Abstract: A telemetric system includes a telemetric implant, a reader unit adapted to read signals from the telemetric implant, and an antenna adapted for connection to the reader unit and to receive signals from the telemetric implant. The antenna has a first coil, a second coil, and a connector. The first coil is electrically connected to the second coil, and the connector allows for movement of the first and second coils relative to each other. The antenna may be used to send radio-frequency power to the telemetric implant and receives data from the telemetric implant.

Abstract: A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

Abstract: In an access control system, a method and system for dynamic channel selection to select a channel for communication between a Wireless Access Point Module (WAPM) and a Wireless Panel Interface Module (WPIM). A number of communication channels are available. The WAPM attempts to communicate over a first channel and selects a second channel if the first channel is unsuccessful. The WPIM scans all the available channels so that communication may be established regardless of the channel chosen by the system. Alternatively, the available channels may be segmented into groups and an individual WAPM may be assigned to a group of channels rather than a single channel.

Abstract: A method and system are given for a coupling a data signal over a power distribution system. An inductive signal coupler has two windings. The first winding is in series with a line conductor of the power distribution system. A capacitor is connected between the first line conductor and a second line conductor of the distribution system such that the capacitor presents a high impedance to a power signal and a low impedance to a data signal. A communication device is connected to the second winding so that a data signal can be coupled between the communication device and the distribution system.

Abstract: A power control system method for controlling the downlink (DL) transmit power from a base station (BS) to a mobile station (MS) in a cellular telecommunications network. A power balancing value &Dgr;P is divided into a number of smaller correction implements which are distributed over a plurality of spaced apart slots for DL power control. For example, if it is desired to correct DL transmit power by six dB, a total of six different correction values of one dB each may be implemented with adjacent ones of the correction values being spaced apart by a number of slots. The distribution or spreading of DL transmit power corrections over a period of time results in a plurality of smaller corrections as opposed to one or a few large corrections, thereby reducing potential adverse effects on the inner loop power control of the network.

Abstract: An instrument for the manipulation of fine structures, said instrument detecting hand tremor and compensating for this hand tremor by effecting counter-movements of the working tip. The main area of application will probably lie in the field of microsurgery, since the operations performed in said field can be made difficult by the hand tremor of the operating surgeon. Here, the tremor is detected by movement sensors, by repeated analysis of the position of the handheld part (1) of the instrument, or by deriving electromyographic signals from the forearm of the operator. Intentional and unintentional movements are differentiated from one another on the basis of one or more criteria, such as movement amplitude, speed, frequency and direction. To compensate for undesired movements, signals are sent to an arrangement of actuators (3) which cause deflections of the movable part (4) of the instrument, which deflections at the tip of the instrument compensate for the hand tremor.

Abstract: At a transmitter of a communication system, a target signal and a primary coded signal are produced in response to an input signal. The primary coded signal is intended to match the target signal. Also produced is encoded enhancement information indicative of how closely the primary coded signal matches the target signal. At a receiver, the primary coded signal is reconstructed, the encoded enhancement information is decoded, and an enhanced reconstructed signal is produced by applying the decoded enhancement information to the reconstructed primary coded signal.

Abstract: A communication circuit is designed with a processing circuit (11) coupled to receive a plurality of first control signals (402, 408) from a source external to the communication circuit. The processing circuit produces a second control signal (432, 434) and a second power control (422, 436) signal during each of a plurality of predetermined time periods. The second power control signal is determined by a corresponding first control signal from said plurality of first control signals. The second power control signal is produced proximate the second control signal. A serial circuit is coupled to receive the second control signal and the second power control signal during a respective predetermined time period. The serial circuit produces the second control signal proximate the second power control signal.

Abstract: An interactive computer controlled management system for real-time data gathering and analysis of process information relating to a plurality of data sources in a facility and for controlling process functions of the data sources. In a preferred embodiment, the data sources include gas cabinet panels and related process equipment typically found in a wafer fab facility. The system operates in a distributed processor environment and includes a host processor having graphic, control and user interfaces and a multi-ported processor networked to the host processor. The multi-ported process includes protocol sensitive hardware interfaces for communication with the programmable logic controllers of each particular data source. The multi-ported processor also includes software means for emulating a common protocol such that each gas cabinet or other connected device appears to the host processor as an address location in a memory of the multi-ported processor.

Abstract: In a signal transmission system whose transmission line (16) is connected to a line side component (66, 68) of a respective transmitter (12) and receiver (14) and is electrically isolated from the operating side, the line side component (66, 68) of the respective transmitter (12) and receiver (14) is powered from the operating side over through an isolating DC/DC-transducer (10).

Abstract: An asynchronous one way digital data communication system is disclosed in which a first microcomputer produces a series of groups of pulses at a first port representative of digits in an information packet to be transmitted, the groups being separated by strobe pulses at a second port. The pulses drive switches in two current paths to control current therethrough supplied by a receiver module including a second microcomputer having a serial input port connected to an internal counter and an interrupt port. Current detectors supply pulses corresponding to currents in the paths to the serial input and interrupt ports, from which the second microcomputer reproduces the information packet.

Abstract: A control device suitable for synchros comprising three stator windings. The device comprises four circuit branches with the inputs of the first and the second branches interconnected to receive a first voltage from the ends of the stator windings of the synchro transmitter and with the inputs of the third and the fourth branches interconnected to receive a second voltage from the ends of the stator windings of the synchro transmitter. Two adder elements supply control voltages to the stator windings of the synchro receiver. Two inputs of the first adder are connected to the outputs of the first and the third branches, respectively and the two inputs of the secnd adder are connected to the outputs of the second and the fourth branches. These branches have transfer functions in the form sin (.alpha.+.phi.1), sin (.alpha.+.phi.2), sin (.alpha.+.phi.3), sin (.alpha.+.phi.4), respectively, wherein .alpha. represents the information supplied by a digital element and .phi.1, .phi.2, .phi.3, .phi.

Abstract: A periodically energized luminous element mounted on a body undergoing cyclic movement at a high speed producing periodic illumination at a frequency exceeding the fusion frequency of the human eye. The interval duration of said periodic illumination results in perception thereof as a permanent visual display disposed at a fixed location along the travel path of the body corresponding to a physical value to be represented.