Including Electron Discharge Device Patents (Class 332/114)
  • Patent number: 8508309
    Abstract: A wideband phase modulator comprises a multiphase generator, a phase selector, and a phase adjuster. The wideband phase modulator is configured to receive an N-bit digital phase-modulating signal comprising a timed sequence of N-bit phase-modulating words, where N is a positive integer representing the bit resolution of the N-bit digital phase-modulating signal. The multiphase generator generates a plurality of coarse carrier phases, all having the same carrier frequency but each offset in phase relative to the other. The M most significant bits of the N-bit phase-modulating words are used to form M-bit phase select words that control the output phase of the phase selector. The phase adjuster performs a precision rotation operation, whereby a selected coarse carrier phase is adjusted so that the phase of the resulting final precision phase-modulated signal more closely aligns with a desired precision phase.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: August 13, 2013
    Inventor: Earl W. McCune, Jr.
  • Patent number: 7728680
    Abstract: The present invention relates to a method for transmitting a two-valued signal via a channel, a pulse train being output after the change of a signal level of the two-valued signal, and subsequently to the pulse train, a backswing is output. The present invention also relates to a circuit configuration for transmitting a two-valued signal having a magnetically coupled coil pair which includes an input coil and an output coil, at least two driver stages which are each connected to a terminal of the input coil, and an evaluation circuit which is connected to the terminals of the output coil, a capacitance being provided between a driver stage and a terminal of the input stage, and the input coil and the output coil each include two coil sections having windings in the opposite direction, the coil sections having the same winding direction of the input coil and the output coil being magnetically coupled.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: June 1, 2010
    Assignee: CT-Concept Holding AG
    Inventors: Jan Thalheim, Sascha Pawel