Invention Grant
- Patent Title: Media design and write technique for creating neutral polarity transition zones
-
Application No.: US18181458Application Date: 2023-03-09
-
Publication No.: US12073862B2Publication Date: 2024-08-27
- Inventor: Thomas Young Chang , Philip L. Steiner , Zengyuan Liu
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Fremont
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Fremont
- Agency: Holzer Patel Drennan
- Main IPC: G11B5/73
- IPC: G11B5/73 ; G11B5/008 ; G11B5/02 ; G11B5/00

Abstract:
A heat-assisted magnetic recording (HAMR) device is configured to write regions of neutral polarity on a magnetic media during a same pass of the recording head in which other regions are written of positive polarity and negative polarity. The various disclosed write techniques may facilitate creation of “zero state” (substantially net zero polarity) transition zones between each pair of data bits of opposite polarity and/or may facilitate the encoding of three different logical states (e.g., 1, 0, and −1) on the media.
Public/Granted literature
- US20230215461A1 MEDIA DESIGN AND WRITE TECHNIQUE FOR CREATING NEUTRAL POLARITY TRANSITION ZONES Public/Granted day:2023-07-06
Information query
IPC分类: