Patents by Inventor Chi-Ming Cheng

Chi-Ming Cheng 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: 10027440
    Abstract: A control circuit of a wireless user equipment includes: a PDCP layer computing circuit for reading a PDCP SDU from a PDCP SDU buffer of a memory device of the wireless user equipment, and for generating a ciphered data based on the PDCP SDU; a RLC layer computing circuit for generating a RLC PDU based on the ciphered data; a MAC layer computing circuit for generating a MAC PDU based on the RLC PDU; and a channel encoding circuit for encoding the MAC PDU. The PDCP layer computing circuit directly transmits the ciphered data to the RLC layer computing circuit, the RLC layer computing circuit directly transmits the RLC PDU to the MAC layer computing circuit, and the MAC layer computing circuit directly transmits the MAC PDU to the channel encoding circuit, without buffering above data in any buffering circuit outside the control circuit.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: July 17, 2018
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Chao-Yuan Hsu, Ting-Yu Wei, Chi-Ming Cheng, Chen Chen
  • Patent number: 9887814
    Abstract: A control circuit of a wireless user equipment includes: a message generating circuit configured to operably generate a target RRC (radio resource control) messages to be transmitted to a communication station through a wireless communication circuit of the wireless user equipment, wherein the target RRC message is a predetermined-type RRC message; and a data control circuit coupled with the message generating circuit and configured to operably transmit the target RRC message to the communication station through the wireless communication circuit, and to retransmit the target RRC message to the communication station through the wireless communication circuit at least one more time before a negative acknowledgement (NACK) corresponding to the target RRC message is received by the wireless communication circuit.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 6, 2018
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Chao-Yuan Hsu, Chen Chen, Chi-Ming Cheng, Han-Sheng Hung, Ting-Yu Wei
  • Patent number: 9639271
    Abstract: The present invention discloses a data allocation method. An embodiment of this method comprises: preparing a storage space; allocating some of the storage space as a first current page, a second current page, a first next page, and a second next page; comparing a first data amount with a first spare space of the first current page, and comparing a second data amount with a second spare space of the second current page; storing first data in the first current page if the first spare space is enough for the first data amount, or else storing the first data in the first next page; and storing second data in the second current page if the second spare space is enough for the second data amount, or else storing the second data in the second next page, wherein the storage processes for the first and second data are executed simultaneously.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 2, 2017
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chao-Yuan Hsu, Ting-Yu Wei, Chi-Ming Cheng, Chen Chen
  • Patent number: 9572177
    Abstract: A control circuit of a wireless user equipment includes: a message generating circuit for generating a first and a second RRC (radio resource control) messages, and configuring corresponding first and second priorities; a message reordering circuit for comparing the first and second priorities. If the first priority is higher than the second priority, the message reordering circuit assigns the second RRC message in a message queue to have a transmission order after the first RRC message. Afterward, when the message generating circuit generates a third RRC message, the message generating circuit configures a third priority for the third RRC message. The message reordering circuit compares the first through the third priorities to rearrange transmission orders of RRC messages, and if the third priority is equal to the second priority, the message reordering circuit replaces the second RRC message in the message queue with the third RRC message.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 14, 2017
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Han-Sheng Hung, Chen Chen, Chi-Ming Cheng, Chao-Yuan Hsu, Ting-Yu Wei
  • Publication number: 20160302107
    Abstract: A control circuit of a wireless user equipment includes: a message generating circuit for generating a first and a second RRC (radio resource control) messages, and configuring corresponding first and second priorities; a message reordering circuit for comparing the first and second priorities. If the first priority is higher than the second priority, the message reordering circuit assigns the second RRC message in a message queue to have a transmission order after the first RRC message. Afterward, when the message generating circuit generates a third RRC message, the message generating circuit configures a third priority for the third RRC message. The message reordering circuit compares the first through the third priorities to rearrange the transmission order of RRC messages in the message queue.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 13, 2016
    Applicant: Realtek Semiconductor Corp.
    Inventors: Han-Sheng HUNG, Chen CHEN, Chi-Ming CHENG, Chao-Yuan HSU, Ting-Yu WEI
  • Publication number: 20160302222
    Abstract: A control circuit of a wireless user equipment includes: a message generating circuit for generating a first and a second RRC (radio resource control) messages, and configuring corresponding first and second priorities; a message reordering circuit for comparing the first and second priorities. If the first priority is higher than the second priority, the message reordering circuit assigns the second RRC message in a message queue to have a transmission order after the first RRC message. Afterward, when the message generating circuit generates a third RRC message, the message generating circuit configures a third priority for the third RRC message. The message reordering circuit compares the first through the third priorities to rearrange transmission orders of RRC messages, and if the third priority is equal to the second priority, the message reordering circuit replaces the second RRC message in the message queue with the third RRC message.
    Type: Application
    Filed: March 24, 2016
    Publication date: October 13, 2016
    Applicant: Realtek Semiconductor Corp.
    Inventors: Han-Sheng HUNG, Chen CHEN, Chi-Ming CHENG, Chao-Yuan HSU, Ting-Yu WEI
  • Publication number: 20160285592
    Abstract: A control circuit of a wireless user equipment includes: a message generating circuit configured to operably generate a target RRC (radio resource control) messages to be transmitted to a communication station through a wireless communication circuit of the wireless user equipment, wherein the target RRC message is a predetermined-type RRC message; and a data control circuit coupled with the message generating circuit and configured to operably transmit the target RRC message to the communication station through the wireless communication circuit, and to retransmit the target RRC message to the communication station through the wireless communication circuit at least one more time before a negative acknowledgement (NACK) corresponding to the target RRC message is received by the wireless communication circuit.
    Type: Application
    Filed: December 17, 2015
    Publication date: September 29, 2016
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Chao-Yuan HSU, Chen CHEN, Chi-Ming CHENG, Han-Sheng HUNG, Ting-Yu WEI
  • Publication number: 20160286402
    Abstract: A control circuit of a wireless user equipment includes: a PDCP layer computing circuit for reading a PDCP SDU from a PDCP SDU buffer of a memory device of the wireless user equipment, and for generating a ciphered data based on the PDCP SDU; a RLC layer computing circuit for generating a RLC PDU based on the ciphered data; a MAC layer computing circuit for generating a MAC PDU based on the RLC PDU; and a channel encoding circuit for encoding the MAC PDU. The PDCP layer computing circuit directly transmits the ciphered data to the RLC layer computing circuit, the RLC layer computing circuit directly transmits the RLC PDU to the MAC layer computing circuit, and the MAC layer computing circuit directly transmits the MAC PDU to the channel encoding circuit, without buffering above data in any buffering circuit outside the control circuit.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 29, 2016
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chao-Yuan HSU, Ting-Yu WEI, Chi-Ming CHENG, Chen CHEN
  • Publication number: 20160103614
    Abstract: The present invention discloses a data allocation method. An embodiment of this method comprises: preparing a storage space; allocating some of the storage space as a first current page, a second current page, a first next page, and a second next page; comparing a first data amount with a first spare space of the first current page, and comparing a second data amount with a second spare space of the second current page; storing first data in the first current page if the first spare space is enough for the first data amount, or else storing the first data in the first next page; and storing second data in the second current page if the second spare space is enough for the second data amount, or else storing the second data in the second next page, wherein the storage processes for the first and second data are executed simultaneously.
    Type: Application
    Filed: September 2, 2015
    Publication date: April 14, 2016
    Inventors: CHAO-YUAN HSU, TING-YU WEI, CHI-MING CHENG, CHEN CHEN
  • Patent number: 7438947
    Abstract: A process for fabricating a color filter. An imprint mask accompanied by a dry etching step is used to replace the conventional wet development process. The present invention attains the advantages of increased pattern uniformity of color elements, improved film flatness of color elements, increased resolution, reduced process time, reduced process cost, and elimination of the use of developing solvent to reduce waste treatment and environmental impact.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: October 21, 2008
    Assignee: TPO Displays Corp.
    Inventors: Tan-Ching Yen, Chi-Ming Cheng, Kuang-Lung Kuo
  • Patent number: 7345721
    Abstract: A color filter including red, green, and blue resists in three subpixel regions in each pixel region is disclosed. One pixel region includes two kinds of color resists, and the color resist in the reflective region has lower purity than the color resist in the transmissive region. Another pixel region includes only one kind of color resist.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: March 18, 2008
    Assignee: TPO Displays Corp.
    Inventors: Dai-Liang Ting, Chi-Jain Wen, Chi-Ming Cheng, Kuang-Lung Kuo, Hsiang-Ju Chuang, Chia-Yi Tsai
  • Publication number: 20070148950
    Abstract: A bonding method of an object having at least one pad on a surface of the object includes the steps of: putting a mask on the object, when the mask has at least one pattern corresponding to the pad; and printing to form a solder ball on the pad by a printing method.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 28, 2007
    Inventors: Chi-Ming Cheng, Zheng-Ping Lan
  • Publication number: 20070054149
    Abstract: A substrate assembly of a display device and a method of manufacturing the same are disclosed. The substrate assembly includes a transparent substrate, an optical wavelength conversion layer and an inorganic covering layer. The optical wavelength conversion layer is formed on the transparent substrate. The inorganic covering layer is covered on the optical wavelength conversion layer. Moreover, the substrate assembly is used to support an organic emission element. Whereby the substrate assembly and the organic emission element are assembled together to form a display device. Furthermore, the substrate assembly further includes an inorganic barrier layer formed on the optical wavelength conversion layer and/or on the inorganic covering layer for preventing the organic emission element from being damaged by the moistures or the outgas produced from the optical wavelength conversion layer during heating process.
    Type: Application
    Filed: August 23, 2005
    Publication date: March 8, 2007
    Inventors: Chi-Ming Cheng, Chien-Chih Chiang
  • Patent number: 7186350
    Abstract: A method for removing color resist from an exposure alignment mark. In an embodiment, a color resist layer is formed over a color filter substrate with an alignment mark thereon. A concentric tube system is provided with an outer tube surrounding an inner tube. A solvent is injected via the inner tube to contact and dissolve the color resist directly overlying the alignment mark. The dissolved color resist is extracted by the outer tube of the concentric tube system to expose the alignment mark. By repeating the dissolving and extraction steps, all alignment marks on the color filter substrate are consequently uncovered for subsequent exposure alignment.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: March 6, 2007
    Assignee: TPO Displays Corp.
    Inventor: Chi-Ming Cheng
  • Publication number: 20060208633
    Abstract: An organic electroluminescent device with improved lifetime and a method of fabricating the same are provided. The device comprises a barrier layer on an upper surface of a color filter, and etching and removing part of the barrier layer uncovered by first electrodes to form moistness removed channel after defining and forming at least one first electrode on an upper surface of the barrier layer. It is convenient to bake and eliminate a solvent or mist existed in the color filter in a baking process, thereby reducing speed of going bad of the organic light emitting layer and effectively improving lifetime of the organic electroluminescent device.
    Type: Application
    Filed: November 10, 2005
    Publication date: September 21, 2006
    Inventors: Chi-Ming Cheng, Chih-Hung Yeh, Hui-Chang Yu, Wei-Wen Yang, Chin Chung Chang Chien
  • Publication number: 20060119770
    Abstract: A color filter including red, green, and blue resists in three subpixel regions in each pixel region is disclosed. One pixel region includes two kinds of color resists, and the color resist in the reflective region has lower purity than the color resist in the transmissive region. Another pixel region includes only one kind of color resist.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 8, 2006
    Inventors: Dai-Liang Ting, Chi-Jain Wen, Chi-Ming Cheng, Kuang-Lung Kuo, Hsiang-Ju Chuang, Chia-Yi Tsai
  • Publication number: 20060114377
    Abstract: A process for fabricating a color filter. An imprint mask accompanied by a dry etching step is used to replace the conventional wet development process. The present invention attains the advantages of increased pattern uniformity of color elements, improved film flatness of color elements, increased resolution, reduced process time, reduced process cost, and elimination of the use of developing solvent to reduce waste treatment and environmental impact.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Tan-Ching Yen, Chi-Ming Cheng, Kuang-Lung Kuo
  • Publication number: 20060023145
    Abstract: A transflective liquid crystal display includes a plurality of pixel regions, each pixel region including three subpixel regions with different colors. At least one subpixel region includes a first substrate including a transmissive region and a reflective region; a second substrate disposed on the first substrate; liquid crystal interposed between the first and second substrates; and a color filter formed below the second substrate and including first and second color resists. The whole or most of the first color resist is in the reflective region and the whole or most of the second color resist is in the transmissive region, such that when shifting occurs due to assembly error, the area of the second color resist in the transmissive region remains unchanged. By means of the transflective LCD of the present invention, the chromaticity in the reflective and transmissive regions will reach the target value.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Dai-Liang Ting, Chi-Jain Wen, Chi-Ming Cheng, Kuang-Lung Kuo, Hsiang-Ju Chuang, Chia-Yi Tsai
  • Publication number: 20050053852
    Abstract: A method of fabricating a color filter substrate for a transflective LCD panel. A color filter is formed on a substrate with pre-defined reflective and transmissive areas, comprising a color filter layer having opening portions. A flat layer is formed to cover the color filter and fill the opening portions. The flat layer and the color filter are planarized (e.g., by polishing) to provide a flat surface. Subsequent processing may include an electrode layer formed on the surface of the color filter to complete the color filter substrate.
    Type: Application
    Filed: February 6, 2004
    Publication date: March 10, 2005
    Inventor: Chi-Ming Cheng
  • Patent number: D836951
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 1, 2019
    Inventor: Chi-Ming Cheng