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
Techniques for reducing arcing-related damage in a clamping ring of a plasma processing system
Avatar eye control in a multi-user animation environment
High yield and high throughput method for the manufacture of integrated circuit devices of improved integrity, performance and reliability
System and method for data storage
Monolithic magnetic apparatus and process for making said monolithic magnetic apparatus
Detecting method and device for capacitive touch screen
Wave power unit with guiding device
  Randomly Featured Patents
Fast unaligned memory access system and method
Information-discriminating circuit
Cotton yarn-like textured composite yarn and a process for manufacturing the same
Disk record player
Inductor structure
Position detection device for automatic transmission
Edge-lit optical element having a manifold and lamp assembly utilizing such element
Processes for the preparation of branched, water soluble cellulose products
Sirtuin activating compounds and methods for making the same
Means for mounting pipes and conduits in studs and joists