Invention Grant
- Patent Title: Pre-compensated optical tape wobble patterns
- Patent Title (中): 预补偿光学胶带摆动图案
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Application No.: US13626414Application Date: 2012-09-25
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Publication No.: US09165598B2Publication Date: 2015-10-20
- Inventor: Faramarz Mahnad
- Applicant: Oracle International Corporation
- Applicant Address: US CA Redwood City
- Assignee: Oracle International Corporation
- Current Assignee: Oracle International Corporation
- Current Assignee Address: US CA Redwood City
- Agency: Brooks Kushman P.C.
- Main IPC: G11B7/095
- IPC: G11B7/095 ; G11B20/10 ; G11B20/12 ; G11B20/14
Abstract:
Amplitude or phase modulated un-compensated wobble patterns representing address patterns for track addresses of optical media are generated. A filter is applied to the un-compensated wobble patterns to pre-compensate the un-compensated wobble patterns. When an inverse of the filter is applied to a signal representing the pre-compensated wobble patterns in the presence of noise, the noise is suppressed and the un-compensated wobble patterns are substantially recovered.
Public/Granted literature
- US20140086029A1 PRE-COMPENSATED OPTICAL TAPE WOBBLE PATTERNS Public/Granted day:2014-03-27
Information query
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