Patents by Inventor Michel Grandguillot

Michel Grandguillot 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: 5267216
    Abstract: A plurality of local address transition detector (LATD) circuits, one per address bit signal (Ai), of the type used in SRAMs to generate an on-chip clock pulse (LATDSi) that insures a correct timing of internal circuits such as sense amplifiers and address decoders that are essential for a correct READ/WRITE operation of the SRAM. According to one aspect of the invention, each LATD circuit includes: a first bipolar transistor (T1) serially connected with a first FET device (N1) forming a first branch; a second bipolar transistor (T2) serially connected with a second FET device (N2) forming a second branch. The first and second branches are connected in parallel between a first supply voltage (Vcc) and a common output node (N) connected to a circuit output terminal (30-i) where the output signal (LATDSi) generated by the LATD circuit (22-i) is available.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: November 30, 1993
    Assignee: International Business Machines Corporation
    Inventors: Bertrand Gabillard, Philippe Girard, Michel Grandguillot
  • Patent number: 4830264
    Abstract: Disclosed is a method of forming solder terminals for a pinless module, preferably for a pinless metallized ceramic module. The method is comprised of the following steps: forming a substrate having a pattern of conductors formed onto its top surface and preformed via-holes extending from the top to bottom surface; applying a droplet of flux at at least one of said preformed via-hole openings of the bottom surface of said substrate to fill said via-holes with flux by capillarity and form a glob of flux at the bottom openings; applying a solder preform, i.e.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: May 16, 1989
    Assignee: International Business Machines Corporation
    Inventors: Alexis Bitaillou, Michel Grandguillot
  • Patent number: 4529896
    Abstract: A true/complement generator for generating the complement and true value of weighted address bits, preventing an address decoder from selecting several lines at the same time. It comprises two circuits (1) and (2), the first one providing the true value (.phi.), the second one providing the complement (.phi.) thereof. The means provided for preventing multiple selections from occurring, comprise in the first circuit, a transistor (T11-1) for delaying the rising edge of (.phi.) as long as it is maintained on by the level provided by resistors R11-1 and R10-2 from output .phi.. Transistor T11-2 in the second circuit prevents .phi. from going high as long as it is maintained on by the level provided by R10-1, R11-2 from .phi..
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: July 16, 1985
    Assignee: International Business Machines Corporation
    Inventors: Michel Grandguillot, Pierre Mollier, Jean-Paul Nuez