In this paper we present a new, adaptive spatial-derivative circuit for CMOS image sensors. The circuit removes its offset as a natural part of its operation using a combination of electron tunneling and hot-electron injection to add or remove charge on a floating-gate of an auto-zeroing amplifier. We designed, fabricated and successfully tested a chip with the circuit. Test results show that t...

In this paper, a Least Mean Square (LMS) programming scheme is used to set the offset voltage of two operational amplifiers that were built using floating-gate transistors, enabling a 0.95 VRMS trimmer-less flame detection sensor. The programming scheme is capable of setting the offset voltage over a wide range of values by means of electron injection. The flame detection sensor consists of two...

The circadian pacemaker in the mammalian suprachiasmatic nuclei is responsive to photic and nonphotic stimuli. In the present study, the authors have investigated the response of activity onset and offset to application of nonphotic stimuli: the benzodiazepine midazolam and the opioid receptor agonist fentanyl. In correspondence with previous studies, both stimuli induced phase advances of the ...

The difference between two capacitors is measured digitally using a charge redistribution techrdque incorporating a comparator, MOS switches, a successive approximation register (SAR), and a dlgital-to-anaIog converter (DAC). The technique is insensitive to comparator offset and parasitic capacitance, and the effect of MOS switch charge injection is measured and canceled. Extensive measurements...

Ruled surface is widely used in engineering design such as parting surface design of injection mold and checking surface design of checking fixture, which are usually generated by offsetting 3D curves. However, in 3D curve offset, there often exist break/interaction/overlapping problems which can't be solved by current CAD software automatically. This paper is targeted at developing a 3D curve ...

A simple method for fabricating selective injection microstructured optical fibers (MOFs) using a conventional fusion splicer is described. The effects of fusion current, fusion duration and offset position on the hole collapse property of the MOFs are investigated. With this method, the central hollow-core and the holes in the cladding region can be selectively infiltrated, which allows for th...

We proposed a 24-GHz frequency synthesizer (FS) for automotive radar application, which consists of a phaselocked loop (PLL) and an injection-locked frequency multiplier (ILFM). Based on a novel topology, the multiply-by2 ILFM consists of a double-balanced mixer and an injectionlocked oscillator (ILO). The PLL is designed with a 12-GHz voltage-controlled oscillator (VCO) and an injection-locked...

Linear optics modifications in order to improve injection efficiency and for the installation of two IDs in one straight section demand an optimization of the sextupole correction scheme. Four harmonic sextupole families were sufficient with the earlier 8-fold symmetric lattice. Today there are ten families of harmonic sextupole magnets in addition to the three families of chromatic sextupoles....