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Patent # Description
US-5,555,310 Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice...
According to this invention, a stereo voice transmission apparatus for coding and decoding voice signals input from a plurality of input units includes a...
US-5,555,309 Cryptographic key management apparatus and methods
The present invention provides for a cryptographic key management method and apparatus in which the cryptographic keys are provided as vector keys in that they...
US-5,555,308 Encryption of signals to insure viewership of commercials
A system for distributing data to attract consumers to a commercial message provides for the delivery of free data to the consumer. The commercial message...
US-5,555,307 Device and process for rendering secure the transmission of faxes, as well as fax unit which has been made...
Device and process for securing the transmission of telecopies or faxes and a secured telecopier or fax unit having such a security device. The device ...
US-5,555,306 Audio signal processor providing simulated source distance control
An audio signal processing system produces an output 24 having an illusory distance effect for a sound source signal S by feeding it via a direct signal path 25...
US-5,555,305 Method and apparatus for secure transmission of video signals
Video signals are sampled at 4Fsc locked onto sub-carrier phase and frequency. The active picture lines of each field are divided into 6 blocks of 47 lines and...
US-5,555,304 Storage medium for preventing an illegal use by a third party
A storage medium stores encrypted electronic data, a medium personal number which is unique for each storage medium and encrypted permission information. At...
US-5,555,303 Secure transaction system and method utilized therein
A transaction system is disclosed wherein, when a transaction, document or thing needs to be authenticated, information associated with one or more of the...
US-5,555,302 Mobile telephone holder
A mobile telephone holder including a base plate covered with a back cover, two clamping plates coupled to the base plate at two opposite sides and having a...
US-5,555,301 Power supply apparatus and method for energizing telephone alerting mechanisms and circuitry
In a digital data communications device for use in an ISDN environment, a power supply apparatus and method are provided for energizing telephone danger...
US-5,555,300 Telephone handset microphone level adjustment
A system for automatically adjusting the level of a telephone instrument microphone input signal in response to the level of the telephone instrument sidetone...
US-5,555,299 Method and system for transferring calls and call-related data between a plurality of call centers
This invention permits transferring calls along with data that identifies the caller's name, pertinent account information, any transaction information acquired...
US-5,555,298 Method and system for establishing a connection between parties in a network
A method and a system for establishing in real time a connection between a first party and a second part via at least one telecommunication network. The...
US-5,555,297 Automatic call distributor reporting system and method therefor
An automatic call distributor reporting system (100) and method is provided wherein data reports representative of operation of an automatic call distributor...
US-5,555,296 Pay telephone stand
An upright stand is provided for a coin-operated machine, such as a coin-operated telephone. The stand employs a base firmly attached to an underlying support...
US-5,555,295 Service and information management system for a telecommunications network
A system for service control and operations for a telecommunications network. In particular, an architecture and method for a service control and operations...
US-5,555,294 Communication method and apparatus
A communication apparatus capable of transmission and reception simultaneously through a plurality of communication channels of an ISDN basic interface has a...
US-5,555,293 Optically-coupled data access arrangement and transhybrid
Isolation and interconnection of a telephone network of tip and ring lines and the analog ports of a modem are achieved with a transhybrid that incorporates...
US-5,555,292 Pabx with voice mail device
A telephone exchange (1) with a voice mail device (7), which is able to store voice messages arriving from a first subscriber (2) and intended for a second...
US-5,555,291 Method and system for automatically updating telephone response mechanism
A telephone response mechanism provides a response to a caller and an opportunity for the caller to leave a message. The telephone response mechanism is utilized...
US-5,555,290 Long distance telephone switching system with enhanced subscriber services
A long distance telephone switching system is adapted to provide various enhanced subscriber services, such as an audio news and information service, conference...
US-5,555,289 Telephone answering device with operating status confirmation means
The present invention is directed to provide a means for indicating an incoming message recording mode of a telephone answering device, such as a fixed or...
US-5,555,288 Voice processing system with a configurable telephone line interface
An electronic voice response system includes an interface unit which couples the voice response system to a plurality of trunk groups, each including a plurality...
US-5,555,287 Integrated circuit and cordless telephone using the integrated circuit
An integrated circuit especially suitable for incorporation into the base and handset units of a cordless telephone integrates the speech, control channels, and...
US-5,555,286 Cellular phone based automatic emergency vessel/vehicle location system
A cellular phone based emergency vessel/vehicle location system which includes a navigation unit to determine position and speech synthesis to modulate a...
US-5,555,285 Multi-variate system having an intelligent telecommunications interface with automatic adaptive delay...
A multi-variate system having a microprocessor-based telecommunications interface which has a digital adaptive all-pass filter and automatically variable delay...
US-5,555,284 Roentgenography of vertebral column and the devices used therefor
A roentgenography and a device used therefor by which shapes of the vertebral columns of vertebrate animal including Homo sapiens can be clearly photographed...
US-5,555,283 Computer-controlled miniature multileaf collimator
This invention relates to the field of miniature multileaf collimators for use in shaping a radiation beam used in stereotactic radiosurgery And radiotherapy....
US-5,555,281 Triangular lattice for LWR square fuel assemblies
Triangular lattice for LWR square fuel assemblies.
US-5,555,280 Process and device for producing a leakproof protective coating on a surface of a nuclear reactor component
The surface of the component (1, 2) to be protected is scanned, a jet of semitransferred arc plasma (17) into which a metal powder is introduced. The process can...
US-5,555,279 System for monitoring and controlling nuclear reactors
A computer-based power oscillation detection system and method for detecting, monitoring and indicating thermal-hydraulic stability margin in a nuclear reactor...
US-5,555,278 Semiconductor circuit having phase lock function
Jitter provided from a phase locked loop circuit is extracted by pulse extracting circuits. Determination is made by a counter whether a pulse signal...
US-5,555,277 Technique for cancelling common mode switching noise to achieve reduced error rates in a local area network
Improved gain control is obtained in each receiver of a LAN interface or hub in a LAN of the type using amplitude critical signals for conveying information. An...
US-5,555,276 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
A programmable apparatus is disclosed for generating a frequency modulated signal all a selected center frequency in accordance with digital data of at least...
US-5,555,275 Multi-threshold and hierarchical television signal transmission system
At the transmitter side of a signal transmission system, carrier waves are modulated according to an input signal for producing relevant signal points in a...
US-5,555,274 Phantom data link for digital transmission lines
An out of band data link for performance monitoring information using existing telecommunications transmission facilities. The Bell telephone network includes a...
US-5,555,273 Audio coder
Quantizing section 1 input audio signal data with a quantizing step width. First predicting section 14 predicts a quantization step width to be supplied to the...
US-5,555,272 Signal processing device using several different filterings, especially for audio-frequency coding of voice signals
The device comprises a first input (E1) and a first output (S1) which are capable respectively of receiving and delivering a plurality of analog signals and...
US-5,555,271 Semiconductor laser device
On an n-type GaAs semiconductor substrate, an n-type cladding layer formed of AlGaInP system crystal almost in lattice matching with the semiconductor substrate,...
US-5,555,270 Method and apparatus for constructing unique input/output sequence (UIO) sets utilizing transition distinctness...
A measurement of the distinctness of Finite State Machine (FSM) (33) model state transitions can expedite identification of Unique Input/Output Sequences (UIO)...
US-5,555,269 Error detection for HVAC systems
A process is disclosed for checking communications that a controller receives from elements in an HVAC system. The process includes storing the communications...
US-5,555,268 Multicode direct sequence spread spectrum
In this patent, we present MultiCode Direct Sequence Spread Spectrum (MC-DSSS) which is a modulation scheme that assigns up to N DSSS codes to an individual user...
US-5,555,267 Feedforward control system, method and control module
A control system (FIGS. 2, 3, 5, 6) and method in which multiple levels, or stages (128, 130, 132), of logical decisions are made by selectively feedforwarding...
US-5,555,266 Method for reducing transmission delays in a packet transmission system
A packet transmission system (100) with reduced transmission delays includes a communications controller (110) and a plurality of remote requesting units (112)...
US-5,555,265 Switching path setting system used in switching equipment for exchanging a fixed length cell
A switching path setting system is disposed between an input line connected to switching equipment and a switch. An input interface device allocates a cell to a...
US-5,555,264 Methods and devices for prioritizing in handling buffers in packet networks
Methods and devices for handling a buffer in packet networks, particularly in regard of loss and delay of packets, which belong to predetermined or implicitly...
US-5,555,263 Method and apparatus for reducing switching oscillations in an ISDN line interface circuit
A method and apparatus for limiting switching oscillations on an ISDN line interface circuit may be accomplished by sensing the current provided to the primary...
US-5,555,262 Transmission system of the synchronous digital hierarchy
The invention relates to a transmission system comprising at least a transmission device for exchanging transport modules in signals of a synchronous multiplex...
US-5,555,261 Interface device between a network and an exchange for assembling fixed-length cell and transmitting the same
An internal timing information producing portion produces internal timing information IRTS1 to IRTS4 which is the timing information on a data reception clock by...
US-5,555,260 Decentralized base station for reducing bandwidth requirements for communications to and from radio...
A TDMA cellular mobile radio system has at least one network control unit, at least one radio transceiver, and at least one multiplexor for multiplexing and...
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