Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
A/D converters










Image Number 3 for United States Patent #4940983.

A successive approximation analog to digital converter including at least one superconducting loop (FIG. 3-30; FIG. 8-68). Superconducting loops (61-64) may be used to store flux quanta used as reference levels in a digital to analog converter of the analog to digital converter. Alternatively, non-superconducting reference inductors (FIG. 3-38) can provide flux quanta reference levels. Switchable screens (34; 66) are interposed between the flux quanta stores and lobes (31; 74) in an addition/subtraction superconducting loop (30; 68). An analog signal is sampled and the corresponding magnetic flux coupled to a sensing lobe (32; 71) and concentrated at a flux concentrating lobe (33; 72). The reference fluxes are selectively coupled into the addition/substraction superconducting loop until a magnetometer (40;73) indicates zero net flux through the concentrating lobe, this corresponding to completion of the conversion.








 
 
  Recently Added Patents
Methods, systems and apparatus for displaying the multimedia information from wireless communication networks
Audio processing in a multi-participant conference
Illumination apparatus
Forklift
Changing a system clock rate synchronously
Techniques for performing translation of messages
Analysis, secure access to, and transmission of array images
  Randomly Featured Patents
Room-temperature-curable resin composition
Polymer compositions containing a polymer processing aid and a hindered amine light stabilizer
Back side alignment structure and manufacturing method for three-dimensional semiconductor device packages
Radial lip seal
Diaphysial cortical dowel
Solids precipitation and polymerization of asphaltenes in coal-derived liquids
Transport Refrigeration system
Air conditioner and temperature sensor
Apparatus for shaping cooked meat
Collapsible golf cart