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| Patent # | Description |
|---|---|
| US-5,870,461 |
On-hold messaging system and method An on-hold messaging system is provided for use with a business telephone system having an on-hold audio input. The system includes an optical disc having one or... |
| US-5,870,460 |
System for least cost routing of data transactions in a
telecommunications network A system allocates data links between a switch and a database for data transactions in a telecommunications network. The data links between the switch and the... |
| US-5,870,459 |
Recyclable cellular telephone and method and apparatus for supporting
the use of a recyclable cellular... A recyclable cellular telephone is disclosed having an inner rigid cellular electronics supporting frame member surrounded by a replaceable outer cover. The... |
| US-5,870,458 |
Automatic facsimile/data/voice switch An electronic device connecting a single telephone line conductor pair to voice, data modem, and facsimile equipment automatically detects the nature of each... |
| US-5,870,457 |
Method and system for transferring a data modem call Phone calls between data modems may be transferred without dropping the phone calls. An intermediate modem phone call is established between modems that are not... |
| US-5,870,456 |
Automated interactive bill payment system using debit cards Method and apparatus for processing payment transactions using debit card numbers without the requirement of a personal identification number (PIN) is disclosed.... |
| US-5,870,455 |
Enhanced voice services load balancing Enhanced voice services (EVS) interactively communicate with a caller so as to provide audio prompting and selection of the final termination of a call. The... |
| US-5,870,454 |
Telecommunications speech/text conversion and message delivery system An intelligent network telecommunications service allows a calling party (22) to provide a voice message which is converted by the service to a text message. The... |
| US-5,870,453 |
Automatic control system for a remotely controllable sound producing
device Electronic circuitry is provided that is operative to detect telephone usage or doorbell activation, whereupon the circuitry causes a command signal, such as a... |
| US-5,870,452 |
System and method for controlling message looping between network
elements In the proposed Local Number Portability (LNP) telecommunications network, the traditional link between the first six digits of a ten-digit dialed number and the... |
| US-5,870,451 |
Method and apparatus for high impedance ringer detection A line test system for diagnosing and segmenting faults in a switched telephone network. The system includes a remote measurement unit installed at a switch and... |
| US-5,870,450 |
Universal radiographic/fluoroscopic digital room A universal radiographic/fluoroscopic room includes a digital imaging platform adapted to occupy operating and non-operating positions. A park function... |
| US-5,870,449 |
Operator console for article inspection systems The present invention provides an inspection system having a scanner system coupled to an operator console. The scanner system is preferably an x-ray based... |
| US-5,870,448 |
X-ray mask and fabrication process using it The present X-ray mask comprises an X-ray transmitting film, and a mask pattern formed on the X-ray transmitting film, wherein the mask pattern includes a... |
| US-5,870,447 |
Method and apparatus for generating low energy nuclear particles A particle accelerator (12) generates an input particle beam having an initial energy level above a threshold for generating secondary nuclear particles. A thin... |
| US-5,870,446 |
Mechanism for automatically adjusting the phase of a transmission strobe
clock signal to correct for... A transmission strobe clock signal control mechanism continuously monitors DTE data and transmission strobe clock signals used to strobe the DTE data onto a... |
| US-5,870,445 |
Frequency independent clock synchronizer A clock distribution system including a variable delay circuit responsive to a reference clock signal having a fixed clock pulse width and a variable clock... |
| US-5,870,444 |
Method and apparatus for performing very fast message synchronization The present invention discloses a method and apparatus for providing very fast message synchronization of synchronous serial data streams by reducing system... |
| US-5,870,443 |
Symbol timing recovery and tracking method for burst-mode digital
communications A data symbol timing recovery technique for determining an optimum symbol timing phase for use in digital communication systems using a burst mode digital... |
| US-5,870,442 |
Timing recovery arrangement Timing recovery circuits, automatic gain control circuits and the like, employ a so-called vector tracking filter (VTF) in conjunction with other timing recovery... |
| US-5,870,441 |
Distributed clocking system A clocking mechanism with improved fault tolerance for synchronizing a distributed processing system includes a plurality of distributed clock sources. Each... |
| US-5,870,440 |
Data-link processing equipment and apparatus for subscriber terminal
office using same A data-link processing equipment which reduces the processing delay of the data-link data and performs the data-link processing with a good efficiency and an... |
| US-5,870,439 |
Satellite receiver tuner chip having reduced digital noise interference A DBS receiver front end which includes a tuner chip and a demodulator/decoder chip having digital interface signals. The tuner chip is configured to receive the... |
| US-5,870,438 |
Fast resynchronization system for high-speed data transmission A system for resynchronizing the timing and carrier phases of a modem receiver signal to enable the receiver to quickly reacquire the timing phase and the... |
| US-5,870,437 |
Apparatus and method for detecting end of serial bit stream A detector detects the end of a serial bit stream wherein the serial bit stream is based on one clock and the detector (and other associated circuitry) is based... |
| US-5,870,436 |
Uniform discrete fourier transform filter parameter encoder The invention is embodied in a parameter encoder for identifying selected parameters of a digitally sampled incoming signal lying within a receiver bandwidth,... |
| US-5,870,435 |
Quantization/inverse quantization unit selectably accommodating multiple
video encoding standards and including... Disclosed is a quantization/inverse quantization circuit including a differential pulse code modulator (DPCM). Video CODEC standards (i.e., JPEG, H.261, H.263,... |
| US-5,870,434 |
Apparatus and method for quantizing a digital signal based on quantizing
steps including odd-numbered steps A subtraction device subtracts a predicted value generated by a predicting portion from a digital picture signal supplied through an input terminal. The... |
| US-5,870,433 |
Method of processing signals in a viterbi decoder according to delayed
decision feedback sequence estimation... A method of digital telecommunication via an electrical cable is provided, whereby the symbols of a data stream to be transmitted are supplied as a transmission... |
| US-5,870,432 |
Method for transmission line impulse response equalization and a device
to perform this method A set of parameters (W) is calculated for an equalizer which equalizes a transmission line impulse response (LIR) in such a way that the equalized impulse... |
| US-5,870,431 |
ROM-based finite impulse response filter for use in mobile telephone The finite impulse response (FIR) filter is implemented as a table using read-only memory (ROM). The FIR filter table stores a pre-calculated output filter value... |
| US-5,870,430 |
Process for multi-sensor equalisation in a radio receiver in the
presence of interference and multiple... The process according to the invention consists, in order to reduce the number of coefficients of the filters of the spatial part and the temporal part connected... |
| US-5,870,429 |
Apparatus method, and software modem for utilizing envelope delay
distortion characteristics to determine a... An apparatus, software modem, and method for a data communications device, such as a modem (100, 101), to determine a symbol rate and carrier frequency, from a... |
| US-5,870,428 |
Method for providing remote loop back testing in a digital data system
having multiple protocols An adaptive digital data unit (600) initiates and successfully completes a remote loop back test. The adaptive digital data unit (600) has a controller (610), a... |
| US-5,870,427 |
Method for multi-mode handoff using preliminary time alignment of a
mobile station operating in analog mode A method for handoff of an analog connection within a cellular communication system which relies upon mobile station synchronization to a system time is... |
| US-5,870,426 |
Grouping of spread spectrum acknowledgement pagers to minimize
transmission collisions An acknowledgment paging system is described which fits within the existing infrastructure of a paging network and which provides low cost manufacture and low... |
| US-5,870,425 |
Differential receiver of direct sequence spread spectrum signals A Differential receiver of direct sequence spread spectrum signals, wherein, the intermediate frequency stage comprises N filtering and amplifying channels in N... |
| US-5,870,424 |
Graphite electrode having joints In order to prevent the rupturing of a graphite electrode comprising electrode sections joined with one another by a socket and a nipple, electrical insulating... |
| US-5,870,423 |
Individual heating element power control for a furnace During a heating process in a three-phase, electric furnace, power can be controlled by dividing the heating process into intervals and then controlling the... |
| US-5,870,422 |
Gain generator for high-energy chemical lasers A gain generator 10 for use in high-energy flowing gas lasers such as COIL devices comprises a chemical reactant mixing nozzle 12 disposed in a gain medium 16.... |
| US-5,870,421 |
Short pulsewidth, high pulse repetition frequency laser system A laser system capable of high speed silicon wafer dicing is disclosed. A laser with high average power, high repetition rate, ultra-short pulsewidth, and... |
| US-5,870,420 |
Cross-flow blower with braces A trussed cross-flow blower comprising truss elements on the inside of a cylindrically-shaped cross-flow blower element form at least three trusses which provide... |
| US-5,870,419 |
Double heterojunction semiconductor laser having improved light
confinement A double heterojunction semiconductor laser includes a semiconductor substrate of a first semiconductor material having a first conductivity type; successively... |
| US-5,870,418 |
Driving circuit of laser diode and optical transmission device An optical transmission device which is used for a short range optical data link or an optical communication system for subscribers and more particularly... |
| US-5,870,417 |
Thermal compensators for waveguide DBR laser sources A waveguide DBR laser or waveguide DBR laser array may be comprised of a semiconductor gain element, or a series of semiconductor gain elements, in combination... |
| US-5,870,416 |
Semi-monolithic ring cavity for second harmonic generation of laser
frequency A semi-monolithic ring cavity for a second harmonic generation of laser frequency including a nonlinear crystal, an input mirror, an output mirror, a first... |
| US-5,870,415 |
Lasers A laser device has a laser medium responsive to an excitation light for generating a laser beam consisting of a plurality of longitudinal modes when excited by... |
| US-5,870,414 |
Method and apparatus for encoding and decoding digital signals A method of encoding a digital signal comprising a sequence of digital words, each comprising a first portion and a second portion, comprises the steps of... |
| US-5,870,413 |
CRC code generation circuit for generating a CRC code and a code error
detection circuit for detecting a code... When encoding, data bits in a CRC code word are received for every bit by a dividing circuit where the CRC code word is divided by a generation polynomial and a... |
| US-5,870,412 |
Forward error correction system for packet based real time media A computationally simple yet powerful forward error correction code scheme for transmission of real-time media signals, such as digitized voice, video or audio,... |
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