Patents by Inventor Hoojin Lee

Hoojin Lee 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).

  • Techniques for transmitting data in a wireless communication system using quasi-orthogonal space-time code
    Patent number: 8290080
    Abstract: A technique for communicating in a wireless communication system includes creating, using two distinct Alamouti codes, a power-scaled quasi-orthogonal space-time block code. The technique further includes transmitting, using a transmitter, the power-scaled quasi-orthogonal space-time block code over multiple antennas (e.g., three or four transmit antennas).
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: October 16, 2012
    Assignee: Freescale Semiconductor, Inc.
    Inventor: Hoojin Lee
  • Techniques for reducing joint detection complexity in a channel-coded multiple-input multiple-output communication system
    Patent number: 8185798
    Abstract: A technique for joint detection of channel-coded signals in a multiple-input multiple-output system includes detecting, when a decoded signal associated with a first symbol stream passes a cyclic redundancy check, channel-coded signals in the first symbol stream and a second symbol stream using minimum mean squared error with ordered successive interference cancellation (MMSE-OSIC) based detection. When the decoded signal associated with the first symbol stream fails the cyclic redundancy check, the channel-coded signals in the first and second symbol streams are detected using neighbor search algorithm (NSA) based detection.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: May 22, 2012
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Oghenekome F. Oteri, Leo G. Dehner, Jayesh H. Kotecha, Hoojin Lee
  • Techniques for Transmitting Data in a Wireless Communication System Using Quasi-Orthogonal Space-Time Code
    Publication number: 20100208833
    Abstract: A technique for communicating in a wireless communication system includes creating, using two distinct Alamouti codes, a power-scaled quasi-orthogonal space-time block code. The technique further includes transmitting, using a transmitter, the power-scaled quasi-orthogonal space-time block code over multiple antennas (e.g., three or four transmit antennas).
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Inventor: Hoojin Lee
  • Techniques for Reducing Joint Detection Complexity in a Channel-Coded Multiple-Input Multiple-Output Communication System
    Publication number: 20090327835
    Abstract: A technique for joint detection of channel-coded signals in a multiple-input multiple-output system includes detecting, when a decoded signal associated with a first symbol stream passes a cyclic redundancy check, channel-coded signals in the first symbol stream and a second symbol stream using minimum mean squared error with ordered successive interference cancellation (MMSE-OSIC) based detection. When the decoded signal associated with the first symbol stream fails the cyclic redundancy check, the channel-coded signals in the first and second symbol streams are detected using neighbor search algorithm (NSA) based detection.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Oghenekome F. Oteri, Leo G. Dehner, Jayesh H. Kotecha, Hoojin Lee