System for detecting defective portions in data recording portions of optical recording medium.

申请公布号：EP0345786(B1)

申请号：EP19890110401

申请日期：1989.06.08

申请公布日期：1994.09.28

申请人：

DAI NIPPON INSATSU KABUSHIKI KAISHA

发明人：SAKAI, YORIHIKO C/O DAI NIPPON INSATSU K.K.;OTA, YASUSHI

分类号：G01N21/95;G06T1/00;G11B7/0037;(IPC1-7):G01N21/88

主分类号：G01N21/95

FEED DEVICE

BACK LIGHT

KARAOKE DEVICE AND RECORDING MEDIUM FOR KARAOKE

DISCRIMINATING, SEPARATING, AND REGENERATING METHOD FOR IRON AND COPPER FROM SCRAPS

SIGNAL CONVERTING CIRCUIT

INSTRUMENT AND METHOD FOR MEASURING ROTATIONAL AMOUNT OF SPHERICAL BODY

SOUND IMAGE CONTROLLER

REPRODUCING DEVICE

LIQUID CONTAINER AND METHOD FOR OPENING THE SAME

DISPLAY DEVICE

NICKEL-HYDROGEN BATTERY

METHOD AND DEVICE FOR CONVERTING IMAGE DATA

AUTOMATIC GAIN ADJUSTMENT METHOD FOR DIRECTIONAL ELECTROMAGNETIC STEEL PLATE ABNORMAL GRAIN DETECTION DEVICE

DEVICE FOR RETRIEVING DICTIONARY

METHOD FOR PREPARING DOCUMENT

ACOUSTIC-WAVE SENSOR DEVICE

PRODUCTION OF 1,4-BUTANEDIOL

METHOD AND EQUIPMENT FOR COMMUNICATING MULTIPLEX LEVEL MODULATION DATA BY USING CHAIN CODING

HIGH PRESSURE PHASE BORON NITRIDE SINTERED BODY FOR CUTTING TOOL AND ITS PRODUCTION

OPTICAL CHANGEOVER DEVICE