Abstract: This invention relates to parallel architecture digital filter and signal receiver with spectrum spreading using such a filter, the filter may have p shift registers (Rp, Ri) with means for calculating a weighted sum of stored samples in the registers, p weighted sums (Skp, Ski) may be obtained and recombined with number p being, for example, equal to 2.

Abstract: A system for providing realistic sensation within a simulation system by providing tactile (haptic) feedback to a user. The system includes an engageable practice tool that the user engages and a mechanical simulation apparatus coupled to the practice tool. The mechanical simulation apparatus includes a ground member, a mechanical linkage rotatably coupled to the ground member, a linear axis member coupled to the practice tool and the mechanical linkage, at least four actuators coupled to the ground member, sensors for sensing movement of the actuators, and at least three cables in contact with the at least four actuators and coupled to the mechanical linkage. An interface device is coupled to the simulation apparatus and a host computer is coupled to the interface device for implementing an application program. The application program provides signals for the actuators to move the cables and thereby move the mechanical linkage.

Abstract: An intrusion detection system detects and takes appropriate action against intrusion attacks on packets transmitted on a network. Various conditions for the intrusion attacks are described in the form of a rule tree. The intrusion detection system employs a pipelined structure including a plurality of modules, and parts of the rule are assigned to the modules. The modules determine in a pipelined manner whether the conditions of an intrusion attack are satisfied. In an intrusion attack on the packet is detected, the intrusion detection system takes appropriate action against the determined intrusion attack.

Abstract: A multi-band antenna system for a portable communications device (e.g. a PC Card wireless modem) is disclosed. The multi-band antenna system comprises a dipole antenna, a reactive circuit, and transmission means coupled between the reactive circuit and the dipole antenna. For signals having frequencies within a first frequency band (e.g. the CDMA 0.86 GHz band), the reactive circuit operates as a trap, i.e. as a substantially high impedance, which enables a radiation impedance of a monopole formed by the presence of the trap to be coupled directly into the feed system (e.g. a diplexer) of the antenna system. The dipole antenna is configured and dimensioned to receive signals within a second frequency band (e.g. the PCS 1.92 GHz band). Second frequency band signals received by the dipole antenna are conducted through the signal conductor of the transmission means to the feed system substantially unimpeded by the reactive circuit.

Abstract: The present invention permits safeguarding of private data entered into a memory chip of a cell phone by permitting the cell phone owner to erase the data in a lost or stolen phone, using an preset erase code and erase command in the cell phone or the network base station, and disabling or erasing circuitry on the memory chip, preferably an EEPROM chip.

Abstract: Apparatus and methods for transmitting power over non-adjacent multiple conducting pairs and aggregating power from the conducting pairs to power a remote electronic device. In an embodiment, the apparatus and method comprises a wiring closet which has power supplying capabilities for providing power to a plurality of conducting pairs. A remote termination is adapted to aggregate power provided to and transmitted by two or more non-adjacent conducting pairs. The aggregated power is supplied to a remote electronic device. Preferably, a plurality of power circuits provide power to the conducting pairs. Preferably one or more rectifier circuits aggregate power from the non-adjacent pairs to the remote electronic device.

Abstract: A digitizing system and rotary table for determining the three dimensional geometry of an object is described. An apparatus includes at least one sensor that detects information describing the three-dimensional geometry of the object and provides the information to a host computer. A rotary table includes a base and a turntable rotatable about an axis positioned perpendicularly to the turntable surface. The turntable and object on its surface rotate about the axis, during or between the sensor detecting the information describing the three-dimensional geometry of the object. A turntable sensor coupled to the base measures the rotation of the turntable, where the turntable sensor outputs turntable data indicative of the rotation to the host computer.

Abstract: Signal detection having superior resistance with respect to feature distortions is realized. Reference and input feature time-series signals, each consisting of feature vectors, are respectively obtained from reference and input time-series signals. The reference and input feature time-series signals are respectively converted into reference and input coded time-series signals, each consisting of codes indicating classifications. A distortion is added to at least one signal of the reference and input time-series signals, the reference and input feature time-series signals, and the reference and input coded time-series signals. The degree of similarity between the reference time-series signal and a collation portion determined in the input coded time-series signal is calculated based on their histograms.

Abstract: Methods of and apparatuses for matching the signal delay, clock timing, frequency response, gain, offset, and/or transfer function of signal pathways in electrical circuits such as, for example, time-interleaved and pipelined circuits using analog-valued floating-gate MOSFETs are disclosed. The methods and apparatuses disclosed are applicable to a variety of circuits, including but not limited to, sample-and-hold or track-and-hold circuits, quadrature mixers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), analog or digital filters, and amplifiers.

Abstract: A tape drive is provided having a pair of stationary guide assemblies disposed symmetrically about the magnetic read/write head. Each of the stationary guide assemblies has a mounting portion and a separate guide surface portion mounted on the mounting portion. The mounting portion may be made of a plastic and the guide surface portion of a ceramic, for example. A spring arrangement with pressure pads is mounted directly on the mounting portion, and applies pressure to a top edge of a tape during guiding of the tape.

Abstract: A control word generator comprised of circuitry to generate a control word to control an attenuator. The control word generator includes a counter that increments at a clock rate much higher than the refresh rate at which the error signal is recalculated. The counter is controlled by a comparator which compares the error signal to a reference value, which, starting from a programmable upper limited is decremented in the counter's incrementation rate by a programmable step size. When the reference value equals the error signal, the comparator changes state and the counter stops incrementing. The count at that time is the control word, which if everything operated instantaneously, would be the control word that would alter the attenuation sufficiently to achieve nominal power.

Abstract: A pipelined digital data receiver for a cable TV headend which is capable of receiving DOCSIS 1.0 or 1.1 or advanced PHY TDMA or SCDMA bursts having programmable symbol rates and programmable modulation types as well as a host of other burst parameters such at Trellis code modulation on or off, scrambling on or off, various values for Reed-Solomon T number and codeword length. The receiver has an RF section to filter and digitize incoming RF signals. It also has an input section to detect impulse noise and do match filtering and despread SCDMA bursts. A timing recovery section recovers the symbol clock and detects the start of bursts and collisions. A rotational amplifier and equalizer calculate and track gain, phase and frequency offsets and correct symbols and calculates equalization coefficients. A decoder section decodes TCM and non TCM bursts, and a Reed-Solomon decoder section reconstructs RS codewords and uses them to error correct the payload data.

Abstract: RFID readers exchange information with RFID tags. The information is encoded for transmission and decoded upon reception. Encoding is in binary bits, which are in turn encoded in waveform segments. The last transmitted waveform incorporates an ending-triggering transition, and terminates in a preset manner with respect to when the ending-triggering transition occurs. Parsing while decoding can happen by waiting for the ending-triggering transition, and then waiting according to the preset manner. This way there is no ambiguity in the ending of the waveform, and no End Frame is necessary.

Abstract: The device according to the present invention comprises a furnace (10) provided with heating means allowing said material to be crystallised to be rendered liquid, then to be cooled until it progressively solidifies. The device also comprises reception means (20) of the material (21) disposed in the furnace, fixed relative to the furnace and situated such that the material is in the intermediary zone. The heating means (11, 12, 13) supply three heating zones: a hot zone (16), an intermediary zone (15) and a cold zone (14). Thermally conductive means (17) are disposed between the reception means (20) and the heating means (11, 12, 13) and extend from the cold zone as far as the hot zone.

Abstract: The system permits two tubular parts (1, 2) to be assembled, the assembly being able to be locked or released, without a cumbersome device being required. It includes in particular a toothed crown (10, 20) on each of the two tubular parts (1, 2), each with a series of teeth (11, 21) disposing of straight radial shoulders (12) on the first toothed crown and angled shoulders (22) on the second toothed crown. This assembly is completed by a locking ring (30) disposing of teeth (31) designed to fit between the shoulders (12, 22) of the two crowns, once they have interlocked. Turning the locking ring (30) allows, using the angled locking faces (33) of the teeth (31), the two tubular parts (1, 2) to be locked together. A locating ring (40) may be used to center the parts and receive the shear loads due to a transversal mechanical change. The system may be applied for large tubular part assemblies that need to be dismantled.

Abstract: A method and apparatus for detecting data modifications in MIB tables utilizes a network device having a table registrar, a notification controller, a table modification recorder and a row modification recorder. A Network Management System (NMS) registers a table to be monitored with the table registrar and enables the notification controller when observation of change notifications is desired. With the assistance of a modification count and a timestamp from the table modification recorder, the NMS can determine whether a modified row should be retrieved from the row modification recorder to find data that has been modified since the last poll.

Abstract: A manufacturing method enables the manufacture of a remotely controlled network device management system. The manufacturing method includes the steps of obtaining a software program, obtaining a downloadable unit (e.g. an applet) configured to communicate with the software program, compiling the software program into a binary file, embedding the downloadable unit into the binary file, and loading the binary file with the embedded downloadable unit onto the network device. A management method enables a remote client to manage the network device. The management method includes the steps of receiving from a remote client a request to manage a software program which has a binary file with an embedded downloadable unit, locating the downloadable unit embedded in the binary file, extracting the downloadable unit from the binary file, and forwarding the downloadable unit to the remote client.

Abstract: A method produces a microstructure comprising an island of material confined between two electrodes forming barriers, the island (30) of material having lateral flanks running parallel to and lateral flanks running perpendicular to the barriers, wherein the lateral flanks of the island are defined by etching of at least one layer (16), called the template layer, and the barriers are formed by damascening. The method includes (a) a first etching of the template layer using a first etching mask having at least one filiform part, and (b) a second etching of the template layer, subsequent to the first etching, using a second etching mask also having at least one filiform part, oriented in a direction forming a non-zero angle with a direction of orientation of the filiform part of the first mask, in the vicinity of the site of formation of the island.

Abstract: A process for permitting defects or stresses in a structure to be revealed, including (a) securing by molecular bonding of a face of a first element containing crystalline material with a face of a second element containing crystalline material, so that the faces have offset crystalline lattices, the securing causing the formation of a lattice of crystalline defects and/or stress fields in a crystalline zone next to the securing interface, and (b) reducing the thickness of one of the elements until at least a thin film is obtained which adheres to the other element, along the securing interface to form the structure, the thickness of the thin film being such that its free face does not reveal the crystalline defect lattice and/or the stress fields, but allowing to perform (c) treatment of the thin film resulting in that its free face reveals the crystalline defect lattice and/or the stress fields.

Abstract: A method and apparatus for protecting secured files stored on a file system employs a file security status associated with each file to signal whether or not access to the file is allowed. The file security status is stored in a fixed location in memory. Upon opening the associated file, the file security status is copied to a second location in memory. Depending upon the file security status stored in the second location, operations on the file by a client are either allowed or denied. Operations on non-secure files are always allowed. Operations on secured files are allowed only after verification of the client's authorization to access the file and the subsequent modification of the file security status stored in the second memory location. The method protects secured files from deletion by unauthorized clients. This is accomplished by, upon opening a secure file, initializing a third memory location to a value indicating that the file will not be deleted upon closing.