Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may include receiving a signal. The signal may encode a data packet. The method may include further sampling the signal to generate sampled values, and generating a slice record comprising a plurality of slices from the sampled values by correlating the sampled values with first and second reference templates. The first reference template may include a first reference function, and the second reference template may include a second reference function in quadrature with the first reference function. The method may further include cross-correlating the slice record with a stored template to generate cross-correlation terms, and determining when a magnitude of the cross-correlation terms exceeds a predetermined threshold for a width of the stored template.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method may comprise receiving and sampling a signal. The signal may encode a data packet. A slice may be generated and stored comprising a pair of values for each of a selected number of samples of the signal representing a correlation of the signal to reference functions in the receiver. The presence of the data packet may then be detected and the detected packet decoded from the stored slices. The generating and storing slices may be carried out as the received signal is sampled. The sampled values of the signal may be discarded as the slices are generated and stored. The slice representation of the signal can be manipulated to generate filters with flexible bandwidth and center frequency.

Abstract: A method is disclosed for detecting, by a sensing and data acquisition circuit module, at least one parameter associated with an access port. The method includes wiping at least a portion of an access port, allowing the access port to dry for a predetermined amount of time, accessing the access port with an access device, such as a syringe, and detecting at least one parameter associated with the access port by the sensor and acquisition module. An access port is disclosed that includes a sensor and a data acquisition module for sensing, recording, and providing an alert associated with the detection of the at least one parameter associated with the access port.

Abstract: An apparatus for holding liquid samples.

Abstract: The present disclosure provides an apparatus for handling a liquid sample, wherein the apparatus includes integrated sample processing and sample evaluating components. The sample processing and evaluating components can include solid matrices that allow for optical measurement of a sample, or for the removal of contaminants from a sample. Methods for using the apparatus to handle liquid samples and evaluate sample components are also provided.

Abstract: Methods and apparatus for delivering a plurality of different biological materials onto discrete locations on a receiving surface, as for example to fabricate an array of different biological materials. The apparatus and methods may include a plurality of orifices in an orifice member, at least six delivery chambers each in fluid conducting relationship with at least one of the orifices, a plurality of reservoirs each in fluid communication with at least one of the delivery chambers, means associated with each orifice for propelling fluid through the associated orifice from the delivery chamber that is in fluid conducting relationship with the orifice, and a vent for commonly venting at least two of the reservoirs. In some embodiments the chambers and reservoirs are loaded with fluids containing selected biomolecules by drawing the selected fluids into the chambers through the orifices; in other embodiments the fluids are introduced into the reservoirs.

Abstract: Methods and apparatus for delivering a plurality of different biological materials onto discrete locations on a receiving surface, as for example to fabricate an array of different biological materials. The apparatus and methods may include a plurality of orifices in an orifice member, at least six delivery chambers each in fluid conducting relationship with at least one of the orifices, a plurality of reservoirs each in fluid communication with at least one of the delivery chambers, means associated with each orifice for propelling fluid through the associated orifice from the delivery chamber that is in fluid conducting relationship with the orifice, and a vent for commonly venting at least two of the reservoirs. In some embodiments the chambers and reservoirs are loaded with fluids containing selected biomolecules by drawing the selected fluids into the chambers through the orifices; in other embodiments the fluids are introduced into the reservoirs.

Abstract: An exchange switch for an optical switching network utilizes the manipulation of fluid to selectively exchange outputs for two optical transmission paths. That is, when the switch is in a signal-exchange state, first and second transmission paths reciprocally exchange optical signals that are received at input waveguides of the transmission paths. In one embodiment, the exchange switch includes an optical switching arrangement having first and second switching members. The first switching member is positioned to selectively interrupt the continuation of signal propagation along the first transmission path, while the second switching member is positioned to selectively interrupt the continuation of signal propagation along the second transmission path. When fluid resides within the chambers of the two switching members, the exchange switch is in a signal-continuation state.

Abstract: A comparative conductivity detection system includes a sample channel assembly and a reference channel assembly. The sample channel assembly includes a sample-fluid channel, a drive electrode, and a detection electrode. The reference channel assembly includes a reference fluid channel, a drive electrode, and a detection electrode. The channels are formed as trenches in a planar substrate. Each electrode is capacitively coupled to its respective channel through a planar cover over the substrate. The drive electrodes are driven anti-synchronously (180° out of phase), while the signals induced in the detection electrodes are summed. The summed detection signal indicates the comparative conductivity of the sample and reference fluids. The reference fluid can, for example, include non-sample components of the sample fluid so that artifacts due to the non-sample components are cancelled in the comparative conductivity detector output.

Abstract: Apparatus for delivering a plurality of different biological materials onto discrete locations on a receiving surface, as for example to fabricate an array of different biological material, includes a plurality of orifices in an orifice member, at least six delivery chambers each in fluid conducting relationship with at least one of the orifices, a plurality of reservoirs each in fluid communication with at least one of the delivery chambers, means associated with each orifice for propelling fluid through the associated orifice from the delivery chamber that is in fluid conducting relationship with the orifice, and a vent for commonly venting at least two of the reservoirs. In some embodiments the chambers and reservoirs are loaded with fluids containing selected biomolecules by drawing the selected fluids into the chambers through the orifices; in other embodiments the fluids are introduced into the reservoirs.

Abstract: A contactless conductivity detector uses a signal electrode arranged longitudinally between two ground electrodes. Conveniently, the ground electrodes can be integral with a metal housing that electrically shields the detector electronics from external electrical noise. The ground electrodes are defined at the locations where a capillary separation channel extends through the housing. The signal electrode is coupled to an AC transmitter through a sense resistor; the signal electrode is also coupled to a receiver that provides an output corresponding to the magnitude of the AC signal developed at the signal electrode. The signal electrode is located at a voltage-divider node between the sense resistor and the resistances of the sample fluid between the signal electrode location and the ground electrode locations. Thus, the signal developed at the signal electrode reflects the sample fluid resistance, which is the inverse of its conductivity.

Abstract: A comparative conductivity detection system includes a sample channel assembly and a reference channel assembly. The sample channel assembly includes a sample-fluid channel, a drive electrode, and a detection electrode. The reference channel assembly includes a reference fluid channel, a drive electrode, and a detection electrode. The channels are formed as trenches in a planar substrate. Each electrode is capacitively coupled to its respective channel through a planar cover over the substrate. The drive electrodes are driven anti-synchronously (180° out of phase), while the signals induced in the detection electrodes are summed. The summed detection signal indicates the comparative conductivity of the sample and reference fluids. The reference fluid can, for example, include non-sample components of the sample fluid so that artifacts due to the non-sample components are cancelled in the comparative conductivity detector output.