Abstract: The design of a Global Navigation Satellite System (GNSS) antenna requires consideration of a range of characteristics including, for example, the ability for tracking satellites at low elevation, phase centre variation (PCV), antenna efficiency and impedance, axial ratio and up-down ratio (UDR), antenna bandwidth, etc. whilst also providing a light weight, compact and robust form factor. For rover applications this becomes particularly important when the satellites being accessed may be at low elevations where prior art GNSS antenna exhibit poor performance. To address this a GNSS antenna is provided comprising a domed array of opposed metallized antenna elements which are indirectly coupled via a pair of dipoles to the feed network thereby avoiding the difficulties associated with direct electrical connections of feed circuits to antenna elements.

Abstract: The design of a Global Navigation Satellite System (GNSS) antenna requires consideration of a range of characteristics including, for example, the ability for tracking satellites at low elevation, phase centre variation (PCV), antenna efficiency and impedance, axial ratio and up-down ratio (UDR), antenna bandwidth, etc. whilst also providing a light weight, compact and robust form factor. For rover applications this becomes particularly important when the satellites being accessed may be at low elevations where prior art GNSS antenna exhibit poor performance. To address this a GNSS antenna is provided comprising a domed array of opposed metallized antenna elements which are indirectly coupled via a pair of dipoles to the feed network thereby avoiding the difficulties associated with direct electrical connections of feed circuits to antenna elements.

Abstract: The present disclosure provides an perforating device for use within a wellbore. The perforating device comprises a center member having a length, an expansion tool positioned about the center member along at least a portion of the length, and a plurality of perforating guns positioned about the expansion tool, each of the plurality of perforating guns configured to carry one or more explosive shaped charges. The expansion tool is configured to move the plurality of perforating guns radially outward toward a wellbore target of a wellbore it is configured to be positioned within.

Abstract: The present disclosure provides an perforating device for use within a wellbore. The perforating device comprises a center member having a length, an expansion tool positioned about the center member along at least a portion of the length, and a plurality of perforating guns positioned about the expansion tool, each of the plurality of perforating guns configured to carry one or more explosive shaped charges. The expansion tool is configured to move the plurality of perforating guns radially outward toward a wellbore target of a wellbore it is configured to be positioned within.

Abstract: A resource allocation tool and method are provided for allocating resources between parties in a separation. The resource allocation tool includes a processor, configured to determine a target distribution of the resources between the parties; and a graphical user interface, configured to enable the parties to interactively define a distribution of the resources between the parties. The processor is further configured to compare the interactively defined distribution of resources with the target distribution of resources, and provide feedback based thereon to enable the parties to iteratively define the distribution of the resources.

Abstract: A perforating gun string may include a first perforating gun; a second perforating gun axially offset from the first perforating gun; a connector configured to interpose and couple the first and second perforating guns; and a detonation cord that passes axially through a central bore of the connector; and is connected to the first and second perforating guns. In some instances, the connector may have a body with an inner surface that defines the central bore, wherein the body has a ratio of an average diameter of the outer surface to an average diameter of the inner surface of about 1.2 to about 4.

Abstract: A perforating gun string may include a first perforating gun; a second perforating gun axially offset from the first perforating gun; a connector configured to interpose and couple the first and second perforating guns; and a detonation cord that passes axially through a central bore of the connector; and is connected to the first and second perforating guns. In some instances, the connector may have a body with an inner surface that defines the central bore, wherein the body has a ratio of an average diameter of the outer surface to an average diameter of the inner surface of about 1.2 to about 4.

Abstract: The present inventors, devised among other things, an exemplary method of researching provisions of contracts. The exemplary method entails receiving user selection of one or more predefined queries for contractual precedents, and executing a search of one or more databases containing agreements based on the received user selection. After executing the search, the method entails displaying a subset of the search results based on a predefined filter stored in association with an identifier for the user. The predefined filter may filter based on traits such as jurisdiction, deal size, industry, or a list of companies.

Abstract: The present inventors, devised among other things, an exemplary method of researching provisions of contracts. The exemplary method entails receiving user selection of one or more predefined queries for contractual precedents, and executing a search of one or more databases containing agreements based on the received user selection. After executing the search, the method entails displaying a subset of the search results based on a predefined filter stored in association with an identifier for the user. The predefined filter may filter based on traits such as jurisdiction, deal size, industry, or a list of companies.

Abstract: The present inventors, devised among other things, an exemplary method of researching provisions of contracts. The exemplary method entails receiving user selection of one or more predefined queries for contractual precedents, and executing a search of one or more databases containing agreements based on the received user selection. After executing the search, the method entails displaying a subset of the search results based on a predefined filter stored in association with an identifier for the user. The predefined filter may filter based on traits such as jurisdiction, deal size, industry, or a list of companies.

Abstract: Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and steer beam nulls, such that each transmitted signal is substantially decoupled from all other signals between a MIMO transmitter a MIMO receiver. In another embodiment, the weights are selected such that, the signal strength of each weighted signal transmitted through a communications channel along a respective signal path is substantially equivalent, but for which the weighting vectors are not necessarily orthogonal. In a further embodiment, each transmitted signal is coupled only between its own transmitter and receiver antennas with a gain, or eigenvalue, that is a consequence of the weights, and which is bounded to within a desired range of values while at the same time the weighing vectors are orthogonal. Embodiments employing various decomposition techniques are also provided.

Abstract: Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and steer beam nulls, such that each transmitted signal is substantially decoupled from all other signals between a MIMO transmitter a MIMO receiver. In another embodiment, the weights are selected such that, the signal strength of each weighted signal transmitted through a communications channel along a respective signal path is substantially equivalent, but for which the weighting vectors are not necessarily orthogonal. In a further embodiment, each transmitted signal is coupled only between its own transmitter and receiver antennas with a gain, or eigenvalue, that is a consequence of the weights, and which is bounded to within a desired range of values while at the same time the weighing vectors are orthogonal. Embodiments employing various decomposition techniques are also provided.

Abstract: Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and steer beam nulls, such that each transmitted signal is substantially decoupled from all other signals between a MIMO transmitter a MIMO receiver. In another embodiment, the weights are selected such that, the signal strength of each weighted signal transmitted through a communications channel along a respective signal path is substantially equivalent, but for which the weighting vectors are not necessarily orthogonal. In a further embodiment, each transmitted signal is coupled only between its own transmitter and receiver antennas with a gain, or eigenvalue, that is a consequence of the weights, and which is bounded to within a desired range of values while at the same time the weighing vectors are orthogonal. Embodiments employing various decomposition techniques are also provided.

Abstract: The present inventors, devised among other things, an exemplary method of researching provisions of contracts. The exemplary method entails receiving user selection of one or more predefined queries for contractual precedents, and executing a search of one or more databases containing agreements based on the received user selection. After executing the search, the method entails displaying a subset of the search results based on a predefined filter stored in association with an identifier for the user. The predefined filter may filter based on traits such as jurisdiction, deal size, industry, or a list of companies.

Abstract: The invention relates to the field of electronics, more particularly to the wire bonds incorporated into an integrated circuit package such as a quad flat pack. a ball grid array or hybrid style module. The present invention takes the normally undesirable wire bond inductance and uses it in an operational circuit where positive inductance is required. The circuit in which the wire bond inductance is used is located primarily in the integrated circuit die housed in the integrated circuit package, but may also include off-die components. In one example, a wire bond is used as the required series inductance in a discrete circuit impedance inverter which consists of two shunt-to-ground negative inductances and one series positive inductance. One of the negative inductances is located on-die, while the other is located off-die.

Abstract: Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and steer beam nulls, such that each transmitted signal is substantially decoupled from all other signals between a MIMO transmitter a MIMO receiver. In another embodiment, the weights are selected such that, the signal strength of each weighted signal transmitted through a communications channel along a respective signal path is substantially equivalent, but for which the weighting vectors are not necessarily orthogonal. In a further embodiment, each transmitted signal is coupled only between its own transmitter and receiver antennas with a gain, or eigenvalue, that is a consequence of the weights, and which is bounded to within a desired range of values while at the same time the weighing vectors are orthogonal. Embodiments employing various decomposition techniques are also provided.

Abstract: A multi-channel RF receiver uses an image rejection mixer (e.g. double quadrature mixer) in the IF down conversion stage for image side band rejection (whereby use of an IF narrow band filter for image rejection may be omitted if desired) and comprises a simplified frequency synthesizer which generates both a “wandering” IF oscillator frequency and an RF oscillator frequency for the up/down conversion stages (being, for down conversion, from RF to IF and from IF to base band. The IF used for a particular RF carrier (channel) is selected so as to be both an integer (N) sub-harmonic of that RF carrier and within the operating frequency band of the image rejection mixer. Advantageously, the synthesizer comprises only one loop and one VCO, wherein the IF oscillator signal is produced from the RF oscillator signal by means of a frequency divider.

Abstract: Circuits and methods are provided for use in a wireline or wireless transmitter to complement the digital generation of non-constant envelope modulation signals therein. A digital signal processor is configured for deconstructing a predetermined signal having an undesirable property into one or more fragment signals which do not have the undesirable property. In a preferred embodiment the predetermined signal is preconditioned by applying a preconditioning deconstruction process to another signal from which the predetermined signal is derived, whereby that other signal is deconstructed into one or more preconditioned fragment signals having an improved property over the other signal. For OFDM modulation schemes this undesirable property may be a relatively high peak-to-average power ratio. Signals formed from the fragment signals are subject to conversion to analog signals and processing by power efficient, dynamic-range limited analog circuits i.e.

Abstract: Disclosed is a tuned circuit tuned to an input signal having a predetermined radio frequency, the tuned circuit comprising a tank circuit having a loaded ring oscillator circuit with a resonant frequency corresponding to said radio frequency. The tank circuit is configured for a predetermined frequency that the tuned circuit is designed for. In the case wherein the tuned circuit is in CMOS 0.18 ?m technology, the tuned circuit is configured for a frequency of up to 7 GHz. The tank circuit may be in the form of an integrated circuit having a size of not more than 200 ?m by 200 ?m. The tank circuit may form part of a low-noise amplifier or part of a mixer.

Abstract: A multi-channel RF receiver uses an image rejection mixer (e.g. double quadrature mixer) in the IF down conversion stage for image side band rejection (whereby use of an IF narrow band filter for image rejection may be omitted if desired) and comprises a simplified frequency synthesizer which generates both a “wandering” IF oscillator frequency and an RF oscillator frequency for the up/down conversion stages (being, for down conversion, from RF to IF and from IF to base band. The IF used for a particular RF carrier (channel) is selected so as to be both an integer (N) sub-harmonic of that RF carrier and within the operating frequency band of the image rejection mixer. Advantageously, the synthesizer comprises only one loop and one VCO, wherein the IF oscillator signal is produced from the RF oscillator signal by means of a frequency divider.