Patent application number | Description | Published |
20090194591 | System, method and apparatus for placing and updating information in a personal digital electronic device for communication to a bar code scanner - A personal digital electronic device is provided with two enhancements, namely (a) an IR receiver and associated circuitry and software/firmware for mimicking a laser scanner operation, so that information existing in physical form with an associated bar code may be entered into the personal digital electronic device at the point of transaction; and (b) a radio receiver and associated circuitry and software/firmware to receive and process RDS feeds, so that offers, coupons and promotions embedded in the RDS feeds may be detected and used to place or update information on the personal digital electronic device. The personal digital electronic device is enabled for communication with a bar code scanner preferably using the “active light” communication technology. | 08-06-2009 |
20110215162 | Method and Apparatus for Communicating Information From a Mobile Digital Device to a Bar Code Scanner - Techniques are described for facilitating the reliable communication of information to bar code scanners from mobile digital devices, thereby enabling mobile digital devices to easily access the current commercial infrastructure. These techniques may be used to access many other goods and services in addition to conventional commercial services. The core enabling technology is the use of various elements commonly found on mobile digital devices to provide light that simulate a reflection of a scanning beam being moved across a static bar code image, and to confirm completion of the scan. The control system may interpret the light provided by the mobile digital device as merely a conventional identification type bar code, although the control system may be enhanced to identify and receive other types of information, including identity and credit information. | 09-08-2011 |
20120187184 | Method and Apparatus for Communicating Information with a Personal Electronic Device via NFC and Light-Simulated Bar Codes - The techniques described herein facilitate the reliable and widespread communication of information in support of various types of transactions at various types of facilities using personal electronic devices, which are electronic devices that can be easily carried on the person. Personal electronic devices may be enabled to access and communicate information using Near Field Communications (“NFC”), as well as to communicate information to bar code scanners by emitting light that simulates a reflection of a scanning beam being moved across a static visual image of a bar code. Such a personal electronic device may be used for transactions both at the relatively uncommon facilities which have the newer NFC systems as well as the many facilities which have the older bar code scanners, thereby enhancing its value to its user. Moreover, NFC and light-simulated bar codes may be used cooperatively on a personal electronic device to enable a variety of novel and useful methods of communicating information. | 07-26-2012 |
20130207481 | Method and Apparatus for Controlling and Powering an Electronic Accessory from a Mobile Digital Device - Various energy harvesting and control techniques are used to power and control electronic accessories from the audio output channels and microphone input channel of mobile digital devices while preserving audio input and output functionality. One technique uses one of the stereophonic audio channels to generate power, and the other in conjunction with the microphone jack to enable bi-directional communications while preserving audio input and output. Another technique allows a low powered electronic accessory with bi-directional communications to be supported while simultaneously supporting audio input & stereo output. These techniques facilitate the ability to play music, narration and instruction and to receive oral responses and instruction with no perceived loss or gaps, even while using the audio jack of a mobile digital device to harvest energy and bi-directional communication. | 08-15-2013 |
20130218701 | Apparatus, Method and System for Electronic Gifting - Electronic gifting is performed using various devices, servers, and other system nodes on a network. A gifting server and a transaction facility server associated with a transaction facility have access to the network. A donor's personal electronic device and a recipient's personal electronic device also have access to the network. Both the donor personal electronic device and the recipient personal electronic device may be enabled with the light-simulated barcode technology and/or NFC technology. Financial systems such as, for example, credit card systems, banking systems, and loyalty card systems may also have access to the network, or may be directly accessible to the transactions facility systems. | 08-22-2013 |
Patent application number | Description | Published |
20080226001 | ADJACENT CHANNEL INTERFERENCE DETECTION FOR WIRELESS COMMUNICATION - Techniques for detecting adjacent channel interference (ACI) in a wireless communication system are described. Input inphase (I) and quadrature (Q) samples are filtered with a first filter response to obtain filtered I and Q samples. The first filter response is designed to pass signal in an adjacent frequency channel while suppressing signals in a desired frequency channel and non-adjacent frequency channels. Correlations of the filtered I and Q samples are determined. The presence of ACI is detected based on the correlations of the filtered I and Q samples and the power of the input I and Q samples. If ACI is present, then whether the ACI is from a higher frequency channel or a lower frequency channel is determined based on one or more of the correlations. The input I and Q samples are filtered with a second filter response that is adjusted based on the detection of ACI. | 09-18-2008 |
20090003427 | BURSTY INTERFERENCE SUPPRESSION FOR COMMUNICATIONS RECEIVERS - Techniques are provided for suppressing interference by taking into account the possible bursty nature of co-channel interference in a communication system. In an aspect, interference levels are separately computed for first and second data portions of a desired signal. The computed interference levels may be used to scale the corresponding data portions for subsequent processing. | 01-01-2009 |
20090245192 | Reconfigurable Wireless Modem Sub-Circuits To Implement Multiple Air Interface Standards - A flexible and reconfigurable digital system (for example, a wireless modem) includes a set of sub-circuits. Each sub-circuit includes a task manager and an amount of configurable hardware circuitry for performing a type of operation on a data stream. The task manager of a sub-circuit can configure and control the configurable hardware of the sub-circuit. A central processor configures and orchestrates operation of the sub-circuits by maintaining a set of task lists in a tightly coupled memory. Each task list includes task instructions for a corresponding sub-circuit. The task manager of a sub-circuit reads task instructions from its task list and controls its associated hardware circuitry as directed by the instructions. A timestamp task instruction and a push task instruction and the task list architecture allow modem sub-circuits to be easily reconfigured to operate in accordance with either a first air interface standard or a second air interface standard. | 10-01-2009 |
20090245423 | De-Interlever That Simultaneously Generates Multiple Reorder Indices - A de-interleaver involves logic that receives a seed and that simultaneously generates from the seed a plurality of reorder indices. The plurality of reorder indices is usable for de-interleaving an incoming stream of interleaved code bits. Each plurality of simultaneously generated reorder indices generated corresponds to a set of simultaneously received code bits in the incoming stream. The reorder indices are converted into physical addresses in parallel and these physical addresses are used to store the set of code bits into a memory. Code bits for multiple sub-packets of different sub-packet sizes are typically present in memory at the same time. The code bits are then read out of memory to form an outgoing stream of de-interleaved code bits. The de-interleaver has a pipelined architecture such that sets of code bits are written into the memory at the same rate that sets of code bits are received onto the de-interleaver. | 10-01-2009 |
20090245430 | EFFICIENT PARALLEL SUB-PACKET DECODING USING MULTIPLE DECODERS - A configurable decoder within a receiver (for example, within a wireless communication device) includes numerous decoders. In one mode, the multiple decoders are used to decode different sub-packets of a packet. When one decoder completes decoding the last sub-packet assigned to it of the packet, then that decoder generates a packet done indication. A control circuit receives the packet done indications, and when all the decoders have generated packet done indications then the control circuit initiates an action. In one example, the action is the interrupting of a processor. The processor responds by reading status information from the control circuit, thereby resetting the interrupt. End-of-packet markers are usable to generate packet done indications and to generate EOP interrupts. Similarly, end-of-group markers are usable to generate group done indications and to generate EOG interrupts. The decoder block is configurable to process sub-packets of a packet using either one or multiple decoders. | 10-01-2009 |
20110105070 | Direct conversion receiver architecture - A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/analog circuitry, and a serial bus interface (SBI) unit to provide controls for the RF/analog circuitry via a serial bus. The DVGA may be advantageously designed and located as described herein. The operating mode of the VGA loop may be selected based on the operating mode of the DC loop, since these two loops interact with one another. The duration of time the DC loop is operated in an acquisition mode may be selected to be inversely proportional to the DC loop bandwidth in the acquisition mode. The controls for some or all of the RF/analog circuitry may be provided via the serial bus. | 05-05-2011 |
Patent application number | Description | Published |
20110150152 | SYSTEMS AND METHODS PROVIDING FREQUENCY-DOMAIN AUTOMATIC GAIN CONTROL (AGC) - A method for Automatic Gain Control (AGC) in a receiver is performed by a circuit having an inner loop and an outer loop. The method includes performing an outer loop energy detection, mitigating interference using the outer loop energy detection, and performing a frequency domain energy measurement in the inner loop. The method also includes adjusting a digital gain component in the inner loop and an analog gain component in the outer loop in response to the frequency domain energy measurement. | 06-23-2011 |
20130016765 | SELECTION OF WINDOW LENGTH BASED ON MULTIPLE METRICS - Techniques for windowing a transmission are disclosed herein. In one aspect of the disclosure, the length of a window used for windowing may be configurable and determined for a transmission based on a configuration of the transmission. The configuration of the transmission may be determined based on one or more parameters such as a system bandwidth, a bandwidth assigned for the transmission, the location of the assigned bandwidth within the system bandwidth, a modulation type used for the transmission, etc. In another aspect of the disclosure, a preferred length for a window may be determined for each of a number of possible configurations of a transmission. Different possible window lengths may be evaluated for each possible configuration based on one or more performance metrics. For each configuration, a window length that can provide the best performance for that configuration may be selected as a preferred window length for that configuration. | 01-17-2013 |
20130122841 | SEARCHER DETECTION METRICS - Methods and apparatus for determining a reference sequence and timing based on normalized correlations are described. One example method generally includes receiving, at a first antenna of an apparatus, a first signal comprising a reference sequence; receiving, at a second antenna of the apparatus, a second signal comprising the same reference sequence; sampling the first and second signals to form first and second signal sequences; correlating the first and second signal sequences with each of one or more candidate sequences for the reference sequence using normalization; and determining the reference sequence and timing for the first and second signals based on the normalized correlations. | 05-16-2013 |
20130142060 | INSTANTANEOUS NOISE NORMALIZED SEARCHER METRICS - In a wireless communication system employing frequency division duplexing (FDD) that may be synchronous or asynchronous for transmitting data, in which the underlying Rx signals have different statistics, and where the hypothesis testing is degraded thereby, the improvement of generating a complementary searcher metric that is a noise metric (NM) comprising: projecting the Rx signals into the noise subspace of a pilot sequence. | 06-06-2013 |
20130223256 | CONNECTED MODE GAP MEASUREMENT FOR LTE TDD - A method of wireless communication includes selecting three or more reference signal symbols from at least two subframes detected within a measurement window location during a connected mode gap. The selected reference signal symbols are selected from reference signal symbols of at least one non-MBSFN subframe and one reference signal symbol of a special subframe. The method also includes combining the selected reference signal symbols and estimating a reference signal received power (RSRP) based at least in part on a result of the combining. | 08-29-2013 |
20130229955 | FREQUENCY SCAN METHOD FOR DETERMINING THE SYSTEM CENTER FREQUENCY FOR LTE TDD - A method, an apparatus, and a computer program product for wireless communication are provided in which a set of time intervals is obtained from a received radio frequency signal. A power profile is determined for a frequency spectrum segment in each time interval. A first list is used to identify frequency spectrum segments that exhibit a power or energy profile over a range of frequencies associated with a downlink channel bandwidth, and a second list is used to identify frequency spectrum segments that have a total or average energy greater than a threshold energy relative to a noise floor. An absolute radio frequency channel number (ARFCN) of a wireless communication system is determined based on the time intervals identified in the first and second lists. | 09-05-2013 |
20130235769 | METHODS AND APPARATUS FOR ENABLING NON-DESTAGGERED CHANNEL ESTIMATION - Certain aspects of the present disclosure relate to techniques and apparatus for enabling non-destaggered channel estimation. In aspects, a method for wireless communications is provided including determining a first channel impulse response (CIR) based on a first set of received reference signals staggered in time, determining a second CIR based on a second set of received reference signals from the same sub-frame time slot, wherein a reference signal is associated with one of a plurality of virtual transmit antenna ports, and aligning the first CIR and the second CIR based, at least in part, on a time tracking loop (TTL) timing offset. | 09-12-2013 |
20130242766 | PRE-SIB2 CHANNEL ESTIMATION AND SIGNAL PROCESSING IN THE PRESENCE OF MBSFN FOR LTE - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus updates a CIE in guaranteed non-MBSFN subframes. The apparatus refrains from updating at least one of an AGC, a TTL, an FTL, or an SNR estimation (FTL_SNR) in potential MBSFN subframes before a SIB is decoded to ascertain which subframes of a radio frame are MBSFN subframes and non-MBSFN subframes. The MBSFN subframes include a subset of the potential MBSFN subframes. The non-MBSFN subframes include a remaining subset of the potential MBSFN subframes and the guaranteed non-MBSFN subframes. | 09-19-2013 |
20130242820 | DIGITAL FILTER CONTROL FOR FILTER TRACKING SPEEDUP - A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed. | 09-19-2013 |
20130272218 | METHODS AND APPARATUS FOR DETERMINING HOW TO PERFORM OPERATIONS AFTER COMMUNICATION SUSPEND BASED ON INFORMATION BEFORE THE SUSPEND - Certain aspects of the present disclosure relate to methods and apparatus for Channel Quality Indicator (CQI) reporting after resumption of Long Term Evolution (LTE) after a temporary suspension. In certain aspects, in order to minimize performance penalty to LTE on resumption after an LTE tune away for example to service a different Radio Access Technology, information available from before the LTE tune away may be used in addition to one or more additional parameters for determining how to perform LTE CQI calculation/update after tuning back to LTE. In certain aspects, a decision regarding whether a User Equipment (UE) reports a CQI based on channel conditions before the LTE tune away or reports a CQI based on channel conditions after tuning back to LTE may be based on a value of the Doppler estimate, a time duration of the LTE tune away, or a combination thereof. | 10-17-2013 |
20140029483 | METHOD AND APPARATUS FOR TDD VIRTUAL CELL SELECTION - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE may search for one or more cells during each of a number of search periods, select a first cell that has been detected in at least two of the search periods, and determine an LNA gain based on information associated with the first cell. | 01-30-2014 |
20140031037 | CELL SELECTION BASED ON FAVORABLE ULDL CONFIGURATION IN LTE/TDD NETWORKS - Cell selection procedures performed in a wireless network are disclosed that include determining a uplink/downlink (ULDL) preference of a User Equipment (UE) in communication with a first evolved Node B (eNB) having a first ULDL configuration and a second eNB having a second ULDL configuration. The UE compares the first and second ULDL configurations to the ULDL preference. The UE selects the first eNB based on the first ULDL configuration matching the ULDL preference. In alternative aspects, a first eNB having a first ULDL configuration and in communication with a UE receives the ULDL preference of the UE. The first eNB compares the first ULDL configuration and a second ULDL configuration of a second eNB in communication with the UE to the ULDL preference. The first eNB selects the second eNB based on the second ULDL configuration matching the ULDL preference. | 01-30-2014 |
20140270032 | Phase Detection and Correction for Non-Continuous Local Oscillator Generator - Techniques for detecting and correcting phase discontinuity of a local oscillator (LO) signal are disclosed. In one design, a wireless device includes an LO generator and a phase detector. The LO generator generates an LO signal used for frequency conversion and is periodically powered on and off. The phase detector detects the phase of the LO signal when the LO generator is powered on. The detected phase of the LO signal is used to identify phase discontinuity of the LO signal. The wireless device may further include (i) a single-tone generator that generates a single-tone signal used to detect the phase of the LO signal, (ii) a downconverter that downconverts the single-tone signal with the LO signal and provides a downconverted signal used by the phase detector to detect the phase of LO signal, and (iii) phase corrector that corrects phase discontinuity of the LO signal in the analog domain or digital domain. | 09-18-2014 |
20140335863 | USER EQUIPMENT PANIC STATES(S) UNDER CONNECTED MODE DISCONTINUOUS RECEPTION STATE IN LONG TERM EVOLUTION - Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to methods and apparatus that utilize one or more user equipment (UE) panic states under connected discontinuous reception (C-DRX) mode in long term evolution (LTE). | 11-13-2014 |
20150293574 | TECHNIQUES FOR POWER OPTIMIZATION BASED ON NETWORK PARAMETERS - A method for power optimization by an apparatus is disclosed. The method includes identifying one or more network parameters that affect one or more of a processing rate and a power usage of the processor in a connected state. The method also includes identifying a trigger event for the one or more network parameters. The method further includes adjusting a performance of the processor in the connected state when the trigger event occurs. | 10-15-2015 |
Patent application number | Description | Published |
20120194547 | METHOD AND APPARATUS FOR GENERATING A PERSPECTIVE DISPLAY - An approach is provided for generating a perspective display. A display manager receives a request to generate a perspective display of one or more items of a location-based user interface, the request specifying first location information associated with a viewing location. The display manager determines to define a surface with respect to the first location information, wherein the surface is divided into an array of cells receives an input, from the device, for selecting a group of the points of interest on the mapping display and captures an image of the mapping display based on the input. The display manager then processes and/or facilitates a processing of second location information associated with the one or more items to map one or more representations of the one or more items onto one or more of the cells. Finally, the display manager processes and/or facilitates a processing of the first location information to determine at least a portion of the surface to cause, at least in part, rendering of the perspective display. | 08-02-2012 |
20130093787 | METHOD AND APPARATUS FOR GROUPING AND DE-OVERLAPPING ITEMS IN A USER INTERFACE - An approach is provided for grouping and de-overlapping items in a user interface. A display manager determines one or more items for rendering in a user interface. The display manager then causes, at least in part, a determination of one or more rendering locations for one or more representations of the one or more items based, at least in part, on location information associated with the one or more items. The display manager further causes, at least in part, a grouping, a de-overlapping, or a combination thereof of the one or more representations based, at least in part, on an overlapping of the one or more rendering locations. The display manager also causes, at least in part, a rendering of the one or more representations in the user interface based, at least in part, on the grouping, the de-overlapping, or a combination thereof. | 04-18-2013 |
20140028715 | METHOD AND APPARATUS FOR DETECTING OCCLUSION IN AN AUGMENTED REALITY DISPLAY - A method, apparatus and computer program product are provided to display objects in an augmented reality interface. In this regard, the method, apparatus, and computer program product may determine a location of a mobile terminal, receive object meshes for one or more objects in geographic proximity to the mobile terminal, remove, using a processor, one or more polygons from the object meshes, and determine occlusion between the location of the mobile terminal and at least one point of interest. The at least one point of interest may be identified as occluded if a line segment between the location and the at least one point of interest intersects with at least one of the object meshes. The method, apparatus, and computer program product may also include causing the at least one point of interest to not be displayed by an augmented reality interface. | 01-30-2014 |
20150049080 | Method and Apparatus for Rendering Items in a User Interface - An approach is provided for rendering items in a user interface. The approach may, for instance, include: a pre-fetching and a caching of item information associated with one or more items for one or more determined categories based on location information associated with the device; a processing of a detected attitude change associated with the device and of an attitude change threshold to determine an intended orientation mode for the device; a modification of one or more representations, of one or more items, that are within a region, of a user interface, associated with a user interface object; a grouping, a de-overlapping, or a combination thereof of the one or more representations based on an overlapping of one or more rendering locations, of the one or more representations, in a three-dimensional model space. | 02-19-2015 |
20150356763 | METHOD AND APPARATUS FOR GROUPING AND DE-OVERLAPPING ITEMS IN A USER INTERFACE - An approach is provided for grouping and de-overlapping items in a user interface. A display manager determines one or more items for rendering in a user interface. The display manager then causes, at least in part, a determination of one or more rendering locations for one or more representations of the one or more items based, at least in part, on location information associated with the one or more items. The display manager further causes, at least in part, a grouping, a de-overlapping, or a combination thereof of the one or more representations based, at least in part, on an overlapping of the one or more rendering locations. The display manager also causes, at least in part, a rendering of the one or more representations in the user interface based, at least in part, on the grouping, the de-overlapping, or a combination thereof. | 12-10-2015 |