Circuit to increase the information bit rate in a system for the

Details Circuit to increase the information bit rate in a system for the Circuit to increase the information bit rate in a system for the

1991-11-15

1993-03-02

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Unique identity

342 51, G01S 1374

Patent

active

051913453

ABSTRACT:
In a system for the exchange of data by microwaves between a fixed station and a mobile station or portable badge, the information bit rate is limited, in the standby state, by the low power consumption of the badge and the high output impedance of the modem. To increase the information bit rate of the modem of a badge, the information processing circuit associated with the modem sends the modem an activation signal to reduce its output impedance. The means implemented are transistors that switch over the load of the detector transistor or of the amplifier transistor.

REFERENCES:
patent: 3918057 (1975-11-01), Van Tol
patent: 4656472 (1987-04-01), Walton

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