Smartcard in CD

[lynn.wheeler at firstdata.com]

iso format/standard is not only thickness but also flexibility .... even
some proximity (iso 14443) cards have had problem in the past with
flexibiity standards because flex tests would stress the coils in the
plastic and cause the connection to the chip to break.



ray at unipay.nl on 8/31/2002 4:57 arm wrote:


Contactless smart cards typically have coils in the card and the
magnetic field is generated by the reader.

Capacitive coupling is an alternative but requires more precise
alignment and thus doesn't really provide a proximity/vicinity card
like inductive coupling does.

On-board batteries are hard to fit on an ISO-format smart card but
maybe with the new ultra-thin batteries that's no longer the case.
Batteries are perhaps more suitable for a CD.




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