METHOD AND ARRANGEMENT FOR REMOVING NOISE AND MEASUREMENTS OF HEAD- MEDIA SPACING MODULATION FOR DIGITAL RECORDING

METHOD AND ARRANGEMENT FOR REMOVING NOISE AND MEASUREMENTS OF HEAD-MEDIA SPACING MODULATION FOR DIGITAL RECORDING A method and arrangement for measuring head-media spacing modulation (HMS_Wq) employs a profilometer to measure the surface topography of a disk. A cumulative power spectral density (PSD...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	PRESSESKY JASON L, WANG JIANMIN
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	METHOD AND ARRANGEMENT FOR REMOVING NOISE AND MEASUREMENTS OF HEAD-MEDIA SPACING MODULATION FOR DIGITAL RECORDING A method and arrangement for measuring head-media spacing modulation (HMS_Wq) employs a profilometer to measure the surface topography of a disk. A cumulative power spectral density (PSD) distribution is generated from the measured surface topography. Discontinuities and steps are identified in the PSD distribution. The discontinuities and steps are removed to cerate a corrected PSD distribution. A noise free spectrum is then reconstructed from the corrected PSD distribution.