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Transmitting device and control method thereof
A transmitting device is provided that generates OFDM symbols by identifying a sampling frequency of input data that is input from an external device,...
Robust channel estimation for wireless systems
The present invention relates to a method, apparatus, and computer program product, wherein frequency co-variances or correlations of a measured power delay...
OFDM reception device
An OFDM reception device detects a time at which impulse noise occurs in a received OFDM signal, and specifies a start position candidate period that does not...
Apparatus and method for generating ranging pseudo noise code
Disclosed is an apparatus for generating a ranging pseudo noise code used for a terminal of a portable internet system of an OFDM access scheme. The apparatus...
Method and system for encoding a signal for wireless communications
Method and system encodes a signal according to a code rate that includes a ratio of uncoded bits to coded bits. An outer Reed-Solomon encoder encodes the...
Method and system for multiple description coding and computer program
Digital signals, such as image/video signals are converted between a first format and a second format by using Multiple Description Coding, whereby the second...
Information signal processing device, information signal processing
method, image signal processing device,...
The present invention relates to an apparatus for processing informational signal etc. that are preferably applied to a digital broadcast receiver etc. A class...
Method and apparatus to enable acquisition of media in streaming
Methods and apparatus for encoding and decoding multimedia frames are presented. The method comprises encoding a set of acquisition frames including a viewable...
Variable general purpose compression for video images (ZLN)
Methods, medium, and machines which compress, enhance, encode, transmit, decode, decompress and display digital video images in real time. Real time compression...
Interframe wavelet coding apparatus and method capable of adjusting
Provided is an inter-frame wavelet coding apparatus that can reduce the computation complexity of a decoder by adjusting a decomposition level and a filter...
Moving picture decoding apparatus and moving picture decoding method
According to one embodiment, a moving picture decoding apparatus comprises a decoding module configured to decode an input stream containing coded moving...
Video and graphics system with video scaling
A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics...
Device and method for double-pass encoding of a video data stream
The invention relates to a device for double pass encoding of a video data stream comprising: a first type encoding means performing the first encoding pass,...
Method for designing a digital reception filter and corresponding
A method is provided for designing a digital reception filter for a wanted signal. The method includes modeling at least one transmission channel of at least...
Calibrating jitter in a communication channel between test equipment and a connection for a device under test (DUT) includes sampling test data in the...
Device and method for testing signal-receiving sensitivity of an
A device and a method for testing signal-receiving sensitivity of an electronic subassembly are provided. The device includes a control board and a computer....
System and method for automatic diagnosis of impairments in a digital
quadrature amplitude modulated signal
A device and methods for automatically diagnosing impairments in a digital quadrature amplitude modulated signal is disclosed. The impairments include phase...
Hybrid polyphase and joint time-frequency detection
A demodulator in a receiver includes a correlator (240) for de-spreading a spread-spectrum signal, and a decision module (250) for detecting a preamble and for...
GNSS receiver and method for GNSS memory code generation
The invention provides a Global Navigation Satellite System (GNSS) receiver. In one embodiment, the GNSS receiver comprises a memory, a buffer, a correlator,...
Iterative detection and cancellation for wireless communication
Techniques for recovering a desired transmission in the presence of interfering transmissions are described. For iterative detection and cancellation, multiple...
Methods and apparatus for reduction of a peak to average ratio for an OFDM
Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal. In an aspect, a method is provided for reducing a peak to average...
Electric arc furnace monitoring system and method
A system and method for monitoring the operating parameters of an electric arc furnace having a primary electrical circuit comprising a primary current...
Laser arrangement and resonator element for such a laser arrangement
In a laser arrangement comprising at least one laser medium for producing a laser emission, a laser resonator having a beam path with a length of at least 20 cm...
Multi-beam laser apparatus
There is provided a multi-beam laser apparatus including: a laser beam source generating a beam; an incident lens disposed on a path of the beam; a beam...
Two-dimensional photonic crystal plane emission laser
A two-dimensional photonic crystal plane emission laser of the invention includes a two-dimensional photonic crystal which has a two-dimensional photonic...
Surface emitting laser array
Provided is a surface emitting laser array using a photonic crystal, which allows an active layer to be shared without disconnecting the active layer between...
Electrically-pumped semiconductor zigzag extended cavity surface emitting
lasers and superluminescent LEDs
A semiconductor surface emitting optical amplifier chip utilizes a zigzag optical path within an optical amplifier chip. The zigzag optical path couples two or...
Vertical cavity surface emitting laser (VCSEL), VCSEL array device,
optical scanning apparatus, and image...
A vertical cavity surface emitting laser (VCSEL) includes a semiconductor substrate, a lower reflecting mirror formed on the semiconductor substrate, and a mesa...
Disclosed herein is a laser driver including a light emission controlling section configured to stop generation of a control voltage by a control voltage...
Injection seeded laser ratio loop control
In a method of controlling an injection-seeded laser, a response of the laser is sampled at a plurality of different laser current values. A threshold current...
Method for deriving precise control over laser power of an optical pickup
unit, and associated automatic power...
A method for deriving precise control over laser power of an optical pickup unit (OPU) includes: providing an analog-to-digital converter (ADC) within an...
A cut-out portion of a ground conductor is located in a region where a header faces a flexible board from the junction of a signal pin and a signal line and...
Tunable solid state laser system
A high-powered diffraction limited diode pumped solid-state source optically end pumps a compact, widely tunable solid state material. Imaging of the collimated...
Apparatus and method for generating optical-seed pulses for high-powered
fiber-laser amplifier systems
Apparatus and method for generating controlled-linewidth laser-seed-signals for high-powered fiber-laser amplifier systems. In some embodiments, the natural...
Intracavity frequency-converted optically-pumped semiconductor laser with
In a branched resonator OPS-laser arrangement, a combination of intra-cavity optical parametric generation and intra-cavity sum-frequency mixing provides output...
Tunable lasers locked to whispering gallery mode resonators
Techniques and devices that stabilize a laser to a whispering gallery mode optical resonator.
External cavity wavelength tunable laser device and optical output module
In an external cavity wavelength tunable laser device including an external cavity (20) which includes a semiconductor optical amplifier (2) and performs laser...
Multi-band multiwavelength quantum dot mode-locked lasers
A multi-band (multi-color) multiwavelength mode locked laser diode is provided by dynamic phase compensation of a quantum dot active medium. The laser diode is...
Optical pulse amplification based on stimulated Raman scattering
Techniques and apparatus for using stimulated Raman scattering in an optical gain medium to produce amplified laser pulses.
Multimode raman fiber device with mode discrimination
A multimode optical fiber has a core that includes radially dependent dopant materials to provide a desired refractive index profile and a desired Raman gain...
Quad rate transmitter equalization
An integrated circuit includes current mode drivers that provide equalized outputs. A parallel-to-serial converter circuit receives data at less than one fourth...
Methods and systems for combining media inputs for messaging
With the growing number of, both personal and shared, devices that may be connected to the Internet, the number of possible media sources that may provide input...
System and method for transmitting audio data
The invention relates to a system and method for transmitting audio data in a combined cabin management system in an aircraft with the steps: playing back...
Deterministic communication system
The invention relates to a communication system and a method for controlling a communication system for communicating audio data between each of a plurality of...
High availability clock synchronization and distribution for mobile
Fully redundant clock systems are provided on network nodes coupled by redundant multisegment psuedowires (MSPWs) within an internet-protocol (IP)-based mobile...
Line terminal for determining operational status of a U interface
A line terminal for determining operational status of a U interface includes a time presetting module, a current detecting module, a cycle selecting module, a...
Method and system for remote tuning and clock synchronization
The disclosed embodiments relate to a system for providing remote tuning and clock synchronization in a network. The system includes a device that receives a...
Digital receiver for radio-frequency signals
A system and method for receiving radio frequency signals, comprising a plurality of analog signal couplers, for communicating a representation of a radio...
Apparatus and method of encoding and decoding audio signal
In one embodiment, a channel in a frame of the audio signal is subdivided into a plurality of blocks according to a subdivision hierarchy. The subdivision...
Identification of changes in broadcast database
A method of acquiring repetitively broadcast data comprises acquiring the data in fragments, acquiring a document comprising information on the fragments,...