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
Blur correction device and imaging apparatus
Co-crystals of agomelatine, a process for there preparation and pharmaceutical compositions containing them
ESD protection device and method for producing the same
Method of purifying crude acetone stream
Apparatus with a local timing circuit that generates a multi-phase timing signal for a digital signal processing circuit
Piperazinyl methyl phenyl cyclohexane compound
Pressure-sensitive adhesive composition having an improved release behavior
  Randomly Featured Patents
Commercial kitchen exhaust system
Resilient steering stabilizer
Multi-layer golf ball
Therapeutic treatment for viral hepatitis infection
Method and system for specifcation of time dependent acknowledgement transmission media
Semiconductor memory device utilizing a polarization state of a ferroelectric film
Method and apparatus to launch write queue read data in a microprocessor recovery unit
Semiconductor integrated circuit for phase management of clock domains including PLL circuit
Secure remote credential provisioning
Method of measuring electron shading damage