame by a windowing function, transform each frame from a time domain representation to a frequency domain representation, and compress the frames using a detection function to create a single spectrum trace. This data compression provides flexibility to allow users to select analysis length, resolution bandwidth (RBW) and number of trace points independently, eliminating the coupling often found in traditional approaches. | 10-30-2008 |
20080281560 | Methods and Systems for Automatic Accommodation of Multiple Measurement Types by Shared Acquisition Hardware - Embodiments of the present invention comprise systems and methods for determining measurement apparatus acquisition parameters and related processing. | 11-13-2008 |
20090245686 | VIDEO BANDWIDTH RESOLUATION IN DFT-BASED SPECTRUM ANALYSIS - A method and apparatus for improved video bandwidth resolution in DFT-based spectrum analysis is disclosed. A first embodiment comprises an emulation of a continuous range of video bandwidths in DFT-based spectrum analysis using overlapping resolution bandwidth frames. A second embodiment utilizes frame weighting to reduce the standard deviation in the spectrum of noise signal to emulate a corresponding standard deviation of a specified video bandwidth. | 10-01-2009 |
Patent application number | Description | Published |
20110157415 | PHOTOGRAPHIC FLICKER DETECTION AND COMPENSATION - One disclosed embodiment includes detecting flicker in a photographic setting. A plurality of samples are obtained from a light detector circuit of a camera, each of which has a value that is dependent upon intensity of light incident upon the camera. The method further includes processing the samples to identify whether the incident light is varying in intensity at one or more pre-selected frequencies. The processing may include multiplying the samples with one or more periodic signals to generate scalar product outputs, and analyzing the scalar product outputs to ascertain the presence of periodic flicker. | 06-30-2011 |
20110187893 | VIDEO ARTIFACT SUPPRESSION VIA ROLLING FLICKER DETECTION - A method for suppressing banding and rolling flicker in video acquired by a video camera. The method comprises acquiring a plurality of video frames and assessing an amount of rolling flicker in the plurality of video frames. The method further comprises configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a first frequency if the amount of rolling flicker is above a threshold, and, configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a second frequency if the amount of rolling flicker is below the threshold. | 08-04-2011 |
20140041827 | Heat Transfer Device Management - Techniques involving management of a heat transfer device are described. In one or more implementations, a device includes a housing, a heat-generating device disposed within the housing, and a heat transfer device disposed within the housing. The heat transfer device has a powered active cooling device. The device also includes one or more modules that are configured to adjust operation of the powered active cooling device based on a likely orientation of the heat transfer device. | 02-13-2014 |
20140094973 | SENSED SOUND LEVEL BASED FAN SPEED ADJUSTMENT - Sounds sensed by a microphone of a device include sounds from a cooling fan of the device that varies based on the speed of the cooling fan, and other sounds used by a program of the device such as voice inputs. The sound level of sounds used by the program is determined, and the speed of the fan is adjusted so that a desired cooling level is attained while keeping the fan speed low enough that the noise from the fan does not interfere with the sounds used by the program. | 04-03-2014 |
20150084976 | Display Device Settings - Display device settings are described. In one or more implementations, an apparatus includes a display device and a display settings control module. The display device has a plurality of display settings, at least one of the display settings is adjustable to one of a plurality of different display setting levels. The display setting control module is implemented at least partially in hardware and configured to expose functionality having a plurality of different user selectable levels, the user selectable levels arranged in a plurality of intervals in which, user selectable levels in a corresponding said interval are successively spaced apart from each other at increasing amounts, one to another. | 03-26-2015 |
20150089248 | Accessory Device Power Management - Accessory device power management techniques are described in which a power exchange state for a system including a host computing device, an accessory device, and an adapter is recognized. Power exchange states may be defined according to relative states of charge (RSOC) and connection status for the system components and mapped to power management control actions. Responsive to the recognition of a current power exchange state, corresponding power management control actions may be ascertained and applied to jointly manage power for the system. For instance, the host device may draw supplemental power from a power source associated with an accessory device (e.g., a battery or power adapter) or supply power for use by the accessory device according to different states. Power exchanges may also be managed in accordance with capabilities of the accessory device identified based on authentication of the accessory device. | 03-26-2015 |
20150331463 | Power Management Contracts for Accessory Devices - Power management contracts for accessory devices are described. In one or more implementations, a power management contract is established for a system including a host computing device and an accessory device based at least in part upon power exchange conditions observed for the system. The power management contracts define operating constraints for power exchange between components of the system, including at least a power exchange direction and current limits. The host computing device and accessory devices are each configured to renegotiate the power management contract to dynamically change operating constraints in “real-time.” Additionally, different power management contracts may be associated with identifying data corresponding to different types of accessory devices. | 11-19-2015 |
20150363339 | Reversible Connector for Accessory Devices - Reversible connectors for accessory devices are described. In one or more implementations, a connector cable for an accessory of a host computing device is configured such that a head of the connector cable may be plugged into a corresponding port of the host in either orientation (straight or reverse). The host computing device is configured to sample signals associated with allocated pins of the connector to detect connection of the connector to an accessory port and to ascertain an orientation of the connector. A combination of high and low values of signals conveyed via these allocated pins upon insertion of the connector may be used by a controller of the host to distinguish between different types of devices and to resolve the orientation of the connector cable. A switching mechanism of the host computing device may then be configured to automatically route signals accordingly. | 12-17-2015 |
Patent application number | Description | Published |
20150070273 | USER INTERFACE BASED ON OPTICAL SENSING AND TRACKING OF USER'S EYE MOVEMENT AND POSITION - Methods, systems, and devices are disclosed for optical sensing and tracking of eye movement. In one aspect, a method for tracking the movement of an eye includes emitting light toward an eye of a user using multiple light sources substantially equally spaced from a photodetector module of a device, receiving at the photodetector module at least a partial retroreflection of the light emitted by each of the multiple light sources retroreflected from the eye, and determining a positional parameter of the eye based on differential values of the at least partial retroreflections corresponding to the multiple light sources. | 03-12-2015 |
20150145777 | EYE TRACKING AND USER REACTION DETECTION - Methods, systems, and devices are disclosed for optical sensing and tracking of eye movement. In one aspect, a device for obtaining a user's eye dynamics data includes a display screen to present at least one content. The device includes an eye sensing module to obtain the user's eye dynamics data including the user's eye movement while presenting to the user the at least one content on the display screen. The device includes a processor in communication with the eye sensing module. The processor can determine the user's reaction to the at least one content presented on the display screen based at least partly on the obtained user's eye dynamics data. | 05-28-2015 |
20150146944 | SECURE HUMAN FINGERPRINT SENSOR - Devices, systems, and techniques are provided for performing human fingerprint detection and authentication for authenticating a request to access a locked mobile device equipped with a fingerprint detection module. In one aspect, responsive to detecting a contact from an object with the fingerprint detection module, described technique can be used to determines whether the contact from the object is from human skin. When determined that the detected contact from the object is from human skin, a presence of a human fingerprint can be detected from the object making contact. The detected fingerprint data can be obtained from the object and compared against stored fingerprint profiles associated with an authorized user of the locked mobile device. Based on the comparing, the request to access the locked mobile device can be granted. | 05-28-2015 |
20150149310 | WEARABLE COMMUNICATION DEVICES FOR SECURED TRANSACTION AND COMMUNICATION - A wearable device for capacitive coupled communications is described. The wearable device includes capacitive sensor transceiver circuitry configured to receive a capacitive coupled signal from a host device. The capacitive coupled signal is received through a body of a user of the wearable device and is modulated to include a request for authentication data to authenticate the wearable device with the host device. The wearable device includes processing circuitry in communication with the capacitive sensor transceiver circuitry to process the received capacitive coupled signal and transmit authentication data modulated on a capacitive coupled reply signal to the host device. The capacitive coupled reply signal modulated with the authentication data is transmitted through the body of the user of the wearable device. The capacitive sensor transceiver circuitry receives another capacitive coupled signal from the host device modulated with information indicating a successful authentication of the wearable device with the host device. | 05-28-2015 |
20150195007 | FINGERPRINT SENSOR MODULE-BASED DEVICE-TO-DEVICE COMMUNICATION - Devices, systems, and techniques are provided for enabling device-to-device communications between a first device equipped with a fingerprint detection module that includes a metal contact and a second device equipped with a capacitive coupling port. In one aspect, a technique for enabling the device-to-device communications includes: positioning the first device and the second device so that the metal contact of the fingerprint detection module of the first device is in capacitive coupling with the capacitive coupling port of the second device; and establishing device-to-device communication between the first device and the second device through electrical signaling between the metal contact of the first device and the capacitive coupling port of the second device. During the device-to-device communication, the metal contact operates as a transmitting and receiving electrode for sending and receiving electrical signals to and from the capacitive coupling port. | 07-09-2015 |
20150199006 | OPTICAL EYE TRACKING - Methods, systems, and devices are disclosed for optical sensing and tracking of eye movement. In one aspect, a method for tracking the movement of an eye includes emitting a first modulated light and a second modulated light toward an eye of a user, wherein the first modulated light and the second modulated light have substantially the same modulation frequency, but the modulation phases of the two modulated lights are substantially opposite to each other; receiving at a photodetector module a returned light including at least a partial retroreflected light from the eye of the user based on the first and second modulated lights; and processing the output signal from the photodetector module to determine positional and dimensional parameters of the eye of the user based at least on the partial retroreflected light corresponding to the first and second modulated lights. | 07-16-2015 |
20150269563 | FINANCIAL TRANSACTION BASED ON DEVICE-TO-DEVICE COMMUNICATIONS - The systems, devices and techniques disclosed provide a credit card type device which is integrated with active electronics to perform credit card type financial transactions. In one aspect, a credit card type device includes a device-to-device communication port to wirelessly communicate with another device in an attempt to complete a financial transaction. The credit card type device includes an authentication mechanism to authenticate access to the credit card type device for the initiated financial transaction. The credit card type device includes controller circuitry to control operations of the device-to-device communication port and the authentication mechanism. The credit card type device includes an output device to display information associated with the access authentication and the financial transaction. | 09-24-2015 |
20160004899 | INTEGRATION OF TOUCH SCREEN AND FINGERPRINT SENSOR ASSEMBLY - Devices, systems, and techniques are provided for integrating a touch screen with a fingerprint detection module as an assembly for a mobile device. The integrated touch screen/fingerprint sensor assembly includes at least two glass layers bonded together to provide overall mechanical strength for the touch screen display. The upper glass layer is a toughened/hardened cover glass that does not have an opening for fitting the fingerprint detection module through this glass layer. The lower glass layer is a support glass layer underneath the hardened cover glass to provide additional mechanical strength and to include an opening at a location close to an end of the support glass layer. The integrated touch screen/fingerprint sensor assembly also includes a fingerprint detection module positioned within the opening of the support glass layer and directly underneath the hardened cover glass. | 01-07-2016 |
20160022160 | OPTICAL HEART RATE SENSOR - Techniques, systems and apparatus are described for implementing a heart rate sensor based on optical measurements of color response of human blood. An optical heart rate sensor can include light source circuitry including a first light emitting diode (LED) to output a first source light signal to a target measurement site, a second LED to output a second source light signal to the target measurement site, a first current pulse driver communicatively coupled to the first LED to modulate the first source light signal output from the first LED at a first predetermined frequency and a second current pulse driver communicatively coupled to the second LED to modulate the second source light signal output from the second LED at a second predetermined frequency different from the first predetermined frequency. The optical heart rate sensor can include detector circuitry including a light detecting photodiode connected to a bias voltage. | 01-28-2016 |