Patents by Inventor Ling Zhang

Ling Zhang 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: 20040250270
    Abstract: An optical disc driver includes a tray (20) and a driver housing (30). A locating cylinder (328) is formed at a rear of the driver housing. A through slot (329) is defined vertically in the middle of the locating cylinder, and divides the locating cylinder into two parts. A locating slot (228) is defined at a rear end of the tray, and an opening (229) is defined between a rear edge of the tray and the locating slot. The width of the opening is wider than that of the locating slot, and the opening broadens as it nears the rear edge of the tray, allowing the locating cylinder to be easily received and guided into the locating slot. This arrangement allows the tray to be firmly positioned in the driver housing.
    Type: Application
    Filed: June 3, 2004
    Publication date: December 9, 2004
    Inventor: Xiao-Ling Zhang
  • Publication number: 20040231876
    Abstract: An optical disc driver enclosure (10) includes a first cover (20) and a second cover (30). The first cover has a bottom plate and two first side plates (22). A locating plate (24) extends inwardly from a front upper edge of each first side plate, and two protrusion plates (26) are formed on an upper edge of each first side plate. The second cover has a top plate (31) and two second side plates (32). A locating slot (34) is formed at a front end of each second side plate, which can engage with the corresponding locating plate. Two cutouts (36) are defined in each second side plate. During assembly, the locating slots engage with the locating plates with the second cover at an angle to the first cover. The second cover is then rotated downwardly so that the cutouts engage with the protrusion plates and the second side plates are clipped between the first side plates and the protrusion plates. The first cover and the second cover can then be fixed together by a pair of screws (59).
    Type: Application
    Filed: May 24, 2004
    Publication date: November 25, 2004
    Inventor: Xiao Ling Zhang
  • Publication number: 20030170855
    Abstract: The present invention provides protein tyrosine phosphatases (PTP) in which the invariant aspartate residue and the invariant glutamine residue are each replaced with a replacement amino acid residue, wherein the replacement residues together cause a reduction in catalytic rate (kcat) of the enzyme and an increase in substrate-binding affinity (Kd) of the enzyme. The present invention further provides methods for identifying a substrate of a PTP. Also provided are kits for identifying a substrate of a PTP. Additionally, the present invention provides methods for identifying an agent that alters interaction between a PTP and a substrate of the PTP. The invention also provides methods for reducing the activity of a substrate of a PTP.
    Type: Application
    Filed: January 10, 2003
    Publication date: September 11, 2003
    Inventors: Zhong-Yin Zhang, Laiping Xie, Yan-Ling Zhang
  • Publication number: 20020183047
    Abstract: A system and method for information inquiry to phone books or databases of mobile phones is disclosed. In one embodiment, the disclosed system integrates person names and company titles into keywords to find properly allocations in databases for storage purpose. An individual may inquire information by giving keywords under input modes by means of English characters, mandarin phonetic notations, or pinyin syllables for searching. A telephone number selected from the searched database records can then be dialed based on individual's selections.
    Type: Application
    Filed: June 4, 2001
    Publication date: December 5, 2002
    Applicant: Inventec Appliances Corp.
    Inventors: Ling Zhang, Tony Tsai
  • Patent number: 6328759
    Abstract: The object of the present invention is to provide a three-dimensional spine remedying apparatus, which offers more comprehensive functions and better curative effects, and frees the patient from discomfort during the process of treatment. The apparatus of the invention includes: a frame; a cephalothoracic board and a driving device thereof; a hip-leg board and a driving device thereof; a low-speed draught device; a hip board capable of rotating around the axle Z and a driving device thereof; a device for securing the body of the patient and an adjusting means thereof. The driving devices of said cephalothoracic board, hip-leg board and hip board are high-speed driving devices employing electromagnetic force. Said hip-leg board and hip board are capable of not only rotating by a predetermined angle, but also making high-speed angular oscillation.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: December 11, 2001
    Inventor: Ji Ling Zhang
  • Patent number: 6088428
    Abstract: A voice controlled voice-messaging systems permits manipulation of voice messages over the telephone without the need for keypressed commands. Manipulation includes playback of messages, deletion of messages, saving messages, and sending a new message to a recipient from a user-defined list. Access to the messaging system is by spoken password. Voice input also allows the following functions: enrollment of a spoken password; granting or refusing user access to the system based on verification of the user speaking a password; recognition of spoken utterances of "yes" and "no" in response to prompts by the VMS; recognition of "stop" to interrupt and stop a voice message during playback; enrollment of a spoken personal directory of names of potential message recipients; and recognition of names in the spoken personal directory.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: July 11, 2000
    Assignee: Digital Sound Corporation
    Inventors: David Trandal, David Brahm, Jan Vanderford, R. Anthony Bladon, Xiao-Ling Zhang
  • Patent number: 5338670
    Abstract: A fermentation level cultivation of Bordetella pertussis bacteria on commercial scale is described. The critical factors in large scale cultivation of the bacteria are the presence of an antifoam agent and maintaining proper oxygen level and iron content in the culture medium. Pertussis toxin produced by the bacteria parallels the rate of growth of the bacteria.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: August 16, 1994
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Ronald D. Sekura, Yan-Ling Zhang, Joseph Shiloach