Patents by Inventor Paul Duval

Paul Duval 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: 7907720
    Abstract: The invention relates to methods for testing analog telephone line equipment including, in particular to detect faults in their hybrid resistor arrays. It consists in isolating the equipment from the telephone line and then applying the normal ringing signal to it. If the resistor array is defective, the output logic signal of the off-hook/on-hook detector circuit comprises a succession of 0 and 1 at the frequency of the ringing signal, which indicates the fault. This makes it possible to eliminate the equipment test relay usually employed.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: March 15, 2011
    Assignee: Alcatel-Lucent
    Inventors: Eric Lantoine, Christophe Henry, Jean Paul Duval
  • Publication number: 20030140043
    Abstract: The invention is directed to a clinical research data management system and method for a plurality of disparate users. The system includes a presentation creation mechanism operable to provide users with data from a database, an application control and navigation mechanism operable to service user requests and a data access mechanism operable to access information that resides in the database. The database is operable to store user data and study data. The study data includes candidate data, specimen data, event data and at least one dataset. The dataset is defined using metadata. The database is operable to store at least one roll associated with each user. User access to study data, candidate data, specimen data, event data and/or data sets is individually limited based on the at least one role associated with each user.
    Type: Application
    Filed: January 23, 2002
    Publication date: July 24, 2003
    Applicant: New York Society for the Relief of the Ruptured & Cripple Maintaining the HOSP for Special Surgery
    Inventors: Robert N. Hotchkiss, Thomas W. Bloomfield, Brent Gendleman, Paul Duvall, Kevin Puscas, Greg Gurley, Rob Daly
  • Patent number: 6141183
    Abstract: A pole-trimmed writer for an MR read/write data transducer which may be produced without significant re-deposition of Al.sub.2 O.sub.3 or NiFe on the sides of the writer poles. The process disclosed herein advantageously provides an upper (top) pole which is processed to project a pair of relatively thin, laterally extending lower flanges, prior to the use of the upper pole as a mask to subsequent ion milling of the lower pole, or shared shield. In a preferred embodiment, the process for producing the flange is implemented in conjunction with the deposition of a single copper (Cu) or dual Al.sub.2 O.sub.3 and chromium (Cr) overlayers formed on the upper pole seed layer followed by the top pole formation and selective removal of a predetermined amount of the underlying portions of the gap material prior to a subsequent ion milling operation and further processing of the read/write head.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: October 31, 2000
    Assignee: Matsushita-Kotobukie Electronics Industries, Ltd.
    Inventors: Andrew L. Wu, Paul Duval, Thomas Ferraguto
  • Patent number: 5804085
    Abstract: A pole-trimmed writer for an MR read/write data transducer which may be produced without significant re-deposition of Al.sub.2 O.sub.3 or NiFe on the sides of the writer poles. The process disclosed herein advantageously provides an upper (top) pole which is processed to project a pair of relatively thin, laterally extending lower flanges, prior to the use of the upper pole as a mask to subsequent ion milling of the lower pole, or shared shield. In a preferred embodiment, the process for producing the flange is implemented in conjunction with the deposition of a single copper (Cu) or dual Al.sub.2 O.sub.3 and chromium (Cr) overlayers formed on the upper pole seed layer followed by the top pole formation and selective removal of a predetermined amount of the underlying portions of the gap material prior to a subsequent ion milling operation and further processing of the read/write head.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: September 8, 1998
    Assignee: Quantum Corporation
    Inventors: Andrew L. Wu, Paul Duval, Thomas Ferraguto