Resources Contact Us Home
Frequency synthesizer for synthesizing signals of a variety of frequencies by cross modulation

Image Number 7 for United States Patent #5559475.

A frequency synthesizer in which a PLL synthesizer 50 generates signals of frequency steps of an integer times a target frequency step. A base band generator 2 digitally generates sine wave signal components of the target frequency step. The outputs from the PLL synthesizer 50 and the base band generator 2 are cross-modulated by use of a quadrature modulator 1 to change the frequency of the output signals with a change step of the base band generator 2.

  Recently Added Patents
Interferer region identification using image processing
Method for forming contact hole
Graphical planner
Quinoid thiophene organic photoelectric material, preparation method thereof and application thereof
Display screen with graphical user interface
Container pack
Image forming apparatus assembled with a fixing member and a pressing member
  Randomly Featured Patents
Folding shoe rack
Prosody template matching for text-to-speech systems
Dual radio
Ignition distributor for internal combustion engine
Conductor identifying probe and voltage supply device
Maximum power point motor control
Tapered hexagonal stem for lamp
High polymer electrolyte fuel cell and electrolyte film-gasket assembly for the fuel cell
Bistable liquid crystal element