Transponder with a controllable power-on-reset circuit

Details Transponder with a controllable power-on-reset circuit Transponder with a controllable power-on-reset circuit

2003-07-18

2008-09-09

Zimmerman, Brian (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S010100, C340S010400, C340S010500, C340S572400, C235S492000

Reexamination Certificate

active

07423517

ABSTRACT:
In a transponder (1) and an integrated circuit (5), the integrated circuit (6) has a monitoring circuit (23) to which a d.c. supply voltage (VS) can be fed and by which a signalizing signal (POK) whose waveform is dependent on the relationship between the d.c. supply voltage (VS) and a voltage threshold value (VTHR1, VTHR2) can be generated, wherein the monitoring circuit (23) is arranged to be controllable in respect of the generation of the signalizing signal (POK), and wherein a control circuit (28) is provided for controlling the monitoring circuit (23) by means of at least one control signal (CS1, CS2).

REFERENCES:
patent: 5345231 (1994-09-01), Koo et al.
patent: 5736728 (1998-04-01), Matsubara
patent: 6650229 (2003-11-01), Wuidart et al.
patent: 6963270 (2005-11-01), Gallagher et al.
patent: 2001/0052548 (2001-12-01), Kompan et al.
patent: 2003/0162496 (2003-08-01), Liu
patent: 0 831 414 (1998-03-01), None
patent: 2 797 072 (2001-02-01), None

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