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
Patient interface
Quantifying the risks of applications for mobile devices
DC/DC converter, power supply circuit, and semiconductor device
Wine bottle
Systems and methods for providing a video playlist
Compositions and methods of vascular injury repair
Efficiently emulating computer architecture condition code settings without executing branch instructions
  Randomly Featured Patents
Cellular phone
Apparatus for and method of drilling a hole into the ground
Wireless terminal with gas leakage detection function, gas leakage detection system using the same, and gas leakage notification method
Multiple window electron gun providing redundant scan paths for an electron beam
Wine cellar
Systems and methods with interrupt/resume capabilities for treating subcutaneous lipid-rich cells
Oxide superconductor current lead and method of manufacturing the same
Integrated circuit having improved polysilicon resistor structures
On-line analysis of process gas during the production of ketene
MIMO receiver, MIMO reception method and wireless communication system