Method and apparatus for dynamically varying the noise...

Details Method and apparatus for dynamically varying the noise... Method and apparatus for dynamically varying the noise...

2005-04-12

2005-04-12

Luther, William A (Department: 2667)

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

C375S222000, C327S068000, C370S359000

Reexamination Certificate

active

06879645

ABSTRACT:
A method of dynamically, and automatically, varying the sensitivity of a receiver coupled to receive signals on a carrier medium, such as for example POTS wiring, includes the step of detecting whether more than a predetermined number of noise events, such as for example traversals of a noise threshold level, occur within a predetermined time. If the predetermined number of noise events occur, the sensitivity of the receiver is automatically varied by a predetermined increment. For example, the noise threshold level may be raised by a predetermined voltage to vary the sensitivity of the receiver.

REFERENCES:
patent: 5091920 (1992-02-01), Ikeda et al.
patent: 5307379 (1994-04-01), Bergstrom et al.
patent: 5521941 (1996-05-01), Wiatrowski et al.
patent: 6163580 (2000-12-01), Jackson et al.

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