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| Patent # | Description |
|---|---|
| US-5,432,847 |
Low frequency telecommunication digital network interface patch panel A low frequency telecommunication digital network interface patch panel 10 is described having the capability of terminating and providing front access to... |
| US-5,432,846 |
Automatic telephone call distribution apparatus and method for
electronic switching system The present invention discloses a switching system including a switch exchange coupled to a plurality of telephone lines and a plurality of telephone sets. When... |
| US-5,432,845 |
Post answer telephone call redirection or rerouting Calls made to an 800 service subscriber are routed to the subscriber's primary location via a telephone network switch operating in conjunction with a specially... |
| US-5,432,844 |
Shared line answering system with enhanced extension device features A system of telephone answering devices includes a master telephone answering device (MTAD) and at least one (and often a plurality) of extension telephone... |
| US-5,432,843 |
Method of performing handoff in a cellular communication system The method consists of analyzing a handoff request received from a source base station at a source base site controller (BSC). If the handoff request contains a... |
| US-5,432,842 |
Mobile communication switching across cell boundaries With respect to a mobile communication system, intelligence learns a cell boundary where the field strength of adjacent base stations becomes equal, by measuring... |
| US-5,432,841 |
System for locating and communicating with mobile vehicles A vehicle location system which provides a plurality of cellular systems that each includes a memory for identifying the cellular subscriber stations that are... |
| US-5,432,840 |
Method and arrangement for connecting selectively a stationary
subscriber apparatus to a neighboring mobile... A method and a system for connecting a stationary subscriber apparatus selectively to a mobile subscriber apparatus through a telephone subscriber exchange,... |
| US-5,432,839 |
Method and apparatus for forwarding selective call messages received in
a first selective call service to a... A method, in a repeater (155) having receiving circuitry (310, 315) for selectively receiving and decoding a selective call message transmitted by a first... |
| US-5,432,838 |
Communication system A communication system, particularly for a mine, has a broad band distribution system. Antennas, which may comprise leaky coax feeders, are connected to this... |
| US-5,432,837 |
Telecommunication device for the deaf with automatic transmission
capability A telecommunication device for the deaf is designed to operate under an enhanced TDD communication protocol. The TDD is capable of communicating with... |
| US-5,432,836 |
Interchangeable base arrangement for wall mount/desk mount telephone
answering device A telephone device for selective mounting on a substantially horizontal or substantially vertical surface includes a housing having a top panel, and a base... |
| US-5,432,835 |
Telephone device for amplifying opposite party's voice after user's
telephone is placed on-hook This device is designed so that although voice of the opposite party will be amplified when telephone 1 on the side of the device is first placed on-hook during... |
| US-5,432,834 |
Whole-body dual-energy bone densitometry using a narrow angle fan beam
to cover the entire body in successive scans A dual energy bone densitometer scans the whole body of a patient in successive passes with a narrow fan beam of x-rays and, between passes, moves the patient... |
| US-5,432,833 |
Automatic exposure control system for tomographic applications An automatic exposure control system which regulates the power supplied to an x-ray source of a tomographic apparatus is disclosed. The system includes an x-ray... |
| US-5,432,832 |
Combination of X-ray diffractometer and solid state detector and method
of use thereof A combination of X-ray diffractometer and solid state detector is much faster than previous diffractometers and detectors in that X-ray photons that impinge on... |
| US-5,432,831 |
Vacuum optical system A vacuum optical system has a vacuum chamber for housing an optical system used in a vacuum. The vacuum chamber is equipped with a member, on which the optical... |
| US-5,432,830 |
High speed counter for alternative up/down counting of pulse trains and
method therefor An asynchronous counter includes a plurality of flip-flops, cascade connected to one another, the plurality of flip-flops serially receiving successive pulse... |
| US-5,432,829 |
Fuel assembly and reactor core A fuel assembly comprises fuel rods arrayed in a square lattice pattern of 10 rows and 10 columns, and three large-diameter water rods arranged along a diagonal... |
| US-5,432,828 |
Method and device for replacing an adaptor for penetrating the vessel
head of a nuclear reactor The replacement is performed from a repair area located above the convex face (1a) of the head. The adaptor to be replaced is machined, after dismounting its... |
| US-5,432,827 |
Clock extraction circuit for fiber optic receivers A circuit for regenerating a clock signal from an NRZ encoded signal. The NRZ signal is filtered, differentiated, and applied to a nested phase-locked loop. The... |
| US-5,432,826 |
Digital phase comparator and phase-locked loop A digital phase comparator measures the phase difference of two signals (S1, S3) from a third signal (S2), and calculates the difference. The zero crossing of... |
| US-5,432,825 |
Enabling code for radiotransmission of data A radiotransmission station transmits digital data at a predetermined rate to a receiving station. The receiving station is controlled by a timing circuit which... |
| US-5,432,824 |
Credit/rate-based system for controlling traffic in a digital
communication network A system for controlling traffic in a digital communication network to avoid data loss due to congestion utilizes both credit-based and rate-based traffic... |
| US-5,432,823 |
Method and circuitry for minimizing clock-data skew in a bus system A bus system is described that minimizes clock-data skew. The bus system includes a data bus, a clockline and synchronization circuitry. The clockline has two... |
| US-5,432,822 |
Error correcting decoder and decoding method employing reliability based
erasure decision-making in cellular... A receiver (30) in a digital communication system determines the phase error magnitude (60) and the magnitude error (54) for each received channel symbol and... |
| US-5,432,821 |
System and method for estimating data sequences in digital transmissions A method for selecting the best survivor from a plurality of surviving possible distal data symbols creates a channel estimate for each of the survivors... |
| US-5,432,820 |
Maximum-likelihood decoding method and device A maximum-likelihood decoding method for decoding an input signal subject to intersymbol interference. An assumption is made of a measure of an interference... |
| US-5,432,819 |
DPSK communications with Doppler compensation A data receiver receives differential phase-shift keyed (DPSK) signals, and filters the signal by a process including frequency conversion, under the control of... |
| US-5,432,818 |
Method and apparatus of joint adaptive channel encoding, adaptive system
filtering, and maximum likelihood... A method and apparatus for detecting, with an unknown data training, high-rate data signals coming through a digital communication system whose characteristics... |
| US-5,432,817 |
Vehicle communications network transceiver, ground translation circuit
therefor A ground translation circuit in a transmitter of a transceiver of a data transmission network for transferring symbol information contained in analog pulses from... |
| US-5,432,816 |
System and method of robust sequence estimation in the presence of
channel mismatch conditions An adaptive communications receiver for data-transmission which comprises a channel estimator and sequence estimator. The channel estimator consists of a... |
| US-5,432,815 |
Data modulator-demodulator apparatus of a spread spectrum communication
system In performing data communication between a subscriber terminal and a scanner of a remote information processing system, there is provided a data... |
| US-5,432,814 |
Spread spectrum communication system A spread spectrum communication system in which a spectrum of a communication signal is spread by using a spreading signal includes PN code generators for... |
| US-5,432,813 |
Parallel processing based digital matched filter and error detector for
a digital demodulator A high chipping rate digital demodulator circuit is coupled to the output of an analog front end communications receiver and comprises a low pass filter in each... |
| US-5,432,812 |
Semiconductor laser device with multi-directional reflector arranged
therein A microcavity semiconductor laser disclosed therein includes a double-heterostructure section including an intermediate active layer sandwiched between a first... |
| US-5,432,811 |
Laser rod with polyhedron shaped ends A laser has been developed with an active laser element which, in certain aspects, employs no mirrors but instead has a lasant rod with ends formed to produce... |
| US-5,432,810 |
Semiconductor layer having first and second cladding layers and an
active layer formed of a II-VI group... A semiconductor layer comprises a first cladding layer of a first conductivity type on a substrate, an active layer laminated on the first cladding layer, a... |
| US-5,432,809 |
VCSEL with Al-free cavity region Patterned-mirrors for VCSELs are fabricated by forming a first mirror stack of a plurality of pairs of relatively high and low index of refraction layers of... |
| US-5,432,808 |
Compound semicondutor light-emitting device A compound semiconductor light-emitting device includes a cubic SiC substrate, and an Ga.sub.x Al.sub.y In.sub.1-x-y N (0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1)... |
| US-5,432,807 |
Optical wavelength converting apparatus In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between... |
| US-5,432,806 |
Four level multiply doped rare earth laser system A system for producing an optical gain, the system including a host having a light conducting path doped with thulium, holmium, and at least one rare earth... |
| US-5,432,805 |
Method of detecting transmission error in disaster prevention
supervisory system During data transmission between a receiver and each of terminal devices in a disaster prevention supervisory system, the receiver sends calling data including... |
| US-5,432,804 |
Digital processor and viterbi decoder having shared memory An integrated circuit includes a digital signal processor (DSP) and an error correction co-processor (ECCP) that implements a Viterbi decoding function. The DSP... |
| US-5,432,803 |
Maximum likelihood convolutional decoder A maximum likelihood decoding system includes a branch metric processor which calculates only one of four branch metrics associated with branches leading to two... |
| US-5,432,802 |
Information processing device having electrically erasable programmable
read only memory with error check and... An information processing device according to the present invention includes a logical circuit which outputs a signal for indicating that an error correction has... |
| US-5,432,801 |
Method and apparatus for performing multiple simultaneous error
detection on data having unknown format An error may be detected and corrected from among a plurality of data values retrieved from a compact disk-read only memory (CD-ROM). As a stream of data values... |
| US-5,432,800 |
Methods and apparatuses for transmission and reception of information
signals Method and apparatus for transmitting an information signal generate a plurality of block signals on the basis of the information signal, generate a plurality of... |
| US-5,432,799 |
Modulating method A method of modulating digital data to a variable-length code having parameters d, k, m, n, and r for recording information on and reproducing the same from an... |
| US-5,432,798 |
Data communication method and system A method of multipoint communications utilizes a protocol in which data messages (10) sent by a primary source are multicast to a plurality of secondary... |
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