Patents by Inventor Joseph A. Webb

Joseph A. Webb 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: 5304158
    Abstract: A disposable diaper system including a diaper body having a pouch, a changing pad within the pouch which can be removed therefrom and form a surface shield extending away from the diaper body, containers connected to the changing pad for containing personal care products, and a disinfectant connected to the changing pad. The soiled diaper is placed in the pouch and wrapped in the changing pad for disinfectant and disposal purposes.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: April 19, 1994
    Inventor: Joseph A. Webb
  • Patent number: 5101432
    Abstract: Method and apparatus for encrypting and subsequently decrypting an analog or digital signal are disclosed. During encryption the signal waveform is transformed by a substantially continuous non-linear complex function of frequency. The transformation is characterized in that the time duration of a transformed impulse signal is substantially increased. Decryption requires transformation of the encrypted signal by substantially the complex inverse of the encryption function. The transformations may vary in time during encryption/decryption of a signal.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: March 31, 1992
    Assignees: Cardinal Encryption Systems Ltd., Joseph Alfred Webb
    Inventor: Joseph A. Webb
  • Patent number: 4090145
    Abstract: A quadrature analog-to-digital sampler, operating at a minimum sampling rate equal to the bandwidth of the input signal provides a pair of quadrature related digital signals which are input to first and second digital computers. The first computer calculates the instantaneous amplitude of the input signal and the second computer computes the instantaneous phase of the input signal. A third digital computer acts on the output of the second computer and differentiates the instantaneous phase of the signal with respect to time to provide frequency modulation output.
    Type: Grant
    Filed: February 8, 1972
    Date of Patent: May 16, 1978
    Inventor: Joseph A. Webb