Patents by Inventor Robert G. Renninger

Robert G. Renninger 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: 6972634
    Abstract: The invention provides an oscillator apparatus having a plurality of stages, with each stage of the plurality of stages having an output node, and with a plurality of input transistors within each stage. The various output nodes are coupled to the transistor inputs of the various stages, such that for the nth stage of the plurality of stages, the input to jth transistor, of the plurality of input transistors, is coupled to the (n?j)th output node, and wherein (n?j) is determined modulo N, where ā€œNā€ is a total number of the plurality of stages and ā€œjā€ is a transistor number of the plurality of input transistors within each stage. The various embodiments of the oscillator include oscillators with 6 or more stages and with 3 or more inputs per stage, plus any load input transistor, including 8 and 16 stage oscillators to produce a multiplicity of phases for any selected use.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 6, 2005
    Assignee: Agere Systems Inc.
    Inventor: Robert G. Renninger, II
  • Patent number: 6801095
    Abstract: The invention provides a method, program and system for designing an oscillator apparatus having a plurality of stages, with each stage of the plurality of stages having an output node, and with a plurality of input transistors within each stage. The various output nodes are coupled to the transistor inputs of the various stages, such that for the nth stage of the plurality of stages, the input to a jth input transistor, of the plurality of input transistors, is coupled to the (n−j)th output node, and wherein (n−j) is determined modulo N, where “N” is a total number of the plurality of stages and “j” is a transistor number of the plurality of input transistors within each stage. The methodology determines relative sizes of each input transistor within a stage for a given number of stages, a total transconductance of the input transistors per stage, and a minimum relative attenuation of undesired modes.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: October 5, 2004
    Assignee: Agere Systems, Inc.
    Inventor: Robert G. Renninger, II
  • Publication number: 20040100334
    Abstract: The invention provides a method, program and system for designing an oscillator apparatus having a plurality of stages, with each stage of the plurality of stages having an output node, and with a plurality of input transistors within each stage. The various output nodes are coupled to the transistor inputs of the various stages, such that for the nth stage of the plurality of stages, the input to a jth input transistor, of the plurality of input transistors, is coupled to the (n−j)th output node, and wherein (n−j) is determined modulo N, where “N” is a total number of the plurality of stages and “j” is a transistor number of the plurality of input transistors within each stage. The methodology determines relative sizes of each input transistor within a stage for a given number of stages, a total transconductance of the input transistors per stage, and a minimum relative attenuation of undesired modes.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Inventor: Robert G. Renninger