Circuit and method to prevent errors in recording

专利名称：Circuit and method to prevent errors in

recording

发明人：Woo-sik Eom申请号：US09792038申请日：20010226

公开号：US20010024286A1公开日：20010927

摘要：A circuit and a method of preventing errors in recording. The circuit includes afirst detector to generate a detection pulse by determining whether or not a countedvalue, which is obtained by counting a cycle of an input wobble signal based on a systemclock signal, is in the permissible range of a constant write rate. The circuit furtherincludes a second detector to generate a recording control signal to allow or prohibit arecord operation after determining whether the detection pulse meets a predeterminedlock condition or a predetermined unlock condition. The circuit prevents errors inrecording prevents errors in reproduction data caused by errors in recording, by

prohibiting recording if the rotation speed of a disc is not at a desired constant rate in anoptical recording and/or reproducing apparatus in which data can be reproduced at aconstant or a variable rate and must be recorded at a constant rate. Thus, data can bestably recorded, thereby enhancing recording quality.

申请人：EOM WOO-SIK

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