Patents by Inventor Mark Edwin Faulhaber

Mark Edwin Faulhaber 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).

  • Defect identification with normalizing of gain function in optical-electrical inspection
    Patent number: 4005281
    Abstract: Method and apparatus for defect identification with normalizing of the optical-electrical inspection system gain function of scans across a full width of running product web in order to facilitate defect amplitude discrimination within the uneven portions of repetitive scan signals, and then, after accumulating a preselected number of gain-normalized scans, identifying protracted duration defect-related signals by amplitude discrimination.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: January 25, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mark Edwin Faulhaber, Edmund Haislett Smith, Jr.
  • Music synthesizer
    Patent number: 3986426
    Abstract: A music synthesizer produces pitch-proportional voltages in a novel resistor network, uses these voltage via keyboard control to generate in a voltage-controlled oscillator a high frequency signal, being a multiple of all the harmonic frequencies desired, separates the individual harmonics, converts them to sine waves with voltage-controlled tunable tracking filters, blends the waves in desired proportions, introduces transients of attack, decay, sustain, and release of key into each note, and introduces appropriate vibrato. An alternate apparatus accepts an external signal and converts it to voltages proportional to frequency, whereby accompaniment on pitch, in "close harmony" or more distantly related, is provided.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: October 19, 1976
    Inventor: Mark Edwin Faulhaber
  • Yarn detector with a self-calibrating circuit
    Patent number: 3986037
    Abstract: In a yarn inspection system for detecting variations in yarn diameter wherein a plurality of yarns move past a plurality of transducers for generating electrical signal outputs corresponding to yarn diameter and including discriminator circuitry sequentially connected to each of the transducers for processing the signal outputs, a self calibrating circuit arrangement has been devised to compensate for normal variations in the output of individual transducers due to different characteristics among the separate transducers.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: October 12, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mark Edwin Faulhaber
  • Implicit ratio computer for sequential signals
    Patent number: 3955096
    Abstract: An electrical signal ratioing circuit for a source delivering an electric analog pulse signal sequence having compensating means for removing the effects of background influences, such as amplifier signal offsets and extraneous illumination, and integrating means eliminating the effect of line voltage variations and changes in optical and electrical system gains on the ratios so produced.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: May 4, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mark Edwin Faulhaber