Patents by Inventor Richard M. Lienau

Richard M. Lienau 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: 6545908
    Abstract: A nonvolatile ferromagnetic RAM device which is capable of reading the data stored in each magnet quickly and efficiently utilizing a minimal number of components. Specifically there is a nonvolatile ferromagnetic RAM which is capable of reading the data stored in each magnetic bit. The ferromagnetic memory cell, comprising of a base (19) that is oriented in a horizontal plane. There is also a bit (3), made of a ferromagnetic material, having: a height that is oriented perpendicular to the horizontal plane of the base, and a polarity that can be directed along the height. Additionally, there is a sense line (1), positioned proximate the bit (3) sufficient to detect the directed polarity of the bit; and a write line (2), positioned proximate the bit sufficient to direct the polarity of the bit.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: April 8, 2003
    Assignees: Pageant Technologies, Inc., Estancia Limited
    Inventor: Richard M. Lienau
  • Patent number: 6330183
    Abstract: A nonvolatile ferromagnetic RAM device which is capable of reading the data stored in each magnet quickly and efficiently utilizing a minimal number of components. Specifically there is a nonvolatile ferromagnetic RAM which is capable of reading the data stored in each magnetic bit. The ferromagnetic memory cell, comprising of a base (19) that is oriented in a horizontal plane. There is also a bit (3), made of a ferromagnetic material, having: a height that is oriented perpendicular to the horizontal plane of the base, and a polarity that can be directed along the height. Additionally, there is a sense line (1), positioned proximate the bit (3) sufficient to detect the directed polarity of the bit; and a write line (2), positioned proximate the bit sufficient to direct the polarity of the bit.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: December 11, 2001
    Assignee: Pageant Technologies, Inc. (Micromem Technologies, Inc.)
    Inventor: Richard M. Lienau
  • Patent number: 6317354
    Abstract: A non-volatile RAM device is disclosed which utilizes a plurality of ferromagnetic bits (6) each surrounded by a coil of a write line (13) for directing the remnant polarity thereof is disclosed. The direction of magnetic remnance in each bit (6) is dictated by the direction of a current induced into write line (13). Further, a magneto sensor (7) comprising a magneto resistor (1) coupled to a collector (2) is placed approximate each bit (6). The magneto resistor (1) is coupled to a control circuit (30) for receiving current. The current passing across magneto resistor (1) is biased in a direction either right or left of the original current flow direction. The collector is coupled to a sense line (4), which in turn, is coupled to an amplifier (12). When current flow is biased in the direction of the collector, the serial resistance of the magneto resistor will be decreased, and the sense line (4) will receive a high amount of current.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: November 13, 2001
    Assignee: Pageant Technologies, Inc.
    Inventor: Richard M. Lienau
  • Patent number: 6288929
    Abstract: A non-volatile RAM device is disclosed which utilizes a plurality of ferromagnetic bits (6) each surrounded by a coil of a write line (13) for directing the remnant polarity thereof is disclosed. The direction of magnetic remnance in each bit (6) is dictated by the direction of a current induced into write line (13). Further, a magneto sensor (7) comprising a magneto resistor (1) coupled to a pair of collectors (2a & 2b) is placed approximate each bit (6). The magneto resistor (1) is coupled to a control circuit (30) for receiving current. The current passing across magneto resistor (1) is biased in a direction either right or left of the original current flow direction. The collectors are coupled to a pair of sense lines (4a & 4b), which are in turn, coupled to a voltage differential amplifier (12). The collector in the direction of biased current flow, will receive a greater number of electrons than the other collector, and therefore have a greater negative charge.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: September 11, 2001
    Assignee: Pageant Technologies, Inc.
    Inventor: Richard M. Lienau
  • Patent number: 6266267
    Abstract: A nonvolatile ferromagnetic RAM device and method that is capable of reading the data stored in each magnet quickly and efficiently utilizing a minimal number of components. Specifically, there is a nonvolatile ferromagnetic RAM which is capable of reading the data stored in each magnetic bit. Specifically, there is a ferromagnetic memory cell, comprising a bit (3), made of a ferromagnetic material, having a remnant polarity. A write line (2), located proximate the bit, is coupled to receive: 1) a first current sufficient to create the remnant polarity, and 2) a pulsed second current, insufficient to create any remnant polarity, but sufficient to potentially fluctuate the remnant polarity during the second current pulse. A sense line (1), positioned proximate the bit (3), has the purpose of detecting any potentially created remnant polarity fluctuation.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: July 24, 2001
    Assignee: Pageant Technologies, Inc.
    Inventor: Richard M. Lienau
  • Patent number: 6229729
    Abstract: A non-volatile RAM device is disclosed which utilizes a plurality of ferromagnetic bits (8) each surrounded by a write coil (15) for directing the remnant polarity thereof is disclosed. The direction of magnetic remnance in each bit (8) is dictated by the direction of a current induced into write coil (15). Further, a magneto sensor (9) comprising a magneto resistor (18) coupled to a diode (26) is placed approximate each bit (8). The magneto resistor (18) is coupled to a sense line (20), and receives current at a first point of attachment, and returns current at a second point of attachment. The current passing across magneto resistor (18) is biased in a direction either right or left of the original current flow direction. If current is biased toward the anode end of diode (26) then it is complimentary to the preferred flow direction of diode (26), and flows easily there across.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: May 8, 2001
    Assignee: Pageant Technologies, Inc. (Micromem Technologies, Inc.)
    Inventor: Richard M. Lienau
  • Patent number: 5295097
    Abstract: A nonvolatile random access memory is disclosed having a substrate (50) carrying separate magnetically polarizable domains (19) each surrounded by a full write loop member (18) and arranged to penetrate the Hall channel (36) of a dual drain FET (16) with its residual magnetic field. The domains are organized in word rows and bit columns, are each written to by a single full write current through the surrounding loop member and each read by a comparator connected to the FET drains (42, 42'). The memory can be fabricated in a variety of forms (e.g. a planar card).
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: March 15, 1994
    Inventor: Richard M. Lienau
  • Patent number: 5193870
    Abstract: A device for sanitary disposal of pet droppings lying on a ground surface. The device allows sanitary packaging of the droppings in a plain sheet of paper or plastic placed over the droppings. The device has a wire catch fixed to one end of a first handle, a rod slidable through the handle, a second handle fixed to one end of the rod, and a wire loop attached to an opposite end of the rod. The loop is placed over the sheet around the droppings and the handles are pulled apart to gather and close the sheet around the droppings. The resulting package is retained by the device for transport and disposal at an appropriate site.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: March 16, 1993
    Inventors: Irene MacInnis, Richard M. Lienau, Bonnie L. Lienau
  • Patent number: 5150099
    Abstract: A home security detection system, incorporating an antenna phasing system for transmitting signals and receiving return signals, and computer software driven circuitry identifies specific characteristics of both stationary and movable objects in a monitored area to obtain a template. The system activates an alarm or interacts with other external alarm systems when the absence or presence of certain object-characteristics are identified as abnormal as compared to the template.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: September 22, 1992
    Inventor: Richard M. Lienau
  • Patent number: 4791604
    Abstract: A sheet random access memory (SHRAM) is a truly random access, nonvolatile and transportable memory characterized by the cell density, size and power requirements of smaller dynamic memories but having the nonvolatile character of core memories or magnetic disks and tape and the rugged transportability of magnetic disk and tape. The SHRAM is characterized by a memory media comprising a two dimensional magnetic substrate and a fixed driving device for writing and reading into the substrate and a fixed sensing device for sensing the information at each cell location. In one embodiment the fixed sensing device is a sensing line in close proximity to a cell location. In a second embodiment, a fixed sensing device includes a Hall effect device which senses the magnetic configuration of the cell. In a third embodiment, the fixed sensing device includes an SCS thyristor in which the cathode gate is coupled to the magnetic configuration of the cell.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: December 13, 1988
    Assignees: Joseph J. Bednarz, Richard M. Lienau
    Inventors: Richard M. Lienau, Kenneth E. Pope