Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Negative resistance type
Reexamination Certificate
2006-04-04
2006-04-04
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Negative resistance type
C327S570000
Reexamination Certificate
active
07023264
ABSTRACT:
An N-shaped nonlinear resistor circuit using floating gate MOSFETs; to realize various N-shaped characteristics that can be approximated by piecewise linear functions of third to seventh orders and further to realize N-shaped V-I characteristics that can variously change those characteristics by use of external voltages. A Λ-type nonlinear resistor circuit (1) and a V-type nonlinear resistor circuit (2) using multi-input floating gate MOSFETs are connected in parallel, and the currents of the Λ-type and V-type nonlinear resistor circuits are added together, thereby providing various N-shaped voltage-current characteristics.
REFERENCES:
patent: 3252005 (1966-05-01), Pendred
patent: 3479526 (1969-11-01), Stanchi
patent: 6356136 (2002-03-01), Horio et al.
patent: 39-3222 (1964-03-01), None
patent: 2000-68788 (2000-03-01), None
Aihara Kazuyuki
Fujiwara Tetsuya
Horio Yoshihiko
Japan Science and Technology Agency
Lam Tuan T.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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