Patents

Searching:





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-7,372,914 Control system methods and apparatus for inductive communication across an isolation barrier
Improved control apparatus and methods transfer information between devices, such as controllers and field devices, utilizing a modulator that generates a pulse...
US-7,372,913 Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits
In a wireless transmitter having a plurality of spatial streams differentiable at a receiver, wherein data is encoded and transmitted over a communication...
US-7,372,912 Method and apparatus for allocating channelization codes for wireless communications
A data transmission method for a MIMO (Multiple-input Multiple-Output) system allowing multiple terminals to share channelization codes according to the channel...
US-7,372,911 Beam forming and transmit diversity in a multiple array radio communications system
A method and apparatus are provided for selecting transmission parameters for multiple transmit antenna arrays. In one embodiment, the invention includes...
US-7,372,910 Apparatus and method for generating preamble sequences in an OFDM communication system
An apparatus for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system using A subcarriers in a frequency...
US-7,372,909 Radio transmitting apparatus, radio receiving apparatus and method therefor
By assigning a plurality of subcarriers 31 to a data channel 33 and assigning fewer subcarriers 32 than the plurality of subcarriers 31 to a control channel 34,...
US-7,372,908 Radio communication method, radio transmitting apparatus, and radio receiving apparatus
A duplicating section 11 duplicates a bit sequence to be input, and a 16QAM section 121 modulates a bit sequence of a duplicating source to form a symbol, a...
US-7,372,907 Efficient and flexible oversampled filterbank with near perfect reconstruction constraint
A filterbank system is provided for reordering subbands of a wideband digital signal. The filterbank system extracts the subbands from a wideband digital input...
US-7,372,906 Compression circuitry for generating an encoded bitstream from a plurality of video frames
Data is discrete cosine transformed and streamed to a processor where quantized and inverse quantized blocks are generated. A second streaming data connection...
US-7,372,905 Filtering intensity decision method, moving picture encoding method, and moving picture decoding method
A moving picture coding apparatus including an inter-pixel filter having the filters for filtering decoded image data so as to remove block distortion which is...
US-7,372,904 Video processing system using variable weights and variable transmission priorities
In an encoding process, video data are represented as a bitstream of a quantized base layer and one or more enhancement layers, which capture the difference...
US-7,372,903 Apparatus and method for object based rate control in a coding system
A method and apparatus for selecting a quantizer scale for each object within a frame to optimize the coding rate is disclosed. A quantizer scale is selected for...
US-7,372,902 Pulse with modulation signal generating circuit
A PWM signal generating circuit outputs a stable PWM signal for increasing and deceasing a duty ratio at a predetermined rate within a predetermined period...
US-7,372,901 Method and apparatus for modem rate adaptation
A method and system for dynamically determining transmission characteristics of a modem transmitting information over a network is disclosed. The method...
US-7,372,900 Method and system for selecting an optimal asymmetric digital subscriber line mode
A method and system of the present inventions are directed to selecting an optimal mode for ADSL operation based near/far end modem capability, loop length and...
US-7,372,899 Reduced symbol rate handshake signaling in ADSL systems
In an asynchronous digital subscriber line (ADSL) system comprising a central office High Speed ADSL Terminating Unit (HSTU-C) in bi-directional discrete...
US-7,372,898 Path loss measurements in wireless communications
A method for determining uplink power requirements for a transceiver in a wireless communication system includes obtaining measurements from a beacon signal...
US-7,372,897 Portable information communication terminal, program, and recording medium
The number of times for averaging operation for averaging a correlation value of a received signal and a reference signal is properly controlled. When the...
US-7,372,896 Iterative detection and decoding for a MIMO-OFDM system
Techniques to iteratively detect and decode data transmitted in a wireless (e.g., MIMO-OFDM) communication system. The iterative detection and decoding is...
US-7,372,895 Method of and system for delay estimation with minimized finger allocation
A signal-path delay-estimation method includes correlating a computed coarse delay profile of at least one detected signal path cluster with a waveform to yield...
US-7,372,894 Method of processing a signal by a radio receiver and radio receiver for the implementation of the method
In a spread spectrum digital radiocommunication receiver, a first estimate of a symbol transmitted by a sender is calculated by applying to a radio signal...
US-7,372,893 Device and method for compensating for phase distortion in base station of OFDMA-based cellular system
Disclosed is a device and method for compensating for phase distortions in a base station of an OFDMA-based cellular system. The method comprises receiving OFDM...
US-7,372,892 Simple and robust digital code tracking loop for wireless communication systems
A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A...
US-7,372,891 Signal generator and decoder
A signal generator and decoder are used for a single sideband spread spectrum signal. A single sideband spread spectrum signal generator and decoder in which...
US-7,372,890 Methods and systems for detecting and mitigating interference for a wireless device
In at least some embodiments, a method for mitigating interference between an Ultra Wideband (UWB) device and a non-UWB device is provided. The method includes,...
US-7,372,889 Mobile station capable of and a method for generating chip patterns for transmission
A mobile station that wirelessly transmits to a base station by DS-CDMA a signal spread by multiplying a spreading code includes a chip-pattern generating unit...
US-7,372,888 Method and apparatus for software reconfigurable communication transmission/reception and navigation signal...
The method and device performs spread spectrum based communication and/or navigation. Device embodiments may include a receiver having a plurality of...
US-7,372,887 Excimer laser device, laser gas exchange method and partial gas exchange quantity calculation method
To provide an excimer laser device and method in which the frequency of full gas exchange within the laser chamber is reduced, and more preferably full gas...
US-7,372,886 High thermal conductivity vertical cavity surface emitting laser (VCSEL)
A light generating device such as a VCSEL includes a light generation layer, a top reflector, a bottom reflector, and a high thermal conductivity (HTC) layer...
US-7,372,885 Semiconductor laser device and optical information recording apparatus provided therewith
A semiconductor laser device that offers higher coupling efficiency to a pickup optical system by dramatically reducing the amount of difference between the...
US-7,372,884 Semiconductor laser driving circuit, light emitting device, and disk drive
A semiconductor laser driving circuit has a circuit protection function at low temperature and includes a voltage current converter that converts an input...
US-7,372,883 Light emitting device driver circuit
A driver circuit is designed employing a current sensing circuit adapted to sense driving current being supplied to one or more light emitting devices. The...
US-7,372,882 Driving circuit for and semiconductor device for driving laser diode
A driving circuit supplies a suppression current (I4) which reduces a decrease in a driving current (Idrive) immediately after occurrence of an overshoot at the...
US-7,372,881 Semiconductor laser wavelength control device
A semiconductor laser wavelength control device capable of controlling the optical wavelength constant even if the optical output intensity of the semiconductor...
US-7,372,880 Optical pulse lasers
The present invention provides pulsed lasers which employ carbon nanotubes, particularly layers of carbon nanotubes, as saturable absorbers, mode lockers or for...
US-7,372,879 Wavelength locker using modulator current and photodetector
The wavelength of light emitted by a laser and modulated by a frequency response modulator is determined from the power of the emitted light and the current...
US-7,372,878 Method and system for preventing excessive energy build-up in a laser cavity
A method and system decrease the amount of undesired laser radiation reaching a workpiece from a laser having a laser cavity and a Q-switch. The laser operates...
US-7,372,877 Fiber laser unit
Fiber laser unit 1 comprises a plurality of fiber lasers 2 and 3 that generate laser beams by exciting a laser active substance inside cores 2a and 3a by...
US-7,372,876 Method for setting up a useful data link between terminals in a VoIP system
At least one switching instance is provided in a VoIP system in order to set up a useful data link between a calling terminal and a called terminal. A first...
US-7,372,875 Systems and methods for synchronization in asynchronous transport networks
Techniques for synchronizing the clock of a local telecommunications network connected to a remote clock source through an asynchronous transport network such as...
US-7,372,874 Method and device for synchronisation in OFDM
A method of synchronising an Orthogonal Frequency Division Multiplexed (OFDM) IEEE 802.11a data packet at a receiver is disclosed. The 802.11a data packet has a...
US-7,372,873 Reconstructing a partial transport stream
A method and a system for reconstructing a partial transport stream are described. One embodiment of the method includes time-stamping each packet when the...
US-7,372,872 System and method for monitoring upstream and downstream transmissions in cable modern system
A network monitor includes means for monitoring downstream traffic from a cable modem termination system (CMTS) to a cable modem (CM), means for monitoring...
US-7,372,871 Techniques to reduce information loss and translation costs in a system populated with data sources and sinks...
Techniques for reducing overall information loss and processing costs due to data translation in a network populated with communicating data sources and sinks of...
US-7,372,870 Ethernet transmission apparatus with a quick protective and fair attribute and its method
An Ethernet transmission apparatus having a quick protection and fair attribute as well as a corresponding method are disclosed. The apparatus comprises a...
US-7,372,869 Device and method for the packet based access of classical ISDN/PSTN subscribers to a switching system
The invention relates to a device and to a method for the packet-based access of classical ISDN/PSTN subscribers to a switching system. The convergence of...
US-7,372,868 Mobile agent connectivity
Mobile agent connectivity includes dynamically determining addressing information for a mobile device at a mechanism configured to provide the mobile device with...
US-7,372,867 Method and apparatus to provide channel access parameter
Briefly, a method and apparatus to a channel access parameter to mobile units of a wireless communication network. The channel access parameter may be selected...
US-7,372,866 Wireless communication method for avoiding mutual interference between wireless communication systems, and...
The present invention discloses an apparatus and method for avoiding mutual interference between wireless communication systems. A measurement unit measures the...
US-7,372,865 Processing data packets using time stamped marker packets
According to one embodiment, processing data packets includes inserting marker packets into a data stream at time intervals. Each marker packet includes a...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | Next →