Patents by Inventor Chiao-Chih Chang

Chiao-Chih Chang 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: 20230370643
    Abstract: The present invention provides a control method of an electronic device, wherein the control method includes the steps of: obtaining a plurality of MPDUs, wherein the plurality of MPDUs corresponds to at least one I-frame and at least one P-frame; selectively duplicating the MPDUs corresponding to the I-frame to generate a plurality of duplicated MPDUs; and aggregating the plurality of MPDUs and the plurality of duplicated MPDUs in at least one PPDU.
    Type: Application
    Filed: April 26, 2023
    Publication date: November 16, 2023
    Applicant: MEDIATEK INC.
    Inventors: Ying-You Lin, Chiao-Chih Chang, He-Yuan Lin
  • Publication number: 20230147527
    Abstract: Solutions pertaining to allocating antennas of a user equipment (UE) between connections using different RATs are proposed. A UE has a first connection to a first network and a second connection to a second network, each connection employing a respective radio access technology (RAT). During operation, the UE may identify a precondition of reconfiguring the connections. For example, the UE may intend to change a multi-input-multi-output (MIMO) setting of the first connection in order to release some antennas that can be allocated to the second connection to relieve a communication bottleneck thereof. Prior to reconfiguring the connections, the UE may communicate its intent to the first network. The UE may not reconfigure the connections until a confirmation is received from the first network.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 11, 2023
    Inventors: Chiao-Chih Chang, Che-Li Lin
  • Patent number: 11611973
    Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 21, 2023
    Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
  • Publication number: 20230027841
    Abstract: A communications apparatus includes a radio transceiver transmitting or receiving wireless signals in a wireless network and a processor coupled to the radio transceiver. The processor is configured to perform operations comprising: transmitting pre-schedule mechanism assistance information to a network device in the wireless network for the network device to refer to for uplink (UL) resource allocation regarding a pre-schedule mechanism; receiving one or more uplink (UL) grants from the network device; and performing UL transmission to the network device responsive to receiving the one or more UL grants.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 26, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chiao-Chih Chang, Jianwei Zhang, Yu-Po Wang, Jun-Jie Su
  • Publication number: 20230007559
    Abstract: A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: connecting to a first network device via a first communication link in a first frequency band; predicting a handover according to at least one of at least one measurement result or location information; connecting to a second network device via a second communication link in a second frequency band, after predicting the handover; performing the handover from the first network device to a third network device, to stop connecting to the first network device and to connect to the third network device via the first communication link in the first frequency band; and stopping connecting to the second network device, after performing the handover.
    Type: Application
    Filed: June 19, 2022
    Publication date: January 5, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chiao-Chih Chang, Yuan-Chieh Lin, Chih-Yuan Tsai, Chien-Chun Huang-Fu, Yi-Lun Chen, Ying-You Lin
  • Publication number: 20220408365
    Abstract: A power optimization method for uplink data transmission is provided. The power optimization method is applied to user equipment (UE). The power optimization method includes the following steps. The UE determines the current application scenario of the UE. The UE determines the data transmission window corresponding to the current application scenario. Data transmission windows corresponding to different application scenarios of the UE have at least one of different period to transmit data and different period to enter suspension. The UE may transmit data based on the determined data transmission window.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 22, 2022
    Inventors: Chiao-Chih CHANG, I-Wei TSAI, Jun-Jie SU, Ho-Wen PU, En-Jung FARN
  • Publication number: 20220407618
    Abstract: A communication apparatus includes a radio transceiver, an application processor and a modem processor. The radio transceiver transmits or receives wireless signals to or from a network device in a wireless network to communicate with the network device via a communication link. The application processor is configured to run one or more application programs. The modem processor is coupled to the radio transceiver and the application processor and configured to perform operations including: evaluating a future condition of the communication link according to at least one communication parameter or at least one communication event to obtain an evaluation result; and sending a first indication to the application processor to inform the application processor of the evaluation result. Responsive to reception of the first indication, the application processor is further configured to perform operation including: adapting a codec for multimedia processing of data received from the network device.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 22, 2022
    Applicant: MEDIATEK INC.
    Inventors: Chien-Chun Huang-Fu, Chiao-Chih Chang, Yuan-Chieh Lin, Sheng-Yi Ho
  • Publication number: 20220286961
    Abstract: A method applied to a base station includes receiving UE-aiding information that includes a power consumption requirement of the UE; and configuring one or more transmission parameters to the UE based on the UE-aiding information. The transmission parameters may include at least one of the number of antennas, the number of component carriers, a transmission bandwidth, a modulation scheme, a scheduling request period, and a radio access technology (RAT).
    Type: Application
    Filed: March 4, 2022
    Publication date: September 8, 2022
    Inventors: Chiao-Chih CHANG, Jianwei ZHANG, Nien-En WU, Chih-Yuan TSAI, Tsung-Ming LEE, Jun-Jie SU
  • Publication number: 20210329664
    Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
  • Patent number: 11089612
    Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 10, 2021
    Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
  • Publication number: 20200187041
    Abstract: The present invention provides a wireless communication method of a wireless device, wherein the wireless communication method includes the steps of: generating a first link-layer packet in a data link layer of the wireless device; using a first channel to transmit the first link-layer packet to an electronic device external to the wireless device; determining if a transmission of the first link-layer packet satisfies a condition; when the transmission of the first link-layer packet satisfies the condition, generating a second link-layer packet in the data link layer by duplicating data within the first link-layer packet; and using a second channel to transmit the second link-layer packet to the electronic device, and using the first channel to transmit the first link-layer packet again to the electronic device concurrently.
    Type: Application
    Filed: November 1, 2019
    Publication date: June 11, 2020
    Inventors: Tsai-Yuan Hsu, Yi-Lun Chen, Chiao-Chih Chang
  • Publication number: 20200154457
    Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.
    Type: Application
    Filed: October 2, 2019
    Publication date: May 14, 2020
    Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Vincent Yang
  • Patent number: 9531387
    Abstract: A handheld device and a frequency tracking method thereof are provided. The handheld device comprises an oscillator, a radio frequency (RF) chip, a modem module, a first thermal sensor and a thermal module. The oscillator generates an oscillation signal with an oscillation frequency. The RF chip is electrically connected to the oscillator and configured to receive a paging signal from a paging channel and an RF signal from a non-regular channel based on the oscillation signal. The modem module is electrically connected to the RF chip. The first thermal sensor disposed close to the oscillator measures a heat source temperature. The thermal module electrically connected to the modem module and the first thermal sensor enables the modem module to execute a frequency compensation process by using the RF signal of both the paging signal and the RF signal according to the heat source temperature.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: December 27, 2016
    Assignee: MEDIATEK INC.
    Inventors: Chun-Jen Fang, Ching-Sheng Wu, Meng-Lin Wu, Chih-Ming Wang, Chiao-Chih Chang
  • Publication number: 20150282156
    Abstract: A handheld device and a frequency tracking method thereof are provided. The handheld device comprises an oscillator, a radio frequency (RF) chip, a modem module, a first thermal sensor and a thermal module. The oscillator generates an oscillation signal with an oscillation frequency. The RF chip is electrically connected to the oscillator and configured to receive a paging signal from a paging channel and an RF signal from a non-regular channel based on the oscillation signal. The modem module is electrically connected to the RF chip. The first thermal sensor disposed close to the oscillator measures a heat source temperature. The thermal module electrically connected to the modem module and the first thermal sensor enables the modem module to execute a frequency compensation process by using the RF signal of both the paging signal and the RF signal according to the heat source temperature.
    Type: Application
    Filed: December 31, 2014
    Publication date: October 1, 2015
    Inventors: Chun-Jen FANG, Ching-Sheng WU, Meng-Lin WU, Chih-Ming WANG, Chiao-Chih CHANG
  • Publication number: 20150181154
    Abstract: The present invention discloses a method for playing a video, which includes the following steps: a selected video is played on a first display unit through a video player. A corresponding script related to the selected video is received through a handheld electrical device. A currently playing time of the selected video is received through the handheld electrical device from the video player. Metadata, which is related to the corresponding script and has a plurality of time stamps, is played through a second display unit of the handheld electrical device according to the currently playing time. During a process that the selected video is played on the first display unit, the handheld electrical device is utilized to re-receive the currently playing time of the selected video from the video player at a preset time interval.
    Type: Application
    Filed: March 20, 2014
    Publication date: June 25, 2015
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Wen-Chieh LEE, Ching-Hsiang LIN, Chiao-Chih CHANG
  • Patent number: 8767808
    Abstract: In a method for processing unsolicited result codes (URCs) of a communication device, keywords of a URC are extracted when the URC is sent from a modem of the communication device to an operating system of the communication device. A digital code of the keywords is obtained by encoding the extracted keywords. A function of the communication device is executed to process the received URC according to the digital code of the keywords.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 1, 2014
    Assignee: Chi Mei Communication Systems, Inc.
    Inventors: Chiao-Chih Chang, Nan-Chun Chu
  • Patent number: 8724034
    Abstract: Apparatuses and methods for scanning channels in a television signal receiver. The apparatuses generally include a first acquisition circuit, a second acquisition circuit, and a controller. The first acquisition circuit is generally configured to determine, during a first time period, whether a selected radio frequency channel has a first format and to produce a first acquisition indicator in response thereto. The second acquisition circuit is generally configured to determine, during a second time period overlapping the first time period, whether the selected radio frequency channel has a second format and to produce a second acquisition indicator in response thereto. The controller is generally configured to scan a plurality of radio frequency channels by operating the first acquisition circuit and the second acquisition circuit for each one of the plurality of radio frequency channels. Embodiments advantageously provides for faster scanning and acquisition of television signals in a mixed-format (e.g.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: May 13, 2014
    Assignee: Mediatek Inc.
    Inventors: Chiao-Chih Chang, Yi-Fu Chen, Ming-Luen Liou
  • Publication number: 20130272192
    Abstract: A wireless communications device is provided with a first cache unit coupled to a memory unit, a wireless communications module, and a hybrid automatic repeat request (HARQ) combine component coupled to the first cache unit. The wireless communications module receives from a cellular network a wireless signal carrying first data corresponding to an HARQ process. The HARQ combine component reads second data corresponding to the HARQ process from the memory unit into the first cache unit, and combines the first data and the second data for an HARQ combining procedure.
    Type: Application
    Filed: January 7, 2011
    Publication date: October 17, 2013
    Inventors: Chiao-Chih Chang, Chia-Ping Chen, Xiaodong Wang
  • Publication number: 20120257658
    Abstract: In a method for processing unsolicited result codes (URCs) of a communication device, keywords of a URC are extracted when the URC is sent from a modem of the communication device to an operating system of the communication device. A digital code of the keywords is obtained by encoding the extracted keywords. A function of the communication device is executed to process the received URC according to the digital code of the keywords.
    Type: Application
    Filed: August 11, 2011
    Publication date: October 11, 2012
    Applicant: Chi Mei Communication Systems, Inc.
    Inventors: CHIAO-CHIH CHANG, NAN-CHUN CHU
  • Patent number: 7760826
    Abstract: An apparatus performs burst noise detection and then reduce the interference of the burst noise by controlling an operation of an adaptive apparatus, such as an equalizer. It includes: an adaptive apparatus having multiple coefficients, processing incoming signals according to these coefficients, and employing an error estimator to update the coefficients; a burst noise detector used to detect a burst noise; and an ON/OFF switching unit used to stop the error estimator from updating the coefficients when the burst noise is detected.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 20, 2010
    Assignee: Mediatek Incorporation
    Inventor: Chiao-Chih Chang