Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2008-06-03
2008-06-03
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S058000, C327S063000, C327S306000, C327S307000, C330S254000, C330S258000
Reexamination Certificate
active
07382166
ABSTRACT:
A signal amplification device which uses inexpensive standard CMOS and yet is capable of high-accuracy threshold setting. An offset voltage generator detects the direct-current level of an input signal, and generates a positive or negative offset voltage signal. A peak detector outputs, as a peak value, the positive offset voltage signal if the level thereof is higher than the maximum level of the input signal, or the maximum level of the input signal if the maximum level is higher than the positive offset voltage signal. A bottom detector outputs, as a bottom value, the negative offset voltage signal if the level thereof is lower than the minimum level of the input signal, or the minimum level of the input signal if the minimum level is lower than the negative offset voltage signal. A voltage divider subjects the peak and bottom values to voltage division, to generate a threshold level.
REFERENCES:
patent: 4414689 (1983-11-01), Enderson
patent: 5539779 (1996-07-01), Nagahori
patent: 5574714 (1996-11-01), Masashi et al.
patent: 5923219 (1999-07-01), Ide et al.
patent: 6522160 (2003-02-01), Zivanovic
patent: 6823025 (2004-11-01), Lee et al.
patent: 6828859 (2004-12-01), Dupuis
patent: 7154289 (2006-12-01), Zivanovic
patent: 2003/0098805 (2003-05-01), Bizjak
patent: 2003/0169654 (2003-09-01), Hino et al.
“A 1.25 Gb/s High Sensitive Peak Detector in Optical Burst-Mode Receiver Using a 0.18μ CMOS Technology”, Ja-Won Seo et al., Proceedings of ICCT2003, pp. 644-646.
Fujitsu Limited
Lam Tuan T.
Nguyen Hiep
Staas & Halsey , LLP
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