Cable or module identification apparatus and method

Details Cable or module identification apparatus and method Cable or module identification apparatus and method

2005-08-23

2005-08-23

Eng, George (Department: 2643)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C320S106000, C307S125000

Reexamination Certificate

active

06934561

ABSTRACT:
This invention includes a universal base unit having a plurality of cables, each corresponding to a unique electronic host device. The cable includes a capacitor having a value corresponding to a particular electronic host device. The capacitor is coupled in series with a resistor to ground in the universal base unit. The cable further includes a unique mating connector for coupling to the electronic host device. The universal base unit identifies the cable by actuating a step function across the capacitor-resistor network, causing an exponentially decaying waveform. A microprocessor in the host device then measures the width of the waveform to determine the identity of the cable or host device. The system allows a user to carry a single power supply or universal base unit with multiple cables as opposed to having to transport a different accessory for each electronic device.

REFERENCES:
patent: 4006396 (1977-02-01), Bogut
patent: 5184059 (1993-02-01), Patino et al.
patent: 5818197 (1998-10-01), Miller et al.
patent: 5822427 (1998-10-01), Braitberg et al.
patent: 6337557 (2002-01-01), Kates et al.
patent: 6509659 (2003-01-01), Carroll et al.
patent: 6661805 (2003-12-01), Romano et al.

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