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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 8189622 | Method for transmitting pilot allocation information to user equipment in a multi-user multiple input multiple output system A method for transmitting pilot allocation information from a base station for reception by at least one of a plurality of mobile stations participating in a Multi-User Multiple Input Multiple Output (MU-MIMO) communication, the method including the steps of generat... | 05/29/2012 |
| 8027367 | Methods and apparatus for multi-carrier communication systems with adaptive transmission and feedback An arrangement is disclosed where in a multi-carrier communication system, the modulation scheme, coding attributes, training pilots, and signal power may be adjusted to adapt to channel conditions in order to maximize the overall system capacity and spectral effici... | 09/27/2011 |
| 7912092 | Systems and methods for transmitting a transmission time interval signal with staggered reference signals A method for transmitting a transmission time interval signal in a cellular network is described. A multiplexed data signal is received. A demultiplexer is applied to the data signal. The data signal from the demultiplexer is encoded. A linear transform is applied t... | 03/22/2011 |
| 7907637 | Fast acquisition in mobile multimedia multicast systems A technique of acquisition in a MediaFLO™ (Forward Link Only) mobile multimedia multicast system, wherein the method comprises receiving a superframe comprising a first digital symbol in a receiver operating in a first state of operation; assuming the first receiv... | 03/15/2011 |
| 7907636 | Radio apparatus A modem unit inputs a plurality of combinations, of control signal and data signal, which are to use a plurality of subcarriers. In a plurality of combinations the modem unit adds a first known signal for data signals contained at least in a first combination, and i... | 03/15/2011 |
| 7903691 | Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern. The pilot pattern selects pilot symbol positions based o... | 03/08/2011 |
| 7822069 | Phase correction for OFDM and MIMO transmissions Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division multiplexing (OFDM) and/or multiple-input multiple-output (MIMO) transmission.... | 10/26/2010 |
| 7813380 | Method of processing a signal and apparatus for processing a signal A method and apparatus for signal processing which enable data compression and recovery with high transmission efficiency are disclosed. Data coding and entropy coding are performed with correlation and grouping is used to increase coding efficiency. A method for si... | 10/12/2010 |
| 7764712 | Radio transmitting apparatus, radio receiving apparatus, radio transmitting method and radio receiving method A radio transmitting apparatus and the like for improving the reception error rate characteristic. In this apparatus, a data modulating part (121) modulates a data signal to provide a modulated symbol. A Q-inverting part (125) generates a symbol that c... | 07/27/2010 |
| 7760765 | System and method for the reacquisition of a gated pilot Systems and techniques are disclosed wherein a gated pilot signal can be re-acquired faster by searching a last known pilot offset and/or searching a last coset in which the last pilot signal was found. ... | 07/20/2010 |
| 7471702 | Methods and apparatus for implementing, using, transmitting, and/or receiving signals at least some of which include intentional null tones Base stations transmit strip signals using strip signal segments and self supporting modulation scheme techniques facilitating rapid channel estimate. A strip segment occupies one OFDM symbol time interval and uses a set of downlink tones; some, e.g., half, of the t... | 12/30/2008 |
| 7436758 | Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system An apparatus and method for transmitting/receiving a pilot pattern set to distinguish a base station in an FDM communication system. The method divides a total frequency bandwidth into at least two sub-bandwidths including a plurality of sub-carriers in an OFDMA (Or... | 10/14/2008 |
| 7433339 | Data transmission method and equipment Equipment for transmitting a signal, the equipment comprising an antenna array (600-606) for providing three or more radiation antenna patterns. The equipment is arranged to transmit a primary common pilot signal with at most two radiation patterns and... | 10/07/2008 |
| 7366226 | Pilot channel tracking method based on multipath barycenter tracking loop The present invention discloses a method for pilot channel tracking based on multipath channel barycenter tracking loop, comprises steps of evaluating multipath fading channel parameters, calculating the barycenter of a multipath energy window, and loop filtering an... | 04/29/2008 |
| 7363009 | Method and apparatus for determining propagation delays for use in wide area networks A system and method for determining a signal propagation delay between a transmitter and a receiver, and for adjusting a transmission time based on the propagation delay. A central station inserts a marker into a transmitted signal at a time corresponding to a recei... | 04/22/2008 |
| 7356309 | Directional coupler for communication system An improved directional coupler that significantly reduces the signal degradation problems associated with distortion caused by circuit elements used to measure the transmitted power. In a selected embodiment, the directional coupler of the present invention compris... | 04/08/2008 |
| 7336696 | Acquisition of a code modulated signal The invention relates to an apparatus supporting an acquisition of a received code modulated signal by determining the correlation between the received code modulated signal and an available replica code sequence at different code phases. It is proposed that the app... | 02/26/2008 |
| 7330516 | Power control method for remotely deployed communication service A power control method for transceiver units conveying data over discrete tones. The method includes the steps of: determining a transmit power over a physical channel for each individual tone, such that this transmit power maximizes a weighted function of data rate... | 02/12/2008 |
| 7319718 | CQI coding method for HS-DPCCH In the channel quality information (CQI) coding method of the present invention, first basis sequences for generating sub-codes of 32 bits are created, and second basis sequences for generating codewords of 20 bits are created using the first basis sequences, the se... | 01/15/2008 |
| 7317933 | Method for measuring the time of arrival of a radio signal, receiver and system to carry out the method The method measures the time of arrival at a radiocommunication receiver of a received radio signal originating from a transmitting station. A received signal component is stored in a memory of the receiver. An estimation of the information bits carried by the signa... | 01/08/2008 |
| 7313174 | Method for extracting a variable reference pattern A method is provided for extracting a sequence of pilot symbols enabling to estimate the transfer function of a transmission channel. At least a radiocommunication device communicates through the channel with a remote station, the latter regularly delivering to the ... | 12/25/2007 |
| 7310393 | Method and apparatus for synchronization of the OFDM systems A method and apparatus for the signal synchronization of an orthogonal frequency division multiplexing system includes a delay conjugate multiplication module, a phase processor and an edge detector. It provides estimates for the boundaries of inter-symbol interfere... | 12/18/2007 |
| 7308063 | Apparatus, and associated method, for effectuating post-FFT correction of fine frequency offset In an orthogonal frequency division multiplexing (OFDM) system, a receiver of an OFDM signal via an air interface defines training symbols to be included in the frame structure of the air interface and a post-FFT receiver algorithm that can efficiently estimate a fr... | 12/11/2007 |
| 7298773 | Apparatus and method for reporting service load to mobile station in mobile telecommunication system There is provided a method and apparatus for selecting an appropriate base station and an optimal data rate to provide a voice service and a data service based on a voice service load in a CDMA system. A base station transmits two pilot signals orthogonally spread w... | 11/20/2007 |
| 7292606 | Two-stage symbol alignment method for ADSL transmission in the presence of TCM-ISDN interferers Method embodiments for achieving hyperframe symbol synchronization are disclosed, along with device and system embodiments for implementing such methods. In one embodiment, the method comprises: receiving a pilot signal having at least two phase states; measuring th... | 11/06/2007 |
| 7283510 | Wireless receiver estimating power of interference By providing a interference power estimation unit obtaining the power of interference in a common pilot signal with ten symbols in one slot and outputting the power of interference as the estimate of the amount of interference in the data signal's pilot signal and a... | 10/16/2007 |
| 7280563 | Multi-carrier signal transmitter and multi-carrier signal receiver In transmitting first information necessary for gaining synchronism of transmission signal and second information which is the other information by determining a break of a single modulation unit with a simple structure and processing prior to Fourier transformation... | 10/09/2007 |
| 7257094 | Jointly controlling transmission rate and power in a communications system The present invention jointly controls rate and power in a fashion that enables control of the two variables in one dimension. In some embodiments, this is done by ordering the possible transmit rate (320) and transmit power (340) combinations in a log... | 08/14/2007 |
| 7245946 | Optimal power saving scheduler for 802.11e APSD A new system and method is described, utilizing a scheduler based on a transmission power consumption calculation and prioritizing algorithm. The system utilizes the (APSD) protocol specified in the 802.11e draft for saving power in wireless local area networks. The... | 07/17/2007 |
| 7242722 | Method and apparatus for transmission and reception within an OFDM communication system In an OFDM system the same Walsh code is used at the same time for a plurality of transmitters. The multiple transmitters can be from the same, or different devices (e.g., different base stations on the downlink, different terminals on the uplink). Each subcarrier/a... | 07/10/2007 |
| 7236468 | Apparatus and method for generating reference timing in a CDMA mobile communication system A cell search apparatus and method in a W-CDMA mobile communication system. The cell search apparatus and method performs a first cell search step, a second cell search step, and a third cell search step using a slot count value and a lower count value, counted by a... | 06/26/2007 |
| 7236778 | System and method for testing transceivers A method includes communicating a first signal at a transmitter. The first signal has a first frequency. The method also includes receiving a second signal at a receiver. The second signal has a second frequency, and the second signal comprises the first signal conv... | 06/26/2007 |
| 7227854 | Apparatus and method for transmitting CQI information in a CDMA communication system employing an HSDPA scheme A user equipment (UE) located in a soft handover region transmits channel quality indicator (CQI) information bits for informing a Node B of quality of a downlink channel through a CQI field and a high speed pilot (HS-Pilot) field constituting a subframe of an uplin... | 06/05/2007 |
| 7203255 | Method and system to implement non-linear filtering and crossover detection for pilot carrier signal phase tracking Systems and methods for correcting phase ambiguity in a total pilot phase value are presented. Examples include comparing and correcting total pilot phase values having different pilot frequencies within the same sampling interval, such as the same data symbol. Anot... | 04/10/2007 |
| 7194276 | Methods and devices for grouping cells Rounded solutions of a linear program are used to partition or group cells, such as cells in a wireless network, in order to provide efficient approximations of network updating and paging costs. ... | 03/20/2007 |
| 7099959 | Network comprising a plurality of network nodes and at least one star node The invention relates to a network comprising a plurality of network nodes. At least part of the network nodes are directly intercoupled via at least one star node. The star node contains a plurality of star interfaces which are assigned to at least one network node... | 08/29/2006 |
| 7079848 | Network controlled fast cell switching A method that globally allocates resources of a communication system. A global fast scheduler receives global CQI information from UEs of a communication system. The global fast scheduler determines a resource allocation value and assigns a UE to any available cell ... | 07/18/2006 |
| 7065696 | Method and system for providing high-speed forward error correction for multi-stream data A system for providing a high-speed implementation for multi-stream forward error correction (FEC) is provided. According to one exemplary aspect, the system is able to provide block-based multi-stream FEC that reduces the power consumption when compared with conven... | 06/20/2006 |
| 7061897 | Mobile telephone for internet-applications A mobile telephone for Internet applications comprising at least one WEB server which can be coupled to at least one further server and to at least one client. ... | 06/13/2006 |
| 7050603 | Watermark encoded video, and related methods Watermarks in video signals or the accompanying audio track are used to associate video objects in a video sequence with object specific actions or information. A video object refers to a spatial and temporal portion of a video signal that depicts a recognizable obj... | 05/23/2006 |
