Patents by Inventor Hong-Kai Hsu

Hong-Kai 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).

  • Patent number: 8156486
    Abstract: A patching device and method thereof for patching a firmware function by a patch function. When a fetch address from a processor does not correspond to the firmware function, the patching device outputs an instruction of the fetch address to respond to the processor. When the fetch address corresponds to the replaced firmware function, the patching device outputs an artificial instruction to respond to the processor. The artificial instruction is one of series of machine codes corresponding to a plurality of patch intermediary instructions utilized to direct the processor to jump to the beginning address of the patch function.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: April 10, 2012
    Assignee: Mediatek Inc.
    Inventors: Hong-Kai Hsu, Ting-Cheng Hsu, Wei-Lun Wan
  • Patent number: 8140877
    Abstract: An apparatus is provided, for reducing power consumption in a system operating in a power saving mode, comprising a controller, an oscillator circuit and a voltage regulator. The controller provides a first control signal and a second control signal. The oscillator circuit, connected to the controller, wherein the controller controls the oscillator circuit according to the second control signal. The voltage regulator providing electric power to the oscillator circuit, connected to the controller, wherein the controller controls the voltage regulator according to the first control signal.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 20, 2012
    Assignee: Mediatek Inc.
    Inventors: Hong-Kai Hsu, Ching-An Chung
  • Publication number: 20110310741
    Abstract: The invention provides a mobile communication device having a Packet Traffic Arbitrator (PTA) module and a first wireless communication module, coupled to the PTA module via only one wire and configured to perform a first wireless transceiving. The first wireless communication module sends a first request indicating a remaining period of time for a second wireless communication module to use to the PTA module via the wire, and receives, via the wire, a first response indicating whether the first request has been accepted.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: MEDIATEK INC.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, I-Lin Hsieh, Jwo-An Lin, I-Kang Fu, Huanchun Ye
  • Publication number: 20110312288
    Abstract: A wireless device having a central control entity that coordinates multiple radio transceivers co-located within the same device platform to mitigate coexistence interference. The wireless device comprises an LTE transceiver, a WiFi transceiver, a BT transceiver, or a GNSS receiver. In one embodiment, the central control entity receives radio signal information from the transceivers and determines control information. The control information is used to trigger FDM solution such that the transceivers operate in designated frequency channels to mitigate co-existence interference. In another embodiment, the central control entity receives traffic and scheduling information from the transceivers and determines control information. The control information is used to trigger TDM solution such that the transceivers are scheduled for transmitting or receiving radio signals over specific time duration to mitigate co-existence interference.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Inventors: I-Kang Fu, Li-Chun Ko, Chi-Chen Lee, Huanchun Ye, Hong-Kai Hsu, Willaim Plumb
  • Publication number: 20110274080
    Abstract: A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 10, 2011
    Applicant: MEDIATEK INC.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, I-Kang Fu, Chi-Chen Lee
  • Publication number: 20110255414
    Abstract: A communication apparatus is provided. The communication apparatus includes an RF module, a down converter coupled to the RF module and a detector coupled to the down converter. The RF module receives an RF signal. The down converter down converts the RF signal in response to a channel select signal to generate a converted signal, wherein the channel select signal controls the down converter to alternately sweep a plurality of scan trains during a scan frame, and each of the scan trains comprises a plurality of channels. The power detector determines whether the RF signal comprises an ID packet according to the converted signal corresponding to the channels of the plurality of scan trains.
    Type: Application
    Filed: January 17, 2011
    Publication date: October 20, 2011
    Applicant: MEDIATEK INC.
    Inventors: Yuan Chen, Ting-Che Tseng, Wen-Ying Chien, Wei-Lun Wan, Wei-Kun Su, Hong-Kai Hsu
  • Publication number: 20110235621
    Abstract: A mobile communications device is provided. A first radio module communicates with a communications device in compliance with a first protocol. A second radio module communicates with a base station in compliance with a second protocol. A CLC radio manager receives a traffic pattern from the first radio module indicating a first traffic allocation for the first radio module, obtains timing information of the base station, obtains a native reference clock from a clock source, converts values of the traffic pattern into the native reference clock counts, aligns the converted traffic pattern with the timing information of the base station, generates one or more CLC bitmaps for the first radio module by converting the aligned traffic pattern into a plurality of WiMAX frames or sub-frames of the timing information, and transmits the generated CLC bitmaps to the base station to recommend a second traffic allocation of the frames or sub-frames.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Applicant: MEDIATEK INC.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, Chi-Chen Lee, I-Kang Fu, Jiun-Jang Su
  • Publication number: 20110097998
    Abstract: A method of scheduling transmitting and receiving communication slots for co-located radio devices is provided. A Bluetooth (BT) device first synchronizes its communication time slots with a co-located radio module, and then obtains the traffic pattern of the co-located radio module. Based on the traffic pattern, the BT device selectively skips one or more TX or RX time slots to avoid data transmission or reception in certain time slots and thereby reducing interference with the co-located radio module. In addition, the BT device generates a co-located coexistence (CLC) bitmap and transmits the CLC bitmap to its peer BT device such that the peer BT device can also skip data transmission or reception in certain time slots affected by the co-located radio module. The skipped time slots are disabled for TX or RX operation to prevent interference and to achieve more energy saving.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 28, 2011
    Inventors: Li-Chun Ko, Hong-Kai Hsu, I-Kang Fu, Chi-Chen Lee
  • Publication number: 20110096758
    Abstract: A method for enhancing throughput of a Wireless Local Area Network (WLAN) module collocated with a Bluetooth (BT) slave module includes: detecting whether timing critical data of the BT slave module exists; and allowing the WLAN module to perform wireless communication when it is detected that no timing critical data of the BT slave module exists. An associated wireless communication apparatus includes: a BT slave module; a WLAN module collocated with the BT slave module; and a controller arranged to control operations of the BT slave module and the WLAN module, wherein the controller detects whether timing critical data of the BT slave module exists, and allows the WLAN module to perform wireless communication when it is detected that no timing critical data of the BT slave module exists. An associated wireless communication module such as the BT slave module is further provided.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 28, 2011
    Inventors: Li-Chun Ko, Chih-Hao Yeh, Hong-Kai Hsu, Shun-Yong Huang
  • Patent number: 7924795
    Abstract: The invention provides a method for operating an apparatus capable of Bluetooth and Wireless Local Area Network (WLAN)/WiMAX communications. In one embodiment, the apparatus comprises a Bluetooth module, and a WLAN/WiMAX unit comprising a packet traffic arbitration (PTA) module, and a WLAN/WiMAX module. The Bluetooth module sends a request for Bluetooth signal transceiving to be performed in a Bluetooth time slot to the WLAN/WiMAX unit, wherein the request comprises a length information about length of a transceiving time period for Bluetooth signal transceiving. The Bluetooth module then performs an Bluetooth signal transceiving during the transceiving time period of the Bluetooth time slot after the WLAN/WiMAX unit grants the request. The WLAN/WiMAX unit then performs an WLAN/WiMAX signal transceiving during a residual time period of the Bluetooth time slot in response to the length information.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: April 12, 2011
    Assignee: Mediatek Inc.
    Inventors: Wei-Lun Wan, Hong-Kai Hsu, Chung-Shine Huang, Ying-Chi Kuo, Jiun-Jang Su
  • Publication number: 20110076945
    Abstract: A wireless communications module coexisting with a wireless telephony communications module includes a radio frequency (RF) module, a MODEM, a clock generator and distributor and a system control logic. The system control logic issues an external interrupt (EINT) signal to the wireless telephony communications module for activating a clock source via the wireless telephony communications module. When the clock source is activated, the clock generator and distributor receives a reference clock from the activated clock source, converts the reference clock into one or more internal clocks and drives the internal clock or clocks to the RF module and the MODEM for synchronization therebetween.
    Type: Application
    Filed: July 27, 2010
    Publication date: March 31, 2011
    Applicant: MEDIATEK INC.
    Inventors: Liang-Cheng Chang, Ming-Jie Yang, Wei-Lun Wan, Juei-Ting Sun, Hong-Kai Hsu, Wei-Ning Chien
  • Publication number: 20110075778
    Abstract: A communications apparatus is provided. A first wireless communications module provides a first wireless communications service and communicates with a first communications device in compliance with a first protocol. A second wireless communications module provides a second wireless communications service and communicates with a second communications device in compliance with a second protocol. A clock source is shared by the first and the second communications modules and provides a reference clock to the first and the second communications modules. The first wireless communications module detects a request from the second wireless communications module for activating the clock source, determines whether the reference clock has been stably generated by the clock source, and adjusts an electrical characteristic of the clock source to facilitate the reference clock output from the clock source to achieve a target frequency when the reference clock has not been stably generated.
    Type: Application
    Filed: March 8, 2010
    Publication date: March 31, 2011
    Applicant: MEDIATEK INC.
    Inventors: Liang-Cheng Chang, Ming-Jie Yang, Wei-Lun Wan, Juei-Ting Sun, Hong-Kai Hsu, Wei-Ning Chien
  • Publication number: 20110053523
    Abstract: A wireless communications system is provided with a first wireless communications module, a second wireless communications module, and an RF module. The first wireless communications module transmits or receives a first wireless signal, and the second wireless communications module transmits or receives a second wireless signal. The RF module allocates a first transceiving path and a second transceiving path to the first wireless communications module and the second wireless communications module, respectively, to enable the transmission or reception of the first wireless signal and the second wireless signal at the same time.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 3, 2011
    Applicant: MEDIATEK INC.
    Inventors: Chih-Hao Yeh, Hong-Kai Hsu, En-Chieh Hsia, Hsien-Chyi Chiou, Wei Wang, Shu-Ping Shiu
  • Publication number: 20110007675
    Abstract: A system for the coexistence between a plurality of wireless communication modules sharing a single antenna is provided, including an antenna, first and second transceiving paths, and first and second wireless communications modules. The first transceiving path is coupled to the antenna. The second transceiving path is coupled to the first transceiving path. The first wireless communications module is coupled to the first transceiving path and transmits or receives a plurality of first wireless signals. The second wireless communications module is coupled to the second transceiving path and transmits or receives a plurality of second wireless signals, wherein signal strengths of the second wireless signals passing through the second transceiving path are attenuated by a certain level, and the attenuated second wireless signals are added to the first wireless signals when passing through the first transceiving path.
    Type: Application
    Filed: January 29, 2010
    Publication date: January 13, 2011
    Applicant: MEDIATEK INC.
    Inventors: Hsien-Chyi Chiou, Shu-Ping Shiu, Hong-Kai Hsu, Yuan-Hung Chung, Wei Wang, Ren-Yuh Liang
  • Publication number: 20110009060
    Abstract: A wireless communications system is provided with a first wireless communications and a second wireless communications. The first wireless communications module transmits or receives a first wireless signal in a first frequency band selected from a first frequency range. The second wireless communications module transmits or receives a second wireless signal in a second frequency band selected from a second frequency range, and adjusts a transmission power of the second wireless signal in response to that a frequency offset between the first frequency band and the second frequency band falls within a predetermined range.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 13, 2011
    Applicant: MEDIATEK INC.
    Inventors: Hong-Kai Hsu, Li-Chun Ko, Chia-Ming Chang, Chih-Hao Yeh, En-Chieh Hsia, I-Lin Hsieh, Wen-Ying Chien, Jwo-An Lin, Ting-Che Tseng, Yuan Chen
  • Publication number: 20110009074
    Abstract: A system for the coexistence between a plurality of wireless communications modules sharing single antenna is provided. A wireless communications chipset includes a first wireless communications module configured to transmit or receive first wireless communications signals, and a second wireless communications module configured to transmit or receive second wireless communications signals. A path selection circuit is configured to connect the first wireless communications module to the antenna via a first transceiving path or a second transceiving path for transmitting and receiving the first wireless signals according to transceiving statuses of the first wireless signals and the second wireless signals.
    Type: Application
    Filed: November 25, 2009
    Publication date: January 13, 2011
    Applicant: MEDIATEK INC.
    Inventors: Hong-Kai Hsu, Yuan-Hung Chung, Hsien-Chyi Chiou, Wei Wang, Wen-Ying Chien, Jwo-An Lin, I-Lin Hsieh
  • Publication number: 20100322159
    Abstract: An apparatus includes a first and a second wireless communication modules and a packet traffic arbitration (PTA) module. The first wireless communication module issues a first request for a first transmission or reception operation in a first time period, wherein the first request includes information regarding a first power level for performing the first TX or RX operation. The second wireless communication module issues a second request for a second TX or RX operation in a second time period, wherein the second request includes information regarding a second power level for performing the second TX or RX operation. The packet traffic arbitration module receives the first request and the second request, and grants one or both of the first request and the second request according to the first power level and the second power level when the first time period is overlapped with the second time period.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 23, 2010
    Applicant: MEDIATEK INC.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, Chi-Chen Lee, Jiun Jang Su
  • Publication number: 20100311339
    Abstract: A system for the coexistence between wireless communication modules sharing an antenna is disclosed. A wireless communication chipset includes a first wireless communication module capable of transmitting and receiving first wireless communication signals, a second wireless communication module capable of transmitting and receiving second wireless communication signals and a combine-separate unit capable of generating a first combined signal and separating a second combined signal. The switching device is configured to selectively transmit the first combined signal or receive the second combined signal. The connection device has a first port coupled to an antenna, a second port connected to the first port for transmitting the first combined signal or receiving the second combined signal, and a third port connected to the first port for transmitting or receiving the second wireless communication signals via the second path and the antenna.
    Type: Application
    Filed: January 13, 2010
    Publication date: December 9, 2010
    Applicant: MEDIATEK INC.
    Inventors: Yuan-Hung Chung, Hong-Kai Hsu
  • Patent number: 7813760
    Abstract: A method of controlling a communication mechanism utilized to arbitrate transmissions of a first and a second wireless signals and a communication apparatus utilized the method are disclosed. The method includes determining a transmission quality indicator corresponding to one of the first wireless signal and the second wireless signal, and dynamically turning the communication mechanism on or off according to the transmission quality indicator. Therefore, the present invention is able to arbitrate transmissions of different wireless signals while decreasing the occurrence of transmission disconnection resulted from the arbitration.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 12, 2010
    Assignee: Mediatek Inc.
    Inventors: Hong-Kai Hsu, Hsien-Chang Liu
  • Patent number: 7733938
    Abstract: An embodiment of an apparatus for channel assessment is provided, comprising a radio frequency (RF) unit, a baseband unit and a microprocessor control unit (MCU). The baseband unit coupling to the RF unit directs the RF unit to selectively hop into one of a plurality of available channels in a frequency band using a pseudorandom sequence to receive a plurality of packets via the hopped channel. The MCU coupling to the baseband unit accumulates a measure for the hopped channel according to reception results of the packets and marks the hopped channel as a bad channel when the accumulated measure exceeds a predetermined threshold. The measure represents the inaccuracy extent during packet reception via the hopped channel.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 8, 2010
    Assignee: Mediatek Inc.
    Inventors: Shun-Pin Yang, Hong-Kai Hsu, Chung-Shine Huang, Liang-Cheng Chang