Patents by Inventor Michael O. Polley

Michael O. Polley 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: 20220012903
    Abstract: A method includes obtaining, using at least one processor, an input image frame. The method also includes identifying, using the at least one processor, one or more regions of the input image frame containing redundant information. In addition, the method includes performing, using the at least one processor, an image processing task using the input image frame. The image processing task is guided based on the one or more identified regions of the input image frame. The method may further include obtaining, using the at least one processor, a coarse depth map associated with the input image frame. Performing the image processing task may include refining the coarse depth map to produce a refined depth map, where the refining of the coarse depth map is guided based on the one or more identified regions of the input image frame.
    Type: Application
    Filed: July 13, 2020
    Publication date: January 13, 2022
    Inventors: Kushal K. Vyas, Yingmao Li, Chenchi Luo, George Q. Chen, Hamid R. Sheikh, Youngjun Yoo, Michael O. Polley
  • Publication number: 20210281813
    Abstract: A method includes obtaining, using at least one processor, first and second input image frames, where the first and second input image frames are associated with first and second image planes, respectively. The method also includes obtaining, using the at least one processor, a depth map associated with the first input image frame. The method further includes producing another version of the depth map by performing one or more times: (a) projecting, using the at least one processor, the first input image frame to the second image plane in order to produce a projected image frame using (i) the depth map and (ii) information identifying a conversion from the first image plane to the second image plane and (b) adjusting, using the at least one processor, at least one of the depth map and the information identifying the conversion from the first image plane to the second image plane.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 9, 2021
    Inventors: Kushal K. Vyas, Yingmao Li, Chenchi Luo, George Q. Chen, Hamid R. Sheikh, Youngjun Yoo, Michael O. Polley
  • Patent number: 10936057
    Abstract: A method for eye tracking in a head-mountable device (HMD) includes determining at least one object within a three-dimensional (3D) extended reality (XR) environment as an eye tracking calibration point and determining a 3D location of the eye tracking calibration point within the XR environment. The method also includes detecting a gaze point of a user of the HMD and comparing the detected gaze point to an area of the XR environment that includes the 3D location of the eye tracking calibration point. The method further includes, in response to determining that the user is looking at the eye tracking calibration point based on the detected gaze point being within the area, calibrating, using a processor, the HMD to correct a difference between the eye tracking calibration point and the detected gaze point.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: March 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Injoon Hong, Sourabh Ravindran, Youngjun Yoo, Michael O. Polley
  • Publication number: 20200326774
    Abstract: A method for eye tracking in a head-mountable device (HMD) includes determining at least one object within a three-dimensional (3D) extended reality (XR) environment as an eye tracking calibration point and determining a 3D location of the eye tracking calibration point within the XR environment. The method also includes detecting a gaze point of a user of the HMD and comparing the detected gaze point to an area of the XR environment that includes the 3D location of the eye tracking calibration point. The method further includes, in response to determining that the user is looking at the eye tracking calibration point based on the detected gaze point being within the area, calibrating, using a processor, the HMD to correct a difference between the eye tracking calibration point and the detected gaze point.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 15, 2020
    Inventors: Injoon Hong, Sourabh Ravindran, Youngjun Yoo, Michael O. Polley
  • Publication number: 20200186710
    Abstract: A method includes, in a first mode, positioning first and second tiltable image sensor modules of an image sensor array of an electronic device so that a first optical axis of the first tiltable image sensor module and a second optical axis of the second tiltable image sensor module are substantially perpendicular to a surface of the electronic device, and the first and second tiltable image sensor modules are within a thickness profile of the electronic device. The method also includes, in a second mode, tilting the first and second tiltable image sensor modules so that the first optical axis of the first tiltable image sensor module and the second optical axis of the second tiltable image sensor module are not perpendicular to the surface of the electronic device, and at least part of the first and second tiltable image sensor modules are no longer within the thickness profile of the electronic device.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Hamid R. Sheikh, Youngjun Yoo, Seok-Jun Lee, Michael O. Polley
  • Patent number: 10554890
    Abstract: A method includes capturing multiple pairs of images of a scene at different exposures using at least one camera of an electronic device. Each pair of images includes (i) an ambient image of the scene captured without using a flash of the electronic device and (ii) a flash image of the scene captured using the flash of the electronic device. The method also includes rendering a final image of the scene with a bokeh that is determined using the multiple pairs of images. One of the ambient images or the flash images are captured in order of increasing exposure time, and the other of the ambient images or the flash images are captured in order of decreasing exposure time. The method may also include estimating a depth map associated with the scene using the pairs of images, where the bokeh is based on the depth map.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: February 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Long N. Le, John W. Glotzbach, Hamid R. Sheikh, Michael O. Polley
  • Patent number: 8040986
    Abstract: A system comprises a wireless device that communicates across a spectrum having a plurality of sub-channels. The wireless device comprises a plurality of antennas through which the wireless device communicates with another wireless device, wherein each antenna communicates with the other wireless device via an associated communication pathway. The wireless device further comprises sub-channel power analysis logic coupled to the antennas and adapted to determine which communication pathway has the highest communication quality on a sub-channel by sub-channel basis. The wireless device still further comprises diversity selection logic coupled to the sub-channel power analysis logic and adapted to determine a weighting vector for an associated antenna based on the communication quality, wherein the weighting vector specifies a relative transmission power for each sub-channel for the associated antenna.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: October 18, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Michael O. Polley, Donald P. Shaver, Srinath Hosur, Eko Onggosanusi, Muhammad Z. Ikram, Anand Dabak
  • Patent number: 7522674
    Abstract: A device and a method of characterizing a communications channel. The method includes transmitting a first part of a packet preamble using two or more antennas and transmitting a second part of the packet preamble using the two or more antennas. Each antenna transmits an orthogonal encoding of the second part of the packet preamble. The method also includes transmitting a packet header using the two or more antennas and transmitting a packet payload using the two or more antennas. Each antenna transmits an orthogonal encoding of the packet header. The packet payload may be encoded across the transmissions of the two or more antennas.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: April 21, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Srinath Hosur, Michael O. Polley, Manish Goel
  • Patent number: 7509565
    Abstract: A resynchronization method for use in a data communication system having a first device configured to transmit data at a symbol rate to a second device. The second device includes a Reed Solomon (RS) decoder having a RS lock indicator and a Moving Picture Experts Group (MPEG) Protocol Interface (MPI) having a MPI lock indicator, wherein the RS and MPI lock indicators are monitored. Four different states, defined by the values of the RS and MPI lock indicators, determine whether the data communication system will wait for the RS decoded and the MPI hardware block to resynchronize, whether an intermediate-subset of the channel acquisition algorithm is performed or whether the entire channel acquisition algorithm is performed. The method of resynchronization described herein recovers synchronization within a predetermined time without the layers above the physical link layer having knowledge.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: March 24, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Xiaolin Lu, Srinath Hosur, Manish Goel, Michael O Polley
  • Patent number: 7457232
    Abstract: A preamble frequency switching design technique for frequency switching the training symbols within the preamble associated with a MIMO communication system ensures that data throughput is optimized.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: November 25, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: David P Magee, Manish Goel, Michael T. Direnzo, Michael O. Polley
  • Publication number: 20080222370
    Abstract: A method and apparatus of managing data stream, the method comprising archiving received data in a circular buffer; utilizing a breakpoint in realizing the archived received data continuity, wherein the breakpoint is set to the last data portion of the archived received data; when the archiving of the received data approaches the end of the circular buffer, stitching the last portion of the archived received data to the start of the circular buffer; and setting the breakpoint to the updated last data portion of the archived data.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 11, 2008
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Fitzgerald J Archibald, Stephen Hsiao-Yi Li, Michael O. Polley, Mohamed F. Mansour, Ramesh Naidu G
  • Publication number: 20080192869
    Abstract: The present invention provides a concurrent gain generator for use with a MIMO transmitter havi'ng an N of two or more transmit antennas. In one embodiment, the concurrent gain generator includes a first sequence formatter that provides one of the N transmit antennas with a gain training sequence during an initial time interval, and a second sequence formatter that further provides (N?1) remaining transmit antennas with (N?1) additional gain training sequences during the initial time interval to train receive gains. The present invention also provides a non-concurrent gain adjuster for use with a MIMO receiver employing an M of two or more receive antennas. In one embodiment, the non-concurrent gain adjuster includes a gain combiner that computes a common receive gain as a function of M independent receive gains, and a gain applier that applies the common receive gain to receivers associated with the M receive antennas.
    Type: Application
    Filed: April 21, 2008
    Publication date: August 14, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Manish Goel, David P. Magee, Michael T. DiRenzo, Michael O. Polley
  • Patent number: 7382832
    Abstract: The present invention provides a time-switched preamble supplement generator for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas wherein N is at least two. In one embodiment, the time-switched preamble supplement generator includes an initial preamble supplement formatter configured to provide a first permutation of a set of preamble supplements to the N transmit antennas during an initial time interval. The first permutation includes a single first preamble supplement and at least one second preamble supplement. The time-switched preamble supplement generator also includes a subsequent preamble supplement formatter coupled to the initial preamble supplement formatter and configured to provide (N?1) mutually exclusive further permutations of the set to the N transmit antennas during (N?1) subsequent time intervals.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: June 3, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: David P. Magee, Srinath Hosur, Michael O. Polley, Srikanth Gummadi
  • Publication number: 20080095281
    Abstract: In a wireless MIMO system with interference cancellation, compensate for decision errors in the cancelled symbols by adjustments to the scaling of the soft estimates with additive interference-proportional to estimates of the decision error probability.
    Type: Application
    Filed: December 30, 2005
    Publication date: April 24, 2008
    Inventors: Srinath Hosur, Michael O. Polley, Anuj Batra, Manish Goel
  • Patent number: 7321564
    Abstract: A Hybrid IMMSE-LMMSE receiver processing technique predicts performance of and selects between iterative and non-iterative decoding of symbols based on an intelligent metric. Based on a pre-specified criterion, the receiver determines if a correct first-stage decision is made or not. If a correct decision is made, then it follows iterative processing like in BLAST. Alternatively, if a wrong decision is found to have occurred, the receiver resorts to LMMSE estimation processing.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: January 22, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Muhammad Zubair Ikram, Srinath Hosur, Michael O. Polley, Manish Goel
  • Patent number: 7304995
    Abstract: Systems and methods for transmitting packets and controlling packet flow are provided in wireless communication systems. A time stamping technique synchronizes timers/and clocks between one or more senders and receivers in a wireless communication system. Additionally, a global acknowledgement frame carries a plurality of acknowledgement messages, such as one for each services identification (SID).
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: December 4, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Xiaolin Lu, Ping Tao, Michael O. Polley
  • Patent number: 7236532
    Abstract: A method of communicating across a channel includes receiving information having a known bandwidth and a known spectrum. The information is preferably in the form of a multicarrier modulated signal, e.g., a DMT signal. In one aspect, this information is received at a receiver having a reduced channel bandwidth. An aliasing spectrum can be calculated based on the known spectrum and the frequency difference between the known bandwidth and the reduced-channel bandwidth. The received information can then be modified based upon the aliasing function to compensate for alias distortion. For example, the received information can be modified by modifying the noise component or signal-to-noise ratio of the received information.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: June 26, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Fernando A. Mujica, Michael O. Polley, Arthur J. Redfern, Nirmal C. Warke, Yaser M. Ibrahim
  • Patent number: 7161978
    Abstract: A system for synchronizing sender sliding windows and receiver sliding windows employed in wireless packet communication is provided. The sender sliding window buffers outgoing packets to be sent to a receiver that employs a receiver sliding window to buffer incoming packets. A sender window manager manages the sender sliding window through positive acknowledgement, negative acknowledgement and/or timeout processing to facilitate synchronizing the sender sliding window with the receiver sliding window without employing synchronization messages or master/slave control. Similarly, a receiver window manager manages the receiver sliding window through sequence number analysis to facilitate synchronizing the receiver sliding window with the sender sliding window without employing synchronization messages or master/slave control.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: January 9, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Xiaolin Lu, Ping Tao, Michael O. Polley
  • Patent number: 7120854
    Abstract: A resynchronization method for use in a data communication system having a first device configured to transmit data at a symbol rate to a second device. The second device includes a Reed Solomon (RS) decoder having a RS lock indicator and a Moving Picture Experts Group (MPEG) Protocol Interface (MPI) having a MPI lock indicator, wherein the RS and the MPI lock indicators are monitored. Four different states, defined by the values of the RS and MPI lock indicators, determine whether the data communication system will wait for the RS decoder and the MPI hardware block to resynchronize, whether an intermediate-subset of the channel acquisition algorithm is performed or whether the entire channel acquisition algorithm is performed. The method for resynchronization described herein recovers synchronization within a predetermined time without the layers above the physical link layer having knowledge.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: October 10, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Xiaolin Lu, Srinath Hosur, Manish Goel, Michael O. Polley
  • Patent number: 7050768
    Abstract: For use with a multiple-input, multiple-output (MIMO) transmitter, a signal field controller, a method of controlling signal fields and a MIMO transmitter incorporating the controller or the method. In one embodiment, the controller includes: (1) a primary signal field mode indicator configured to cause a primary signal field to indicate a presence of a supplemental signal field and provide the primary signal field to the MIMO transmitter for transmission thereby and (2) a supplemental signal field generator coupled to the primary signal field mode indicator and configured to provide a supplemental signal field to the MIMO transmitter for further transmission thereby only when the primary signal field indicates the presence.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 23, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Srinath Hosur, Srikanth Gummadi, Michael O. Polley, Manish Goel