Information processing apparatus with contactless...

Communications: radio wave antennas – Antennas – With radio cabinet

Reexamination Certificate

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Details

C343S895000

Reexamination Certificate

active

11366750

ABSTRACT:
An information processing apparatus (2) has a contactless reader/writer (90), which includes a coil antenna (110) having a plurality of turns for transmitting and/or receiving an RF modulated carrier signal, by magnetic coupling. The coil antenna (110) is coupled to a transceiver (92) and is disposed in a space within a case (10) between an electric shield (70) and a casing (78) of the case (10). The coil antenna (110) is wound about one center axis (C1) over a predetermined length (L1) to have a generally tubular shape of a predetermined diameter and a predetermined number (N1) of turns, and has a coil plane (P1) at one end of the predetermined length. The electric shield does not have any part present between the part of the casing facing the coil plane located on the one center axis and the electric shield (70), and the outer side portion of the coil antenna (110) is disposed, being spaced from said electric shield by a predetermined distance (dS2).

REFERENCES:
patent: 6636728 (2003-10-01), Avenel
patent: 2003/0090429 (2003-05-01), Masudaya et al.
patent: 2003/0210198 (2003-11-01), Nantz et al.
patent: 2006/0176229 (2006-08-01), Copeland et al.
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patent: 11-213116 (1999-08-01), None
patent: 2001-156674 (2001-06-01), None
patent: 2001-284935 (2001-10-01), None
patent: 2002-305461 (2002-10-01), None
patent: 2002-344172 (2002-11-01), None

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