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Patent # Description
US-6,751,303 Data communication over telephone voice channel using DTMF interface
A multifrequency tone generator sends data over a telephone voice channel. An alphanumeric character generator sequentially generates alphanumeric characters....
US-6,751,302 Method and apparatus for providing an automated selection of a telecommunication service from among a plurality...
A method and apparatus is provided for providing an automated selection of a telecommunication service from among multiple telecommunication services. In a...
US-6,751,301 Administration tool for supporting information technology (IT) system migrations
A computer-based administration tool migrates user's names and greetings from a first voice mail system to a second voice mail system. Illustratively, the...
US-6,751,300 Network based voice mail with call screening
Embodiments of the present invention provide a network based voice mail system that includes advantages of traditional answering machines. When a call comes in...
US-6,751,299 Voice messaging system
A voice messaging system. The voice messaging system includes a set of geographically distributed devices in which voice messages are stored and logic that...
US-6,751,298 Localized voice mail system
The present invention relates to a system and method for using a localized voice mail system that allows voice mail messages on a cellular telephone network to...
US-6,751,297 Method and system for multimedia network based data acquisition, recording and distribution
An intelligent digital recording system, in conjunction with public centralized network resources, provides wide area multimedia (Fax, Internet, Screens, Video,...
US-6,751,296 System and method for creating a transaction usage record
A method of creating a transaction usage record is provided. An input signal is received. A transaction usage record is created in response to the input signal....
US-6,751,295 Method and apparatus for measuring communication market statistics
Methods and apparatus are provided for determining market statistics for communication service providers. Determinations of whether or not a sampling of...
US-6,751,294 Prevention of parametic or functional changes to silicon semiconductor device properties during x-ray inspection
An apparatus for x-raying a semiconductor device which includes semiconductor material and conductive material, the apparatus including a source of x-rays, a...
US-6,751,293 Rotary component support system
A rotary component support system for positioning and securing an anode of x-ray tube. The rotary component support system includes a shaft, to which the anode...
US-6,751,292 X-ray tube rotor assembly having augmented heat transfer capability
A rotor assembly capable of augmented heat transfer within an x-ray tube is disclosed for preventing heat damage to sensitive tube components. The rotor assembly...
US-6,751,291 Rotary anode type X-ray tube
Disclosed is a rotary anode type X-ray tube comprising an anode target emitting an X-ray, a rotating mechanism for rotatably supporting the anode target, the...
US-6,751,290 Radiographic assessment of tissue after exposure to a compound
Radiographic system and method for noninvasively assessing the response of tissue to a compound, such as a therapeutic compound. In one embodiment, a ...
US-6,751,289 X-ray diagnostic apparatus
When X -ray irradiation is performed with many X doses and the fall of temporary sensibility or the rise of the temporary offset arises, it is the X-ray...
US-6,751,288 Small angle x-ray scattering detector
A detector for time-resolved small-angle x-ray scattering includes a nearly constant diameter, evacuated linear tube having an end plate detector with a first...
US-6,751,287 Method and apparatus for x-ray analysis of particle size (XAPS)
The apparatus comprises an X-ray source (112), a monochromator (118), a goniometer (170), a position sensitive detector (150), a mechanism to rock or rotate the...
US-6,751,286 Computed-tomography system with filtering
A computed-tomography system comprises a data-processing system arranged to receive attenuation profiles for respective orientations. A lowest representative...
US-6,751,285 Dose management system for mammographic tomosynthesis
A method for acquiring a plurality of images of an object of interest using a tomosynthesis imaging system. The method includes determining a thickness of an...
US-6,751,284 Method and system for tomosynthesis image enhancement using transverse filtering
A technique is provided for reducing contrast variability in images produced by tomosynthesis. In particular, contrast variability in images produced by a...
US-6,751,283 Reconstruction method for tilted-gantry computed tomography
A computed tomography apparatus (10) for performing volumetric helical imaging acquires helical computed tomography imaging data (72) using a tilted gantry...
US-6,751,282 Signal active percentage monitor
A method and apparatus are arranged to provide a multi-bit digital signal that represents a normalized percentage of time that a signal is active. The apparatus...
US-6,751,281 Measurement system of torsion vibration for reactor internal pump
Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional...
US-6,751,280 Method of preparing high specific activity platinum-195m
A method of preparing high-specific-activity .sup.195m Pt includes the steps of: exposing .sup.193 Ir to a flux of neutrons sufficient to convert a portion of...
US-6,751,279 Arrangement for clock supply of high bit rate switching network structures
The invention is directed to an arrangement for clock supply of a high bit-rate switching network structures in a digital narrowband switching system such as...
US-6,751,278 Loop error detector for use in a PN code timing tracking loop
A loop error detector for use in a Pseudo Noise (PN) code timing tracking loop is disclosed. A first multiplexer receives an early I-channel signal and an early...
US-6,751,277 Filtering device
The invention relates, in the field of subband decomposition, to the design of filter banks adapted to the input signal statistics. In most cases, two channel...
US-6,751,276 Method and apparatus for decoding a digital signal
A method of decoding a digital signal includes processing the digital using a delay operation in accordance with a frequency characteristic of 1+D, where D is an...
US-6,751,275 Demodulator and radio communication system using the same
A demodulator for a radio communication system of the present invention includes a demodulator for demodulating an input modulated wave to thereby output a...
US-6,751,274 Apparatus and method for channel estimation in radio communication system
There is provided a channel estimating apparatus and method in a radio communication system. In the channel estimating apparatus, a fading estimator estimates a...
US-6,751,273 Apparatus for compensating a channel distortion in a bluetooth system
An apparatus for compensating a channel distortion in a Bluetooth system to process a received signal having access codes comprises a multiplier for multiplying...
US-6,751,272 Dynamic adjustment to preserve signal-to-noise ratio in a quadrature detector system
In a system that demodulates a frequency modulated signal using a quadrature detector circuit, an apparatus that tunes the output signal to compensate for any...
US-6,751,271 Detecting a carrier signal by using a power averaging circuit
The present invention provides an apparatus and method for detecting the presence of a carrier signal that is included in the reverse signals of a communications...
US-6,751,270 Carrier frequency recovery apparatus capable of simultaneously reducing frequency offset and phase error and...
A carrier frequency recovery apparatus for simultaneously reducing a frequency offset and a phase error includes: a phase detector for estimating phase error of...
US-6,751,269 Bit-interleaved coded modulation for CATV upstream channels
A bit-interleaved encoder for a CATV upstream channel is provided having a convolutional encoder for receiving data values, a bit-interleaver interconnected with...
US-6,751,268 Bandpass predistorting expansion method and apparatus for digital radio transmission
An apparatus for and a method of generating an envelope predistorted radio frequency signal. A complex baseband signal, having an in-phase component I and a...
US-6,751,267 Method for reducing peak values in single-carrier modulated or multi-carrier modulated digital transmitter signals
For reducing a peak value in single-carrier modulated or multi-carrier modulated digital transmitter signals, the peak value is first determined from a plurality...
US-6,751,266 RF transmitter employing linear and non-linear pre-correctors
A radio frequency (RF) transmitter system is presented having an input circuit for receiving an RF signal to be amplified and transmitted. A series circuit is...
US-6,751,265 Method and system of amplitude modulation using dual/split channel unequal amplification
A system and method of amplitude modulation is described in which first and second 180 degrees out-of-phase signals are produced and are each amplified by one of...
US-6,751,264 Receiver and method therefor
Embodiments of the present invention relate generally to receivers. One embodiment relates to a digital FM receiver having multiple sensors (e.g. antennas). In...
US-6,751,263 Method for the orthogonal frequency division modulation and demodulation
In orthogonal frequency division modulation, use is made of the fact that the individual carriers which are transmitted on the principle of frequency...
US-6,751,262 Data transmission method
A data transmission method, particularly in electric networks, in which coded data are blockwise modulated onto several carrier frequencies within one or several...
US-6,751,261 Synchronisation
With OFDM systems the frequency domain data is the Fourier transform of the received time domain OFDM frames. The time domain frames must be sampled, at the...
US-6,751,260 Detecting superimposed information channels for modem connections
A first transceiver transmits a set of test levels to a second transceiver as a signal through a communication channel as encoded samples and subjected to one or...
US-6,751,259 System and method for transcoding multiple channels of compressed video streams using a self-contained data unit
A system for transcoding multiple channels of compressed video streams using a self contained data unit such as an autonomous frame includes an autonomous frame...
US-6,751,258 Vertical scaling of interlaced video in the frequency domain
A system and method for filtering interlaced video in the DCT domain. The invention implements an even length symmetric filter necessary for filtering the bottom...
US-6,751,257 Video decompressing system with efficient memory access capability
A video decompressing system with high-efficiency memory access capability has a memory device for storing reference frames which are read out for performing...
US-6,751,256 Transmission of digital images within the NTSC analog format
HDTV and NTSC compatible image communication is done in a single NTSC channel bandwidth. Luminance and chrominance image data of a scene to be transmitted is...
US-6,751,255 Decision feedback analyzer with filter compensation
A digital data receiver, for receiving a signal that is transmitted over a channel having a channel response and is filtered with a predetermined filter...
US-6,751,254 Activation of multiple xDSL modems with power control measurement
An apparatus and method for determining transmission parameters while initializing a communication link. An initiating communication device includes a parameter...
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