Patents by Inventor Andrei Popescu

Andrei Popescu 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).

  • Publication number: 20240388143
    Abstract: A stator assembly for an electrical machine, including stator teeth which are individually formed and are spaced azimuthally from each other. Each stator tooth includes an azimuthally extending central flange arranged to engage with the central flange of an adjacent stator tooth. The stator assembly includes clamping elements which are arranged between the stator teeth and are arranged to exert a radially inward force on each stator tooth, to hold the stator assembly together.
    Type: Application
    Filed: May 13, 2024
    Publication date: November 21, 2024
    Inventors: Andrei Popescu, Paul Charles Harris, Aaron Christopher Day, Thilak Raj Durairaj
  • Patent number: 9990694
    Abstract: Certain embodiments of this disclosure include methods and devices for outputting a zoom sequence. According to one embodiment, a method is provided. The method may include: (i) determining first location information from first metadata associated with one or more images, wherein the first location information identifies a first location; and (ii) outputting, for display, a first zoom sequence based on the first location information, wherein the first zoom sequence may include a first plurality of mapped images of the first location from a first plurality of zoom levels and the plurality of mapped images are sequentially ordered by a magnitude of the zoom level.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 5, 2018
    Assignee: Google LLC
    Inventors: Thomas Weedon Hume, Mikkel Crone Köser, Tony Ferreira, Jeremy Lyon, Waldemar Ariel Baraldi, Bryan Mawhinney, Christopher James Smith, Lenka Trochtova, Andrei Popescu, David Ingram, Flavio Lerda, Michael Ananin, Vytautas Vaitukaitis, Marc Paulina
  • Patent number: 9825689
    Abstract: A unified device for adjacent and non-adjacent channels/carriers for processing Physical layer Protocol Data Units (PPDUs) includes a dual-use configuration capable of processing either 80+80 Megahertz (MHz) PPDUs with a single spatial stream (160/80+80 MHz 1×1) or 80 MHz PPDUs with two spatial streams (80 MHz 2×2).
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 21, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Andrei Popescu, Fei Tong
  • Publication number: 20170076427
    Abstract: Certain embodiments of this disclosure include methods and devices for outputting a zoom sequence. According to one embodiment, a method is provided. The method may include: (i) determining first location information from first metadata associated with one or more images, wherein the first location information identifies a first location; and (ii) outputting, for display, a first zoom sequence based on the first location information, wherein the first zoom sequence may include a first plurality of mapped images of the first location from a first plurality of zoom levels and the plurality of mapped images are sequentially ordered by a magnitude of the zoom level.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: Thomas Weedon Hume, Mikkel Crone Köser, Tony Ferreira, Jeremy Lyon, Waldemar Ariel Baraldi, Bryan Mawhinney, Christopher James Smith, Lenka Trochtova, Andrei Popescu, David Ingram, Flavio Lerda, Michael Ananin, Vytautas Vaitukaitis, Marc Paulina
  • Patent number: 9508172
    Abstract: Certain embodiments of this disclosure include methods and devices for outputting a zoom sequence. According to one embodiment, a method is provided. The method may include: (i) determining first location information from first metadata associated with one or more images, wherein the first location information identifies a first location; and (ii) outputting, for display, a first zoom sequence based on the first location information, wherein the first zoom sequence may include a first plurality of mapped images of the first location from a first plurality of zoom levels and the plurality of mapped images are sequentially ordered by a magnitude of the zoom level.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 29, 2016
    Assignee: Google Inc.
    Inventors: Thomas Weedon Hume, Mikkel Crone Koser, Tony Ferreira, Jeremy Lyon, Waldemar Ariel Baraldi, Bryan Mawhinney, Christopher James Smith, Lenka Trochtova, Andrei Popescu, David Ingram, Flavio Lerda, Michael Ananin, Vytautas Vaitukaitis, Marc Paulina
  • Publication number: 20160210185
    Abstract: A method for operating a wireless local area network (WLAN) is provided. The method includes transmitting at least one frame from an access point, receiving the at least one frame at a station (STA) located in the WLAN, determining if the received at least one frame includes an error, and, if it is determined that the received at least one frame includes an error, repairing the received at least one frame by restoring fields of the received at least one frame.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 21, 2016
    Inventor: Andrei Popescu
  • Patent number: 9203454
    Abstract: Apparatus to reduce noise in a stereo FM broadcast received via an antenna, the apparatus comprising: a frequency translator configured to translate the received stereo FM broadcast to an intermediate carrier frequency, a demodulation unit configured to demodulate the translated FM signal so as to form left-plus-right and left-minus-right AM signals, a filter configured to form a filtered signal by filtering one of the AM signals, so as to suppress a sub-band of that signal containing unwanted tones, a summing unit for summing the filtered signal and the other of the left-plus-right and left-minus-right signals to produce a stereo audio signal.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 1, 2015
    Assignee: QUALCOMM Technologies International, LTD.
    Inventors: Jacob Sharpe, Andrei Popescu
  • Patent number: 9071870
    Abstract: A system and method for viewing material displayed on an electronic device. When a user desires to view a document, only a portion of which is viewable on a display at a given moment, the portion is displayed on the display as a primary image. A secondary image is then generated, with the secondary image including the portion and additional material of the document not part of the primary image. The secondary image is superimposed over the primary image on the display when a user scrolls through the document such that both the secondary image and the primary image are visible to the user.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: June 30, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Antti Koivisto, Andrei Popescu, Virpi Roto, Guido Grassel, Mikko K. Makela, Roland Geisler
  • Patent number: 8964557
    Abstract: A communication device capable of receiving data from a transmitting device via a communications link, the communication device comprising a buffer and being capable of generating, in dependence on the capacity of the buffer to accommodate data received over the communications link, information for inducing the transmitting device to change its data transmission rate, wherein the information imitates a change in a capability of the communication device to receive data via the communications link.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Fei Tong, Andrei Popescu
  • Publication number: 20150043555
    Abstract: A unified device for adjacent and non-adjacent channels/carriers for processing Physical layer Protocol Data Units (PPDUs) includes a dual-use configuration capable of processing either 80+80 Megahertz (MHz) PPDUs with a single spatial stream (160/80+80 MHz 1×1) or 80 MHz PPDUs with two spatial streams (80 MHz 2×2).
    Type: Application
    Filed: November 22, 2013
    Publication date: February 12, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Andrei POPESCU, Fei TONG
  • Patent number: 8861638
    Abstract: The present application relates to a method for reducing the peak-to-mean amplitude ratio of a transmission signal comprising a plurality of coherent replicated signals, and to a transmitted for transmitting such a signal. The transmission signal is separated into the plurality of coherent replicated signals and one of the plurality of replicated signals is delayed with respect to another of the plurality of replicated signals, either in the time domain by introducing a time delay or in the frequency domain by introducing a phase shift. This has the effect of reducing the coherence of the delayed replicated signal with respect to the other replicated signal, reducing the peak power of the signal and therefore reducing the peak-to-mean amplitude ratio of the transmission signal.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 14, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Andrei Popescu, Chunyang Yu
  • Patent number: 8781007
    Abstract: A quantization method for OFDM is described. In an embodiment, the method uses an objective function which is defined as a function of the quantization error of the OFDM signal in frequency summed over data subcarriers. A search algorithm is used to optimize the objective function and the solution found is quantized by rounding. The quantized value of the solution may then be fed back into the objective function to compute a value of that function and if the value is less than the value computed in a previous iteration of the method, the method is repeated using the quantized value of the solution as the new starting point for the search algorithm. If the value of the function is, however, not less than the value computed in a previous iteration, the new solution is discarded and the quantized value of the solution from the previous iteration is output.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: July 15, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Wei Shi, Andrei Popescu
  • Patent number: 8774857
    Abstract: Receiving a Wi-Fi radio signal using a Bluetooth receiver architecture. Also, adapting a Wi-Fi receiver architecture to constrain a received radio signal to less than the bandwidth of a conveyed Wi-Fi signal for subsequent processing purposes.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: July 8, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: James Digby Yarlet Collier, Andrei Popescu, David Chappaz
  • Patent number: 8725100
    Abstract: Apparatus for reducing FM click noise on a demodulated FM signal, the apparatus comprising, filter means configured to produce a click detection signal according to the demodulated FM signal, click detection means configured to receive the click detection signal and produce a click occurrence signal, and click correction means configured to correct FM clicks on the demodulated FM signal according to the click occurrence signal.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 13, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventor: Andrei Popescu
  • Patent number: 8699590
    Abstract: An efficient method of OFDM peak reduction is described. In an embodiment, a set of the most significant peaks in a symbol of an OFDM signal are identified and then, for each identified peak, a shifted and scaled version of a template cancellation signal is subtracted from the OFDM signal. The template cancellation signal is shifted such that its peak aligns with the identified peak and it is scaled such that it has the opposite phase to the identified peak. No iterative peak search and cancellation is involved in peak reduction, i.e. a cancellation step is not followed by another peak search for the same OFDM symbol. The process is repeated for each symbol in turn and in some embodiments the OFDM signal is up-sampled before it is analyzed to identify the most significant peaks.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Chunyang Yu, Andrei Popescu
  • Patent number: 8699635
    Abstract: A method of WLAN frame detection in a received signal, wherein the frame comprises first and second training sequences and the method comprises auto-correlating the signal with a delayed version of itself to establish a first frame boundary estimate based on behavior of the autocorrelation result due to the inclusion of the first training sequence in the frame, cross-correlating the signal with a copy of the second training sequence at a range of time offsets in order to generate a first cross-correlation profile, classifying the first cross-correlation profile into one of a number of categories, establishing a second frame boundary estimate from the first cross-correlation profile in a manner dependent upon the category assigned to the first cross-correlation profile and determining a refined frame boundary estimate on the basis of a consideration of the first and second frame boundary estimates. Apparatus for performing the method is also described.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: April 15, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Chunyang Yu, Andrei Popescu
  • Patent number: 8654877
    Abstract: This disclosure concerns beam-forming vectors and beam-forming matrices for multiple-input, multiple-output (MIMO) communications systems. These systems, from the method perspective, provide, according to one embodiment, a method of feeding back, to a transmitter from a receiver in a MIMO communications system, at least part of a beam-forming vector of a beam-forming matrix, wherein: the vector relates to a spatial stream of the MIMO system; the vector comprises a series of elements; each element specifies a beam-forming weight for a respective transmit antenna of the transmitter; and the method comprises: calculating a scaling factor that would scale a first element of the vector to a value of one; scaling the other element or elements of the vector with the scaling factor; and feeding back the scaled other element or elements to the transmitter to inform a beam-forming process.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 18, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Fei Tong, Andrei Popescu
  • Patent number: 8649469
    Abstract: A method of receiving a demodulated waveform according to a protocol in which the waveform represents a block of transmitted bits comprising a first group of bits and a second group of bits, the second group of bits being a function of the first group of bits, the method comprising: sampling the demodulated waveform to recover a first group of sample values corresponding to the first group of transmitted bits and a second group of sample values corresponding to the second group of transmitted bits; assigning bit values to reliable sample values of the first group of sample values; generating a set of candidates for a block of bits corresponding to the demodulated waveform, each candidate comprising a first group of candidate bits and a second group of candidate bits, the first group of candidate bits being generated using the assigned bit values and a combination of bit values unique to that candidate in the set of candidates, and the second group of candidate bits being generated by applying the said functio
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 11, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Chunyang Yu, Andrei Popescu
  • Patent number: 8583090
    Abstract: A mobile communication device is adapted to identify a task for postponed transfer to a computing device over a local communication link. A similar transfer task function is established on the computing device for receiving the identified task and any required related data. The user is provided with the ability to initiate a task on the mobile communication device and continue or complete the task on a computer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: November 12, 2013
    Assignee: Nokia Corporation
    Inventors: Elina Vartiainen, Andrei Popescu, Virpi Roto, Guido Grassel, Mika Rautava
  • Publication number: 20130182652
    Abstract: Methods and apparatus are described for a wireless local area network. In order to improve network throughput for networks with a high number of stations and with wide network coverage, stations are divided into groups, with wireless resources for communications between access points and stations divided and allocated on a group-by-group basis. The stations are then able to compete for usage of the resources allocated to their respective group(s).
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Inventors: Fei TONG, Andrei Popescu, Alexander Thoukydides