Resources Contact Us Home
Digital phase-lock loop systems for phase processing of signals

Image Number 5 for United States Patent #3936762.

A digital phase-locked loop in which an error signal representing the difference between the phases of an input signal and an output signal is converted to a digital signal having a time-varying value. A programmable divider means is provided to produce a pulse control signal having a frequency which varies in accordance with the time-varying value of the digital signal. The pulse control signal controls the number of pulses which are deleted from a reference clock signal to produce an intermediate signal which in turn is fed to a feedback counter for producing the output signal, the phase of which depends on the number of deleted pulses, so that the phase of the output signal effectively follows the phase of the input signal.

  Recently Added Patents
System and methods for obstacle mapping and navigation
Radio communication system, base station apparatus, terminal apparatus, and radio communication method for radio communication system
Apparatus for tuning a musical instrument, and a related instrument
Proximity sensor arrangement in a mobile device
Method for transmitting a signal
Inter-carrier communications for multimedia-message delivery
Vehicle, toy, and/or replicas thereof
  Randomly Featured Patents
Transistor with source and drain regions within the semiconductor substrate detached or laterally displaced from the transistor gate
Drive roller control for toric-drive transmission
Toner replenishing apparatus and image forming apparatus
Flash memory device having a split gate
Adjustable roller support for a rotary drum
Method and apparatus for managing recoil of electromagnetic guns
Wide-band linearization technique
Gas delivery system
Method of making photoelectric conversion device