Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1997-06-09
1999-08-03
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327315, 330207A, H03L 500
Patent
active
059330406
ABSTRACT:
A method and apparatus for detecting pulse data is accomplished by a low voltage data detection circuit that includes a preamplifier circuit, an amplification stage, and a scaling circuit. The preamplifier circuit has a differential input, a predefined gain, and a maximum output limit and receives an input signal, which has a wide dynamic range. The preamplifier circuit amplifies the input signal based on the predefined gain to produce a preamplified data signal. The preamplified data signal is again amplified by the amplification stage and subsequently provided to the scaling circuit which scales the amplified data signal to a predetermined level. The resulting scaled data signal maintains the pulse width fidelity of the input data signal.
REFERENCES:
patent: 4599571 (1986-07-01), Matsuno
patent: 4870367 (1989-09-01), Nakase et al.
patent: 5103675 (1992-04-01), Komninos
patent: 5371479 (1994-12-01), Hagerty
patent: 5436556 (1995-07-01), Komninos
patent: 5510753 (1996-04-01), French
Jackson H. Spence
Rokhsaz Shahriar
Rybicki Mathew A.
Callahan Timothy P.
Luu An T.
Markison Timothy W.
Sigmatel, Inc.
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