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
Coated article and method for making the same
Fuel cell system, and electric vehicle equipped with the fuel cell system
Sonic fast-sync system and method for bluetooth
Headset systems and methods
Multi-radio coexistence
Recovery of a hot-pluggable serial communication link
Method and apparatus of motion vector prediction with extended motion vector predictor
  Randomly Featured Patents
Vessel sealer and divider
High frequency MTI radar
Lighting fixture
Closure and methods for placing and removing such a closure
Method of determining features of events or processes having a dynamic evolution in space and/or time
Electrolytic polymer capacitors for decoupling power delivery, packages made therewith, and systems containing same
Point-to-point prefix protocol
Steering support beam
Outboard hub barrel mounted rotor
Integrated multiplex drive system for a passive liquid crystal display (LCD) using modulated pulse widths