Patents by Inventor Bong Song

Bong Song 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).

  • Patent number: 9866411
    Abstract: An interference cancellation (IC) processor, a method, a method of manufacturing a semiconductor device, and a method of constructing an integrated circuit are provided. The IC processor includes a plurality of mono interference cancellation (MIC) filter estimation processors, each including a different equalizer offset k0 and an input for receiving a de-rotated signal, and providing an effective channel hres,i and an estimated filter pi; a plurality of filters, each including an input connected to the plurality of MIC filter estimation processors, and an output; a plurality of multipliers, each including a first input connected to the plurality of filters, a second input for receiving a weight, and an output; and a branch combiner including a plurality of inputs connected to the plurality of multipliers, a first output for providing a combined residual channel Hres, and a second output for providing a projected output y of the de-rotated signal.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: January 9, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kee-Bong Song, Hairuo Zhuang, Ming Yan
  • Patent number: 9838054
    Abstract: A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 5, 2017
    Assignee: Apple Inc.
    Inventors: Wen Zhao, Paul V. Flynn, William S. Burchill, Vinay R. Majjigi, Xiaowen Wang, Syed A. Mujtaba, Kee-Bong Song
  • Patent number: 9832788
    Abstract: Mechanisms for operating a wireless user equipment device, to determine the state of data scheduling activity. Such activity state (and other information such as measurements of signal interference and/or channel condition) may be used to dynamically control the selection of a high-power high-performance receiver vs. a low-power basic receiver. A first mechanism involves transitioning to a high activity state and starting a timer upon each occurrence of scheduled subframe. A transition to the low activity state occurs whenever the timer expires. A second mechanism involves filtering a sequence of binary-valued indicators corresponding respectively to a sequence of time intervals. Each indicator indicates whether a subframe is scheduled during the corresponding time interval. The filter output is compared to a threshold to determine high/low activity state.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 28, 2017
    Assignee: Apple Inc.
    Inventors: Youngjae Kim, Kee-Bong Song, Syed Aon Mujtaba
  • Publication number: 20170331654
    Abstract: An interference cancellation (IC) processor, a method, a method of manufacturing a semiconductor device, and a method of constructing an integrated circuit are provided. The IC processor includes a plurality of mono interference cancellation (MIC) filter estimation processors; a combined effective channel calculation processor; a combined filter calculation processor; and a combined filter processor, including a first input connected to the output of the combined filter calculation processor, a second input for receiving a signal for setting a length of the combined filter that is connected to a second input of the IC processor, a third input connected to the input of the MIC-BRC processor, and an output for providing a filtered output of a de-rotated GMSK signal that is connected to a second output of the IC processor that provides a filtered output yi of the de-rotated GMSK signal.
    Type: Application
    Filed: August 25, 2016
    Publication date: November 16, 2017
    Inventors: Kee-Bong SONG, Shuangquan WANG, Hairuo ZHUANG
  • Patent number: 9807651
    Abstract: A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: October 31, 2017
    Assignee: Apple Inc.
    Inventors: Syed Aon Mujtaba, Tarik Tabet, Paul V. Flynn, Kee-Bong Song
  • Patent number: 9763185
    Abstract: Methods and apparatus for adaptively adjusting receiver operation for e.g., power optimization. In one embodiment, operation during diversity operation is adaptively adjusted. Diversity techniques consume significantly more power than non-diversity operation. However, the performance gain from receiver diversity is not always predictable. Consequently, in one embodiment, a device evaluates the overall performance gain contributed by diversity operation and, where the performance gain is insignificant or inadequate, the device disables diversity operation. In one implementation, the device can operate in a static single antenna mode, a dynamic single antenna mode and a dynamic multiple antenna mode.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 12, 2017
    Assignee: APPLE INC.
    Inventors: Syed Aon Mujtaba, Youngjae Kim, Kee-Bong Song, Xiaowen Wang, Yuchul Kim
  • Publication number: 20170086133
    Abstract: Apparatuses (including user equipment (UE) and modem chips for UE), systems, and methods for calculating more accurate Reference Signal Received Power (RSRP) measurements and/or detecting/eliminating ghost cells from a list of (supposed) neighboring cells are described. In one method, the cross-correlations between adjacent Cell-specific Reference Signals (CRSs) are used to calculate the RSRP and to detect any ghost cells in a list of (supposed) neighboring cells. Any detected ghost cell may be deleted from any searches and measurements by the UE, and may also be reported to the network.
    Type: Application
    Filed: December 9, 2015
    Publication date: March 23, 2017
    Inventors: Kee-bong SONG, Shengshan CUI, Hairuo ZHUANG, Yangwen LIANG, Vignesh SETHURAMAN
  • Patent number: 9603184
    Abstract: A method is disclosed for coordinating a user equipment's communication with a network during tune back with C-DRX (connected mode discontinuous receive). When a user equipment tunes back to a network after a tune away or a signal fade, a scheduling request is sent to the network to indicate the tune back as quickly as possible. The user equipment waits for a downlink transmission from the network. When the user equipment does not receive the downlink transmission, the method determines if the connection between the user equipment and the network has been released. The sending of the first scheduling request and any additional scheduling requests is coordinated with the C-DRX configuration so as to maximize the battery savings of C-DRX and minimize the latency of the tune back process in case the user equipment has uplink data to send.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 21, 2017
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Paul V. Flynn, Sreevalsan Vallath, Kee-Bong Song, Syed A. Mujtaba, Li Su
  • Publication number: 20170073055
    Abstract: A centrifugal propulsion apparatus capable of forward and backward movement, and a ship having the same, the apparatus includes two impellers which are rotated by a power shaft, face each other, and are capable of jetting a fluid in opposite directions; and a power transmission unit provided between the power shaft and the two impellers so as to connect one impeller between the two impellers and the power shaft or connect the other impeller and the power shaft according to a rotational direction of the power shaft.
    Type: Application
    Filed: March 12, 2015
    Publication date: March 16, 2017
    Inventor: Kil Bong SONG
  • Patent number: 9596637
    Abstract: In order to facilitate communication between an electronic device and another electronic device, the electronic device determines communication-quality metrics for a first connection in a wireless network based on received information from the other electronic device. Then, the electronic device calculates an overall communication-quality indicator for the first connection based on at least some of the communication-quality metrics. Moreover, the electronic device dynamically adapts the communication with the other electronic device based on the overall communication-quality indicator. For example, the electronic device may establish a second connection in a cellular-telephone network and may use the second connection to communicate with the other electronic device.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 14, 2017
    Assignee: Apple Inc.
    Inventors: Christopher J. Hansen, Kee-Bong Song, Syed A. Mujtaba, Vinay R. Majjigi, Xiaowen Wang
  • Patent number: 9560598
    Abstract: In order to reduce power consumption of an electronic device during wireless communication, the electronic device may transition between a baseline (simple) receiver and a higher-power advanced receiver based on network conditions and/or environmental conditions. For example, the transition to the advanced receiver may occur when it offers improved communication performance over the baseline receiver, such as when there is significant interference and a high data rate, or when there is significant interference and a signal-to-noise ratio (SNR) is low. Similarly, the transition to the baseline receiver may occur when the capabilities of the advanced receiver are not needed, such as when there is less interference, or when the data rate is lower and the SNR is high. In this way, the electronic device can avoid the added power consumption associated with the advanced receiver except where the communication performance offered by the advanced receiver is needed.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 31, 2017
    Assignee: Apple Inc.
    Inventors: Syed A. Mujtaba, Kee-Bong Song, Youngjae Kim
  • Patent number: 9544113
    Abstract: Methods and apparatus for interference coordination to improve transmission and reception performance within wireless networks. In one exemplary embodiment, a wireless transmitter transmits multiple transmissions over a determined time. The receiver receives the multiple transmissions and attempts to recover the transmitted signal. Because, the fading channel varies over time for each transmitter-receiver, by combining the received signals over multiple iterations, the signal of interest will be magnified, whereas interference effects will be suppressed.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 10, 2017
    Assignee: Apple Inc.
    Inventors: Seyed Reza Mir Ghaderi, Kee-Bong Song, Syed A. Mujtaba
  • Patent number: 9510273
    Abstract: A communication system includes: an antenna configured to receive a receiver signal; a communication unit, coupled to the antenna, configured to: generate a power analysis result including a signal-interference measure based on the receiver signal; and select a transmission frequency based on the signal-interference measure for communicating through a device.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: November 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Fan Wang, Kee-Bong Song, Seongho Hur, Jeong Heon Lee, KiHyun Do
  • Patent number: 9509343
    Abstract: Apparatuses may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. Information may be gathered relating to the fading environment of the communications circuitry, such as whether the wireless communications circuitry is transitioning between a fast fading environment and a slow fading environment. For example, the wireless communications circuitry may further include a satellite positioning system receiver or an accelerometer, which may be used in gathering the information. The difference measurements may be filtered and compared to antenna switching criteria such as antenna switching thresholds.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 29, 2016
    Assignee: Apple Inc.
    Inventors: Syed A. Mujtaba, Kee-Bong Song
  • Patent number: 9495030
    Abstract: Discussed is an LCD device including a touch screen which reduces the influence of noise applied to the touch screen by driving of a liquid crystal panel and thus leads to enhancement of the touch sensing performance. The LCD device includes a liquid crystal panel, a plurality of first touch electrodes, an insulation unit, a tempered glass, and a plurality of second touch electrodes. The liquid crystal panel includes a lower substrate and an upper substrate. The first touch electrodes are formed on the upper substrate for detecting a touch point in a first direction. The insulation unit is formed on the first touch electrodes. The tempered glass is formed on the insulation unit. The second touch electrodes are formed at a lower surface of the tempered glass for detecting a touch point in a second direction.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 15, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Hun Shin, Byung Koo Kang, Moon Bong Song, Shi Cheol Song
  • Patent number: 9484780
    Abstract: Provided is a segmented armature motor, which includes a plurality of armature coils which enclose a rotor having a rotary shaft, an armature which houses the armature coil and which is coupled in a segmented form, a motor frame which is coupled to the armature so as to enclose the armature, and motor covers coupled to the front and rear faces of the motor frame. The segmented armature motor is formed so that the armature coils completely enclose a pole portion of the rotor and are formed into a horseshoe shape or U shape, thereby minimizing magnetic losses of the armature and of the rotor.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: November 1, 2016
    Inventor: Kil Bong Song
  • Patent number: 9461796
    Abstract: Methods and apparatus for interference coordination to improve transmission and reception performance within wireless networks. In one exemplary embodiment, a wireless transmitter transmits multiple transmissions over a determined time. The receiver receives the multiple transmissions and attempts to recover the transmitted signal. Because, the fading channel varies over time for each transmitter-receiver, by combining the received signals over multiple iterations, the signal of interest will be magnified, whereas interference effects will be suppressed.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 4, 2016
    Assignee: Apple Inc.
    Inventors: Seyed Reza Mir Ghaderi, Kee-Bong Song, Syed A. Mujtaba
  • Patent number: 9432922
    Abstract: Apparatuses (including user equipment (UE) and modem chips for UE), systems, and methods for reducing false alarms (FAs) and miss-detections (MDs) in cell search results are described. In one method, the minimum of a value for the accumulated metric for a first short code and a value for the accumulated metric for a second short code is used as a pruning metric for each candidate cell. One or more thresholds are applied to the pruning metric to determine whether the candidate cell will be pruned from the final candidate cell list.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kee-bong Song, Shengshan Cui, Hairuo Zhuang, Yangwen Liang, Vignesh Sethuraman
  • Patent number: 9386488
    Abstract: Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: July 5, 2016
    Assignee: Apple Inc.
    Inventors: Tarik Tabet, Syed A. Mujtaba, Xiaowen Wang, Paul Flynn, Kee-Bong Song, Vinay Majjigi, Youngjae Kim, Yuchul Kim, Christian Mucke
  • Patent number: 9363005
    Abstract: Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry with first and second ports that are coupled by switching circuitry to first and second antennas. A first receiver in the transceiver circuitry may be associated with the first port and a second receiver in the transceiver circuitry may be associated with the second port. An electronic device may be operated in a single receiver mode in which only one of the receivers is active to conserve power or a dual receiver mode in which signals from both antennas may be received in parallel to compare antenna performance. Based on antenna performance metrics, the electronic device may adjust the switching circuitry to ensure that an optimal antenna is being used.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: June 7, 2016
    Assignee: Apple Inc.
    Inventors: Isabel G. Mahe, Jianxiong Shi, Kee-Bong Song, Ming Hu, William S. Burchill, Syed A. Mujtaba, Johnson O. Sebeni, Haining Zhang