Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2006-09-19
2006-09-19
Nguyen, Simon (Department: 2618)
Communications: electrical
Selective
Interrogation response
C455S299000, C340S870030, C327S330000
Reexamination Certificate
active
07109845
ABSTRACT:
A circuit arrangement for detecting a received signal includes a rectifier with an input connected to a receiving antenna for rectifying an encoded received signal, a signal capacitor connected to an output of the rectifier, a discharge current sink connected to the signal capacitor, and a signal evaluating circuit connected to the signal capacitor. The discharge current sink includes a current mirror circuit of cascode-connected transistors. Thereby, the discharge current is substantially independent of the signal voltage over a larger range of voltages. This signal detection circuit is useful in transponders or remote sensors that receive and detect a signal transmitted by a base station.
REFERENCES:
patent: 4506169 (1985-03-01), Cole
patent: 5153583 (1992-10-01), Murdoch
patent: 5825214 (1998-10-01), Klosa
patent: 5889489 (1999-03-01), Friedman et al.
patent: 6445233 (2002-09-01), Pinai et al.
patent: 6469913 (2002-10-01), Hosotani et al.
patent: 6664770 (2003-12-01), Bartels
patent: 2002/0098818 (2002-07-01), Yokogawa et al.
patent: 2004/0196097 (2004-10-01), Miyagi
patent: 3854129 (1995-12-01), None
patent: 19537920 (1997-04-01), None
patent: 10012637 (2001-09-01), None
patent: 1026832 (2000-08-01), None
patent: 1134134 (2001-09-01), None
D. A. Johns and K. Martin, “Analog Integrated Circuit Design”, Chapter 6 “Advanced Current Mirrors and Opamps”, section 6.1 “Advanced Current Mirrors”, pp. 256 to 259, ISBN:0-471-14448-7.
Atmel Germany GmbH
Fasse W. F.
Fasse W. G.
Nguyen Simon
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