| Patent application number | Description | Published |
|---|
| 20080232499 | METHOD OF APPROXIMATING LOG-LIKELIHOOD RATIOS IN QAM DIGITAL TRANSMISSIONS AND RELATIVE QAM SOFT-OUTPUT DE-MAPPER - Log-likelihood ratios are approximated for encoded bits modulated with a 2 | 09-25-2008 |
| 20090135934 | METHOD FOR THE TRANSMISSION ON MULTIPLE-CARRIER COMMUNICATIONS SYSTEMS, AND CORRESPONDING TRANSMITTER AND COMPUTER-PROGRAM PRODUCT - A method for loading bits over a set of subcarriers of a multiple-carrier communications system comprises the operation of associating with the subcarriers respective numbers of bits chosen from among a plurality of available constellations. The method envisages definition of a performance target for the system and execution of bit loading, guaranteeing the aforesaid target on a plurality of subcarriers. The performance target can be a target error rate, such as a bit-error rate (BER), or else be transferred into a constraint, such as, for example, a threshold, in a metric of log-likelihood ratios (LLRs). In this case, there is preferably envisaged application to the signals received within the multiple-carrier system a function that estimates a signal to noise ratio on each sub-carrier. The aforesaid metric of log-likelihood ratios (LLRs) is hence defined as a function of said signal to noise ratios. | 05-28-2009 |
| 20110002400 | METHOD OF TRANSMITTING A PACKET OF DIGITAL DATA OVER A POLY-PHASE POWER LINE AFFECTED BY IMPULSIVE NOISE - The method transmits a long packet of digital data over a poly-phase power line affected by impulsive noise synchronous with phase voltages. Instead of using very complicated coding schemes, starting from the knowledge of the typical power line scenario, useful information is transmitted where noise synchronous with the main signal is absent. Time-intervals of a known or estimated duration during which the poly-phase power line is affected by impulsive noise are determined, and dummy data during the time-intervals, and useful data during other time-intervals free from impulsive noise, are transmitted. | 01-06-2011 |
| 20110007858 | METHOD OF DETECTING A FRAME SYNCHRONIZATION PATTERN OR UNIQUE WORD IN A RECEIVED DIGITAL SIGNAL - The recognition of a frame synchronization pattern or unique word of a received signal may be enhanced using a data-aided estimator of the signal-to-noise ratio (SNR) together with a correlation detector of the unique word to be received. Detecting a frame synchronization pattern or a unique word in a received signal, the SNR is estimated on the received signal with a data-aided SNR estimator using the unique word to be received. If the estimated SNR exceeds a certain threshold, an eventual recognition of the unique word established by a correlation correlator of the receiver is considered reliable. Comparing the SNR with the threshold may be carried out either before or after the correlator has processed the unique word. | 01-13-2011 |
| 20110129040 | METHOD OF ESTIMATING LOG-LIKELIHOOD RATIOS AND RELATIVE S-FSK RECEIVER - A method of estimating log-likelihood ratios for first and second streams of samples of a received S-FSK signal demodulated using first and second carriers includes estimating channel and noise parameters associated with first and second transmitted values for the first and second streams of samples obtained from the received S-FSK modulated signal. Current signal-to-noise ratios are estimated for current samples of the first and second streams of samples obtained from the received S-FSK modulated signal using the channel and noise parameters. The estimated current signal-to-noise ratios are compared with values of a discrete ordered set and respective pairs of consecutive values of the discrete ordered set between which the estimated current signal-to-noise ratios are comprised are identified. Log-likelihood ratios are estimated for the current samples of the first and second streams. | 06-02-2011 |
| Patent application number | Description | Published |
|---|
| 20080225987 | Asynchronous interconnection system for 3D interchip communication - An embodiment of the present invention relates to a asynchronous interconnection system comprising a transmitter circuit and a receiver circuit inserted between inserted between respective first and second voltage references and having respective transmitter and receiver nodes coupled in a capacitive manner. The receiver circuit comprises: a recovery stage inserted between the first and second voltage references of the receiver circuit and connected to the receiver node; and a state control stage, in turn inserted between the first and second voltage references of the receiver circuit connected to the recovery stage correspondence with a first feedback node providing a first control signal and having a second feedback node connected in a feedback manner to the recovery stage. The recovery stage comprises a first feedback loop connected to the first feedback node and acting in such a way to recover a received voltage signal and a feedback loop connected to the second feedback node of the state control stage and acting in such a way to deactivate the recovery feedback on the receiver node and guarantee that the receiver node is let in a high impedance state. | 09-18-2008 |
| 20090168860 | COMMUNICATION SYSTEM BETWEEN A FIRST AND A SECOND SYNCHRONOUS DEVICE THAT ARE UNCORRELATED IN TIME - A communication system includes first and second independently clocked devices, comprising, for each device, a transmitter and a receiver connected to each other in a crossed way in correspondence of an inter-chip communication channel. The communication system further comprises a synchronizer in turn including at least a first and a second synchronization block, having respective input terminals connected to the receivers and respective output terminals connected to the transmitters and comprising at least: a test pattern generator that generates a programmable test pattern signal; a pattern detector to check a matching between stored and received test pattern signals and thus lock corresponding clock phases of the synchronization blocks in case of positive result of this check; and a delay block able to change the clock phases until a synchronized condition of the synchronization blocks is verified, this synchronized condition corresponding to a matching between stored and received test pattern signals. | 07-02-2009 |
| 20090168938 | COMMUNICATION SYSTEM FOR CONNECTING SYNCHRONOUS DEVICES THAT ARE UNCORRELATED IN TIME - A communication system for the connection between timing non-correlated synchronous devices comprising at least one transmitter and one receiver inserted between a first and a second voltage reference and connected to each other through a transmission channel in correspondence with respective transmitting and receiving terminals Advantageously, the receiver comprises at least one asynchronous input stage suitable for receiving on the receiving terminal a datum and associated with a synchronous output stage suitable for transmitting this datum in a synchronized way with a clock signal on a synchronized receiving terminal. A method transmits a datum from a transmitter to a receiver interconnected by a capacitive channel in a communication system for the connection between independently clocked devices. | 07-02-2009 |
| 20090218223 | Method And Apparatus For Characterizing And Counting Particles, In Particular, Biological Particles - The present invention relates to a method and an apparatus for the characterization and/or the counting of particles by means of non uniform, time variable force fields and integrated optical or impedance meter sensors. The force fields can be of positive or negative dielectrophoresis, electrophoresis or electro-hydrodynamic motions, characterized by a set of stable equilibrium points for the particles (solid, liquid or gaseous); the same method is suitable for the manipulation of droplets (liquid particles) by exploiting effects known to the international scientific community with the name of Electro-wetting on dielectric. The aim of the present invention is to act on the control of the position of each particle which is present in the sample, for the purpose of displacing such particles in a deterministic or statistical way, in order to detect their presence with the integrated optical or impedance meter sensors and/or characterize their type, for the purpose of counting or manipulating them in an efficient way. | 09-03-2009 |
| 20090288963 | METHOD AND APPARATUS FOR MANIPULATING SINGLE CELLS AND SMALL AGGREGATES THEREOF - A well, in particular an open well ( | 11-26-2009 |
| 20090325213 | DIAGNOSTIC AND THERAPEUTIC APPLICATION OF CTL AND NK FUNCTIONALLY SELECTED CELLS - The invention proposes a novel therapeutic and diagnostic methodology based on the use of effector cells (for example CTL and NK cells) selected for being able to induce lysis in target cells. In particular, the invention teaches how to select strains of effector cells of the immune system according to their lytic properties. It also teaches how diagnostic procedures for checking the activity of therapeutic vaccines can be improved with respect to what shown. Finally, it shows how cell therapies used at present can be improved by using this approach. | 12-31-2009 |
