Patents by Inventor Chi-Chen Lee

Chi-Chen 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).

  • Patent number: 8467813
    Abstract: A communication apparatus is provided. A processor is coupled to a transceiver and includes at least a first processor logic unit for initiating a cell selection or a cell reselection procedure to camp on a target cell and obtain a plurality of paging parameters carried in one or more system information messages transmitted by the target cell via the transceiver and a second processor logic unit for monitoring a paging identifier on a downlink control channel via the transceiver to check whether there is any forthcoming paging message before the paging parameters are obtained from the target cell.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: June 18, 2013
    Assignee: Mediatek Inc.
    Inventors: Chi-Chen Lee, Yi-Chun Wei, Meng-Shiang Lin
  • Publication number: 20120250673
    Abstract: An apparatus (and related method) coordinates wireless communication operations for coexisted wireless communication modules. The apparatus includes a packet traffic arbitration (PTA) module coupled between a first wireless communication module and a second wireless communication module, granting the first request requesting for a first wireless communication operation with a first priority in a first time period from the first wireless communication module, receiving a second request requesting for a second wireless communication operation with a second priority from the second wireless communication module when the granted first wireless communication operation is not finished. In operation, the first wireless communication operation interferes with the second wireless communication operation, the PTA module granting the second request and informing the first wireless communication module to take back the granted first request when the second priority is higher than the first priority.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 4, 2012
    Applicant: MediaTek Inc.
    Inventors: Li-Chun KO, Hong-Kai HSU, Chi-Chen LEE, Jiun Jang SU
  • Patent number: 8223693
    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: Grant
    Filed: June 23, 2009
    Date of Patent: July 17, 2012
    Assignee: Mediatek Inc.
    Inventors: Li-Chun Ko, Hong-Kai Hsu, Chi-Chen Lee, Jiun Jang Su
  • Patent number: 8138425
    Abstract: A touch panel and a fabricating method thereof are provided. The touch panel includes: a substrate; a first conductive layer configured on the substrate and having a first and a second portions; an insulating layer covering the first portion; and a second conductive layer having a third portion configured on the second portion, and a fourth portion configured on the insulating layer and being separate from the third portion. The fabricating method includes the steps of: providing a first conductive layer; forming an insulating layer partially covering the first conductive layer; and forming a second conductive layer having a first pattern coupled to the first conductive layer and a second pattern insulated from the first pattern on the insulating layer.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 20, 2012
    Assignee: Arima Display Corporation
    Inventors: Chi-Chen Lee, Fu-Chen Huang, Hsin-Min Chen, Shih-Min Wu
  • 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: 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: 20110134746
    Abstract: A method of reducing interference between two communication systems operating in adjacent frequency bands and coexisting in a communication device is provided, and the two communication systems are a first communication system using TDD and a second communication system which is content-based. The method includes deciding whether to perform an arbitration procedure on a downlink subframe of the first communication system according to a CINR of the first communication system and a RSSI of the second communication system; deciding whether to perform the arbitration procedure on an uplink subframe of the first communication system according to a transmit power of the first communication system and a RSSI value of the second communication system; and when deciding to perform the arbitration procedure on the downlink or uplink subframe, further deciding whether to send a specific packet to request one or more stations not to send packets to the second communication system.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 9, 2011
    Inventors: Tai-Cheng Liu, Chi-Chen Lee, Ming-Chun Cheng, Chun-Jen Tsai, Chia-Ming Chang, Ching-Hwa Yu
  • 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: 20110005818
    Abstract: A touch panel and a fabricating method thereof are provided. The touch panel includes: a substrate; a first conductive layer configured on the substrate and having a first and a second portions; an insulating layer covering the first portion; and a second conductive layer having a third portion configured on the second portion, and a fourth portion configured on the insulating layer and being separate from the third portion. The fabricating method includes the steps of: providing a first conductive layer; forming an insulating layer partially covering the first conductive layer; and forming a second conductive layer having a first pattern coupled to the first conductive layer and a second pattern insulated from the first pattern on the insulating layer.
    Type: Application
    Filed: December 15, 2009
    Publication date: January 13, 2011
    Applicant: ARIMA DISPLAY CORPORATION
    Inventors: Chi-Chen LEE, Fu-Chen HUANG, Hsin-Min CHEN, Shih-Min WU
  • Publication number: 20110007719
    Abstract: A method for setting an uplink transmission timing of a wireless communication apparatus, comprises: acquiring an initial uplink transmission advance timing by an initial ranging procedure during the wireless communication apparatus being served by SBS; receiving a downlink preamble signal from SBS; determining the downlink preamble signal receiving time at the wireless communication apparatus; and, setting an uplink transmission timing for the wireless communication apparatus according to the acquired initial uplink transmission advance timing and the downlink preamble signal receiving time.
    Type: Application
    Filed: November 20, 2009
    Publication date: January 13, 2011
    Inventor: Chi-Chen Lee
  • 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: 20100061326
    Abstract: A communications apparatus is provided. A first radio module provides a first wireless communications service and communicates with a first communications device in compliance with a first protocol. A second radio module provides a second wireless communications service and communicates with a second communications device in compliance with a second protocol. A Co-Located Coexistence radio manager detects activities of the first radio modules, obtains a first traffic pattern describing downlink and/or uplink traffic allocations of the first radio module from the first radio module, and generates a second traffic pattern of the second radio module according to the first traffic pattern to coordinate operations of the first and second radio modules. The second traffic pattern describes recommended downlink and/or uplink traffic allocations to a plurality of sub-frames for the second radio module, and each sub-frame defined by the second protocol includes Orthogonal Frequency Division Multiplexing symbols.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 11, 2010
    Applicant: MEDIATEK INC.
    Inventors: Chi-Chen Lee, I-Kang Fu, Li-Chun Ko, Hong-Kai Hsu, Chih-Hao Yeh, Jiun-Jang Su
  • Publication number: 20090276629
    Abstract: A mobile station is provided. The mobile station includes one or more radio transceiver module and a processor. The processor generates an Authorization Key (AK) context including at least one secret key shared with a base station, transmits at least one association negotiation message via the radio transceiver module to the base station to obtain an association of a service flow established by the base station, and generates at least one TEK according to the secret key and an identifier associated with the association. The service flow is established for traffic data transmission with the base station and the TEK is a secret key shared with the base station for encrypting and decrypting the traffic data.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 5, 2009
    Applicant: MEDIATEK INC.
    Inventors: Lin-Yi Wu, Chi-Chen Lee
  • Publication number: 20090274302
    Abstract: A mobile station is provided. The mobile station includes one or more radio transceiver module and a processor. The processor performs a handover negotiation procedure with a serving base station so as to handover communication services to a target base station by transmitting and receiving a plurality of handover negotiation messages via the radio transceiver module, and generates an Authorization Key (AK) context and derives at least one Traffic Encryption Key (TEK) for the target base station. The AK context includes a plurality of keys shared with the target base station for encrypting messages to be transmitted to the target base station, and the TEK is a secret key shared with the target base station for encrypting traffic data.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 5, 2009
    Applicant: MEDIATEK INC.
    Inventors: Lin-Yi Wu, Chi-Chen Lee, I-Kang Fu
  • Publication number: 20090176494
    Abstract: The behavior of an MS and Serving BS is clarified in a situation where a handover message, such as a handover request message or an indication message, is lost. By setting a timer and an acknowledgement of the handover message, a handover control process is capable of detecting the loss of the handover message. When the loss is detected, the MS or the Serving BS can resend the lost message or perform some repairing steps to avoid asynchronous states of the MS and the Serving BS.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 9, 2009
    Inventors: Chi-Chen Lee, Tsai-Pao Lee
  • Publication number: 20090166873
    Abstract: The interconnecting structure for a semiconductor die includes a die having bonding pads on an active surface; a core attached the side wall (edge) of the die by adhesion material; an isolating base adhered on the active surface of the die by adhesion glue; a through silicon via (TSV) open from the back side of the die to expose the bonding pads; a build up layer coupled between the bonding pads to terminal metal pads by the through silicon via; solder balls melted on terminal pads, wherein the terminal pads located on the core and/or the die.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Inventors: Wen-Kun Yang, Jui-Hsien Chang, Chi-Chen Lee, Mon-Chin Tsai
  • Publication number: 20090008729
    Abstract: The present invention discloses a structure of image sensor package utilizing a removable protection film. The structure comprises a substrate with a die receiving cavity and inter-connecting through holes. Terminal pads are formed under the inter-connecting through holes and metal pads are formed on an upper surface of the substrate. A die is disposed within the die receiving cavity by an adhesion material. Bonding pads are formed on the upper edge of the die. Bonding wires are coupled to the metal pads and the bonding pads. A protection layer is formed on the micro lens area to protect the micro lens from particle contamination. A removable protection film is formed over the protection layer to protect the micro lens from water, oil, dust or temporary impact during the packaging and assembling process.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Inventors: Wen-Kun Yang, Jui-Hsien Chang, Chi-Chen Lee, Wen-Ping Yang
  • Publication number: 20080308307
    Abstract: A trace structure with a particular profile to eliminate stress concentration and the fabricating method thereof are provided. The trace structure includes a conductive line, a seed layer, and a protection layer, wherein an upper part of the trace line is covered by the protection layer to prevent sharp edges caused by over etching in the fabrication of the conductive line. Hence, the stress concentration due to the sharp edges in the trace structure is diminished and the reliability of packaging structures or other devices applying the trace structure is assured.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Applicant: ADVANCED CHIP ENGINEERING TECHNOLOGY INC.
    Inventors: Jui-Hsien Chang, Chi-Chen Lee, Dyi-Chung Hu
  • Publication number: 20080159224
    Abstract: A subscriber of wireless system and the operation method thereof are disclosed. The subscriber includes a buffer, a scheduler, a modem, an MAP decoder, a bandwidth allocator and a PDU constructor. The buffer receives the output data from the upper layer unit thereof. The scheduler is coupled to the buffer and schedules each connection data in the buffer prior to decoding the MAP. The modem provides a signal modulation/demodulation interface. The MAP decoder is coupled to the modem. The bandwidth allocator is coupled to the MAP decoder and allocates a bandwidth to each connection according to the result of decoding the MAP. The PDU constructor is respectively coupled to the bandwidth allocator, the buffer and the modem, so that the PDU constructor reads out the data of each connection to build a data burst according to the bandwidth allocation result of each connection.
    Type: Application
    Filed: May 8, 2007
    Publication date: July 3, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jhe-Ming Hsu, Yu-Ren Yang, Chi-Chen Lee, Yu-Min Chiu