Patents by Inventor Joseph C. McAlexander, III

Joseph C. McAlexander, III 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: 4748349
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: May 31, 1988
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4543500
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled drive transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: September 24, 1985
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4543501
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: September 24, 1985
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4533843
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: August 6, 1985
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4418293
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: November 29, 1983
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4370575
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: January 25, 1983
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao
  • Patent number: 4288706
    Abstract: A random access read/write MOS memory device employs bistable latch or buffer circuits as the address inputs, data inputs, and the like. The buffers function to latch the data or address to allow the inputs to change states. The buffer is activated by TTL level inputs, exhibits low capacitance at its input, and switches states fast enough to allow rapid multiplexing of the addresses. Noise immunity is improved by selective implants of some of the transistors, and by use of filter capacitors connected between input nodes and Vss rather than Vdd.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: September 8, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Edmund A. Reese, Lionel S. White, Jr., Joseph C. McAlexander, III
  • Patent number: 4280070
    Abstract: A random access read/write MOS memory device employs bistable latch or buffer circuits as the address inputs, data inputs, and the like. The buffers function to latch the data or address to allow the inputs to change states. The buffer is activated by TTL level inputs, exhibits low capacitance at its input, and switches states fast enough to allow rapid multiplexing of the addresses. Noise immunity is improved by selective implants of some of the transistors, and by use of filter capacitors connected between input nodes and Vss rather than Vdd.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: July 21, 1981
    Assignee: Texas Instruments Incorporated
    Inventors: Edmund A. Reese, Lionel S. White, Jr., Joseph C. McAlexander, III
  • Patent number: 4239993
    Abstract: A random access read/write MOS memory device consisting of an array of rows and columns of one-transistor memory cells employs a bistable sense amplifier circuit at the center of each column. The sense amplifier is of the dynamic type in that coupling transistors connect the column line halves to the cross-coupled driver transistors. The sources of the driver transistors are connected to ground through a sequentially timed, three step grounding arrangement employing two transistors, one having a dual channel implanted to provide two different threshold voltages. Active load devices connected to the column line halves provide pull-up of the voltage on the one-going column line half to a full Vdd level.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: December 16, 1980
    Assignee: Texas Instruments Incorporated
    Inventors: Joseph C. McAlexander, III, Lionel S. White, Jr., G. R. Mohan Rao