Electronic digital logic circuitry – Function of and – or – nand – nor – or not – Diode
Reexamination Certificate
2006-03-21
2006-03-21
Tan, Vibol (Department: 2819)
Electronic digital logic circuitry
Function of and, or, nand, nor, or not
Diode
C326S133000
Reexamination Certificate
active
07015724
ABSTRACT:
To make a decision circuit for RZ format optical signals at a very high data rate, the device (1′) comprises an electronic component (2) having a tunnel diode characteristic presenting a peak current (IP) and a valley current (IV). The device (1′) comprises a control current source (9) controlled by a control signal (VRESET) said current being injected into the component (2) and taking a first value or a second value. In response to an input optical signal (E), generator means (2) generate a current (IRZ) into the component (2). The valley current (IV) is of a value greater than the first current value and the peak current (IP) is of a value lying between a second current value (IR) and the sum of said second value plus the value (IRZ) of the current generated the generator means (2).
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Sanu Kimikazu et al, “An 80-Gb/s Optoelectronic Delayed Flip-Flop IC Using Resonant Tunneling Diodes and Uni-Traveling Carrier Photodiode”, IEEE Journal of Solid State Circuits, vol. 36, No. 2, Feb. 2001, pp. 281-289, XP002257720.
Alcatel
Sughrue & Mion, PLLC
Tan Vibol
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