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Patent # Description
US-6,993,089 Digital modulator
The present invention relates to a digital modulator (DM) and to an associated method of modulation. The digital modulator (DM) comprises a clock frequency...
US-6,993,088 Encoding scheme for producing magnetic field signals having desired spectral characteristics
Methods and systems for producing an encoded information signal having attenuated low frequency spectral components and a substantially constant average energy....
US-6,993,087 Switching mode power amplifier using PWM and PPM for bandpass signals
Switching mode power amplifiers using pulse width modulation (PWM) and pulse position modulation (PPM) for generating bandpass signals is disclosed. Fully...
US-6,993,086 High performance short-wave broadcasting transmitter optimized for digital broadcasting
A short wave high efficiency radio broadcasting transmitter for digital transmissions. The transmitter includes a power tube in which the grid is excited by a...
US-6,993,085 Encoding and decoding methods and devices and systems using them
For encoding a source sequence of symbols (u) as an encoded sequence, the source sequence (u) is divided into p.sub.1 first sub-sequences (U.sub.i), p.sub.1...
US-6,993,084 Coarse frequency synchronisation in multicarrier systems
A method for generating a signal having a frame structure, each frame of the frame structure comprising at least one useful symbol, a guard interval associated...
US-6,993,083 Apparatus and method of OFDM demodulation
An apparatus and method for OFDM demodulation establish symbol synchronization to minimize between-symbol interference even under an environment where multipath...
US-6,993,082 Station and method for operating a CAN communication line
A CAN communication line is operated whilst detecting a ground level shift on the communication line through storing a data element indicative for the shift. In...
US-6,993,081 Seamless splicing/spot-insertion for MPEG-2 digital video/audio stream
A system and method for a seamless splicing/spot insertion strategy for MPEG-2 digital video/audio transport stream with no previously encoded information. This...
US-6,993,080 Signal processing
A decoder 2 decodes a first compressed digital video bitstream whilst preserving the compression parameters thereof, the compression parameters including a first...
US-6,993,079 Variable length coding method
A variable length coding method is provided. The method comprises comparing corresponding portions of a present picture and a previous picture received by a...
US-6,993,078 Macroblock coding technique with biasing towards skip macroblock coding
A technique for encoding macroblocks of a frame is provided which includes switching a coding decision for a macroblock from a non-intra decision to a skip...
US-6,993,077 Experimental design for motion estimation
An experimental design for motion estimation in video compression that reduces the number of search locations within a search window by selecting the search...
US-6,993,076 Apparatus and method for deriving an enhanced decoded reduced-resolution video signal from a coded...
An improved image processing system involves decoding compressed image data including frequency domain coefficients defining blocks of pixel values representing...
US-6,993,075 Systems and methods for reducing error propagation in a video data stream
The present invention is related to error resilient video encoding. A first instruction to intracode a first frame is received. In response to the first...
US-6,993,074 Methods and arrangements for handling concentric mosaic image data
Methods and arrangements are provided for compressing, transporting and decompressing/rendering concentric mosaic image data. The methods and arrangements...
US-6,993,073 Optimization software module and method for video compression under MPEG
An MPEG Optimization Software (MOPSW) for maximizing a Video Compression Ratio (VDCR) while maintaining a good output Video Image Quality (VDIQ) of an Input MPEG...
US-6,993,072 Digital signal coding apparatus
A digital signal coding apparatus for controlling the coding operation of a coding unit so as to obtain predetermined information amount and for recording into a...
US-6,993,071 Low-cost high-speed multiplier/accumulator unit for decision feedback equalizers
A multiplier device for multiplying one of a discrete set of digital level values with a filter coefficient in a filter device implemented in a decision feedback...
US-6,993,070 Method and system of iteratively detecting and decoding received symbols coupled with re-estimation of the...
In order to detect and iteratively decode encoded and interleaved symbols, prior to any iteration, a linear estimation (A) of the transmission channel...
US-6,993,069 Simulation process of radiofrequency scenario in radio mobile environment and testing system employing said process
A testing system includes simulation equipment for generating a radiofrequency test signal for the receivers of a base transceiver station, which is equipped...
US-6,993,068 Method for estimating and synchronizing frame boundaries of mis-aligned cross-talk signals in a DMT system
In a telecommunications transmission system using a DTM system as a multicarrier system and having at least two VDSL systems, each including a pair of modems,...
US-6,993,067 Fractional bit rate encoding in a pulse amplitude modulation communication system
Fractional bit rate encoding in a pulse amplitude modulation (PAM) communication environment allows the transmission of fractional bit rates, thus maximizing the...
US-6,993,066 Transmitting apparatus and gain compensating method
A code multiplexer multiplexes spread data output from a spreader to generate code-multiplexed data. A reference data generator generates redundant data with...
US-6,993,065 Multi-channel spread spectrum system
A multi-channel spread-spectrum system separates a data stream, for example from a convolutional encoder and an interleaver, into sub-channel data-sequence...
US-6,993,064 Multi-user receiving method and receiver
A receiver is provided, in which the receiver includes K signal extraction parts, a signal estimation part, K joint probability calculation parts and a...
US-6,993,063 Outer loop/weighted open loop power control
A transmission power level for a user equipment in a wireless time division duplex communication system using code division multiple access is determined. An...
US-6,993,062 Forward link device of multicarrier communication system and method for realizing the same
A forward link device of a multicarrier CDMA communication system with an overlay scheme in which a multicarrier system and an IS-95 system share same frequency...
US-6,993,061 Operating an induction melter apparatus
Apparatus and methods of operation are provided for a cold-crucible-induction melter for vitrifying waste wherein a single induction power supply may be used to...
US-6,993,060 Resistor made from carbonaceous material
A crenellated resistor made from a carbonaceous material and having the shape of a hollow cylinder for use in furnaces working at high temperature. The resistor...
US-6,993,059 Apparatus for reducing spacing of beams delivered by stacked diode-laser bars
Apparatus for reducing spacing between a plurality of parallel, spaced apart plane-polarized laser-radiation beams delivered by a stack of laser-diode bars...
US-6,993,058 Coherent population trapping detector
A CPT detector and a method for detecting CPT are disclosed. The CPT detector includes a quantum absorber, a polarization analyzer, and a detector. The quantum...
US-6,993,057 Coarse spectrometer with a grating
A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors,...
US-6,993,056 Hetero laser and light-emitting source of polarized radiation
A device and method for hetero laser and light-emission of high polarization radiation. Previous light emitting devices suffered from very low degree of the...
US-6,993,055 Resonant cavity device array for WDM application and the fabrication method of the same
The specification discloses a resonant cavity device array for wavelength division multiplexing and the method for fabricating it. The structure of the resonant...
US-6,993,054 Enhanced link operation of directly modulated lasers using gain-coupled gratings
Increasing the gain-coupling of a DFB directly modulated semiconductor laser permits the output response to be overdamped without lowering the relaxation...
US-6,993,053 Thin clad diode laser
A diode laser having a plurality of layers including a thin (e.g., about 0.3 .mu.m or less) p-type cladding layer, the plurality of layers having a substantially...
US-6,993,052 System and method for delay compensation for a pulsed laser
Method and system provide a variable delay between the external trigger pulse for a laser system and the light pulse such that the total delay is controlled. The...
US-6,993,051 External cavity tunable laser with provisions for intracavity optical reflection suppression
An external cavity laser system includes an in-line optical filter and a reflection suppressor that efficiently suppresses back-reflected light while allowing...
US-6,993,050 Transmit and receive system for cable data service
A transmit and receive system for transmitting data between a transmit site and a receive site. The system includes a tunnel source, router and modulator for...
US-6,993,049 Communication system
A communications system comprises a primary station (100) and at least one secondary station (101). The primary station (100) is arranged to broadcast a series...
US-6,993,048 ATM permanent virtual circuit and layer 3 auto-configuration for digital subscriber line customer premises...
The present invention pertains to a method and device for automatically configuring the Permanent Virtual Circuit (PVC) of a Digital Subscriber Line (DSL)...
US-6,993,047 Any size and location of concatenated packet data across SONET frames in a SONET signal
Any size and location of concatenated packet data across Synchronous Optical Network (SONET) frames in a SONET signal is provided. In one embodiment, a method...
US-6,993,046 Mapping of block-encoded data formats onto a bit/byte synchronous transport medium
A fibre channel (FC) signal representing block encoded data is applied to a block decoder, which removes the block encoding from the data. The data is then...
US-6,993,045 Adaptive bandwidth throttling for network services
The adaptive bandwidth throttling system implements a graceful diminution of services to the clients by delaying a first class of services provided by a network...
US-6,993,044 Computerized method for allocating access across a shared communication medium
A computerized method for allocating among a plurality of users bandwidth for conveying information across a shared communications medium includes the steps of...
US-6,993,043 End-to-end prioritized data delivery on networks using IP over frame relay
The invention provides methods and systems for providing priority processing to critical data as the data is transmitted across a network. A plurality of...
US-6,993,042 LAN interface apparatus and a method of controlling the transmission and reception of a frame
Disclosed is a method of avoiding a collision of a frame and enabling the guarantee of the QoS in a network using the CSMA/CD system, wherein when a terminal...
US-6,993,041 Packet transmitting apparatus
Disclosed is a packet transmitting apparatus for transmitting packets belonging to a plurality of groups having priorities that differ from one another. The...
US-6,993,040 Adaptive service weight assignments for ATM scheduling
A system and method for adaptively assigning queue service weights to an ATM traffic management controller in order to reduce service weight update calculations....
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