Patents by Inventor Ezio Cottatellucci

Ezio Cottatellucci 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: 4355288
    Abstract: A carrier oscillation in the microwave range is stabilized by a sequence of timing pulses produced by a crystal-controlled reference oscillator whose cadence is an aliquot fraction of the nominal carrier frequency. The pulses are used to obtain two phase-representing amplitude samples of the carrier wave from a pair of mutually phase-shifted pilot oscillations of the same frequency in each of a succession of nonconsecutive cycles thereof; a control voltage derived from these amplitude samples is fed back to the microwave oscillator via a frequency-correcting or phase-locking loop.
    Type: Grant
    Filed: April 22, 1980
    Date of Patent: October 19, 1982
    Assignee: Societa Italiana Telecomunicazioni Siemens S.P.A.
    Inventor: Ezio Cottatellucci
  • Patent number: 4232387
    Abstract: For the transmission of binary signals in a succession of pulse cycles, a message pulse generated at a transmitting station during the first half of a cycle is inverted in the second half thereof before being sent over a line to a remote receiving station. There a synchronization signal is extracted from the incoming pulse train to produce a series of equispaced timing pulses normally occurring in the middle of the second half of each cycle. This incoming pulse train is subtractively combined with a replica thereof, relatively phase-shifted by half a cycle, to produce a ternary pulse train which is sampled by the timing pulses to reproduce the original binary pulse train. An error-rate sensor shifts the series of timing pulses by a half-cycle upon detecting any significant disalignment between them and the correct sampling instants.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: November 4, 1980
    Assignee: Societa Italiana Telecomunicazioni Siemens S.p.A.
    Inventor: Ezio Cottatellucci