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Gupta, San Diego
Abheek Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090033400 | VOLTAGE TOLERANT FLOATING N-WELL CIRCUIT - Methods and apparatuses are presented for voltage tolerant floating N-well circuits. An apparatus for mitigating leakage currents caused by input voltages is presented which includes a first transistor having a source coupled to a positive voltage supply, and a drain coupled to a floating node. The apparatus may further include a controllable pull-down path coupled to a negative voltage supply and the first transistor, wherein the controllable pull-down path is configured to turn on the first transistor and pull-up the floating node during a first state. The apparatus may further include a second transistor having a source coupled to a gate of the first transistor, and drain coupled to the floating node, wherein the second transistor is configured to place the floating node at a floating potential during a second state. | 02-05-2009 |
Alok Kumar Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080291817 | TIMING ESTIMATION IN AN OFDM RECEIVER - A timing estimation system and methodology are provided. In particular, a first pilot is employed in conjunction with three acquisition stages. In the first stage, an attempt is made to observe the leading edge of the correlation curve associated with the first pilot symbol. In the second stage, a determination is made to confirm a leading edge was detected in the first stage by attempting to observe a trailing edge of the correlation curve. Furthermore, during this second stage, a frequency loop is updated to account for frequency offset. The third stage is for observing the trailing edge of the curve if it was not already observed in stage two. Upon detection of receipt of the first pilot, a second pilot can subsequently be employed to acquire fine symbol timing. | 11-27-2008 |
Kirti Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090023448 | METHOD AND APPARATUS FOR INTER-SYSTEM HANDOVER - An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies. | 01-22-2009 |
| 20090055899 | METHOD AND APPARATUS FOR OPTIMIZATION OF SIGCOMP UDVM PERFORMANCE - A mobile communication system that utilizes multiple access technologies achieves multiple session registrations by deriving a plurality of extended unique device identifications from a specific unique device identification (e.g., private user identification (PIID) stored on a subscriber identity module (SIM)) assigned to a user equipment. Each of the plurality of extended unique device identifications have the benefit of allowing multiple registrations with one or more access networks while allowing a home subscriber system to detect the one unique device identification embedded in the extended unique device identifications for authentication purposes. Thereby, a large population of deployed UEs and access network infrastructure may benefit without replacement by allowing a UE to maintain session continuity when transitioning between access networks, to select a preferred access technology when in overlapping coverage areas without session interruption, or to maintain multiple sessions (e.g., simultaneous Voice over IP (VoIP) and media streaming) with different access networks. | 02-26-2009 |
| 20100087186 | HANDLING FAILURE SCENARIOS FOR VOICE CALL CONTINUITY - Receipt of a failure response message in response to a domain transfer attempt is cached at a mobile device. The mobile device retains information related to the domain to indicate that the domain does not support anchoring and, thus, does not support voice call continuity. The mobile device might not attempt domain transfer for subsequent calls in the same area. In an aspect, after expiration of a configurable interval, the mobile device can re-attempt domain transfer to determine if anchoring is now supported by the domain. If the domain now supports anchoring, the identification of the domain can be removed from the domain listing. | 04-08-2010 |
| 20100169496 | Method and Apparatus for Optimization of SIGCOMP UDVM Performance - A mobile communication system that utilizes multiple access technologies achieves multiple session registrations by deriving a plurality of extended unique device identifications from a specific unique device identification (e.g., private user identification (PIID) stored on a subscriber identity module (SIM)) assigned to a user equipment. Each of the plurality of extended unique device identifications have the benefit of allowing multiple registrations with one or more access networks while allowing a home subscriber system to detect the one unique device identification embedded in the extended unique device identifications for authentication purposes. Thereby, a large population of deployed UEs and access network infrastructure may benefit without replacement by allowing a UE to maintain session continuity when transitioning between access networks, to select a preferred access technology when in overlapping coverage areas without session interruption, or to maintain multiple sessions (e.g., simultaneous Voice over IP (VoIP) and media streaming) with different access networks. | 07-01-2010 |
Rajesh Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090204964 | Distributed trusted virtualization platform - A platform architecture shifts the networked computing paradigm from PC+Network to a system using trusted mobile internet end-point (MIEP) devices and cooperative agents hosted on a trusted server. The MIEP device can participate in data flows, arbitrate authentication, and/or participate in implementing security mechanisms, all within the context of assured end-to-end security. The MIEP architecture improves platform-level capabilities by suitably (and even dynamically) partitioning what is done at the MIEP nodes, the network, and the server based infrastructure for delivering services. | 08-13-2009 |
Rashim Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090307619 | WIRELESS COMMUNICATION DEVICE HAVING DETERMINISTIC CONTROL OF FOREGROUND ACCESS OF THE USER INTERFACE - A wireless communication device that has one or more applications resident on a computer platform, a wireless communication interface, a display, and a user interface that, at least, appears on the display and through which a user of the wireless communication device interacts with the computer platform. The display is configured to be selectively controlled by the specific user interfaces of one or more applications resident on the computer platform, and the one or more applications and/or an arbiter that is resident on the computer platform will determine which user interface of the one or more applications resident on the computer platform controls the display based upon a predetermined criteria when the user interfaces compete for control of the display. | 12-10-2009 |
| 20090313252 | DATABASE ARCHITECTURE FOR SUPPORTING GROUP COMMUNICATIONS AMONG WIRELESS COMMUNICATION DEVICES - A system and method for continually updating a large and substantially continually changing dataset that is accessed by multiple application threads, such as a group identity database of members in communication groups of wireless communication devices. A first server holds the group identity database and, as application threads on the first server access the database to set up group communications, a second server sends new group identity data to update the database, with the new data arriving as discrete, ordered blocks. A first server-resident data-index table is updated with the ordering information of the new data blocks, and a first server-resident checkpointing thread places the ordering information of the new data blocks into a checkpoint cache and checkpoints the ordering information as the new data blocks are updated into the group identity database and verifies the ordering (or version) of the data as against the data-index table. | 12-17-2009 |
Ruchika Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090215690 | Compositions and Methods for Inhibiting Cell Migration - The finding that Dickkopf1 (Dkk1) is a dual function protein demonstrates a mechanism for the coordination of cell migration and antagonism of Wnt/β-catenin signaling during developmental and pathological processes. The profile of Dkk proteins expressed by human breast cancers correlates with indicators of outcome: Dkk1 associates with markers of poor prognosis whereas expression of single function Dkk2 or Dkk3 (which inhibit Wnt/β-catenin signaling and promote migration, respectively) correlates with phenotypes reflective of good prognosis. Therefore, the pro-migratory activities of Dkk1 and 3 identified here offer new insights into breast cancer progression and a potential avenue for therapeutic intervention. | 08-27-2009 |
| 20110039335 | Compositions and Methods for Inhibiting Cell Migration - The finding that Dickkopf1 (Dkk1) is a dual function protein demonstrates a mechanism for the coordination of cell migration and antagonism of Wnt/β-catenin signaling during developmental and pathological processes. The profile of Dkk proteins expressed by human breast cancers correlates with indicators of outcome: Dkk1 associates with markers of poor prognosis whereas expression of single function Dkk2 or Dkk3 (which inhibit Wnt/β-catenin signaling and promote migration, respectively) correlates with phenotypes reflective of good prognosis. Therefore, the pro-migratory activities of Dkk1 and 3 identified here offer new insights into breast cancer progression and a potential avenue for therapeutic intervention. | 02-17-2011 |
Samir Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090190774 | ENHANCED BLIND SOURCE SEPARATION ALGORITHM FOR HIGHLY CORRELATED MIXTURES - An enhanced blind source separation technique is provided to improve separation of highly correlated signal mixtures. A beamforming algorithm is used to precondition correlated first and second input signals in order to avoid indeterminacy problems typically associated with blind source separation. The beamforming algorithm may apply spatial filters to the first signal and second signal in order to amplify signals from a first direction while attenuating signals from other directions. Such directionality may serve to amplify a desired speech signal in the first signal and attenuate the desired speech signal from the second signal. Blind source separation is then performed on the beamformer output signals to separate the desired speech signal and the ambient noise and reconstruct an estimate of the desired speech signal. To enhance the operation of the beamformer and/or blind source separation, calibration may be performed at one or more stages. | 07-30-2009 |
Samir K. Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090070119 | POWER EFFICIENT BATCH-FRAME AUDIO DECODING APPARATUS, SYSTEM AND METHOD - Power savings in a mobile device is accomplished by generating audio samples by decoding a bitstream with a decoding system within the mobile device. The generated audio samples are transferred into at least one memory bank in a set of memory banks in a power saver block within the mobile device. Parts of the decoding system not involved in the storing of the generated audio samples are switched off after batch decoding a bitstream associated with multiple audio frames. The bitstream includes bits less than that found in one audio file. At least one of the memory banks in the set of memory banks is power collapsible. The fetching of the decoded by the decoding system can be synchronized with a paging channel of a modem in the mobile device. The transferred audio samples is a lossless compression and may occur after a re-encoding. | 03-12-2009 |
| 20100017196 | METHOD, SYSTEM, AND APPARATUS FOR COMPRESSION OR DECOMPRESSION OF DIGITAL SIGNALS - Embodiments of methods, apparatuses, devices and systems associated with compression and decompression of digital signals are disclosed. | 01-21-2010 |
| 20100190532 | DYNAMICALLY PROVISIONING A DEVICE WITH AUDIO PROCESSING CAPABILITY - An executable is downloaded to an audio output device over a communications link. The executable may configure the audio output device to decode audio encoded in a specified format. The executable may also or alternatively include other audio processing software. The audio may include voice and/or audio playback, e.g., music playback. The ability to download an audio executable allows dynamic provisioning of various decoding and/or audio process capabilities to an audio output device. This may eliminate the need to transcode digitized audio for playback at the audio output device, and may also allow the audio output device to decode multiple audio formats without having multiple audio decoders permanently residing within the audio output device. | 07-29-2010 |
Shiv C. Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100239430 | COOLABLE AIRFOIL ATTACHMENT SECTION - A rotor blade suitable for use in a gas turbine engine includes an attachment section which defines at least one internal cooling passage along a passage axis through the attachment section. | 09-23-2010 |
| 20100278632 | Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes - A gas turbine engine includes a radial compressor having first and second blades. The first blade has a tuned leading edge that prevents either blade from exciting at a natural frequency at speeds within an expected operating speed range. | 11-04-2010 |
| 20100278633 | Radial compressor with blades decoupled and tuned at anti-nodes - A gas turbine engine includes a radial compressor with first and second blades. The first and second blades have tuned leading edges that prevent natural frequencies from exciting at speeds within an expected operating speed range. | 11-04-2010 |
| 20100313669 | METHOD OF DETERMINING OVERSPEED RELIABILITY - A method and system for determining the reliability of a rotating component compares a normalized stress curve with a normalized strength curve. The resulting overlap corresponds with the reliability of the rotating component. | 12-16-2010 |
Swati Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110097751 | GLP-1 RECEPTOR AGONIST BIOASSAYS - Provided herein are cell-based bioassays for measuring GLP-I receptor agonist activity of test compounds, such as GLP-I receptor agonist compounds. Exemplary GLP-I receptor agonist compounds include exendins, exendin analogs, GLP-1(7-37), and GLP-1(7-37) analogs. The bioassays are useful for quantitatively determining cAMP generated in samples containing GLP-I receptor agonist compounds (e.g., exenatide) and 6-23 (clone 6) cells having GLP-I receptors, whereby the amount of cAMP generated can be correlated to the GLP-I receptor agonist activity of the GLP-I receptor agonist compounds (e.g., exenatide). Suitable cell-based bioassays include enzyme-linked immunosorbent assays and homogeneous time-resolved fluorescence assays. | 04-28-2011 |
Vikram Gupta, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090034610 | Video rate adaptation to reverse link conditions - The disclosure relates to video rate adaptation techniques that may use information from a medium access control (MAC) layer and radio link protocol (RLP) layer. The techniques may greatly reduce video delay by adjusting video encoding rate. For real-time video telephony (VT) applications, these techniques may provide graceful quality degradation and improve user experience, especially when the channel conditions degrade. | 02-05-2009 |
| 20090279482 | TECHNIQUES FOR ENHANCED BACKHAUL FLOW CONTROL - Techniques for enhanced backhaul flow control are provided. In an exemplary embodiment, a backhaul control system is described that comprises a base station controller (BSC), a backhaul network, and a base transceiver station (BTS). Each is responsive to data and messaging transmitted and received. In one aspect, the BTS includes a queue and a controller. The amount of data in a queue is adjusted by a controller based upon calculating a target queue size value. The controller non-uniformly adjusts the amount of data in a queue based upon a target queue size value which is based upon communication system parameters. The target queue size and amount of data in a queue is adjusted so as to reduce buffer underrun, decrease system latency, and increase communication system throughput. | 11-12-2009 |
| 20100074180 | SYNCHRONIZING A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference. | 03-25-2010 |