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
Hard disk drives having different rotational speeds
Engineered magnetic layer with improved perpendicular anisotropy using glassing agents for spintronic applications
Process for the preparation of protected L-alanine derivatives
Changing sound alerts during a messaging session
Liquid crystal shutter glasses
Method for determining the local position of at least one mobile radio communication device based on predetermined local positions of adjacent radio communication devices, associated radio com
System and method for multi-threaded OFDM channel equalizer
  Randomly Featured Patents
Hybrid vehicle
Method of reducing the wall thickness of a PTFE tube and product formed thereby
Highly maneuverable trailer driver
Process for the manufacture of non-reverting elastomeric organopolysiloxanes
Foam control agent for paints and coatings
Plant base
Method and apparatus for approximating diagonal lines in placement
Polyphenylene ether copolymer and thermoplastic resin compositions containing the same
Optionally substituted 3-methylsulfinyl indazoles
Antirrhinum plant named `Yahit`