Patents by Inventor Ramin Rezaiifar

Ramin Rezaiifar 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: 20150062370
    Abstract: Techniques are described for generating an all-in focus image with a capability to refocus. One example includes obtaining a first depth map associated with a plurality of captured images of a scene. The plurality of captured images may include images having different focal lengths. The method further includes obtaining a second depth map associated with the plurality of captured images, generating a composite image showing different portions of the scene in focus (based on the plurality of captured images and the first depth map), and generating a refocused image showing a selected portion of the scene in focus (based on the composite image and the second depth map).
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Nitesh Shroff, Ramin Rezaiifar, Piyush Sharma
  • Publication number: 20150063718
    Abstract: Techniques are described for enhancing quality of a first image that is captured in a low-light environment. In one embodiment, a second image is generated by brightening a plurality of pixels in the first image based on a predefined criteria. A third image is generated using an edge-preserving noise reduction algorithm based on the second image. Further, a composite image is generated by obtaining a weighted average of the first image and the third image. The techniques described herein can be applied to an image and/or to each frame of a video that is captured in low-light environments.
    Type: Application
    Filed: April 16, 2014
    Publication date: March 5, 2015
    Applicant: QUALCOMM Incorported
    Inventors: William Edward MANTZEL, Ramin Rezaiifar, Piyush Sharma
  • Patent number: 8958375
    Abstract: Framing techniques for an improved radio link protocol used in a wireless communication system, such as EV-DO. In one embodiment scheduling of the generation of repair symbols encoded to be transmitted along with source data is described. In another embodiment acknowledgment messages from a receiver are used to control the trailing edge of the protection window offered by the repair symbols. In another embodiment, non-acknowledgment messages from a receiver are used to control the generation of extra repair symbols. In another embodiment, a length field is used to avoid transmission of padding bytes over the air. In yet another embodiment, a symbol auxiliary field is appended to source symbols to indicate the padding bytes needed for symbol aligning thus avoiding the transmission of padding bytes over the air.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: February 17, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Mark Watson, Ramin Rezaiifar, Lorenzo Vicisano
  • Patent number: 8923212
    Abstract: In some aspect restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node may selectively be assigned to the designated channel. In some aspect an access terminal associated with macro access node may perform a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect an access terminal associated with a macro access node may perform a handoff to a different carrier based on location information. In some aspect access to a restricted access node is controlled based on policy and/or based on operation of an access terminal associated with the restricted access node.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: December 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Sanjiv Nanda, Ramin Rezaiifar, Mehmet Yavuz
  • Publication number: 20140375865
    Abstract: Systems, devices, and methods are described for efficiently super resolving a portion of an image. One embodiment involves capturing, using a camera module of a device, at least one image of a scene, and creating a higher resolution image of a user-selected region of interest. The super resolution of the region of interest may be performed by matching a high resolution grid with a grid that is at the resolution of a device camera, populating the high resolution grid with information from an image from the camera, and then populating the remaining points of the grid that are not yet populated.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventors: Nitesh SHROFF, Ramin Rezaiifar, Chiachi Sung
  • Publication number: 20140362773
    Abstract: Local IP access is provided in a wireless network to facilitate access to one or more local services. In some implementations, different IP interfaces are used for accessing different services (e.g., local services and operator network services). A list that maps packet destinations to IP interfaces may be employed to determine which IP interface is to be used for sending a given packet. In some implementations an access point provides a proxy function (e.g., a proxy ARP function) for an access terminal. In some implementations an access point provides an agent function (e.g., a DHCP function) for an access terminal. NAT operations may be performed at an access point to enable the access terminal to access local services. In some aspects, an access point may determine whether to send a packet from an access terminal via a protocol tunnel based on the destination of the packet.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Inventors: Peerapol Tinnakornsrisuphap, Fatih Ulupinar, John Nasielski, Jun Wang, Parag Agashe, Rajarshi Gupta, Ramin Rezaiifar
  • Patent number: 8874793
    Abstract: A method and apparatus for reducing HTTP header is provided. The method may include receiving a suppression identifier list, wherein the suppression identifier list associates header identifier values with at least a portion of one or more header content items in an HTTP header, replacing the one or more header content items with the corresponding header field identifier from the suppression identifier list, and transmitting the data packet with the one or more header field identifiers replacing the corresponding one or more header content items.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: October 28, 2014
    Assignee: Qualcomm Innovation Center, Inc.
    Inventors: Ramin Rezaiifar, Robert Howard Kimball
  • Patent number: 8868118
    Abstract: The present patent application comprises a method and apparatus for multiplexing reverse link feedback channels on a single reverse link frequency supporting multiple forward link frequencies for forward link channels, comprising assigning the reverse link frequency to a mobile station, assigning one or more of the forward link frequencies to the reverse link frequency, and code division multiplexing a plurality of the reverse link feedback channels on the reverse link frequency.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Parag Agashe, Peter J. Black
  • Publication number: 20140307044
    Abstract: Exemplary methods, apparatuses, and systems for image processing are described. One or more reference images are selected based on image quality scores. At least a portion of each reference image is merged to create an output image. An output image with motion artifacts is compared to a target to correct the motion artifacts of the output image.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 16, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Piyush Sharma, Nitesh Shroff, Ramin Rezaiifar
  • Publication number: 20140307960
    Abstract: Apparatuses and methods for reading a set of images to merge together into a high dynamic range (HDR) output image are described. Images have a respective HDR weight and a respective ghost-free weight. Images are merged together using the weighted average of the set of input images using the ghost-free weight. A difference image is determined based on a difference between each pixel within a HDR output image and each respective pixel within a reference image used to create the HDR output image.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 16, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Piyush Sharma, Nitesh Shroff, Ramin Rezaiifar, Chiachi Sung
  • Patent number: 8856387
    Abstract: Local IP access is provided in a wireless network to facilitate access to one or more local services. In some implementations, different IP interfaces are used for accessing different services (e.g., local services and operator network services). A list that maps packet destinations to IP interfaces may be employed to determine which IP interface is to be used for sending a given packet. In some implementations an access point provides a proxy function (e.g., a proxy ARP function) for an access terminal. In some implementations an access point provides an agent function (e.g., a DHCP function) for an access terminal. NAT operations may be performed at an access point to enable the access terminal to access local services. In some aspects, an access point may determine whether to send a packet from an access terminal via a protocol tunnel based on the destination of the packet.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Peerapol Tinnakornsrisuphap, Fatih Ulupinar, John W. Nasielski, Jun Wang, Parag A. Agashe, Rajarshi Gupta, Ramin Rezaiifar
  • Patent number: 8787578
    Abstract: Method and apparatus for encrypting transmission traffic at separate protocol layers L1, L2, and L3 so that separate encryption elements can be assigned to separate types of transmission traffic, which allows the implementation of different levels of encryption according to service requirements. Encryption elements use variable value inputs, called crypto-syncs, along with semi-permanent encryption keys to protect from replay attacks from rogue mobile stations. Since crypto-sync values vary, a method for synchronizing crypto-syncs at the mobile station and base station is also presented.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: July 22, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Roy F. Quick, Jr., Paul Williamson, Jun Wang, Edward G. Tiedemann, Jr.
  • Publication number: 20140184644
    Abstract: A mobile device detects a moveable foreground object in captured images, e.g., a series of video frames without depth information. The object may be one or more of the user's fingers. The object may be detected by warping one of a captured image of a scene that includes the object and a reference image of the scene without the object so they have the same view and comparing the captured image and the reference image after warping. A mask may be used to segment the object from the captured image. Pixels are detected in the extracted image of the object and the pixels are used to detect the point of interest on the foreground object. The object may then be tracked in subsequent images. Augmentations may be rendered and interacted with or temporal gestures may be detected and desired actions performed accordingly.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 3, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Piyush Sharma, Ramin Rezaiifar
  • Patent number: 8761713
    Abstract: Methods, apparatus and media for receiving emergency broadcast information in a broadcast-multicast service of a communication system. The methods, apparatus and media include scheduling a broadcast of emergency broadcast information in designated control channel cycles for designated subscriber stations. The control channel cycles are transmitted with the designated control channel cycles including the emergency broadcast information. Subscriber stations awake according to their designated control channel cycle and receive the transmission of their designated control channel cycle on a broadcast-multicast service. The subscriber station determines if emergency broadcast information is in the control channel cycle assigned to the subscriber station and responds accordingly.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: June 24, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Rashid A. Attar
  • Patent number: 8755407
    Abstract: Embodiments disclosed herein relate to a new set of radio link protocols (RLPs) configured to provide for efficient data transmission in a multi-link communication system. In an embodiment, an upper-layer packet is segmented into link-layer packets to be transmitted over a plurality of communication links, each including a first sequence number in accordance with a predetermined order. A second sequence number is further added to each link-layer packet to be transmitted for the first time. The second sequence number is configured to be in a sequence space associated with a particular communication link, and may be used for detection of missing packets.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: June 17, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Ramin Rezaiifar, Parag A. Agashe, Paul E. Bender
  • Patent number: 8730999
    Abstract: Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. Information to be transmitted is provided to a systematic portion of a plurality of transmit buffers and encoded by an outer decoder communicatively coupled to the transmit buffer. The resulting redundant bits are provided to a parity portion of each transmit buffer. The content of the transmit buffers, is multiplexed and encoded by an inner decoder to improve protection by adding redundancy. The receiving station recovers the transmitted information by an inverse process. Because a decoding complexity depends on the size of a systematic portion of the transmit buffer, reasoned compromise between a systematic portion size and number of transmit buffers yields decreased decoding complexity.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: May 20, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Chen, Paul E. Bender, Parag A. Agashe, Ramin Rezaiifar, Rajesh K. Pankaj, Yongbin Wei
  • Patent number: 8713400
    Abstract: Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. Information to be transmitted is provided to a systematic portion of a plurality of transmit buffers and encoded by an outer decoder communicatively coupled to the transmit buffer. The resulting redundant bits are provided to a parity portion of each transmit buffer. The content of the transmit buffers, is multiplexed and encoded by an inner decoder to improve protection by adding redundancy. The receiving station recovers the transmitted information by an inverse process. Because a decoding complexity depends on the size of a systematic portion of the transmit buffer, reasoned compromise between a systematic portion size and number of transmit buffers yields decreased decoding complexity.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 29, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Tao Chen, Paul E. Bender, Parag A. Agashe, Ramin Rezaiifar, Rajesh K. Pankaj, Yongbin Wei
  • Publication number: 20140036875
    Abstract: In a wireless communication system where different frequency bands are deployed to generate various communication zones, pilot signal set management for a plurality of pilot signals generated from an additional coverage zone is based on identifying a preselected signal set from the plurality of pilot signals and determining whether a predetermined criterion is met
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: QUALCOMM INCORPORATED
    Inventors: Ramin Rezaiifar, CHRISTOPHER GERARD LOTT, DONNA GHOSH, PETER JOHN BLACK, RISHID AHMED AKBAR ATTAR
  • Patent number: 8611303
    Abstract: Techniques to support handover of a terminal from a source base station to a target base station are described. In one design, a determination is made whether a change in personality is requested by the terminal. If the answer is ‘Yes’, then the personality of the terminal may be switched by sending one or more appropriate messages. The connection and RLP for the terminal may be reset due to the change in personality. A buffer of data reported by the source base station as being served to the terminal (e.g., no NAK was sent) may be saved by a BSC/PCF. The buffer of data may be sent to the target base station when handover occurs. New data may thereafter be sent to the target base station. This buffer of duplicate data may avoid both loss of data and retransmission timeout by TCP during the handover.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Peter Black
  • Patent number: 8605801
    Abstract: In a wireless communication system where different frequency bands are deployed to generate various communication zones, pilot signal set management for a plurality of pilot signals generated from an additional coverage zone is based on identifying a preselected signal set from the plurality of pilot signals and determining whether a predetermined criterion is met.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: December 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Christopher G. Lott, Donna Ghosh, Peter J. Black, Rashid Ahmed A. Attar