PROXIMITY TYPE DATA CARRIER USING ELECTROMAGNETIC COUPLING

PURPOSE:To uniformize received signals of a data carrier when the electric power of carriers containing the signals is excessively large by providing a means for consuming the excessive component. CONSTITUTION:A data carrier is provided with a reception level detecting section 40 which detects the l...

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Bibliographische Detailangaben
1. Verfasser:	OKI TOSHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FILES GENERATION HANDLING RECORD CARRIERS LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS SPECIAL PRINTED MATTER SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To uniformize received signals of a data carrier when the electric power of carriers containing the signals is excessively large by providing a means for consuming the excessive component. CONSTITUTION:A data carrier is provided with a reception level detecting section 40 which detects the level of received signals fetched by means of the electromagnetic coupling of a reception coil 11 and an electric power consuming section 50 which consumes the electric power of carriers containing the signals in accordance with the detected reception level are provided. Then the reception level of the signals is monitored by means of the detecting section 40 which detects the envelope of the AC component of the carrier containing the received signals fetched by means of the electromagnetic coupling of the coil 11 as the reception level before the carriers are rectified. The electric power of the reception level thus detected is supplied to the consuming section 50 and part of the output of a rectifier circuit 31 is consumed in accordance with the reception level.