With Rotating Dynamoelectric Amplifying Device Patents (Class 330/58)
  • Patent number: 8824626
    Abstract: A detector circuit can include an integrator having an amplifier, a first feedback capacitor connected between an input and output of the amplifier, one or more additional feedback capacitors connected by at least one switch between the input and output of the amplifier, and a shunt capacitor connected to the output of the amplifier. The shunt capacitor can be selected to have a capacitance value greater than that of a minimum but less than that of a maximum feedback capacitance. The detector circuit can further include a sampling circuit having a sampling capacitor connected to the output of the integrator amplifier through at least one switch, wherein the sampling capacitor is separate from the shunt capacitor. A computed tomography imaging apparatus can include the detector circuit.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 2, 2014
    Assignee: Analog Devices, Inc.
    Inventors: Michael Coln, Paraic Brannick, Colin G. Lyden, Cathal Murphy
  • Patent number: 7545208
    Abstract: The present invention uses an electromagnetic device for amplifying an input signal without the use of amplifiers, power supplies, and inverter/converter circuits. The present invention routes an input signal through an electromagnetic device for amplification of the input signal for later use by various loads.
    Type: Grant
    Filed: November 12, 2005
    Date of Patent: June 9, 2009
    Inventor: Manuel De Jesus Rodriguez
  • Patent number: 7212749
    Abstract: An Improved Signal Receiver Having Wide Band Amplification Capability is disclosed. Also disclosed is a receiver that is able to receive and reliably amplify infrared and/or other wireless signals having frequency bandwidths in excess of 40 MHz. The receiver of the present invention reduces the signal-to-noise ratio of the received signal to ?th of the prior systems. The preferred receiver eliminates both the shunting resistor and the feedback resistor on the input end by amplifing the signal in current form. Furthermore, the receiver includes transconductance amplification means for amplifying the current signal without the need for Cascode stages. Finally, the receiver includes staged amplification to amplify the current signal in stages prior to converting the signal into a voltage output.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: May 1, 2007
    Assignee: ZiLOG, Inc.
    Inventors: T. Allan Hamilton, Alan Grace