Resources Contact Us Home
Device for generating a frequency modulated signal

Image Number 4 for United States Patent #4590445.

A device for generating a frequency-modulated signal according to a predetermined modulation law includes a digital generator that, from a clock signal, generates an output signal s(t) and a error signal (S.sub.e). The signal s(t) is a signal in which the duration of each alternance is an integer multiple of the clock period. The error signal (S.sub.e) represents the modulation errors of the output signal s(t) with respect to the theoretical output signal (S.sub.t) modulated according to the predetermined law. An error correction device receives the output signal s(t) and is controlled by the error signal (S.sub.e) and corrects the modulation errors and provides a corrected output signal.

  Recently Added Patents
Storing a location within metadata of visual media
Semiconductor device
PVD coated tool
Method and apparatus for managing backup channel in multi-channel environment
Method of treating lung cancer
Method for the hydrolysis of substituted formylamines into substituted amines
Magnetic reading and writing device
  Randomly Featured Patents
Vinyl acetate/ethylene copolymer emulsions exhibiting both partially- and fully-hydrolyzed polyvinyl alcohol compatibility
Compounds for the reduction of beta-amyloid production
Overhead conveyor with accumulation dock
Yarn feed apparatus
Method and device for aligning a charged particle beam column
Fire suppressing apparatus
Mining machine bit and mounting thereof
Decoding apparatus, dequantizing method, distribution determining method, and program thereof
Microscope with correlatable fixation target
Method and apparatus for determining micro-reflections in a network