Patent · US Active

Systems, methods and apparatus for digital-to-analog conversion of superconducting magnetic flux signals

US8098179B2 · kind B2 · utility

82Cited by
14References
63Claims
0Family size

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Inventors

Key dates

Filing dateMay 14, 2008
Grant dateJan 17, 2012
Priority date
Expiry dateNov 17, 2030

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB82Y10/00
  • WIPO fieldMicro-structural and nano-technology
  • WIPO sectorChemistry

Abstract

A superconducting flux digital-to-analog converter includes a superconducting inductor ladder circuit. The ladder circuit includes a plurality of closed superconducting current paths that each includes at least two superconducting inductors coupled in series to form a respective superconducting loop, successively adjacent or neighboring superconducting loops are connected in parallel with each other and share at least one of the superconducting inductors to form a flux divider network. A data signal input structure provides a respective bit of a multiple bit signal to each of the superconducting loops. The data signal input structure may include a set of superconducting quantum interference devices (SQUIDs). The data signal input structure may include a superconducting shift register, for example a single-flux quantum (SFQ) shift register or a flux-based superconducting shift register comprising a number of latching qubits.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.