Agilent Technologies

About: Agilent Technologies is a company organization based out in Santa Clara, California, United States. It is known for research contribution in the topics: Signal & Mass spectrometry. The organization has 7398 authors who have published 11518 publications receiving 262410 citations. The organization is also known as: Agilent Technologies, Inc..

CCD imager for confocal scanning microscopy

Abstract: A CCD array imager adapted for use as a spatial noise discriminator in confocal scanning microscopy comprises a parallel (vertical) register with a horizontal unmasked imaging row of pixels in tandem with a masked storage array, a serial (horizontal) register for readout, and a means for synchronizing image acquisition in the unmasked row with vertical charge shifting in the storage array such that images are mapped to on-diagonal pixels of the storage array whereas noise is mapped to off-diagonal pixels. A method for using the present invention as a spatial noise discriminator for fluorescence microscopy includes acquiring a fluorescence image in a pixel of the unmasked row of the parallel register, vertically shifting the charges accumulated in the row into the storage array, moving the next fluorescent image horizontally to the next position in the unmasked row, repeating the process to map image information to the on-diagonal pixels of the storage array while segregating noise in the off-diagonal pixels and selectively retrieving image information.

Exact-mass library for pesticides using a molecular-feature database.

Abstract: An automated molecular-feature database (MFD) consisting of the exact monoisotopic mass of 100 compounds, at least one exact mass product ion for each compound, and chromatographic retention time were used to identify pesticides in food and water samples. The MFD software compiles a list of accurate mass ions, excludes noise, and compares them with the monoisotopic exact masses in the database. The screening criteria consisted of ±5 ppm accurate mass window, ±0.2 min retention time window, and a minimum 1000 counts (signal-to-noise (S/N) ratio of ∼10:1). The limit of detection for 100 tested compounds varied from <0.01 mg/kg for 72% of the compounds to <0.1 mg/kg for 95% of the compounds. The MFD search was useful for rapid screening and identification of pesticides in food and water, as shown in actual samples. The combined use of accurate mass and chromatographic retention time eliminated false positives in the automated analysis. The major weakness of the MFD is matrix interferences and loss of mass accuracy. Strengths of the MFD include rapid screening of 100 compounds at sensitive levels compared with a manual approach and the ease of use of the library for any accurate mass spectrometer instrumentation capable of routine sub-5-ppm mass accuracy. Copyright © 2006 John Wiley & Sons, Ltd.

Wireless no-touch testing of integrated circuits

Abstract: A wireless integrated circuit test method and system is presented The invention allows testing of one or more integrated circuits configured with a wireless interface and a test access mechanism which controls input of test data received over a wireless connection from a test station to test structures which test functional blocks on the integrated circuit Via the wireless connection, multiple integrated circuits or similarly equipped devices under test can be tested simultaneously The invention also enables concurrent testing of independently testable functional blocks on any given integrated circuit under test

Pixel sensor column amplifier architecture

Abstract: A pixel column amplifier architecture creates a reduced noise differential image signal from an pixel sensor array. The pixel column amplifier architecture comprises a first double sampling (DS) circuit and a second DS circuit that has the same configuration as the first DS circuit. An image signal containing a combination of noise components created on a substrate is coupled to the first DS circuit. A reference image signal, held in a reset state, represents the noise component of the image signal and is coupled to the second DS circuit. Further, a reference voltage source is coupled to a reference input of both the first DS and the second DS circuits. The first DS circuit provides the first side of the differential image signal, and the second DS circuit provides the second side of the differential image signal.

Acoustic galvanic isolator incorporating single decoupled stacked bulk acoustic resonator

Abstract: Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an electrically-isolating acoustic coupler connected between the modulator and the demodulator. The acoustic coupler comprises no more than one decoupled stacked bulk acoustic resonator (DSBAR). An electrically-isolating acoustic coupler based on a single DSBAR is physically small and is inexpensive to fabricate yet is capable of passing information signals having data rates in excess of 100 Mbit/s and has a substantial breakdown voltage between its inputs and its outputs.