Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1991-12-18
1995-09-05
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327562, 327563, 327202, 327203, G06G 712, H03K 3289
Patent
active
054482003
ABSTRACT:
A master-slave differential comparator having a threshold value. The master section controls the threshold value of the slave section. The slave section is controlled by bias currents therein to matching same in the master section. The bias currents are substantially determined by fixed biases applied to the master section, the difference in biases being substantially equal to the threshold value of the comparator.
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patent: 4922131 (1990-05-01), Anderson et al.
patent: 4970406 (1990-11-01), Fitzpatrick et al.
patent: 5061862 (1991-10-01), Tamagawa
patent: 5065055 (1991-11-01), Reed
"International Standard", ISO 8802-3 ANSI/IEEE Std.802.3, First Edition 1989-02-24, pp. 92-99.
"A CMOS Ethernet Serial Interface Chip", Digest of Technical Papers, ISSCC 84/Thursday, Feb. 23, 1984/Imperial Ballroom/ THAM 13.1 pp. 184 and 185.
"10 MB/S Twisted Pair CMOS Transceiver with Transmit Waveform Pre-Equalization" IEEE 1991 Custom Integrated Circuits Conference, Cheng-chung Shih, Joe Heideman, Haim Shafir, Stefan Wurster, pp. 7.3.1 to 7.3.4.
Fernandez Francisco J.
Leonowich Robert H.
AT&T Corp.
Callahan Timothy P.
McLellan Scott W.
Phan Trong
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