Patents Represented by Law Firm David Newman & Associates
-
Patent number: 5517656Abstract: A multicomputer system and method for automatic sequential-to-parallel program partition, scheduling and execution. The plurality of computer are connected via a uni-directional slotted ring (backbone). The ring supports, with deterministic delays, point-to-point, broadcast and EXCLUSIVE-READ operations over labeled tuples. The execution of parallel programs uses a connectionless computing method that forms customized coarse grain SIMD, MIMD and pipelined processors automatically using the connected multicomputers. The disclosed multicomputer architecture is also resilient to processor and backbone failures.Type: GrantFiled: June 11, 1993Date of Patent: May 14, 1996Assignee: Temple University of the Commonwealth System of Higher EducationInventor: Yuan Shi
-
Patent number: 5515194Abstract: An optical interconnect for use with SIMD processors, including holographic-optical elements, dove prisms, beamsplitters and a processor. Laser diodes, with each operating at a different wavelength, generate coherent-light beams at different wavelengths. A fiber combiner, an optical fiber and a fiber splitter are connected to divide output light from the laser diodes into equal path lengths. The output light is modulated by data from a respective SIMD processor. The output light forms an input ring at an input plane. Each holographic-optical element reflects only one wavelength of the output light. Dove prisms perform certain fixed interconnections. Beamsplitters reflect the light from the selected optical channel to an output-ring array.Type: GrantFiled: May 28, 1993Date of Patent: May 7, 1996Assignee: InterDigital Technology CorporationInventors: Emmanuel Kanterakis, Jian-Ming Wang
-
Patent number: 5506864Abstract: A spread-spectrum CDMA communications system for locating remote units, and for communicating message data between a plurality of remote units and a base station. The spread-spectrum CDMA communications system includes a plurality of base stations and a plurality of remote units. A base station has a spread-spectrum modulator for spread-spectrum processing the message data, and a transmitter for transmitting the spread-spectrum processed-message data, combined with a generic-chip-code signal, from the base station to a remote unit. The base station also has an antenna, and spread-spectrum detectors for recovering message-data communicated from the remote-units. A remote-unit has an antenna, and a detector coupled to the antenna for recovering data communicated from the base station. The detector includes a spread spectrum demodulator. Also, the remote unit has a device for converting the format of the data into a form suitable for communicating over radio waves, a spread spectrum modulator and a transmitter.Type: GrantFiled: September 23, 1994Date of Patent: April 9, 1996Assignee: InterDigital Technology CorporationInventor: Donald L. Schilling
-
Patent number: 5486874Abstract: A video processor, having an input and an output, for compensating for accumulated phase and amplitude errors encountered during transmission of a video signal over a communications channel. The video processor includes a high-pass filter and amplifier, coupled to the input; a post-correction-phase-and-gain restorer; a wide-band-video-delay line coupled to the input; a pre-correction-gain restorer; and a combining network, coupled to the output. The high-pass filter has a bandwidth characteristic which is approximately inverse to a low-pass characteristic encountered by the video signal during its transmission over the communications channel. The high-pass filter takes the video signal and outputs a filtered-video signal. The amplifier associated with the high-pass filter inverts the filtered-video signal. The post-correction-phase-and-gain restorer adjusts the inverted-filtered-video signal to generate a restored-video signal.Type: GrantFiled: May 13, 1994Date of Patent: January 23, 1996Assignee: Magma, Inc.Inventor: Jimmie D. Songer
-
Patent number: 5481835Abstract: A breakaway base and upper-separation joint for use with highway luminaire supports. The breakaway base, circular in cross section, has a lower-base section with a first rim, an upper-base section with a second rim, a split-ring retainer, and a perimeter band. The split-ring retainer captures the first rim of the lower-base section and the second rim of the upper-base section. The perimeter band encircles the split-ring retainer. In response to a vehicle impact with the upper-base section, the perimeter band fractures, causing disjunction of the split-ring retainer and allowing the upper-base section to separate from the lower-base section. Alternatively, the breakaway base is radial-spoked when viewed from above and has a first plurality of rims on the lower-base section, a second plurality of rims on the upper-base section, a plurality of retainer segments to engage and capture the first and second plurality of rims, and a plurality of fasteners to secure the retainer segments against the rims.Type: GrantFiled: March 19, 1993Date of Patent: January 9, 1996Assignee: Adian Engineering CorporationInventor: Jeffrey A. Bloom
-
Patent number: 5469468Abstract: A spread-spectrum satellite system for communicating data and paging messages to a plurality of remote units. The spread-spectrum communications system has a satellite with an antenna beamwidth located within a same geographical region as covered by an existing FDMA, TDMA or other mobile-satellite system. The spread-spectrum satellite system has a device for converting the format of the data into a form suitable for communicating over radio waves, a spread-spectrum modulator for spread-spectrum processing the data, and a transmitter for transmitting the spread-spectrum-processed-converted data from the satellite to a remote unit. The remote unit has an antenna and a spread-spectrum receiver for recovering data communicated from the satellite. The remote unit optionally may have a comb filter for notch filtering mobile channels of the mobile-satellite system.Type: GrantFiled: September 27, 1993Date of Patent: November 21, 1995Assignee: Interdigital Technology CorporationInventor: Donald L. Schilling
-
Patent number: 5461632Abstract: A method and apparatus for encoding and convolutionally decoding a data word of a data word sequence. Each data word has k bits. An encoder selects, using a trellis encoding algorithm and a previous data word, a 2.sup.k subset of signal points from a square set of M by M signal points having X coordinates and Y coordinates. The square set of M by M signal points includes a constellation of 2.sup.k+1 signal points. The encoder selects, using the n.sup.th data word, a signal point from the selected subset of signal points. A modulator generates a first channel symbol and a second channel symbol from the selected signal point. A demodulator demodulates the first channel symbol as a received X coordinate and the second channel symbol as a received Y coordinate. A decoder estimates, using a second processor, a 2.sup.k received subset of signal points using the convolutionally decoding algorithm and a previously received data word. The decoder estimates, an n.sup.Type: GrantFiled: June 13, 1994Date of Patent: October 24, 1995Assignee: InterDigital Technology CorporationInventors: Gary R. Lomp, Donald L. Schilling
-
Patent number: 5459759Abstract: A frequency-hopping-communications system, assigned a system bandwidth B, with the system bandwidth B divided into N sets of frequencies, with each set of the N sets of frequencies not having the same frequencies as other sets of the N sets of frequencies, for communicating base-message data to a plurality of remote units. The frequency-hopping-communications system includes a plurality of base stations for communicating base-message data to the plurality of remote units. Each of the base stations has a coverage area divided into a plurality of N concentric regions which are divided into a plurality of N sectors, with each sector of each concentric region assigned one of the N sets of frequencies.Type: GrantFiled: August 29, 1994Date of Patent: October 17, 1995Assignee: InterDigital Technology CorporationInventor: Donald L. Schilling
-
Patent number: 5455823Abstract: An integrated communications terminal including a selectable channel demodulator and decoder, a time-division-multiplexed (TDM) channel demodulator and decoder, a data processor and controller, an audio decompressor, a D/A converter, and a data coder and modulator. The terminal is used with a mobile station having a message display, an input device, RF electronics, and an optional transmitter. The selectable channel demodulator outputs a selectable intermediate-frequency signal as in-phase and quadrature-phase signals for decoding by the selectable channel decoder. The TDM channel demodulator generates a frequency offset signal and outputs in-phase and quadrature-phase TDM signals for decoding by the TDM channel decoder as a TDM-data signal.Type: GrantFiled: October 19, 1992Date of Patent: October 3, 1995Assignee: Radio Satellite CorporationInventors: Gary Noreen, Ken Renshaw
-
Patent number: 5442652Abstract: A communication system in accordance with the invention employs a broadcast signal for synchronization of the transmitters and receivers in the system without use of a special base transmitter for synchronizing signal transmissions. Each transmitter having a pre-assigned time slot counts from a synchronizing index which is inherent in or added to the broadcast signal to determine when to transmit. The receiver of receivers similarly count from the synchronizing index to determine when to look for specific time slice transmissions.Type: GrantFiled: January 25, 1994Date of Patent: August 15, 1995Assignee: InterDigital Technology Corp.Inventor: Allen G. Jacobson
-
Patent number: 5438976Abstract: This invention relates to a teeth protector for a laryngoscope blade which protector comprises at least one cushioning device of deformable material deformed around at least one selected surface of the laryngoscope blade and adapted to retain a deformed shape and having a self-adhering surface character adapted to adhere to when pressed upon the selected surfaces which surfaces correspond to surfaces which would contact a patient's teeth if the at least one cushioning device were not used. The teeth protector is adaptable for use with virtually all laryngoscope blade styles. A cushioning device comprising beeswax is particularly useful in the teeth protector.Type: GrantFiled: November 29, 1993Date of Patent: August 8, 1995Inventor: Jeanne L. Nash
-
Patent number: 5436940Abstract: M-channel pseudo-quadrature-mirror-filter (QMF) banks using a prototype filter having a linear-phase spectral-factor of a 2M.sup.th band filter. The overall transfer function of the analysis filter/synthesis filter system is a delay, and the aliasing cancellation has all the significant aliasing terms canceled. Consequently, the aliasing level at the output of the pseudo-QMF banks is comparable to the stopband attenuation of the prototype filter, with the error at the output of the analysis filter/synthesis filter system approximately equal to the aliasing error at the level of the stopband attenuation. The pseudo-QMF banks have the stopband attenuation of the analysis filters and thus synthesis filters of -100 dB. The resulting reconstruction error is also on the order of -100 dB.Type: GrantFiled: June 11, 1992Date of Patent: July 25, 1995Assignee: Massachusetts Institute of TechnologyInventor: Truong Q. Nguyen
-
Patent number: 5432904Abstract: A computer system including a processor, a display monitor and a mass storage device serving as a main memory for storing digital data. The digital data include information stored in digital form for a multiplicity of vehicles. A data base is provided of a plurality of groups of parts, a plurality of associated parts graphics, and a plurality of costs for repairing the parts and for replacing groups of parts. The method and apparatus include inputting vehicle-identification data of a damaged vehicle to the processor. The display monitor displays a list of groups of parts for the damaged vehicle. In response to selecting a particular group of parts, a parts description from the data base of the first group of parts is then displayed. A parts graphic may be displayed from the list of groups of parts, along with costs data including parts costs, repair time and painting time. The method and apparatus compare the sum of the costs for repairing a part of a vehicle versus the cost for replacing a part of a vehicle.Type: GrantFiled: November 9, 1993Date of Patent: July 11, 1995Assignee: CCC Information Services Inc.Inventor: David C. Wong
-
Patent number: 5422908Abstract: A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath. A received spread-spectrum signal is delayed with respect to a phased version of the spread-spectrum signal. The delayed spread-spectrum signal is combined with the phased version of the spread-spectrum signal. A magnitude value of the combined signal is compared with a previous-magnitude value. The delay is adjusted in response to the comparison.Type: GrantFiled: November 22, 1993Date of Patent: June 6, 1995Assignee: InterDigital Technology Corp.Inventor: Donald L. Schilling
-
Patent number: 5420896Abstract: A spread spectrum communications system for use over a communications channel, including a transmitter-generic-chip-code generator, a transmitter-message-chip-code generator, an EXCLUSIVE-OR gate, a combiner, a transmitter, a receiver-generic-chip-code generator, a receiver-generic mixer, a generic-bandpass filter, a receiver-message-chip-code generator, a receiver-message mixer, a message-bandpass filter, and a synchronous detector. The transmitter-generic-chip-code generator generates a generic-chip-code signal and the transmitter-message-chip-code generator generates a message-chip-code signal. The EXCLUSIVE-OR gate spread-spectrum processes message data with the message-chip-code signal to generate a spread-spectrum signal. The combiner combines the generic-chip-code signal with the spread-spectrum signal. The transmitter transmits the combined generic-chip-code signal and spread-spectrum signal, on a carrier signal over the communications channel as a spread-spectrum-communications signal.Type: GrantFiled: June 11, 1993Date of Patent: May 30, 1995Assignee: InterDigital Technology CorporationInventor: Donald L. Schilling
-
Patent number: 5410568Abstract: A spread-spectrum transmitter and receiver using code division multiple access with time division multiple access technology for spread-spectrum communications. At a base station, a spread-spectrum transmitter includes a multiplexer for time multiplexing a synchronization-code signal and a plurality of data signals, which may be encoded as a plurality-encoded data signals, to generate a time-multiplexed signal. A chip-code generator generates a chip-code signal which is modulo added with the time-multiplexed signal by an EXCLUSIVE-OR gate to generate a spread-spectrum-time-multiplexed signal. A transmitter transmits the spread-spectrum-time-multiplexed signal over a communications channel. A spread-spectrum receiver at the base station processes a plurality of spread-spectrum signals, received from a plurality of remote units in as time division sequence of spread-spectrum signals, using a despreader circuit to generate a time-division signal.Type: GrantFiled: November 3, 1993Date of Patent: April 25, 1995Assignee: InterDigital Technology CorporationInventor: Donald L. Schilling
-
Patent number: 5390240Abstract: A data dial system having at least one matrix switch, one or more user terminals, one or more Touch-Tone push button telephones, and at least one processor. The matrix switch can switch the user terminals between various inputs and outputs. The Touch-Tone push button telephones, each of which has a dual-tone-multiple-frequency keypad, generates signals which can actuate the processor. The processor controls the operation of the matrix switch, for switching signals between signal sources and signal destinations by establishing connections and by performing disconnections of the various inputs and outputs of the matrix switch.Type: GrantFiled: October 8, 1992Date of Patent: February 14, 1995Assignee: Williams Telecommunications Group, Inc.Inventor: Cleatus R. Sensney
-
Patent number: 5381534Abstract: A high level virtual computer in a heterogeneous hardware and software environment. A user specifies the hardware and software configuration of a virtual computer employing multiple coarse grain single instruction, multiple data (SIMD); multiple instruction, multiple data (MIMD); and pipelined parallel computing elements into a configurator, which activates a distributed process controller and supporting components in the desired virtual computer. Each processor in the virtual computer is equipped with a language injection library and runtime servers, i.e. daemons. The language injection library facilitates transference of data among the processors in the system during the execution of an application program, and isolates the details of coordinating the heterogeneous hardware and software in the virtual computer.Type: GrantFiled: February 10, 1993Date of Patent: January 10, 1995Assignee: Temple University of the Commonwealth System of Higher EducationInventor: Yuan Shi
-
Patent number: 5377222Abstract: A frequency agile spread spectrum radio system which uses a frequency-agile receiver that adaptively learns which frequencies to avoid as being occupied or jammed. The transmitter sends redundant transmissions on widely separated pseudo-random carrier frequencies to overcome jammed channels. A coded preamble is used to provide a greatly enhanced hybrid form of Time Division Multiple Access/Frequency Division Multiple Access for co-existence and frequency re-use with nearby systems. Anti-jam margins of 60 to 90 dB can be inexpensively achieved, far exceeding that of traditional direct sequence systems. The receiver scans the radio spectrum, identifies occupied portions, stores information on these occupied portions, skips over the occupied portions for a set period of time while scanning for radio signals, detects a repetitive preamble code in a received radio signal, maintains the frequency of the received radio signal, and receives and decodes message data in the received radio signal.Type: GrantFiled: August 10, 1993Date of Patent: December 27, 1994Assignee: Axonn CorporationInventor: H. Britton Sanderford, Jr.
-
Patent number: D366842Type: GrantFiled: August 31, 1994Date of Patent: February 6, 1996Inventor: Joseph L. Parlett