Invention Grant
- Patent Title: System for preventing excessive skipping on audio disks
- Patent Title (中): 用于防止音频磁盘过度跳过的系统
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Application No.: US12427368Application Date: 2009-04-21
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Publication No.: US07957227B2Publication Date: 2011-06-07
- Inventor: Edward G. Jellard
- Applicant: Edward G. Jellard
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Oppenheimer Wolff & Donnelly LLP
- Main IPC: G11B21/08
- IPC: G11B21/08

Abstract:
The present invention provides for a method for reducing undesirable skipping during playback of a compact disc in a compact disc player. A lens system of the compact disc player reads audio data and subcode data from the compact disc. The subcode data includes Q channel bits and P channel bits. The actual time lapse of the compact disc playback is calculated from the Q channel bits and the P channel bits, while a target time lapse is calculated based on data received from a real-time clock. The difference between the two time lapse values is calculated, and if the differences is greater than a predetermined threshold, the lens system is repositioned to read the audio data from the compact disc corresponding to a predetermined time interval in advance of the current position of the lens system.
Public/Granted literature
- US20090245041A1 SYSTEM FOR PREVENTING EXCESSIVE SKIPPING ON AUDIO DISKS Public/Granted day:2009-10-01
Information query
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