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
Process for preparing higher hydridosilanes
Animation control apparatus, animation control method, and non-transitory computer readable recording medium
Electronic document reading devices
2,2'-binaphthalene ester chiral dopants for cholesteric liquid crystal displays
Method and system for facilitating micropayments in a financial transaction system
Anti-proliferative and anti-inflammatory agent combination for treatment of vascular disorders with an implantable medical device
  Randomly Featured Patents
System and methods for processing analyte sensor data
Soldering method and soldering apparatus
Frequency converting apparatus for converting an RF television signal to a video signal employing low IF techniques
Graphical code readers that provide sequenced illumination for glare reduction
Method and apparatus for making flat bottom bags
Manufacturing method for probe contact
Load pole stabilized voltage regulator circuit
Process for recovering olefins from cracked gases
Method and system for adaptive physical design
Measuring spoon