Patents by Inventor Chih-Ping Hsu

Chih-Ping Hsu 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: 20160315229
    Abstract: A light emitting diode (LED) package includes a substrate having a first surface and a second surface located opposite at the first surface, an LED chip mounted on the first surface of the substrate, a reflector cup mounted on the first surface of the substrate and surrounding the LED chip therein, and an encapsulation layer located on the reflector cup. The encapsulation layer includes a glue and a plurality of quantum dots mixed in the glue. The quantum dots having a plurality of different diameters and configured to absorb light emitted from the LED chip and thereby become excited to generate light with different wavelengths from the light emitted from the LED chip.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 27, 2016
    Inventors: FENG-YUEN DAI, CHAU-JIN HU, PO-CHOU CHEN, CHIH-PING HSU
  • Patent number: 9462489
    Abstract: Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
  • Patent number: 9402274
    Abstract: Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when a first subscription is in a data communication session and a second subscription is in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 26, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Anand Rajurkar, Parthasarathy Krishnamoorthy, Chih-Ping Hsu, Reza Shahidi
  • Patent number: 9386626
    Abstract: Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when a first subscription is in a voice call and a second subscription is in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 5, 2016
    Inventors: Chih-Ping Hsu, Parthasarathy Krishnamoorthy, Anand Rajurkar, Reza Shahidi
  • Patent number: 9374790
    Abstract: Systems, methods, apparatuses, and media are provided for downlink power control. Embodiments include determination that a portion of a frame to be transmitted in a downlink from a base station to a user equipment (UE) may be lost by the UE. Embodiments further include determination that a portion of the frame will be received by the UE. Embodiments further include causing a transmit power of the base station to be increased for the portion of the frame that will be received.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: June 21, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Chih-Ping Hsu
  • Publication number: 20160128071
    Abstract: Various embodiments provide methods, devices, and non-transitory processor-readable storage media for avoiding coexistence interference between radio access technologies (RATs) operating on a multi-active communication device. Various embodiments provide methods, devices, and non-transitory processor-readable storage media to leverage an ability of a multi-active communication device to manage two RATs and/or subscriptions to protect on-demand traffic service performance, such as Multimedia Messaging Service (“MMS”) service performance, when inter-RAT coexistence interference is occurring, or is likely to occur, between an on-demand traffic service, such as a MMS service, and a data service. In some embodiments, an on-demand traffic service may be a bursty on-demand traffic service.
    Type: Application
    Filed: July 22, 2015
    Publication date: May 5, 2016
    Inventors: Francis Ming-Meng Ngai, Chih-Ping Hsu, Shriram Gurumoorthy, Jan Michael San Pedro
  • Publication number: 20160112959
    Abstract: Systems, methods, apparatuses, and media are provided for downlink power control. Embodiments include determination that a portion of a frame to be transmitted in a downlink from a base station to a user equipment (UE) may be lost by the UE. Embodiments further include determination that a portion of the frame will be received by the UE. Embodiments further include causing a transmit power of the base station to be increased for the portion of the frame that will be received.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 21, 2016
    Inventor: Chih-Ping Hsu
  • Patent number: 9232484
    Abstract: Methods and apparatus of controlling user equipment transmit power in a wireless communication system include communicating with a first base station and a second base station. Further, the methods and apparatus include establishing a high speed channel with one of the first base station or the second base station, wherein the one of the first base station or the second base station defines a high speed serving cell and a remaining one of the first base station or the second base station defines a non-high speed cell. Additionally, the methods and apparatus include ignoring a transmit power control command from the non-high speed cell when a high speed power control state applies to controlling a transmit power level.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: January 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Ping Hsu, Jimmy Chi-Wai Chui, Nate Chizgi
  • Publication number: 20150350985
    Abstract: Various embodiments include methods, systems, and devices for communicating with a first network and a second network using a mobile device having a single radio comprising a transmitter and a receiver. The transmitter and the receiver may be tuned to the first network. The transmitter may also transmit to the first network. The receiver may tune away to the second network for a tune-away period. The transmitter may transmit to the first network during the tune-away period. A determination may be made whether the transmitter and the receiver will cause interference during the tune-away period. Transmissions may be paused from the transmitter in response to determining that the transmitter and the receiver will cause interference during the tune-away period.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 3, 2015
    Inventors: Chih-Ping HSU, Farrukh USMANI, Ling HANG, Rajagopal JEENAGALA
  • Patent number: 9204353
    Abstract: Various embodiments include methods, systems, and devices for tuning away a mobile device's receiver without retuning the mobile device's transmitter, thereby allowing the mobile device to monitor multiple networks with a single radio frequency (RF) chain while avoiding the problems often associated with tune-away methods, such as loss of throughput, loss of tracking or synchronization, delays in acknowledgments, delays in rate control or channel quality control feedback, etc. The transmitter may remain tuned to a first network while the receiver may be separately tuned to one or more other networks. In various embodiments, the separately tuned receiver may monitor for paging signals on one or more networks while the transmitter remains tuned to the first network and transmits data or control signals.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Ping Hsu, Farrukh Usmani, Ling Hang, Rajagopal Jeenagala
  • Publication number: 20150334578
    Abstract: Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device.
    Type: Application
    Filed: July 14, 2014
    Publication date: November 19, 2015
    Inventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
  • Patent number: 9125126
    Abstract: Methods and apparatus of monitoring cells in a wireless communication system may include determining existence of a condition for performing a cell search on a frequency. In addition, the methods and apparatus may include calculating an undetected energy-related value for a hypothetical undetected cell based on a measured energy-related value of each detected cell on the frequency in response to determining the condition for performing the cell search. The methods and apparatus may further include determining whether to perform the cell search based on the undetected energy-related value and a reselection criteria.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Vansh Pal Singh Makh, Harish Venkatachari, Jittra Jootar, An-Swol Clement Hu, Chih-Ping Hsu
  • Patent number: 9066330
    Abstract: Methods, systems and devices are provided for controlling a communication device. Embodiments include receiving, through the transceiver, a voice call from a first network subscription associated with a first SIM of the communication device. The voice call may interrupt an active data services session through the transceiver with a second network subscription associated with a second SIM of the communication device. Also, embodiments include establishing an active voice communication connection for the voice call on the transceiver with the first network subscription. Additionally, reestablishing the active data services session through the transceiver with the first network subscription while maintaining the active voice communication connection for the voice call with the first network subscription.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 23, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ling Hang, Chih-Ping Hsu
  • Patent number: 9037168
    Abstract: The various embodiments include methods for managing how a MSMS communication device that is accessing an arbitrary combination of multiple telephony networks processes paging collisions. The embodiment methods promote improving a subscription's page blocking rate by causing a MSMS communication device to implement a retransmission remedial action for a blocked subscription. In the various embodiments, the MSMS communication device may implement the retransmission remedial action by increasing a blocked subscription's priority during a subsequent retransmission interval to increase the likelihood that the blocked subscription will receive a repeated page message from its mobile network during this retransmission interval. In some embodiments, the blocked subscription's current priority may be based on the number of retransmission intervals that are presently occurring.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 19, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chih-Ping Hsu, Simon Walke, Shawn C. Morrison, Francis M. Ngai
  • Patent number: 9024351
    Abstract: A semiconductor light-emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer, a light-emitting layer, an electrode, an insulating layer, and an adhesive layer is provided. The light-emitting layer is disposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer. The electrode is disposed on the first conductive type semiconductor layer. The insulating layer covers a part of the first conductive type semiconductor layer and the electrode. The adhesive layer is disposed between the electrode and the insulating layer so as to bond the electrode and the insulating layer.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: May 5, 2015
    Assignee: Huga Optotech Inc.
    Inventors: Der-Wei Tu, Wei-Chih Wen, Tai-Chun Wang, Po-Hung Lai, Chih-Ping Hsu
  • Publication number: 20150094071
    Abstract: Methods, systems and devices are provided for controlling a communication device. Embodiments include receiving, through the transceiver, a voice call from a first network subscription associated with a first SIM of the communication device. The voice call may interrupt an active data services session through the transceiver with a second network subscription associated with a second SIM of the communication device. Also, embodiments include establishing an active voice communication connection for the voice call on the transceiver with the first network subscription. Additionally, reestablishing the active data services session through the transceiver with the first network subscription while maintaining the active voice communication connection for the voice call with the first network subscription.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ling Hang, Chih-Ping Hsu
  • Publication number: 20150079985
    Abstract: Methods, devices, and systems embodiments enable recovering from an out-of-service state in a wireless device. A processor may perform scans of first and second acquisition databases to acquire a first renewed service connection for a first subscriber identification module (SIM). The scans include first and second searches for first channels identified in first and second technology lists, respectively, from the first and second acquisition database, respectively, until either a renewed service connection is acquired or each of the first and second technology lists are exhausted. The first and second technology lists identify channels from a most recently used radio access technology of the respective acquisition databases. The processor may perform a full frequency scan to acquire a first renewed service connection for the first SIM in response to determining that each of the first and second technology lists were exhausted.
    Type: Application
    Filed: July 16, 2014
    Publication date: March 19, 2015
    Inventors: Karthik Nagpal Bengoti Vuchula, Shivank Nayak, Rajesh Madhukar Patil, Jiming Guo, Venugopal Krishna Srinivasa Srungaram, Chih-Ping Hsu
  • Publication number: 20150071081
    Abstract: Aspects of the disclosure provide techniques for improving uplink transmit power control at a user equipment (UE). When the UE is communicating with multiple cells using Multi-flow High-Speed Downlink Packet Access (MF-HSDPA), the UE may control its uplink power based on an improved MF-HSDPA uplink power control algorithm, which is different from an or-of-downs (OOD) transmit power control. In handover, a UE may determine its transmit power to be less than a transmit power requested by a high-speed cell and more than an OOD transmit power.
    Type: Application
    Filed: April 2, 2014
    Publication date: March 12, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Abhinav Gupta, Nate Chizgi, Sitaramanjaneyulu Kanamarlapudi, Chih-Ping Hsu, Nitin Kasturi
  • Publication number: 20150056985
    Abstract: In various aspects, the disclosure provides the capability for a UE to implement a partial PLMN scan, providing quick results to a user's request for a manual PLMN scan, in a way that is expedited relative to the conventional method of providing PLMN results only when a full scan is completed. In further aspects, the disclosure provides for various optimizations to expedite a PLMN scan, which may be implemented either with the partial PLMN scan, or in a full PLMN scan, to further expedite the provision of PLMN scan results to the user.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Arvind Swaminathan, Rajesh Patil, Shivank Nayak, Chih-Ping Hsu, Reza Shahidi, Mingyan Wang
  • Patent number: 8917733
    Abstract: Methods and apparatuses are provided for managing a performance level of a processing circuit, such as a modem, by making adjustments to one or more operating parameters provided to the processing circuit, such as a voltage supplied to the processing circuit and/or a clock frequency of the processing circuit. The processing circuit is adapted to monitor wireless wide area network (WWAN) protocol information. The processing circuit may adjust at least one operating parameter provided to the processing circuit in response to the monitored wireless wide area network (WWAN) protocol information.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 23, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Samson Jim, Thomas Klingenbrunn, Chih-ping Hsu, Chaitanya Bhartan Shah, Farhan Muhammad Aziz, Navid Ehsan