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
Antimicrobial flush solutions
Method for forming a film
Pluggable power cell for an inverter
Thermochromic microparticles, dispersions thereof, and manufacturing method thereof, as well as light-modulating coatings, light-modulating films and light-modulating inks
Case for electronic device
Luggage cart
Leaky wave mode solar receiver
  Randomly Featured Patents
Feed-forward approach for timing skew in interleaved and double-sampled circuits
Method and arrangement for detecting X-rays
Liquid anti-microbial treatments for storage grain with ammonium bisulfite and a disproportionation product thereof
Gas boiler control
Null convention logic gates with flash, set and reset capability
X-ray conversion method
Liquid crystal display device and method of fabricating the same
Frame member
Supported catalyst for the selective hydrogenation of alkynes and dienes