Research/Patents/US 4646060
US 4646060

SUPERCONDUCTING ANALOG-TO-DIGITAL CONVERTER WITH BIDIRECTIONAL COUNTER

Assignee

TRW INC., A CORP. OF OH

Filed

Sep 7, 1984

Granted

Feb 24, 1987

Location

Redondo Beach CA (TRW)

Abstract

An analog-to-digital converter quantizer and bidirectional counter using superconducting quantum interference devices (SQUID's) as the principal elements. A double-junction non-latching SQUID is used as a quantizer to produce unipolar output pulses on two different output lines, indicative of positive and negative increments of change in an analog signal current. The unipolar pulses are then counted in a bidirectional counter that employs double-junction non-latching SQUID's as counter stages and as logic gates for the propagation of carry and borrow signals from stage to stage.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jun 28, 1985

Rescinded

Feb 14, 1986

Duration

7 months

Inventor

  • 1RICHARD R. PHILLIPS

Sensitive facility: Redondo Beach CA (TRW)

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records