Electronic circuit and method for testing a line

Details Electronic circuit and method for testing a line Electronic circuit and method for testing a line

2005-03-15

2005-03-15

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S534000, C324S642000

Reexamination Certificate

active

06867600

ABSTRACT:
The invention relates to an electronic circuit and method for testing a line (10). According to the invention the signal generator (20, 30) comprises a random bit series generating means for generating a spread spectrum test signal and the evaluating unit comprises means (60-90, 200-230) for calculating and evaluating the correlation function of the test signal and the reflected signal.

REFERENCES:
patent: 3906411 (1975-09-01), Lind et al.
patent: 4041381 (1977-08-01), Hwa
patent: 4649335 (1987-03-01), Lassaux et al.
patent: 06291700 (1994-10-01), None
patent: WO 9211710 (1992-07-01), None
patent: WO 9938023 (1999-07-01), None
patent: WO 0016111 (2000-03-01), None

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