Portable data carrier and method for selecting operating mode th

Details Portable data carrier and method for selecting operating mode th Portable data carrier and method for selecting operating mode th

1998-01-22

2000-10-31

Pitts, Harold I.

Registers

Records

Conductive

235487, G06K 1906

Patent

active

061389188

ABSTRACT:
A portable data carrier, suitable for operation in either a contacted or a contactless mode, includes a clock signal input pad and a clock detection circuit. The clock input pad includes an output that is coupled to a selection circuit having a first input and a second input. An input for the selection circuit is coupled to the output of the clock detection circuit. The microprocessing unit follows the clock being transmitted via the clock input pad in the contacted mode of operation if the clock detection circuit confirms presence of such a clock signal. Otherwise, the contactless mode of operation is chosen, where the microprocessing unit follows a radio frequency clock.

REFERENCES:
patent: 4931748 (1990-06-01), McDermott et al.
patent: 5206495 (1993-04-01), Kraft

Affiliated with

Also associated with

Rating

Portable data carrier and method for selecting operating mode th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable data carrier and method for selecting operating mode th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable data carrier and method for selecting operating mode th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2042480