Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7369620 | Channel noise estimating method and apparatus applied to a multi-carrier system A channel noise estimating method and apparatus applied to a multi-carrier system are disclosed, where data symbols received by a receiving unit are applied to reconstruct the original transmitted data symbols. The reconstructing process is performed by either a sof... | 05/06/2008 |
| 7366258 | Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion A system for mitigating impairment in a communication system includes a delay block, a signal level block, a moving average window block, an impulse noise detection block, and a combiner. The delay block receives and delays each chip of a plurality of chips in a spr... | 04/29/2008 |
| 7366137 | Signal-to-noise estimation in wireless communication devices with receive diversity This disclosure is directed to techniques for estimating signal-to-noise ratio (SNR) of signals received by a wireless communication device. The techniques take advantage of spatial receive diversity in a wireless communication device to achieve accurate estimates o... | 04/29/2008 |
| 7366492 | Method and system for mobile location detection using handoff information Methods and systems for mobile station location detection. A mobile station measures signal strength of each of a set of signals associated with the mobile station, then determines whether a number of signals in the set is less than a predetermined threshold. Based ... | 04/29/2008 |
| 7366490 | Automatic gain control with gain stepping and regulation An automatic gain control device and a related method for its operation, using a first-order control loop for adjusting a received communication signal to compensate for variations in received signal power. The device bases its adjustments on a measure of the averag... | 04/29/2008 |
| 7366746 | Finite impulse response filter method and apparatus Finite response filters (FIRs) are divided into partial filters that filter a same portion of image data to generate partial filtered results. The partial filtered results may be saved and later retrieved to generate complete filter outputs. ... | 04/29/2008 |
| 7366475 | Signal strength measurements in cellular telecommunication systems A mobile station (MS) and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures the received signal strength of the radio signal over a plurality of frames, and calcula... | 04/29/2008 |
| 7366477 | Redundancy version implementation for an uplink enhanced dedicated channel This invention describes a method for a redundancy version implementation of an uplink (UL) enhanced dedicated channel (E-DCH) in mobile communication systems by calculating a redundancy version number (RVN) as a function of a connection frame number (CFN), a maximu... | 04/29/2008 |
| 7366155 | Allocation of radio resources from a network in a packet switched data transmission system A method for allocating radio resources in a packet-switched data transmission system in two phases, in which system a terminal is capable of communicating with a network over a radio interface by using packet transfer mode, including: generating and sending from th... | 04/29/2008 |
| 7366163 | Method for providing local and toll services with LNP, and toll-free services to a calling party which originates the call from an IP location connected to a sip-enabled IP network A method for providing combined local, toll, toll free services, and number portability, to a calling party originating calls from an IP-based communication devices which are coupled to an IP-based multi-media service provider. The method includes receiving a SIP IN... | 04/29/2008 |
| 7366202 | System and method for interference mitigation for wireless communication Disclosed are systems and methods which provide interference mitigation by making alternative resources available within areas served by wireless communication links. Embodiments provide multiple channel availability in establishing wireless communication links to f... | 04/29/2008 |
| 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 |
| 7365699 | Independently center fed dipole array A dipole array is provided for use as an Ultra Short Pulse (USP) transmitter or receiver in UWB communications systems, which reduces the output pulse dispersion. Instead of having all the dipole elements serially fed by a transmission line, the feeding in the array... | 04/29/2008 |
| 7366129 | Communication node for enabling interworking of network using request/response based data transfer and network using non-request/response based data transfer A communication node for enabling interworking of a first network in which data transfer is based on a combination of request and response and a second network in which data transfer is not based on a combination of request and response is disclosed. In the communic... | 04/29/2008 |
| 7366141 | Cell search method and apparatus in a WCDMA system A cell search method for use in a mobile communication system, the method including: performing one or more identification steps for identifying timing and codes of oversampled input signals; and reducing the resolution of the oversampled input signals before perfor... | 04/29/2008 |
| 7366227 | Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals In a spread spectrum system, methods and despreader architectures for despreading the received spreaded codes with the use of a single correlator and a single correlation code is provided. Before despreading the incoming received spreaded codes, a single correlation... | 04/29/2008 |
| 7366154 | Forward error correction scheme for high rate data exchange in a wireless system A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high dat... | 04/29/2008 |
| 7366228 | Synchronization detecting apparatus In a channel estimating circuit, a Sync Word is demodulated by using a channel estimation value not with a symbol or a slot including the Sync Word to be demodulated, but with its preceding and succeeding symbols or slots. Furthermore, in a channel estimation proces... | 04/29/2008 |
| 7366259 | Channel estimator The present invention is a channel estimator based on the values of received data and on a priori probabilities only of received symbols. The channel estimator includes a symbol probability generator, a noise variance estimator and a channel tap estimator. The symbo... | 04/29/2008 |
| 7362739 | Methods and apparatuses for detecting clock failure and establishing an alternate clock lane Methods and apparatuses for determining clock failure for a multi-agent system employing a link-based interconnection scheme using a forwarded clock. For one embodiment of the invention, the cessation of the forwarded clock initiates a clock failure determination pr... | 04/22/2008 |
| 7362733 | Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system A transmitting/receiving apparatus and method for packet retransmission in a mobile communication system. Upon request for a retransmission from a receiver, a transmitter generates first coded bits by inverting initially transmitted coded bits, generates second code... | 04/22/2008 |
| 7362831 | Method and device for sequencing signals from multiusers Method for ordering a number K of given users in a digital signal equalizing and decoding device receiving the signals from the K users comprising at least the following steps: a step in which the K users, or at least the majority ... | 04/22/2008 |
| RE40253 | Apparatus for making a random access to the reverse common channel of a base station in CDMA and method therefor An apparatus for making a plurality of terminals have a random access to the reverse common channel system in CDMA, comprises code synchronization detection information broadcast means provided in the base station for broadcasting the state information of a channel ... | 04/22/2008 |
| 7359466 | Signal detection by a receiver in a multiple antenna time-dispersive system In a MIMO system the bit error rate floor caused by time dispersion is reduced by employing a joint minimum mean square error (MMSE) equalizer for all of the respective transmit antenna—receive antenna pairings that are possible in the MIMO system. The resulting j... | 04/15/2008 |
| 7359342 | CDMA receiver, and path management method and path management program thereof A CDMA receiver capable of reducing path search processing time. A CDMA receiver comprises a path search section for specifying finger allocation according to delay profiles of respective branch signals received from base stations, a plurality of fingers which are a... | 04/15/2008 |
| 7359341 | Radio communication system A TDMA radio communication system uses a multiple sub-carrier modulation method. The TDMA radio communication system comprises at least a first and a second radio station. The second radio station selects only those sub-carriers capable of providing a transmission r... | 04/15/2008 |
| 7359365 | Hybrid CDM/TDM signaling for packet acknowledgment method and apparatus A common signaling channel (CSC) conveys signaling information units (SIUs) from a base station (BS) to each of a multiplicity (e.g., 1200) of different mobile stations (MSs). Implicit correspondence between particular CSC and data frames is facilitated by basing CS... | 04/15/2008 |
| 7359345 | Signaling method between MAC entities in a packet communication system A signaling method between a MAC (Medium Access Control) layer entity of a transmission apparatus and a MAC layer entity of a reception apparatus in a packet communication system including the transmission apparatus and the reception apparatus wherein upon receiving... | 04/15/2008 |
| 7359446 | Methods and devices for decoding signals containing noise and distortion “Reliability-related” values are assigned to received signal samples containing noise and distortion. The samples are then sent to a Viterbi decoder in order to regenerate originally transmitted messages. ... | 04/15/2008 |
| 7359399 | CDMA path protection method based on path protection information A path protection method for a CDMA reception apparatus is disclosed, which obtains correlation value levels while shifting the despreading timing of reception data little by little, searches for optimal reception timings, outputs a plurality of finger path timings,... | 04/15/2008 |
| 7359424 | Spread spectrum communication system and method therefor A spread spectrum communication system and a method can provide resistance against selective fading and can prevent lowering of circuit use ratio with lowering reception bit error ratio. The spread spectrum communication system has a control unit for controlling a t... | 04/15/2008 |
| 7359427 | Rach ramp-up acknowledgement An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum r... | 04/15/2008 |
| 7355980 | Costs in data networks A method for deriving a set of efficient path costs for a group of nodes comprising a source node and a plurality of destination nodes in a data communications networks, wherein the path costs for paths between nodes in the group are defined in the network and each ... | 04/08/2008 |
| 7356004 | Data transmission method for a mobile communication system This invention provides a mobile communication system which expanded the operation limitation of the heretofore adopted mobile communication systems and improved the spectrum efficiency greatly. A data transmission method for use in the mobile communication system o... | 04/08/2008 |
| 7356006 | Method of overhead channel transmission in mobile communication system and apparatus using the same A method of performing a reverse-link packet data service in a communication system is provided, by which a reverse packet data service is available at a high data rate in the reverse link supporting a variable data rate without additional Walsh code allocation. The... | 04/08/2008 |
| 7356008 | Method of assigning one or more spreading sequences to users of a multi carrier transmission network A method of assigning one or more spreading sequences to users of a Multi Carrier transmission network, each element of the spreading sequence being, at a transmitter of the network, multiplied by a data item to be transmitted and then transmitted on a corresponding... | 04/08/2008 |
| 7356016 | System and method for deleting tunnelling in connection between mobile node and correspondent node Provided are a system and method for deleting tunneling when a correspondent node is connected to a mobile node that has moved to a different network. The system includes a domain name service server, a mobile node that moves to a different network, a domain name dy... | 04/08/2008 |
| 7356037 | Telecommunication system and method for transmitting data A telecommunication system includes a base station, a router allocated to the base station, and several subscriber stations that are connected to the base station via an access network. Subscriber station routers set up a telecommunication link with the base station... | 04/08/2008 |
| RE40231 | High data spread spectrum transceiver and associated methods A spread spectrum radio transceiver includes a high data rate baseband processor and a radio circuit connected thereto. The baseband processor preferably includes a modulator for spread spectrum phase shift keying (PSK) modulating information for transmission via th... | 04/08/2008 |
| 7356005 | Apparatus and associated method, by which to facilitate scheduling of data communications in a radio communications system Apparatus, and associated method, for facilitating reverse link scheduling in a CDMA 2000 communication system (FIG. 1, 10) that provides for high data rate communication services, such as 1xEV-DV communication services. Power control bits ( | 04/08/2008 |
