Patents by Inventor Ching-Wen Chang

Ching-Wen 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).

  • LID
    Publication number: 20120097676
    Abstract: A lid of the present invention is used for covering a cup. The cup has a cup body and a rim flange. The rim flange surrounds upper end of the cup body. A groove is defined between the rim flange and the cup body. A horizontal distance H1 is defined between the groove and outer contour of the rim flange. The lid includes a cover plate and an engagement portion. The engagement portion is disposed on periphery of the cover plate. The engagement portion has a barb portion located on its bottom end. A tip end of the barb portion can insert into the groove. A horizontal distance H2 is defined between the tip end and outer contour of the rim flange when the lid covers the cup. The distance H2 is approximately equal to the distance H1. As such, engagement relationship between the lid and the cup is strengthened.
    Type: Application
    Filed: November 10, 2010
    Publication date: April 26, 2012
    Inventor: Ching-Wen CHANG
  • Publication number: 20120080433
    Abstract: A lid assembly of the present invention is used for clipping a rim flange of a cup. The lid assembly includes a lower member and an upper member. The lower member has a top clipping surface and several barbs. The upper member has a bottom clipping surface and at least a barb portion corresponding to the barbs. The barb portion is able to engage with the barbs. As such, the rim flange can be clipped between the top clipping surface and the bottom clipping surface. Therefore, the lid assembly can be firmly assembled on a cup by clipping the rim flange, even though the specification of the cup is slightly changed. Moreover, the lid assembly can not be detached unpredictably.
    Type: Application
    Filed: October 29, 2010
    Publication date: April 5, 2012
    Inventor: Ching-Wen CHANG
  • Publication number: 20120074145
    Abstract: A lid assembly of the present invention is used for clipping a rim flange of a cup. The lid assembly includes a lower member and an upper member. The lower member has a top clipping surface. The upper member has a bottom clipping surface. The upper member is detachably disposed on the lower member. The rim flange is clipped between the top clipping surface and the bottom clipping surface. Therefore, the lid assembly can be firmly assembled on a cup, even though the specification of the cup is slightly changed. Moreover, the lid assembly can not be detached unpredictably.
    Type: Application
    Filed: October 27, 2010
    Publication date: March 29, 2012
    Inventor: Ching-Wen CHANG
  • Publication number: 20120036369
    Abstract: An identification code generation method and a management method for a non-volatile memory, and a controller and a storage system using the same are provided, and the non-volatile memory has a plurality of physical blocks. The identification code generation method includes testing the physical blocks to obtain an availability state of the physical blocks and identifying a plurality of good physical blocks or bad physical blocks among the physical blocks according to the availability state. The identification code generation method also includes generating a memory identification code corresponding to the non-volatile memory according to the good physical blocks or the bad physical blocks. Thereby, in the present invention, a unique memory identification code is generated and is prevented from being stolen.
    Type: Application
    Filed: September 21, 2010
    Publication date: February 9, 2012
    Applicant: PHISON ELECTRONICS CORP.
    Inventor: Ching-Wen Chang
  • Publication number: 20120015121
    Abstract: The method of forming a pigment layer and a foam layer on a substrate includes steps of material preparation, material coating, pigment coating and foaming. A coating material layer is coated on the substrate, and then a pigment layer is coated on the substrate before the coating material layer is foamed. Thus the pigment can be coated on the substrate more easily and more accurately.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventors: Sheng-Su CHANG, Ching-Wen Chang
  • Publication number: 20110305360
    Abstract: An earphone device with a function of sound quality regulation is provided. The earphone includes a housing, a cover, a speaker and a regulating device. The housing has an accommodating space for receiving the speaker and a plurality of regulating holes for connecting the accommodating space to the outside. One end of the regulating device is fixed on the cover. A blocking portion, which is disposed on the other end of the regulating device and extends into the accommodating space, can partially or completely block the regulating holes when the cover is turned, thereby regulating the leakage between the accommodating space and the outside to achieve different output sound quality.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 15, 2011
    Applicant: MERRY ELECTRONICS CO., LTD.
    Inventors: Chiu-Yun Tung, Hui-Yin Liang, Ching-Wen Chang
  • Patent number: 8074079
    Abstract: An anti-attacking method for a private key is provided. The method includes using a plurality of storage areas for storing the same security information. The method also includes selecting one of the storage areas as a currently-used storage area for accessing the security information and synchronously updating the security information stored in the other storage areas while updating the security information stored in the currently-used used storage area when generating a digital signature by using a signature rule and the private key. The method further includes selecting one of the other storage areas as the currently-used storage area for correctly accessing the security information when detecting an attack on the security information stored in the currently-used storage area during generation of the digital signature. Therefore, it is possible to prevent the attacker from stealing the private key.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: December 6, 2011
    Assignee: Phison Electronics Corp.
    Inventor: Ching-Wen Chang
  • Publication number: 20110284564
    Abstract: A disposable cup lid of the present invention includes an engaging portion, a hump portion, a lid surface, and a connection opening. The engaging portion is used for engaging with a cup. At least part of the hump portion is formed annularly inside of the engaging portion. The lid surface is connected to the hump portion. The connection opening is defined on the lid surface, and said connection opening is used to communicate with an interior of the cup. The hump portion is adjacent to the hump portion. A top of the hump portion is higher than the connection opening, and a vertical distance from the top of the hump portion to the connection opening is between 4 to 30 millimeters.
    Type: Application
    Filed: December 1, 2010
    Publication date: November 24, 2011
    Inventors: Ming-Chao Hsieh, Ching-Wen Chang
  • Publication number: 20110247749
    Abstract: A process for coating a foamed coating material on a container or the like mainly includes preparing a coating material by heat blending or kneading a solid thermoplastic binder with a solid thermo-expandable powder consisting of a plurality of solid thermo-expandable microcapsules till the solid thermoplastic binder being gelatinized so that the thermo-expandable microcapsules being uniformly spread in the gelatinized thermoplastic binder, coating such coating material on a surface of a container and then heating the container to foam the coated material. The foamed coating material is therefore provides the container with heat insulation property.
    Type: Application
    Filed: May 18, 2010
    Publication date: October 13, 2011
    Applicant: RICH CUP BIO-CHEMICAL TECHNOLOGY CO., LTD.
    Inventors: CHING-WEN CHANG, HUNG-YING SU
  • Publication number: 20110252191
    Abstract: A method of dynamically switching partitions for a memory card having a plurality of physical blocks is provided. The method includes configuring logical blocks for mapping to at least a portion of the physical blocks and dividing the logical blocks into first and second partitions; coupling the memory card to a host system and setting CSD corresponding to the memory card as a first default value corresponding to the first partition, wherein the host system requests the CSD to obtain the first default value and accesses the first partition according to the first default value; and setting the CSD corresponding to the memory card as a second default value corresponding to the second partition in response to a switch command from the host system, wherein the host system re-requests the CSD to obtain the second default value and accesses the second partition according to the second default value.
    Type: Application
    Filed: May 14, 2010
    Publication date: October 13, 2011
    Applicant: PHISON ELECTRONICS CORP.
    Inventor: Ching-Wen Chang
  • Publication number: 20110191524
    Abstract: A flash memory storage device, a controller thereof, and a programming management method thereof are provide for the flash memory storage device including a flash memory chip, wherein at least a first thread and a second thread are to be implemented within the flash memory storage device. The method includes defining a predetermined programming unit and receiving a first write command sent by a host. The method also includes distributing a control right of the flash memory chip to the first thread if the first write command is determined to be executed by the first thread, and controlling the first thread to release the control right of the flash memory chip after the first thread finishes a programming operation of the predetermined programming unit.
    Type: Application
    Filed: March 22, 2010
    Publication date: August 4, 2011
    Applicant: PHISON ELECTRONICS CORP.
    Inventor: Ching-Wen Chang
  • Publication number: 20110185435
    Abstract: A flash memory storage system having a flash memory controller, a flash memory chip and a smart card chip is provided. The flash memory chip is configured to store security data. The flash memory controller generates a signature corresponding to the security data according to, a private key and the security data with a one-way hash function, and stores the signature into the smart card chip.
    Type: Application
    Filed: March 5, 2010
    Publication date: July 28, 2011
    Applicant: PHISON ELECTRONICS CORP.
    Inventor: Ching-Wen Chang
  • Publication number: 20110156320
    Abstract: Methods for preparing a patterned metal/metal oxide layer by using a solution type precursor or sol-gel precursor are provided and, especially, a method for preparing a patterned carrier transport of a solar cell and a method for preparing biomedical material are provided, which comprise the following steps: (A) providing a substrate, and a mold with designed patterns formed thereon; (B) coating the substrate with a solution of a precursor to form a precursor layer, wherein the precursor is a metal precursor or a metal oxide precursor; (C) pressing the mold together with the precursor layer to transfer the patterns of the mold onto the precursor layer; (D) curing or pre-curing the precursor layer; (E) removing the mold; and (F) conducting an optional post-treatment, if it being demanded, to further modify the properties of precursor layer.
    Type: Application
    Filed: March 23, 2010
    Publication date: June 30, 2011
    Applicant: National Tsing Hua University
    Inventors: Sun-Zen Chen, Wen-Feng Kuo, Ruo-Ying Wu, Yu-Cheng Tzeng, Ching-Wen Chang, Hong-Jum Tan
  • Publication number: 20110152049
    Abstract: A method for making heat-insulated paper containers and the products made by the same. The method includes steps of: (a) mixing and blending polyethylene terephthalate or polypropylene with an adhesive to form a polymer material; (b) heating and extruding the polymer material with an extruder machine to form a film and coating a surface of paper with the film; (c) cooling and laminating the paper with a laminating roller; (d) continuously coating another surface of the paper with a foam material; and then furling the paper after drying; and cutting the paper into a semi-product and then molding into a paper container; (e) heating the foam material with a heating device. The method can enhance the foam uniformity and the production rate, and decrease the defective rate.
    Type: Application
    Filed: October 23, 2008
    Publication date: June 23, 2011
    Inventor: Ching-Wen Chang
  • Publication number: 20110081509
    Abstract: A container of the present invention includes a paper-made container body, a waterproofing layer and a foaming layer. The container body has an outer surface and an inner surface. The waterproofing layer is coated on the inner surface in the manner of casting. The waterproofing layer mainly consists of talcum powder, resin and calcium carbonate. The foaming layer is disposed on at least a part of the outer surface. The foaming layer consists of a hinder and a thermo-expandable powder. The binder is selected from a group consisting of polyvinyl acetate resin, ethylene vinyl acetate resin, polyacrylic acid resin and a mixture thereof. The thermo-expandable powder consists of a plurality of thermo-expandable microcapsules, each of which consists of a thermoplastic polymer shell and a low-boiling-point solvent wrapped by the thermoplastic polymer shell.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Inventor: CHING-WEN CHANG
  • Publication number: 20110070366
    Abstract: A process for manufacturing a heat insulation container mainly includes preparing a coating material by mixing a binder and a thermo-expandable powder, coating such coating material on a surface of a container and then heating the container to foam the coated material. The foamed coating material is therefore provides the container with heat insulation property. The thermo-expandable powder consists of a plurality of thermo-expandable microcapsules, each of which consists of a thermoplastic polymer shell and a low-boiling-point solvent wrapped by the thermoplastic polymer shell. To obtain a smooth surface, the soften point of the binder is required to be lower than the boiling point of the solvent.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 24, 2011
    Applicant: RICH CUP BIO-CHEMICAL TECHNOLOGY CO., LTD
    Inventors: Ching-Wen Chang, Sheng-Shu Chang, Hung-Ying Su
  • Publication number: 20110035602
    Abstract: A data scrambling method for scrambling raw data from a host system is provided. The data scrambling method includes generating a random number and storing the random number into a storage unit. The data scrambling method also includes receiving a user password from the host system, generating a padded value by using a first function unit based on the random number and the user password, and generating a nonce value by using a second function unit based on the padded value and a key. The data scrambling method further includes generating scrambled data corresponding to the raw data by using a third function unit based on the nonce value and the raw data. Accordingly, the raw data of the host system can be effectively protected.
    Type: Application
    Filed: September 23, 2009
    Publication date: February 10, 2011
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Tzu-Yuan Meng, Ching-Wen Chang
  • Publication number: 20110022746
    Abstract: A method of dispatching and transmitting data stream, which is used for a memory storage apparatus having a non-volatile memory module and a smart card chip, is provided. The method includes configuring a plurality of logical block addresses, and a plurality of specific logical block addresses are used for storing a specific file. The method also includes receiving a response data unit from the smart card chip and storing the response data unit in a buffer memory. The method also includes, when a logical block address corresponding to a read command from a host system belongs to one of the specific logical block addresses and the buffer memory stores a response data unit, transmitting the response data unit stored in the buffer memory to the host system. Accordingly, the method can make the host system to correctly receive the response data unit from the smart card chip.
    Type: Application
    Filed: October 1, 2010
    Publication date: January 27, 2011
    Applicant: PHISON ELECTRONICS CORP.
    Inventor: Ching-Wen Chang
  • Publication number: 20110011148
    Abstract: A method for forming a patterned modified metal layer is disclosed, which comprises the following steps: (A) providing a metal base which is in the form of either a bulk metal or a metal coated substrate, and a mold with patterns; (B) applying the mold onto the metal base to transfer the patterns of the mold to the metal surface; (C) removing the mold; and (D) modifying the whole metal base or the, surface and a certain depth beneath the surface of metal base to form a modified metal layer with designated patterns.
    Type: Application
    Filed: September 23, 2009
    Publication date: January 20, 2011
    Applicant: National Tsing Hua University
    Inventors: Sun-Zen Chen, Tai-Bor Wu, Ching-Wen Chang, Wen-Feng Kuo, Ruo-Ying Wu
  • Patent number: 7840745
    Abstract: A data accessing system for interfacing between a smart card and a non-volatile memory is provided. The non-volatile memory has a smart card exclusive area accessible to a plurality of smart card applications. The smart card exclusive area includes a plurality of record unit sets respectively having a plurality of record units. The data accessing system has a buffer for temporarily storing data to be written into the smart card exclusive area and a data accessing protocol unit managing an access parameter table, a plurality of application information tables, and a plurality of record unit set link tables. The smart card applications access the smart card exclusive area in a unit of record unit set, and the size of a record unit set is a multiple of an access unit of the non-volatile memory.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: November 23, 2010
    Assignee: Phison Electronics Corp.
    Inventor: Ching-Wen Chang