Patent · US Expired

Modal transition imbalance detector

US5781042A · kind A · utility

1Cited by
8References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 24, 1997
Grant dateJul 14, 1998
Priority date
Expiry dateApr 24, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2005/0018
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A magnetoresistive sensor and preamplifier system has an excess differential imbalance detector, (a) for detecting magnitude differences between a pair of signals occurring at the output of a preamplifier subsystem due to modal transitions, and (b) for initiating action to overcome same. The excess imbalance detector changes a threshold therein to become more sensitive to smaller imbalances in the output signals being monitored after detection of a modal transition imbalance.

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