Patents by Inventor Siddharth
Siddharth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8521195Abstract: Exemplary methods and systems are disclosed herein that may help to dynamically adjust page-transmission power based on the amount of concatenation being applied to a page. An exemplary method involves: (i) before transmission of a page to a mobile station by an access network, the access network identifying any concatenation that is being applied to the page; (ii) based at least in part on the concatenation that is being applied to the page, the access network selecting a page-transmission power for the page; and (iii) the access network transmitting the page to the mobile station at the selected page-transmission power. In an exemplary embodiment, a base station may increase the page-transmission power as the amount of concatenation increases, which may help to improve the paging success rate (PSR) for concatenated pages, among other benefits.Type: GrantFiled: April 7, 2010Date of Patent: August 27, 2013Assignee: Sprint Spectrum L.P.Inventors: Siddharth S. Oroskar, Sachin R. Vargantwar
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Publication number: 20130218840Abstract: A method and system for building a point-in-time snapshot of an eventually-consistent data store. The data store includes key-value pairs stored on a plurality of storage nodes. In one embodiment, the data store is implemented as an Apache® Cassandra database running in the “cloud.” The data store includes a journaling mechanism that stores journals (i.e., inconsistent snapshots) of the data store on each node at various intervals. In Cassandra, these snapshots are sorted string tables that may be copied to a back-up storage location. A cluster of processing nodes may retrieve and resolve the inconsistent snapshots to generate a point-in-time snapshot of the data store corresponding to a lagging consistency point. In addition, the point-in-time snapshot may be updated as any new inconsistent snapshots are generated by the data store such that the lagging consistency point associated with the updated point-in-time snapshot is more recent.Type: ApplicationFiled: February 17, 2012Publication date: August 22, 2013Inventors: Charles SMITH, Jeffrey Magnusson, Siddharth Anand
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Patent number: 8515441Abstract: A radio access network (RAN) may assign a wireless channel from a wireless coverage area to a wireless communication device (WCD) by transmitting a channel assignment message to the WCD. In situations where transmitting the channel assignment message is likely to cause the channel assignment message to be lost or damaged, the RAN may delay transmission of the channel assignment message or refrain from transmitting the channel assignment message. For example, if the WCD is receiving signals from the RAN with a poor signal strength, the RAN may wait until the WCD has had an opportunity to improve its coverage before transmitting the channel assignment message.Type: GrantFiled: March 29, 2011Date of Patent: August 20, 2013Assignee: Sprint Spectrum L.P.Inventor: Siddharth S. Oroskar
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Patent number: 8516391Abstract: A two-dimensional canvas onto which heterogenic objects of various types may be arranged side-by-side. Each type of object has an associated set of control(s), the control(s) at least partially differing from one type to the next. The two-dimensional canvas is fixed in one dimension, but extensible in a second dimension. The canvas may be displayed in miniaturized for with a view box superimposed upon the canvas. As the view box is moved over the miniaturized canvas, the enlarged editable portion of the corresponding canvas is displayed in an edit view. The canvas may also display clusters of objects that are arranged in dashboards. In that case, the display might include a dashboard review area that allows a user to select the appropriate dashboard to display.Type: GrantFiled: March 9, 2012Date of Patent: August 20, 2013Assignee: Microsoft CorporationInventors: Stephen Michael Danton, Florian Voss, Siddharth Jayadevan
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Publication number: 20130207328Abstract: Flexure bearing systems and configurations guide translational motion along a single-axis in micro and macro applications such as micro-electro-mechanical system (MEMS) devices including sensors and actuators like electrostatic comb-drive actuators. The flexure bearing systems and configurations described herein provide an improved constraint against movement (i.e., stiffness) of the primary mover in non-motion axes such as a bearing axis.Type: ApplicationFiled: August 15, 2012Publication date: August 15, 2013Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Shorya Awtar, Siddharth Sood, Mohammad Olfatnia
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Publication number: 20130207075Abstract: A nanowire comprises a polar semiconductor material that is compositionally graded along the nanowire from a first end to a second end to define a polarization doping profile along the nanowire from the first end to the second end. The polar semiconductor material may comprise a group IH-nitride semiconductor, such as an alloy of GaN and AlN, or an alloy of GaN and InN. Such nanowires may be formed by nucleating the first ends on a substrate, growing the nanowires by depositing polar semiconductor material on the nucleated first ends on a selected growth face, and compositionally grading the nanowires during growth to impart the polarization doping. The direction of the compositional grading may be reversed during the growing of the nanowires to reverse the type of the imparted polarization doping. In some embodiments, the reversing forms n/p or p/n junctions in the nanowires.Type: ApplicationFiled: August 25, 2011Publication date: August 15, 2013Applicant: THE OHIO STATE UNIVERSITYInventors: Roberto C. Myers, Siddharth Rajan
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Publication number: 20130208241Abstract: In exemplary implementations, this invention comprises apparatus for retinal self-imaging. Visual stimuli help the user self-align his eye with a camera. Bi-ocular coupling induces the test eye to rotate into different positions. As the test eye rotates, a video is captured of different areas of the retina. Computational photography methods process this video into a mosaiced image of a large area of the retina. An LED is pressed against the skin near the eye, to provide indirect, diffuse illumination of the retina. The camera has a wide field of view, and can image part of the retina even when the eye is off-axis (when the eye's pupillary axis and camera's optical axis are not aligned). Alternately, the retina is illuminated directly through the pupil, and different parts of a large lens are used to image different parts of the retina. Alternately, a plenoptic camera is used for retinal imaging.Type: ApplicationFiled: February 13, 2013Publication date: August 15, 2013Inventors: Matthew Everett Lawson, Jason Boggess, Siddharth Khullar, Ramesh Raskar
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Publication number: 20130208625Abstract: According to one aspect, a Fibre Channel (FC) switch that is currently serving as a Principal Switch among a plurality of FC switches in a FC Fabric sends an Exchange Fabric Parameters (EFP) frame having an empty domain identifier list to neighboring FC switches during a first portion a Principal Switch Selection phase. During a second portion of the Principal Switch Selection phase that is after the first portion, the first Fibre Channel switch sends to neighboring FC switches an EFP frame having a non-empty domain identifier list to indicate to the neighboring FC switches that the first FC switch is to remain serving as the Principal Switch in the FC Fabric.Type: ApplicationFiled: February 15, 2012Publication date: August 15, 2013Applicant: CISCO TECHNOLOGY, INC.Inventors: Christian Sasso, Siddharth Kasat, Ankur Goyal, Amitkumar Patel, Kishan Kumar Kotari Uppunda
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Patent number: 8507877Abstract: Methods and systems are described using a non-linear optical system comprising a laser and a light delivery system comprising a single mode fiber, a mode converter, and a high order mode fiber, wherein the light delivery system that receives light from the source and provides a structured free-space beam having an embedded Gaussian beam. The light delivery system functions to illuminate a region of a sample and generate a non-linear response in a spatial region smaller than that associated with a Gaussian beam having a width comparable to the width of the embedded Gaussian beam. In another aspect, the light delivery system illuminates a region of a sample and generates a non-linear emission of radiation, is depicted. A further aspect of this embodiment includes an imaging assembly for detecting the non-linear emission and using a signal derived from the detected emission to generate a microscopic image of the sample.Type: GrantFiled: November 24, 2010Date of Patent: August 13, 2013Assignee: OFS Fitel, LLCInventors: Jeffrey W. Nicholson, Siddharth Ramachandran
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Patent number: 8509147Abstract: In a communication system, a first base station wirelessly transmits a first base station access code. A second base station wirelessly transmits a second base station access code. A wireless communication device wirelessly receives the first base station access code and the second base station access code and processes the first base station access code and the second base station access code to generate a common access code. The wireless communication device wirelessly transmits the common access code. The first base station wirelessly receives the common access code and processes the common access code to initiate the registration of the wireless communication device with the first base station. The second base station wirelessly receives the common access code and processes the common access code to initiate the registration of the wireless communication device with the second base station.Type: GrantFiled: February 27, 2009Date of Patent: August 13, 2013Assignee: Sprint Communications Company L.P.Inventors: Debasish Sarkar, Siddharth S. Oroskar, Sachin R. Vargantwar, Manoj Shetty, Deveshkumar Narendrapratap Rai
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Patent number: 8509792Abstract: A mobile station receives at least one frequency listing that identifies M downlink frequencies that may be used to receive communications from a wireless telecommunications network and N uplink frequencies that may be used to transmit communications to the wireless telecommunications network (M and N are integers greater than one). The mobile station selects a downlink frequency from among the M downlink frequencies and selects an uplink frequency from among the N uplink frequencies, independently of the downlink frequency. To make these selections, the mobile station may use a downlink hashing algorithm to map an identifier of the mobile station (such as MDN, MIN, IMSI, or ESN) to one of the M downlink frequencies and an uplink hashing algorithm to map the identifier to one of the N uplink frequencies.Type: GrantFiled: July 17, 2009Date of Patent: August 13, 2013Assignee: Sprint Spectrum L.P.Inventors: Siddharth S. Oroskar, Sachin R. Vargantwar, Matthew S. Telep, Robert D. Carter
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Patent number: 8509145Abstract: A first serving system controls a first group of sectors that transmit pilot signals having pseudonoise (PN) offsets corresponding to a first PN increment, and a second serving system controls a second group of sectors that transmit pilot signals having PN offsets corresponding to a second PN increment. The first serving system serves a mobile station via a sector in the first group and determines that the mobile station is likely to be in a communication range of at least one sector in the second group. In response, the first serving system instructs the mobile station to use the second PN increment when scanning for pilot signals. Thereafter, the mobile station may use the first PN increment to scan for pilot signals to add to its remaining set and, if the remaining set is not large enough, may then use the second PN increment to scan for additional pilot signals.Type: GrantFiled: December 20, 2007Date of Patent: August 13, 2013Assignee: Sprint Spectrum L.P.Inventors: Siddharth S. Oroskar, Manoj Shetty, Sachin R. Vargantwar, Anoop Goyal, Kamal Doshi
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Patent number: 8503308Abstract: A page routing system comprises a communication transceiver and a processing system, wherein a wireless communication network comprises a plurality of paging zones and each of the paging zones comprises a plurality of sectors. The communication transceiver is configured to transmit pages to the paging zones for delivery to wireless communication devices located in the sectors and to receive page responses from the paging zones that were transferred by the wireless communication devices located in the sectors.Type: GrantFiled: October 29, 2010Date of Patent: August 6, 2013Assignee: Sprint Communications Company L.P.Inventors: Siddharth S. Oroskar, Sachin R. Vargantwar
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Patent number: 8504933Abstract: A computer application program can comprise multiple overlapping states associated with functionality or components of the application program. Simultaneous output of all such states can be impractical. Representative states can be defined in terms of the statuses of individual states relevant to a particular representative state. Additionally, representative states can be ranked, where multiple representative states that share the same ranking can overlap with each other, but not with other representative states. To avoid transitioning between states too quickly, and presenting output for too short a time, hysteresis mechanisms can be applied in the form of a set delay, a reset delay or a combination thereof. The duration of the set and reset delay can be established independently of each other and independently for each state. The output can be in accordance with the representative state associated with the current statuses of individual states, accounting for selected hysteresis mechanisms.Type: GrantFiled: May 28, 2010Date of Patent: August 6, 2013Assignee: Microsoft CorporationInventors: Siddharth Mantri, Charles Robert Stoner, Roger Allen Lueder
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Publication number: 20130176992Abstract: Apparatus and methods are described herein for applying precoding information updates at a user equipment (UE). The UE receives precoder information from a network component. The UE can them transmit packet data over a transmit time interval (TTI) of tow or more slots using transmit diversity. The UE updates the precoder for transmit diversity with the precoder information in a slot subsequent to the first slot in the TTI. The precoder information is applied to update the precoder at a slot boundary within the TTI.Type: ApplicationFiled: June 27, 2012Publication date: July 11, 2013Applicant: QUALCOMM IncorporatedInventors: Arjun Bharadwaj, Sharad Deepak Sambhwani, Siddharth Mohan
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Patent number: 8483699Abstract: A radio access network (RAN) device may receive a call setup request from a wireless communication device (WCD) seeking to set up a call. In response to receiving the call setup request, it may be determined that (i) the WCD is capable of conducting the call using either a first codec or a second codec, (ii) the first codec is capable of using a sampling rate of over 8,000 Hz, and (iii) the second codec uses sampling rates of 8,000 Hz or less. Based at least on this determination, the WCD may be instructed to set up the call using the second codec.Type: GrantFiled: August 29, 2012Date of Patent: July 9, 2013Assignee: Sprint Spectrum L.P.Inventor: Siddharth S. Oroskar
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Patent number: 8484226Abstract: Collaborative-filtering software creates a neighborhood using a map-reduce architecture by pair-wise application of a similarity measure to a sparse matrix of users and items of media designated by the users. The collaborative-filtering software then generates recommendations for a particular user by rating items of media designated by other users in the neighborhood (but not the particular user). The collaborative-filtering software rates the item of media, using a weighted vote of the users in the neighborhood. The weighted vote depends at least in part on the mean similarity of the users in the neighborhood who have designated the item of media. Then the collaborative-filtering software records the item of media as a recommendation for subsequent presentation to the other user, if the rating of the item of media is among the highest in comparison to the ratings of other items of media designated by users in the neighborhood.Type: GrantFiled: July 9, 2011Date of Patent: July 9, 2013Assignee: Yahoo! Inc.Inventors: Kellan Elliott-McCrea, Winter Mason, Siddharth Suri, Jake Hofman
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Patent number: 8483618Abstract: Disclosed herein are methods and systems that may help a radio access network to more intelligently determine an initial transmit power to use for forward-link communications with a mobile station. An exemplary method involves a radio access network: (a) receiving a page response message, wherein the page response message indicates that a page to a mobile station operating in a radio access network has been received by the mobile station; (b) responsive to receiving the page response message, determining an attempt count for the mobile station, wherein the attempt count indicates how many attempts to page the mobile station have been made; (c) using the attempt count as a basis for determining an initial transmit power for forward-link communications with the mobile station; and (d) initiating forward-link communications with the mobile station at the determined initial transmit power.Type: GrantFiled: September 10, 2010Date of Patent: July 9, 2013Assignee: Sprint Spectrum L.P.Inventors: Sachin R Vargantwar, Siddharth S Oroskar
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Patent number: 8478134Abstract: An arrangement for providing pulse compression at the output of an optical continuum source (advantageously used in spectral slicing applications) includes a section of higher-order mode (HOM) fiber configured to exhibit a predetermined dispersion in at least a portion of the predetermined wavelength range and an effective area greater than 40 ?m2, the dispersion of the HOM fiber selected to compensate for the dispersion introduced by the optical continuum source. The HOM fiber generates a compressed pulse output therefrom. An input mode converter is used to convert the created continuum from the fundamental mode associated with the conventional continuum sources to the higher-order mode(s) supported by the HOM fiber used to perform pulse compression. A bandpass filter is used to limit the bandwidth of the continuum signal to that associated with both the efficient conversion range of the mode converter and desired dispersion characteristic of the HOM fiber.Type: GrantFiled: August 31, 2009Date of Patent: July 2, 2013Assignee: OFS Fitel, LLCInventors: Jeffrey W. Nicholson, Siddharth Ramachandran
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Patent number: 8477246Abstract: Methods, systems, products and devices are implemented for editing video image frames. According to one such method, image content is embedded into video. A selection input is received for a candidate location in a video frame of the video. The candidate location is traced in subsequent video frames of the video by approximating three-dimensional camera motion between two frames using a model that compensates for camera rotations, camera translations and zooming, and by optimizing the approximation using statistical modeling of three-dimensional camera motion between video frames. Image content is embedded in the candidate location in the subsequent video frames of the video based upon the tracking thereof.Type: GrantFiled: July 9, 2009Date of Patent: July 2, 2013Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Ashutosh Saxena, Siddharth Batra, Andrew Y. Ng