Abstract: An apparatus and method for compressing a sequence of frames having at least first and second information-bearing media components selects a plurality of representative frames from among the sequence of frames. The representative frames represent information contained in the first information-bearing media component. A correspondence is then formed between each of the representative frames and one of a plurality of segments of the second information-bearing media component. The representative frames, the plurality of segments of the second information-bearing media component and the correspondence between them are recorded for subsequent retrieval. If the first information-bearing media component is a video component composed of a plurality of scenes, a representative frame may be selected from each scene. Additionally, if the second information-bearing media component is a closed-caption component, a printed rendition of the representative frames and the closed-caption component may be provided.

Abstract: A method of using an algorithm to partition a multi-dimensional data set into a minimum number of rectangular-shaped partitions that can be processed more quickly than the non-partitioned data set while satisfying certain specified performance constraints.

Abstract: A method for use in a data transmission system comprises the steps of: (i) adding timing information to a serial data stream; (ii) recovering the timing information from the serial data stream to generate a plurality of clock signals associated with the timing information, each clock signal having a common frequency and a different phase associated therewith, the common frequency being less than a frequency associated with the serial data stream; and (iii) converting the serial data stream to a plurality of parallel data streams respectively using the plurality of clock signals. The timing information may be added to the serial data stream at a data transmitter portion of the system. The invention provides for various ways to add the timing information to the serial data stream, i.e., enrich the serial data stream with the timing information. This timing information is preferably phase locked to the data and has a frequency less than the serial data transmission rate.

Abstract: A Differential Phase Shift Keying (DPSK) optical transmission system provides time division multiplexing, channel routing and channel add/replace functions. The DPSK transmitter comprises a laser to generate an optical carrier signal; a delay encoder to provide a different delay for each of a plurality, M, of input signal channels; and a M channel phase modulator which phase modulates the optical carrier signal with each of the differently delayed M input signal channels to form a Time Division Multiplexed (TDM) phase modulated optical signal. A DPSK receiver demodulates a received TDM phase modulated optical signal. The system may also include apparatus to route, add, and replace TDM channels.

Abstract: A collimated-beam photonics package wherein the plurality of optical fibers and imaging devices are held in a parallel spaced array in a first holder and a plurality of surface-normal optic devices are held in a corresponding spaced array in a second holder. The first and second holders have complementary exterior features so that the first and second holders are securable to each other with the respective arrays being registered one with the other.

Abstract: The time-of-arrival of the line-of-sight component of a received, or incoming, signal is determined by performing a time/frequency analysis of the incoming signal. The term time/frequency analysis refers to an analysis of the frequency components (i.e. the frequency make-up) of the incoming signal at given instants in time. For example, one form of time/frequency analysis according to the present invention is to compare the frequency make-up of the received signal to the frequency make-up of the transmitted signal. Those points in time in which the frequency make-up of the received signal matches the frequency make-up of the transmitted signal are the instants in time at which a multipath component of the transmitted signal is received. In such a time/frequency analysis, the first-identified component, in time, is assumed to be the line-of-sight component of the transmitted signal.

Abstract: Apparatus for performing a smooth by-pass of extra Vocoders in a mobile station to mobile station connection. Vocoders are used in mobile stations using digital signals to communicate with base stations. When the vocoded signals are to be transmitted over the public switched telephone network, they are normally converted into the kinds of signals such as 64 Kb per second pulse code modulation (PCM), used in the public switched network. In accordance with one preferred embodiment of this invention, when a connection is made between two mobile units, the connection is made via a separate asynchronous transfer mode (ATM) network. Arrangements are also available to switch between the ATM network and Vocoders connected to the public switched telephone network when it is necessary to transmit a PCM signal to a land based station, or other equipment.

Abstract: Multiple, yet plausible, pronunciations of a proper name are generated based on one or more potential language origins of the name, and based further on the context in which the name is being spoken—namely, on characteristics of the population of potential speakers. Conventional techniques may be employed to identify likely candidates for the language origin of the name, and the characteristics of the speaker population on which the generation of the pronunciations is further based may comprise, for example, the national origin of the speakers, the purpose of the speech, the geographical location of the speakers, or the general level of sophistication of the speaker population.

Abstract: A vacuum collet includes at least one weight disposed in the collet for assisting in removal of components from the collet. The weights are movable within the collet to gently dislodge components lodged on a bottom face of the collet. The weights may be actuated by the same vacuum which draws components to the collet.

Abstract: A multi-access remote system having a security surveillance area, a plurality of end user locations, and a communications network such that one or more of the end user locations can establish a connection with the security surveillance area, and vice versa, using a communications protocol via the communications network. The security surveillance area is comprised of a local computer system, a camera with motion sensor, and a network interface. When the motion sensor detects an obstruction the camera starts recording and the local computer system notifies a remote individual of the alarm via a communications device, such as a beeper, telephone, or e-mail. Using an end user location, having a remote computer system, a network interface, and one or more communications devices, the remote individual can logon to the local computer system via the communications network and obtain additional information, control the video camera remotely, or view video images.

Abstract: A housing for a power supply rectifier includes an enclosure having front and rear panels, top and bottom walls, and side walls. A bracket is attached to the enclosure and includes a plurality of projections for mating with a plurality of apertures contained in one or more of the walls of the enclosure. The projections are larger than the apertures, such that when pressure is applied to the bracket, the projections are forced into the apertures to form a seal to minimize EMI emissions from the enclosure. The bracket removably mounts a fan to the housing.

Abstract: A modular digital assistant includes a base unit and a functionally specific module of a plurality of interchangeable processing or communications modules. Each functionally specific module is removably engageable with the base unit. The combined base unit and functionally specific module provides the functionality of the selected module, such as telephony, gaming, or radio or television broadcast receiving. One member of the plurality can provide telecommunication functions, such as wireline telephony or wireless telephony. Another module of the plurality of functionally specific modules can provide paging functionality. Another module of the plurality can provide card reading functions for carrying out financial transactions or providing entertainment. Yet another module of the plurality could provide video game playing functionality using a game playing input, such as a touch screen display, a trackball, or a joystick.

Abstract: A hospital-based integrated medical computer system for processing medical and patient information and for evolving medical knowledge, diagnoses and prognoses is disclosed. The system includes a medical processor including a memory and a plurality of medical data banks connected thereto. The medical processor and the medical data banks are designed to work in tandem for executing a plurality of instructions and/or obtaining information. A plurality of separate processor hardware modules are operatively connected to the medical processor. The modules include a communication module, at least one switching module, an administrative module and a knowledge module.

Abstract: In a speech recognition system capable of identifying particular words, input speech signals can be processed to detect certain patterns and word combinations. The recognition of these speech patterns and word combinations allow the speech recognition system to replace a number-driven menu, automated attendant systems. Once the speech recognition system recognizes the input speech signal, it confirms the accuracy of the identified speech pattern or word combinations with the user.

Abstract: A transceiver is disclosed for use in a wireless handset. The transceiver includes a switch for connecting an antenna, one at a time, to a receiver or to a transmitter. In a reception sub-frame, a limiting circuit switches the switch to an attenuated mode when an output signal of the receiver, such as a logarithmic RSSI signal, exceeds a predetermined value. The limiting circuit includes a comparator for comparing the logarithmic RSSI signal with the predetermined value. In addition, the limiting circuit also includes a transistor which shunts to ground a first control input of the switch when the RSSI signal exceeds the predetermined value. The limiting circuit further includes a shunt circuit to maintain the attenuated mode during a transmission sub-frame to reduce the level of a signal from the transmitter.

Abstract: An apparatus and method using selectively controlled cache/no-cache bits for improving the real-time performance of applications run on computers having cache memory by controlling the caching of different regions of address space thereby reducing thrashing or other forms of interference in the cache memory and improving the WCET performance of such applications.

Abstract: A method for increasing the interrogation range of an RF Tag in a radio communication system using RF Tags with two reflecting antenna elements. The second reflecting antenna element is predeterminately positioned, and preferably aligned, with respect to the first reflecting antenna element in the direction of expected incident RF radiation and is spaced from the first reflecting antenna element at a predetermined fixed distance. The first and second reflecting antenna elements are alternately pulsed on and off such that while the first reflecting antenna element is in a signal reflecting operating state, the second reflecting antenna element is in a substantially non-reflecting state and vice versa. The alternate pulsing and predetermined fixed spacing between the first and second elements generates a known phase difference between the reflected signals of the first and second reflecting antenna elements.

Abstract: Interpolating filter banks are constructed for use with signals which may be represented as a lattice of arbitrary dimension d. The filter banks include M channels, where M is greater than or equal to two. A given filter bank is built by first computing a set of shifts &tgr;i as D−1 t1, i=1, 2, . . . M−1, where ti is a set of coset representatives taken from a unit cell of the input signal lattice, and D is a dilation matrix having a determinant equal to M. A polynomial interpolation algorithm is then applied to determine weights for a set of M−1 predict filters Pi having the shifts &tgr;1. A corresponding set of update filters Ui are then selected as Ui=Pi*/M, where Pi* is the adjoint of the predict filter Pi. The resulting predict and update filters are arranged in a lifting structure such that each of the predict and update filters are associated with a pair of the M channels of the filter bank.

Abstract: An amplifier system includes an input circuit loop and an output circuit loop coupled to a balanced amplifier assembly. The balanced amplifier assembly provides both a nonlinear distortion signal component and a corrective precursor signal component for enhanced and virtually complete cancellation of the nonlinear distortion signal component. A phase shifter facilitates phase shifting in a feedback signal path between the output circuit loop and the input circuit loop to form a corrective signal component from the corrective precursor signal.

Abstract: An electromagnetic shield includes a multi-walled cover with a peripheral gap between inner walls and outer walls. An shielding gasket may be mounted in the peripheral gap. The electromagnetic shield further includes a fence disposed within the peripheral gap and arranged for mounting on a printed circuit board. The electromagnetic shield provides a barrier to electromagnetic signals from being radiated between an interior of the electromagnetic shield and an exterior.