The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2002
Filed:
Nov. 12, 1998
Hiroto Kitai, Tokyo, JP;
Kengo Emoto, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Information is recorded on or reproduced from a hybrid card having an optical recording region and a non-contact type IC memory region connected to a card-side antenna coil. The information recording and/or reproduction is effected by an apparatus including an optical head for scanning the optical recording region with a light beam, a control circuit for exerting tracking and focusing control on the light beam, an apparatus-side antenna coil to be disposed opposite to the card-side antenna coil, a reader/writer for storing information in or reading information from the IC memory region by way of electromagnetic induction coupling between the card-side antenna coil and the apparatus-side antenna coil, and a processing circuit for controlling the operation of the optical head, the control circuit and the reader/writer. The processing circuit controls the read/writer so as not to store information in nor read information from the IC memory region during the period there the control circuit is exerting tracking control or focusing control.