Abstract: Illustrative embodiments of impact tools with impact mechanisms rigidly coupled to electric motors are disclosed. In at least one illustrative embodiment, an impact tool may comprise an impact mechanism, an electric motor, and a control circuit. The impact mechanism may comprise a hammer and an anvil, the hammer being configured to rotate about a first axis and to periodically impact the anvil to drive rotation of the anvil about the first axis. The electric motor may comprise a rotor that is rigidly coupled to the impact mechanism, the electric motor being configured to drive rotation of the hammer about the first axis. The control circuit may be configured to supply a current to the electric motor and to prevent the current from exceeding a threshold in response to the hammer impacting the anvil.

Abstract: The present disclosure describes systems and methods for mapping a planar surface to a curved surface. One such method comprises providing a planar lattice pattern having identical regular polygon shapes which can be truss support modules for supporting a curved surface structure. Method further include determining respective positions of the nodal points of the identical polygon shapes by placing a starting nodal point on an axis of symmetry of the planar lattice pattern and iteratively positioning each nodal point in relation to already placed neighboring nodes to make a distance between a currently positioned nodal point optimally close with a set value of the planar lattice pattern. Method still further comprises forming a curved lattice pattern of the truss support module based on the positions of the nodal points of the identical polygon shapes.

Abstract: Methods and systems to control stacked hexapod platforms for use as tools, which function with both high accuracy and high precision are provided. In some embodiments, the methods and systems include a convergence of modern control theory, and machine learning. Furthermore, some embodiments provide control algorithms to carry out autonomous in-space assembly operations using assemblers. Some embodiments provide methods and systems which combine long-reach low precision manipulators and smaller, high-precision assembler with interchangeable tools.

Abstract: The invention provides systems and methods that operate to provide seamless roaming to a prepaid subscriber in as many markets as possible. To that end, the systems of the invention include a location register (LR) that can determine the type, or class, of serving market with which the roaming subscriber is registering. Once the class of the serving market is identified, the LR can modify a subscriber's profile as a function of this class, and return to the serving market a profile that will allow the serving market to employ the prepaid platform that services the subscriber and thereby provide services to the roaming subscriber. In optional embodiments, the LR may also respond to location requests from the prepaid platform. The location information may be employed by the subscriber to determine a rate structure for a call, and thereby decrement the subscriber's balance as a function of, at least in part, the location of the roaming subscriber.

Abstract: A system and method for allowing wireless carriers to implement intelligent spending-limited products to their post-paid subscribers. The system and method can be deployed separate from but cooperative with legacy billing environments or integrated with a carrier's billing and customer care suite. The system reduces latency in collecting and rating event-related data for roaming and local spending limits subscribers, enables selective deployment of real-time subscriber management based upon a carrier-definable threshold matrix, provides proactive messaging premised upon various account-related metrics, and enables the acceptance and immediate crediting of subscriber payments.

Abstract: The invention comprises a method for determining the hole or electron concentration, transition temperature, ratio T.sub.c /T.sub.c (max), or state of doping of a material capable of exhibiting superconductivity when cooled below its critical temperature, by measuring the thermopower of a sample of the material above the critical temperature of the material and determining from the thermopower the hole or electron concentration, transition temperature, ratio T.sub.c /T.sub.c (max), or state of doping of the material as to whether it is underdoped, overdoped or optimally doped. The sample may be differentially heated and/or cooled to generate a temperature difference across the sample, the temperature difference across the sample measured, the voltage across the sample measured, and the hole concentration or similar determined from the measured temperature difference and the measured voltage. Means for determining the hole concentration, transition temperature, or doping of the material is also claimed.

Abstract: This apparatus operates to discern temporal and spatial anomalies in the use of subscriber numbers in the cellular mobile telephone system. The detection of such anomalies is typically indicative of attempted fraudulent access to the cellular mobile telephone system via cloning of valid subscriber numbers. The detection of a bogus subscriber unit is accomplished by recording the call origination and termination patterns associated with the subscriber number. The cloning detection apparatus makes use of call origination data to identify concurrent call originations or receptions for a single subscriber number. However, such events represent only a small portion of the fraudulent calls and a more extensive analysis is typically required to identify subscriber number cloning. This further analysis includes a spatial analysis of successive call activity for a subscriber number.

Abstract: A portable advertising sign is positioned in proximity to a street and includes a message board. A low power transmitter is physically secured to the sign and generates a modulated RF output signal at a predetermined frequency within the broadcast band. An antenna colocated with the sign is coupled to the transmitter and radiates the transmitter output signal. A cassette tape player is positioned in a secure area physically spaced apart from the sign by a substantial distance and includes a colocated power supply for supplying a DC voltage. A cable conveys the audio output signal from the tape player and the DC voltage from the power supply to the transmitter. The sign message board displays the operating frequency of the transmitter to vehicles passing by the sign.

Abstract: A heart pacer connector assembly for two bipolar electrode lead proximal terminations, each having a forward pin contact and a rearward annular ring contact. Two in-line pairs of metallic termination blocks are connected by four wires to respective lead-through terminals. At least two fluid-insulating, metal-free plastic parts (molded without embedding termination blocks in them) are then slid on the assembly to insulate the termination blocks and to provide a pair of insertion bores for the proximal terminations. The plastic parts are shaped to lock onto capped studs provided on the case, and the plastic parts are sealed to each other. Each termination block for an annular ring contact may consist of a simple hollow cylinder having three equally spaced circumferential cuts, with a contact wire being wrapped around the cylinder, sitting in the cuts and extending into the cylinder bore, and being connected directly to the respective terminal.