Patent · US Active

Magnetic oscillator with multiple coherent phase output

US7795984B2 · kind B2 · utility

1Cited by

0References

20Claims

0Family size

Assignee

Seagate Technology LLC · US

Inventors

Haiwen Xi · Prior Lake, US
Dian Song · Eden Prairie, US
Song S. Xue · Morristown, US

Key dates

Filing date	Jun 4, 2008
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Dec 5, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH03B15/006
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Apparatus to generate signals with multiple phases are described. The apparatus includes a fixed multilayer stack providing a varying magnetic field and at least two sensors adjacent the fixed multilayer stack to sense the varying magnetic field and generate at least two output signals. The frequency of the output signals can be tuned by an input current.

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