Abstract: A system and method is disclosed for managing bandwidth in a wireless probe measurement system that may include receiving an indicator at the wireless probe to begin taking measurements of one or more variables, measuring the one or more variables, calculating a set of statistical values at the wireless probe using the measured one or more variables, and transmitting the set of statistical values to a central station.
Type:
Grant
Filed:
October 31, 2003
Date of Patent:
April 24, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
Jefferson B. Burch, Bruce Hamilton, Nikhil Sharma, Glenn R. Engel, Glen L. Purdy, Jr.
Abstract: The frequency changes in a bang-bang PLL that are generated using a digital phase detector's up/down signal are initially set to produce a faster pull-in rate and then reduced to produce a slower pull-in rate. The faster pull-in involves relatively large frequency changes and the slower pull-in rate involves smaller frequency changes. The changes in frequency of a bang-bang PLL can be implemented using a step size controller that includes timing control logic and step size logic. The function of the timing control logic is to control the timing of step size changes. The function of the step size logic is to set the step size of the frequency changes that are made by the VCO in response to the pd_up/down signal that is delivered directly to the VCO from the digital phase detector.
Type:
Grant
Filed:
February 17, 2006
Date of Patent:
April 24, 2007
Assignee:
Agilent Technologies
Inventors:
Gunter Willy Steinbach, Brian Jeffrey Galloway, Thomas Allen Knotts
Abstract: The present invention is a method, and a kit for carrying out the method, of separating phosphorylated peptides from a mixture of phosphorylated and unphosphorylated peptides. The method involves reacting a collection of peptides, in which some of the peptides have one or more phosphate groups, with a first resin. The peptides are then reacted with a capture ligand which reacts with the phosphate group of the phosphorylated peptides to form a bond. The capture ligand is used to separate the phosphorylated peptides from the unphosphorylated peptides.
Abstract: The present invention provides a sensor surface comprising: a substrate coated with a free electron metal; and a matrix layer disposed on the free electron metal, wherein the matrix layer comprises an organic compound having a boronic acid complexing moiety. The matrix is preferably a self-assembled monolayer (SAM), a mixed self-assembled monolayer (mSAM), or combinations thereof.
Type:
Grant
Filed:
April 2, 2002
Date of Patent:
April 24, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
Mark L. Stolowitz, Jean P. Wiley, Guisheng Li, Kevin Lund
Abstract: Although various embodiments of the method and apparatus of the present invention have been illustrated in the accompanying Drawings and described in the foregoing Detailed Description, it will be understood that the invention is not limited to the embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the spirit of the invention as set forth herein.
Abstract: An apparatus for analyzing ions is described. The apparatus includes an ion source, an ion trap positioned to receive ions from the ion source; a time of flight mass analyzer, and a detector operatively coupled to the time of flight. The time of flight mass analyzer includes a pulser region, and the pulser region is positioned to receive ions from the ion trap. The apparatus further includes a scanning delay timing circuit in operable relation to the pulser region. The scanning delay timing circuit is adapted to triggering an extraction pulse at the pulser region. Methods of analyzing ions by mass spectrometry are also described.
Type:
Grant
Filed:
August 27, 2004
Date of Patent:
April 24, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
August Hidalgo, Stuart C. Hansen, Gangqiang Li
Abstract: A device for holding an elongated item includes a base member and first and second mounting brackets positioned on the base member. First and second fittings are positioned on the mounting brackets. The fittings are respectively engageable with ends of the elongated item. The second mounting bracket is movable on the base member to permit positioning of the elongated item between the fittings. A restraining mechanism is positioned between the base member and the second mounting bracket for holding the bracket in a predetermined position.
Abstract: A method and system characterize a random component of the jitter by designating an edge in the repetitive pattern, determining a slope of the designated edge, and acquiring a set of amplitude values at a different occurrences of the designated edge. A frequency domain representation of the set of amplitude values is then obtained, and identified peaks in the frequency domain representation are truncated. An RMS value, or other measure of random variations of the truncated representation is extracted and converted, based on the slope of the designated edge, to a corresponding RMS time jitter that represents the random component of the jitter. A periodic component of the jitter is characterized by determining the peak amplitude deviation of the acquired set of amplitude values, and then determining a periodic amplitude variation based on the RMS value, the peak amplitude deviation and the number of amplitude values in the set of amplitude values.
Abstract: Calibration devices for optical scanners and methods for their use are provided. The subject devices are characterized by having a polymeric coating with at least one fluorescent agent, where the devices have minimal local and global nonuniformities. The subject device may also include one or more photobleached regions. In using the subject devices, a surface is illuminated with at least one light source, fluorescence data is obtained from the surface and the optical system is calibrated based upon the obtained fluorescence data. The subject invention finds use in a variety of optical scanners, including biopolymeric array optical scanners. Also provided are kits for use in verifying and calibrating optical scanners.
Type:
Grant
Filed:
September 16, 2004
Date of Patent:
April 17, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
Nelson R. Holcomb, Russell A. Parker, Steven M. Lefkowitz
Abstract: A data processing apparatus is coupled to receive call data records from a telephone network (4), for example an SS7 network. The apparatus (1) receives data records of different types having different formats. For each different type of data record, the apparatus (1) has a library (9, 10, 11 ) of type-specific functions associated with the particular type of data record. The apparatus (1) also has a set (8) of common functions available which contains functions that can be utilized for all types of data records, and for managing the system. Instructions are received by the apparatus (1), which indicate which type or types of data records are to be received and which functions are to be carried out on the data records. The apparatus (1) then creates a function list of the particular functions that are to be carried out before executing the particular functions on the received data records and then storing the processed records in a database (12, 13, 14).
Type:
Grant
Filed:
November 1, 2001
Date of Patent:
April 17, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
John William Forsyth Macartney, Richard Beattie, Neil John McKenzie, Alistair Kenneth Clement Scott
Abstract: A method, apparatus, and computer program, for fabricating multiple arrays arranged successively in a first direction on a substrate and each having multiple feature sets arranged successively in the first direction within the array. The method uses a head system having multiple successive sets of dispensers. In the method, the head system is advanced in the first direction over the substrate while dispensing drop sets for each array from dispenser sets so as to form the arrays. In one aspect, drop sets are dispensed in an order the reverse of that from which the dispenser sets pass over a given location on the substrate as the head system advances in the first direction. In this case, each dispenser set deposits a drop set at a distance ahead of a drop set deposited by a preceding dispenser set which is less than the distance to the successive drop dispenser set which deposits the next drop set.
Abstract: A method, apparatus, and computer program product for reading fluorescence signals from an array of chemical moieties (such as different sequence peptides or polynucleotides, for example different DNA sequences). In the method the spatial sequence of scanned locations need not be the same as the temporal sequence. For example, a later illuminated line may be spatially closer to an earlier illuminated line than is a temporally intervening illuminated line.
Type:
Grant
Filed:
June 29, 2004
Date of Patent:
April 17, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
Andreas N. Dorsel, Glenda C. Delenstarr, Kenneth L. Staton, George P. Tsai
Abstract: A method of processing one or more detected signal images each acquired from a field of view of a chemical array reader. A location correction is determined based on different detected signals at different image regions which represent regions in the field of view having the same actual signal. Alternatively or additionally, a location correction is applied to a detected signal at an image region. The location correction reduces detected signal discrepancy between different regions in an acquired image which represent different regions in the field of view having the same actual signal. An array reading system and computer program products are also provided.
Type:
Grant
Filed:
April 30, 2003
Date of Patent:
April 17, 2007
Assignee:
Agilent Technologies, Inc.
Inventors:
John F. Corson, Glenda C. Delenstarr, Nicholas M. Sampas
Abstract: The present method reduces variations in noise and temperature in a mixed-signal circuit including memory. Memory electrically proximate an analog circuit is provided and a digital data word received at the memory. When the data word is not a desired data word, a dummy write to the memory is performed. When the data word is a desired data word, the data word is written to the memory. The mixed-signal circuit includes an analog circuit, memory electrically proximate to the analog circuit and connected to receive digital data words, and a memory controller connected to the memory. The memory controller is operable to cause the memory to write to the memory each of the data words that is a desired data word and additionally to perform a dummy write to memory for each of the data words that is not a desired data word.
Abstract: Feature locations are determined in an array image obtained from reading a chemical array comprising multiple features arranged in a polygon and which array optionally includes sub-arrays within the array. A complete image of the array or a sub-array is presented on a display. Magnified images of corner regions of the displayed complete image are simultaneously presented on the display with the complete image. A user selection of corners for the array or sub-array are received and an array or sub-array actual outline is generated by linearly connecting the user selected corners. The generated actual outline is presented on the magnified image and may also be simultaneously presented on the complete image. Feature locations in the array or sub-array image may be determined based on the actual outline.
Abstract: Synthesis of the second strand of cDNA using pol ?-primase is provided. Pol ?-primase is used to initiate primers on a cDNA strand de novo, followed by extension of the primer with pol ?-primase, a second DNA polymerase or a combination thereof. In a preferred embodiment, pol ?-primase extends the primer, followed by addition of a second DNA polymerase, preferably Klenow fragment.
Abstract: A source of ions for an analyzer includes a reservoir for containing a liquid, a manifold having a plurality of nozzles, a conduit connecting the reservoir to the manifold and a counter electrode having a potential different between the counter electrode and the nozzles to enable liquid to be ejected from the nozzles in droplets and to enable ions to be ejected from the droplets.
Abstract: A circuit and method for receiving digital signals are disclosed. The circuit includes an input connected to a communications channel over which a digital signal is communicated and operates a plurality of multiple decision circuits at a frequency that is a fraction of the bit rate of the digital signal. A feedback and/or equalizer circuit receives the output of the decision circuits and applies a feedback signal to the input of the decision circuits that is representative of a combination of output signals of the decision circuits. The result is seen to improve the noise margin for correctly interpreting signals communicated over a communications channel having a low-pass characteristic.
Abstract: A method and system for providing access for a scripting language on a first platform to objects on a second platform. First, a socket connection is established between a program written in a target scripting language and the second platform. Second, a string message that identifies a specific interface is transmitted across the socket. Third, the string message is automatically converted into a call on the specified object. Fourth, a status and any output parameters are converted into a string message and returned to the scripting language on the first platform.