Radio tag antenna structure for an optical recording medium and a case for an optical recording medium with a radio tag antenna

• US 20070018893A1
• Filed: 09/28/2006
• Published: 01/25/2007
• Est. Priority Date: 07/13/2004
• Status: Abandoned Application

• Current Assignee: Andrey Andrenko, Hiroyuki Hayashi, Manabu Kai, Toru Maniwa, Yasuyuki Oishi
• Original Assignee: Andrey Andrenko, Hiroyuki Hayashi, Manabu Kai, Toru Maniwa, Yasuyuki Oishi
• Inventors: Kai, Manabu, Hayashi, Hiroyuki, Maniwa, Toru, Oishi, Yasuyuki, Andrenko, Andrey
• Application Number:
  US11/528,916
• Publication Number:
  US 20070018893A1
• Time in Patent Office: Days
• US Class Current: 343/700.MS
• CPC Class Codes: G11B 23/0042 with provision for auxiliary features sensing such features G11B17/00, G11B19/02
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.

Claims

1. A case for an optical recording medium which has a dielectric layer and a metal layer and is attached an antenna for a radio tag to a portion of said dielectric layer on which said metal layer is not formed, said case comprising:

a dielectric member disposed on an inner surface of said case at a position corresponding to a position at which said antenna is attached when said optical recording medium is contained in said case.