Fishing – trapping – and vermin destroying
Patent
1995-07-13
1997-09-23
Nguyen, Tuan H.
Fishing, trapping, and vermin destroying
437127, 437133, H01L 3118
Patent
active
056703856
ABSTRACT:
An optical controlled resonant tunneling oscillator utilizing variation of a resonant tunneling oscillator in accordance with a negative differential resistance, a series resistance and a static capacitance varied in response to the intensity of light when light is incident on a resonant tunneling device having a double barrier quantum well structure and a method for fabricating the same are disclosed. The oscillator modulates the frequency over 2 or 3 levels in response to the intensity of incident light as compared to a conventional photoelectric system that modulates the frequency in response to the ON/OFF electric signal, thereby simplifying the system. The oscillator controls the resonant tunneling at high speed level with light enably processing a signal from tens to hundreds of GHz.
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patent: 5144261 (1992-09-01), Harvey et al.
patent: 5416338 (1995-05-01), Suzuki et al.
patent: 5446293 (1995-08-01), Chu et al.
Phase locking between light pulses and a resonant tunneling diode oscillator (Appl.Phys.Lett. 62(1).4 Jan. 1993) pp. 13,14 &15.
Electronics and Telecommunications Research Institute
Nguyen Tuan H.
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