Patent application number | Description | Published |
20120306655 | ADAPTIVE LOW-BATTERY WARNINGS FOR BATTERY-POWERED ELECTRONIC DEVICES - The disclosed embodiments provide a system that facilitates the use of an electronic device. The electronic device may be a keyboard, a mouse, a trackpad, a remote control, a mobile phone, a wireless phone, a toy, a portable media player, a game controller, and/or a camera. During operation, the system monitors a state-of-charge of a battery used to power the electronic device. Next, the system calculates a charge threshold associated with a low-battery warning for the battery based on the monitored state-of-charge. If the state-of-charge of the battery reaches the charge threshold, the system generates the low-battery warning. | 12-06-2012 |
20150042480 | ADAPTIVE LOW-BATTERY WARNINGS FOR BATTERY-POWERED ELECTRONIC DEVICES - The disclosed embodiments provide a system that facilitates the use of an electronic device. The electronic device may be a keyboard, a mouse, a trackpad, a remote control, a mobile phone, a wireless phone, a toy, a portable media player, a game controller, and/or a camera. During operation, the system monitors a state-of-charge of a battery used to power the electronic device. Next, the system calculates a charge threshold associated with a low-battery warning for the battery based on the monitored state-of-charge. If the state-of-charge of the battery reaches the charge threshold, the system generates the low-battery warning. | 02-12-2015 |
Patent application number | Description | Published |
20110103235 | WIRELESS LOCAL AREA NETWORK TEST SYSTEM WITH FORCED TRANSMIT RATES DURING PROTOCOL-BASED TESTING - A system for performing wireless local area network testing of wireless devices may include a wireless local area network tester and a device under test. The tester and device under test may communicate over a wireless link. To ensure that the tester accurately analyzes test data, a data rate table is used that specifies fixed data transmission rates to be used by the device under test under both high-quality link conditions and low-quality link conditions. This forces the device under test to transmit control packets at the same high data rate during packet loopback testing, regardless of link quality. When the captured control packets are analyzed at the tester, both low-link-quality data and high-link-quality data may be analyzed using a common test template, ensuring accurate results. | 05-05-2011 |
20120207030 | METHODS FOR TESTING WIRELESS LOCAL AREA NETWORK TRANSCEIVERS IN WIRELESS ELECTRONIC DEVICES - An electronic device may include wireless circuitry such as cellular telephone transceiver circuitry and wireless local area network (WLAN) transceiver circuitry. The telephone transceiver may be used to establish long-range wireless connectivity, whereas the WLAN transceiver may be used to establish short-range wireless connectivity. The performance of the WLAN transceiver may suffer in the presence of heat-generating operations. The performance of the WLAN transceiver may be tested using test equipment while the electronic device is configured in a test mode and a normal user mode. During testing, the WLAN transceiver may be directed to transmit radio-frequency signals while the telephone transceiver is toggled on and off. The test equipment may be used to analyze the radio-frequency signals to measure the transmit power level, transmitter constellation error, transmit spectrum mask, and other performance parameters to determine whether that device under test satisfies design criteria. | 08-16-2012 |
20130055119 | Device, Method, and Graphical User Interface for Variable Speed Navigation - An electronic device displays a first page in a set of pages on a display; detects a first gesture at a location on a touch-sensitive surface corresponding to a predefined area on the display; in response to detecting the first gesture, displays a navigation object in proximity to the predefined area; detects a second gesture on the touch-sensitive surface with respect to the navigation object; and in response to detecting the second gesture, performs a navigation operation with respect to the first page at a specified velocity and in accordance with a direction of the second gesture. The velocity of the operation is based on a condition of the second gesture with respect to the navigation object. | 02-28-2013 |
20130149972 | Methods and Apparatus for Testing Radio-Frequency Power Amplifier Performance - Wireless communications circuitry such as radio-frequency power amplifiers may be tested using a test station. A test station may include a test host and a test unit coupled to the test host. The power amplifiers may be configured to transmit radio-frequency signals in allocated resource blocks within a particular radio channel. The power amplifier circuits may be configured to transmit signals utilizing only an allocated portion of its total available resource blocks so that the transmitted signals are output at maximum power levels. The power amplifiers may transmit in resource blocks near a low channel edge during a first time period and may transmit in resource blocks near a high channel edge during a second time period. The test unit may receive the signals generated from the power amplifiers and may perform desired radio-frequency measurements (e.g., test unit may measure adjacent channel leakage radio, signal-to-interference ratio, error vector magnitude, etc.). | 06-13-2013 |
20130288610 | Wireless Communications Circuitry with Temperature Compensation - A test system for calibrating wireless electronic devices is provided. The test system may include a test host, a radio communication tester, and a temperature chamber in which an electronic device under test (DUT) may be tested. The DUT may include a temperature sensor for monitoring an internal temperature of the DUT and may include power amplifier circuitry for outputting radio-frequency test signals. The tester may be used to measure output power levels of the radio-frequency test signals when the DUT is operating at a given reference temperature and when the DUT is operating at target operating temperature levels other than the given reference temperature. Power amplifier output level offset compensation values may be computed by comparing output power levels measured at each of the target operating temperatures to output power levels measured at the given reference temperature and may be stored in the DUT prior to normal operation. | 10-31-2013 |
20140133321 | Method for Validating Radio-Frequency Performance of Wireless Electronic Devices - A test system for testing a wireless electronic device is provided. The test system may include a test host and a tester. The test host may instruct the electronic device under test (DUT) to transmit radio-frequency test signals in a selected resource block of a desired channel identified by a channel number in the Long Term Evolution frequency band. The tester may measure harmonic output power levels of the radio-frequency test signals transmitted by the DUT at harmonic frequencies of the selected resource block. The test host may compare the measured harmonic output power levels to threshold power levels to characterize the radio-frequency performance of wireless circuitry in the DUT. The test system may test the radio-frequency performance of the DUT for radio-frequency test signals transmitted by the DUT in some or all resource blocks in the desired Long Term Evolution band. | 05-15-2014 |
Patent application number | Description | Published |
20090048552 | METHODS AND DEVICES FOR REMOVAL OF A MEDICAL AGENT FROM A PHYSIOLOGICAL EFFERENT FLUID COLLECTION SITE - Methods and devices for selectively removing an agent from a physiological site, e.g., a physiological efferent fluid collection site, are provided. Aspects of the invention include fluid removal (e.g., aspiration) devices having a fluid removal element and a flow modulator positioned at a distal end of the fluid removal element. The flow modulator is configured to converge intersecting fluid flow paths into the fluid removal element. Also provided are systems and kits for performing the subject methods. The subject invention finds use in a variety of different applications, including the selective removal of both therapeutic and diagnostic agents from a variety of different physiological sites. | 02-19-2009 |
20110263976 | Methods and Devices for Endovascular Introduction of an Agent - Methods and devices for introduction of an agent to a vascular physiological site are provided. Aspects of the methods include employing an agent delivery device and an aspiration device to introduce and remove agent from a vascular site in a manner sufficient to minimize agent loss. Also provided are systems and kits for performing the subject methods. The subject invention finds use in a variety of different applications. | 10-27-2011 |
20130131614 | Methods and Devices for Removal of a Medical Agent from a Physiological Efferent Fluid Collection Site - Methods and devices for selectively removing an agent from a physiological site, e.g., a physiological efferent fluid collection site, are provided. Aspects of the invention include fluid removal (e.g., aspiration) devices having a fluid removal element and a flow modulator positioned at a distal end of the fluid removal element. The flow modulator is configured to converge intersecting fluid flow paths into the fluid removal element. Also provided are systems and kits for performing the subject methods. The subject invention finds use in a variety of different applications, including the selective removal of both therapeutic and diagnostic agents from a variety of different physiological sites. | 05-23-2013 |
Patent application number | Description | Published |
20090071455 | TOY PROJECTILE LAUNCHER - The present invention is a toy projectile launcher in the form of a role play accessory such as a belt. The belt assembly includes a strap, a launcher housing, and projectiles stored on the belt strap. The belt strap feeds through the launcher housing so that projectiles may be launched from the strap. In one embodiment the launcher is hand-held, and includes a handle which serves both as a means for holding the launcher during operation and as a power switch for the launcher. Projectiles may be discharged singly from the launcher or continuously in a rapid-fire mode. | 03-19-2009 |
20110041822 | Toy Projectile Launcher - The present invention is a toy projectile launcher in the form of a role play accessory such as a belt. The belt assembly includes a strap, a launcher housing, and projectiles stored on the belt strap. The belt strap feeds through the launcher housing so that projectiles may be launched from the strap. In one embodiment the launcher is hand-held, and includes a handle which serves both as a means for holding the launcher during operation and as a power switch for the launcher. Projectiles may be discharged singly from the launcher or continuously in a rapid-fire mode. | 02-24-2011 |
20140323012 | TWIST-WAIST PUNCHING FIGURE - A toy figure, with an upper torso; a shoulder flange rotatably mounted on the upper torso; and an extendable arm pivotally mounted to the shoulder flange. The extendable arm may pivot with respect to both the shoulder flange and the upper torso to extend away from the upper torso, and includes an elbow that allows the extendable arm to straighten and bend. The toy figure includes an actuating mechanism disposed within the upper torso that forces the extendable arm to pivot and extend away from the upper torso. A tie rod may interconnect the shoulder flange to a portion of the extendable arm through the elbow so that so that pivotal movement of the arm around the shoulder flange causes the extendable arm to straighten. | 10-30-2014 |
Patent application number | Description | Published |
20140133049 | UNIVERSAL MAGNETIC RECORDING HEAD CHIP - A module according to one embodiment includes an array of N piggyback or merged first data transducers positioned towards a media facing surface of the module; and M second data transducers interleaved with the array of piggyback or merged data transducers, wherein the second data transducers are single data transducers, at least some of the data transducers being coupled to pads. A module according to another embodiment includes an array of N first data transducers positioned towards a media facing surface of the module, the first data transducers including at least one of data readers, data writers, and combinations thereof; and M second data transducers interleaved with the array of first data transducers, the second data transducers including at least one of data readers, data writers, and combinations thereof, wherein less than all of the first and/or second data transducers are coupled to pads. | 05-15-2014 |
20150179191 | UNIVERSAL MAGNETIC RECORDING HEAD CHIP - An apparatus according to one embodiment includes a magnetic head having, on one module thereof, an array of N first data transducers positioned towards a media facing surface of the module, and M second data transducers interleaved with the array of first transducers. Only some of the data transducers are coupled to pads. An apparatus according to another embodiment includes a magnetic head having, on one module thereof, an array of data transducers positioned towards a media facing surface of the module, the data transducers including at least one of data readers, data writers, and combinations thereof. A plurality of pads are on the module, but less than all of the first and/or second data transducers are coupled to pads. | 06-25-2015 |
Patent application number | Description | Published |
20100260233 | PHASE TRACKING IN FREQUENCY DOMAIN IN A WIRELESS COMMUNICATION SYSTEM - Techniques for correcting sampling frequency offset (SFO) and carrier frequency offset (CFO) in a wireless communication system are disclosed. An apparatus for correcting SFO and CFO may include a pilot tone extractor for extracting a plurality of pilot tones from one or more first symbols, a demodulator, an error signal generator, a loop filter, an angle generator, and a device for applying a correction phase to one or more symbols subsequent to the one or more first symbols. The demodulator is configured to demodulate the pilot tones. The error signal generator is configured to generate an error signal by summing and calculating the arctangent of the plurality of demodulated pilot tones. The loop filter is configured to generate an estimated phase rotation due to a residual CFO and the angle generator is configured to generate a correction phase for the plurality of tones. | 10-14-2010 |
20140062588 | SYSTEM AND METHOD TO DEMODULATE A LOAD MODULATED SIGNAL - A method includes demodulating a load modulated signal at an initiator device based at least partially on a phase adjusted comparison value corresponding to the load modulated signal. | 03-06-2014 |
20140073241 | METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION - Aspects disclosed herein relate to improving acquisition for NFC load modulation. In one example, a communications device is equipped to monitor at least a complex component of load modulation of a carrier signal, detect, using a NFC technology type specific peak detection scheme, a peak associated with at least the complex component, and determine a presence of a packet beginning pattern based on the detected peak. In an aspect, the packet beginning pattern may be associated with a reception of a packet from a target NFC device. | 03-13-2014 |
20140086292 | SYSTEMS AND METHODS FOR DETECTING DATA COLLISIONS FOR A NEAR FIELD COMMUNICATION SYSTEM - In a wireless near field communication (NFC) system, a target, such as a smart card, can communicate with an initiator, such as a card reader, by load modulating a radio frequency (RF) signal generated by the initiator. When two or more targets load modulate the RF signal generated, “collisions” can occur with the load modulation. Apparatus and methods detect the presence or absence of collisions in a lower layer or physical layer and report the presence of detected collisions to an upper layer for further handling. | 03-27-2014 |
20140098913 | SYSTEM AND METHOD FOR I-Q IMBALANCE CORRECTION - Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF. | 04-10-2014 |
20140321581 | METHODS AND SYSTEMS TO DETECT THE OCCURRENCE OF ERRONEOUS DEMODULATED BITS FOR DECISION FEEDBACK DEMODULATION - Systems and methods to detect the occurrence of erroneous demodulated bits for decision feedback demodulation are disclosed. In one implementation, an apparatus for detecting demodulation bit errors of a plurality of modulated bits includes a memory component configured to store a first threshold and a second threshold. The apparatus further includes a processor coupled to the memory component, the processor configured to retrieve the first threshold and second threshold from the memory component and to determine a demodulation metric value for each of the plurality of modulated bits, the processor further configured to count the number of demodulation metric values that cross the first threshold and compare the second threshold to the number of demodulation metric values that cross the first threshold. | 10-30-2014 |
20150124906 | SYSTEMS AND METHODS FOR IMPROVING COMMUNICATION SENSITIVITY - A method for improving communication sensitivity by a wireless communication device is described. The method includes obtaining a string of bits. The method also includes mapping each bit in the string of bits to a pre-allocated bit pattern to create a series of concatenated pre-allocated bit patterns. The method further includes generating a modulated signal based on the series. The method additionally includes transmitting the modulated signal. | 05-07-2015 |
20150133069 | FM RECEIVER WITH FREQUENCY DEVIATION-DEPENDENT ADAPTIVE CHANNEL FILTER - Methods, systems, and devices are described for wireless communications in a frequency modulation (FM) receiver with a frequency deviation-dependent adaptive channel filter. A maximum frequency deviation of an FM broadcast signal may be estimated. One or more coefficients of a channel filter may be adapted based at least in part on the maximum frequency deviation. The coefficient adaptation may include identifying a set of coefficients corresponding to the maximum frequency deviation and applying the set of coefficients to the channel filter. The set of coefficients may be identified by selecting one of multiple sets of coefficients stored in memory. In some instances, a signal quality metric (e.g., signal-to-noise ratio (SNR)) may be identified and may be used to modify a value of one or more of the set of coefficients applied to the channel filter. | 05-14-2015 |
20150137883 | ADAPTIVE FM DEMODULATOR SUPPORTING MULTIPLE MODES - Methods, systems, and devices are described for an adaptive demodulator that supports multiple modes. An FM signal may be received at a demodulator and parameters corresponding to the FM signal may be identified. Connections between multiple modules within the demodulator may be configured, based at least in part on the parameters, to select one of multiple demodulation modes supported by the demodulator to demodulate the FM signal. The modes may include a phase differencing mode, a phase-locked loop (PLL) mode, a frequency-compressive feedback (FCF) mode, and/or a quadrature detector mode. The parameters may include one or both of a signal strength of the FM signal and a maximum frequency deviation of the FM signal. Based on the parameters, one or more signals may be generated to configure the connections within the demodulator. A switch from one mode to another may occur when one of the parameters breaches a threshold value. | 05-21-2015 |
20150256324 | SYSTEMS AND METHODS FOR TIMING RECOVERY IN NEAR-FIELD COMMUNICATION - A method for inductively-coupled communications is described. The method includes receiving a signal. The method also includes analyzing the signal to estimate a symbol timing error. Estimating the symbol timing error may include comparing a location of a pause, a low-to-high or a high-to-low transition in the received signal with an ideal location of a pause or a transition. The method further includes adjusting symbol timing to correct for the symbol timing error. | 09-10-2015 |
20150303904 | SYSTEMS AND METHODS FOR GAIN AND OFFSET CONTROL - A method for setting an initial gain and an initial offset for an automatic gain and offset controller (AGOC) is described. The method includes determining a gain level at which a signal does not under-saturate or over-saturate an input to an analog-to-digital converter (ADC) by performing a binary search over a fixed set of gain levels while an offset is fixed. The method also includes determining an offset correction to bring an unmodulated carrier level at an output of the ADC to a target level. The method may also include updating the gain and the offset in response to changes in a signal level. | 10-22-2015 |
20150312707 | METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION - Aspects disclosed herein relate to improving acquisition for NFC load modulation. In one example, a communications device is equipped to monitor at least a complex component of load modulation of a carrier signal, detect, using a NFC technology type specific peak detection scheme, a peak associated with at least the complex component, and determine a presence of a packet beginning pattern based on the detected peak. In an aspect, the packet beginning pattern may be associated with a reception of a packet from a target NFC device. | 10-29-2015 |
Patent application number | Description | Published |
20090092052 | METHOD AND APPARATUS FOR FLOODING LINK STATE PACKETS TO ACHIEVE FASTER CONVERGENCE - Disclosed are methods and apparatus for flooding link state packets or packet data units (LSP's) from a first node to one other LSP receiving node, where the LSP's are flooded in an order that is related to relative costs of various paths emanating from the first node. That is, the first node sends its own LSP first since the first node has no cost relative to itself. The first node then sends other LSP's that are associated with a plurality of other LSP sending nodes that have previously flooded their LSP's to the first node. These other LSP's are sent by the first node to the other LSP receiving node in an order related to the relative costs associated with the paths from the first node to each of the other LSP sending nodes which had previously sent the other LSP's to the first node. | 04-09-2009 |
20120102223 | REDIRECTION OF REQUESTS FOR TARGET ADDRESSES - In one embodiment, a first network device may receive a request for an identifier of at least one target to service a client. The first network device may obtain an identifier of each of two or more targets. The first network device may then determine whether to redirect the request. The first network device may redirect the request to a second network device according to a result of the determining step, where the first network device is in a first autonomous system and the second network device is in a second autonomous system. | 04-26-2012 |
20130318222 | SERVICE-AWARE DISTRIBUTED HASH TABLE ROUTING - In one embodiment, a node in a computer network joins a global ring associated with a distributed hash table (DHT), and maintains a DHT routing table and DHT database for the global ring. In addition, the node may determine a particular service class for which the node is configured, and may join a particular service-based sub-ring according to the particular service class, where all nodes of the particular service-based sub-ring are within the global ring. As such, a service-based DHT routing table and service-based DHT database may be maintained for the particular service-based sub-ring, such that DHT operations identified by the particular service class are routed to the particular service-based sub-ring (e.g., by a portal node). | 11-28-2013 |