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
Call admission control method and system
Potato cultivar F10
Reducing energy and increasing speed by an instruction substituting subsequent instructions with specific function instruction
Polymer composites having highly dispersed carbon nanotubes
Probe for ultrasound diagnostic apparatus
Plastic floor-wall transition methods, materials, and apparatus
Digital image processing device and processing method thereof
  Randomly Featured Patents
Method for testing blood units for viral contamination
Combined adjustable back support cushion and headrest for attachment to an automobile seat
Method of predicting breakage properties of a particulate material when subjected to impact
Novel irradiated polyethylene filaments tapes and films and process therefor
Injection of refrigerant in system with expander
Hydraulically driven percussion hammer
Orthopedic foot splint with swivel and stop
Device and method for detecting a divergence of an adaptive system and use of such a device for the detection of a divergence of a digital filter
Mechanical assembly means for grand fault interrupter receptacle
Abrasion resistant laminate