Circuit and method of differential amplitude detection

Details Circuit and method of differential amplitude detection Circuit and method of differential amplitude detection

1994-12-05

1996-02-13

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 52, 327 54, 327 58, 327 65, 327 67, H03D 100, G01R 1900

Patent

active

054914345

ABSTRACT:
A differential amplitude detection circuit (10) passes the positive and negative components of a data communication differential signal through peak detector circuits (12) and (26), respectively. The peak detected voltages are held at first (15) and second (37) nodes by holding capacitors (14) and (28). Current loads (18) and (30) sink predetermined currents from the first and second nodes to prevent the peak voltages from becoming accumulated by the holding capacitors. The peak detected voltages are summed by summing circuit (21) to provide a signal V.sub.OUT that is absent of DC offset voltage errors that were present in the originally transmitted data signal. First and second resistors (36, 38) extract the common mode component of the input signal which may be subtracted from the V.sub.OUT signal for providing an error free true data output signal VTO.

REFERENCES:
patent: 4631737 (1986-12-01), Davis et al.
patent: 4698523 (1987-10-01), Gershon et al.
patent: 4985683 (1991-01-01), O'Neill
patent: 4994692 (1991-02-01), Wolke
patent: 5120995 (1992-06-01), Abdi
patent: 5247211 (1993-09-01), Sakura
patent: 5253249 (1993-10-01), Fitzgerald et al.
patent: 5287063 (1994-02-01), Izawa
patent: 5303266 (1994-04-01), Budin et al.
patent: 5305350 (1994-04-01), Budin et al.
patent: 5381052 (1995-01-01), Kolte
patent: 5412692 (1995-05-01), Uchida

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