Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8150433 | Beamforming method for wireless communication systems and apparatus for performing the same An improvement in a method of transmit beamforming between a transmitter (16) and a receiver (18) for a time varying lading channel comprises the step of performing transmit beamforming using less than complete knowledge of the previous fading blocks t... | 04/03/2012 |
| 7962163 | Broadcast receiving system, broadcast receiving method, relay apparatus, mobile station, and control program therefor A broadcast receiving system capable of keeping low the power consumption of a mobile station having a broadcast receiving unit for receiving an irregular broadcast is realized. A broadcast station transmits a broadcast notice for notifying that predefined contents ... | 06/14/2011 |
| 7941169 | Automatic network configuration apparatus and method between short-range wireless terminals Provided are an automatic network configuration apparatus and method between short-range wireless terminals. The apparatus includes a storing unit for storing a threshold range value for determining adjacency with an adjacent wireless terminal, a wireless environmen... | 05/10/2011 |
| 7925286 | Method, a program and a module to estimate a doppler maximum frequency and an oscillator frequency offset, receiver including the module A method of estimating a Doppler maximum frequency fd and/or a local oscillator frequency offset f0, the method comprising the steps of: computing a power density spectrum of a received radio signal over a whole frequency range, scanning the co... | 04/12/2011 |
| 7865202 | Method and system for I/Q branch equalization in OFDM systems Aspects of a method and system for I/Q branch equalization in OFDM systems may include determining a transfer function mismatch between an in-phase processing branch, and/or a quadrature processing branch in an OFDM receiver. The determined transfer function mismatc... | 01/04/2011 |
| 7444169 | Wireless base station apparatus and wireless communication control method A wireless base station apparatus (100) used in a wireless communications system includes a statistical processing unit (140) that performs statistical processing on downlink radio quality information reported from a wireless communications terminal de... | 10/28/2008 |
| 7440766 | Method for employing multipath propagation in wireless radio communications A method of employing multipath propagation in wireless radio communications uses an omnidirectional transmitting/receiving antenna at one end of a transmission link to send an interrogating signal across an environment subject to multipath disturbances to a phase-c... | 10/21/2008 |
| 7397803 | Method of dynamic transmit scheduling using channel quality feedback A method and system for dynamic rate switching via medium access channel layer signaling is disclosed, wherein data rates for high data rate channels are automatically shifted up or down based on a predetermined metric. In a preferred embodiment, data rates are auto... | 07/08/2008 |
| 7391817 | Method and apparatus for determining antenna weight in a closed-loop transmit diversity system A method and apparatus for adaptively determining weights for transmission antennas according to a channel condition in a closed-loop transmit diversity system using a plurality of transmission antennas. The antenna weights are determined using variation of channel ... | 06/24/2008 |
| 7330700 | Radio apparatus and method for determining the communication timing of a channel quality indicator (CQI) based on CQI update and CQI repetition count information When a CQI that is based on CQI update cycle information and a CQI that is based on repetition count information have an overlapping transmission timing, CQI transmission timing controller 110 and CQI transmission timing priority determiner 120 transmi... | 02/12/2008 |
| 7317936 | Vehicle intercommunication apparatus Two antennas are provided in a base station, one antenna AT1 is arranged at the root of a right handle grip [1R] and the other antenna AT2 is arranged at the root of a left handle grip [1L]. Alternatively, one antenna AT1 is arrang... | 01/08/2008 |
| 7310529 | Packet data traffic control for cellular wireless networks Data traffic over a plurality of data communications links of a wireless data communications system is controlled by identifying a poorly performing wireless link, and interrupting data communications over the poorly performing link. The data throughput of remaining... | 12/18/2007 |
| 7305213 | Receiver and wireless LAN apparatus in which a received signal is correlated to a reference symbol A receiver comprising: an antenna which receives a radio signal including N possible symbols {c1(n), c2(n), . . . cM−1(n), cM(n)}, an N correlation units which are provided cor... | 12/04/2007 |
| 7292609 | Method and apparatus for CDMA signal reception The N peaks are selected from a delay profile in order starting from the highest peak involved in the delay profile, the path level and path timing are determined for each of the selected peaks, and the identical paths individually responsible for different delay pr... | 11/06/2007 |
| 7283495 | Apparatus and method for managing dormant state in a wireless packet data system A wireless packet data system efficiently manages a location of a packet call in a radio environment. A mobile station transmits a location registration message to a target BSC when moving to the target BSC adjacent to a source BSC. Upon receipt of the location regi... | 10/16/2007 |
| 7281151 | Method of stopping data communication of a communication apparatus based on a detection of a power supply voltage drop In data communication apparatus for communicating with another data communication apparatus via cables, when a power supply voltage applied to the data communication apparatus drops and the application of the power supply voltage is stopped, a power-supply-voltage-d... | 10/09/2007 |
| 7266346 | Base station apparatus and communication terminal apparatus A reception quality reporting system may include a communication terminal that measures reception directivity quality in a quality decision signal received from a base station apparatus. The communication terminal decides a switching timing at which directivities of... | 09/04/2007 |
| 7266355 | Low complexity equalizer for radio receiver A diversity receiver (60) has two diverse channels fed by the antennas, an adaptive equalizer (20,30) for each channel and a coefficient adapter (40) for adapting two sets of coefficients in a time shared manner for the equalizers. A combiner co... | 09/04/2007 |
| 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 |
| 7239885 | Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel A method for initial downlink transmit power adjustment for non-real time services in a wireless communications network begins by estimating an initial downlink transmit power level for non-real-time services. The estimated power level is then compared with a thresh... | 07/03/2007 |
| 7231441 | Virtual beacon system A system for providing information about physical entities to users includes an information server accessible to a plurality of user-held receivers. An exemplary server has access to characteristic accessibility data for candidate physical entities. The server recei... | 06/12/2007 |
| 7231559 | Outage predictor for communication link A device for estimating a likelihood of a wireless link outage includes a memory, a variability calculator, and an outage predictor. The memory maintains a history of signal quality for a signal received from a transmitter. The variability calculator is coupled to t... | 06/12/2007 |
| 7224994 | Power control method for handling frame erasure of data in mobile links in a mobile telecommunication system A method for substantially reducing the frame erasure rate (FER) to approximately 1 percent dynamically changes the power down to power up ratio from 100 to 1 to 200 to 1 to minimize subsequent frame erasures. During call startup periods the method (60) loose... | 05/29/2007 |
| 7224942 | Communications system employing non-polluting pilot codes Transmitting non-polluting dummy pilot signals in a wireless communication network permits estimation of the downlink propagation channels between a number of joint transmitters and a lesser number of receivers. With fewer receivers than transmitters, loop back info... | 05/29/2007 |
| 7174179 | Methods and apparatus for mitigating rain fading over SATCOM links via information throughput adaptation A remote communications terminal accesses a terrestrial network or information source via a SATCOM link with an earth station hub linked to the network or information source. Information throughput adaptation (ITA) is employed on the SATCOM link to maximize informat... | 02/06/2007 |
| 7174170 | Self-selection of radio frequency channels to reduce co-channel and adjacent channel interference in a wireless distributed network A wireless network node and a network provide for automatic self-deployment of the radio frequency channels without the need for preplanning. Each wireless network node adapts to the inclusion of a new node and to changing local conditions without requiring manual c... | 02/06/2007 |
| 7162207 | System, apparatus, method and computer program for producing signals for testing radio frequency communication devices A system, apparatuses, a method, and a computer program for producing signals for testing radio frequency communication devices are provided. The system comprises a non-real-time domain which includes a data generator for supplying a temporally discontinuous data st... | 01/09/2007 |
| 7158490 | Apparatus, and associated method, for effectuating power control of a communication device Power control apparatus, and an associated method, for controlling communication signals generated during operation of a communication system, such as an IS-953G cellular communication system. Determinations are made as to whether a communication channel upon which ... | 01/02/2007 |
| 7139336 | Method and system for channel estimation using iterative estimation and detection A method and system are directed to enabling a detector to perform relatively accurate channel estimates on blocks of data that include relatively short training sequences in wireless communication signals. Channel re-estimation is performed by transferring the esti... | 11/21/2006 |
| 7139328 | Method and apparatus for closed loop data transmission A method for communicating a plurality of data streams between a transmitting device with multiple transmit antennas and a receiving device, is disclosed. The method comprises determining a set of power weightings, efficiently quantizing the power weightings, and pr... | 11/21/2006 |
| 7133436 | Path detection apparatus in CDMA reception device A path detection apparatus for use in a CDMA reception device includes: storage means for storing a delay profile; and path detection means for detecting a path by reading the delay profile from the storage means, and performing a rake-combining process based on the... | 11/07/2006 |
| 7127252 | Radio terminal equipment The object of a radio terminal equipment is to achieve a highly accurate channel control and a favorable transmission quality. In order to achieve the object, in the radio terminal equipment, a channel controlling means is given in advance a period which accordingly... | 10/24/2006 |
| 7099679 | Method of saving power by reducing active reception time in standby mode In some embodiments of the present invention, a signal received by a mobile communication station in standby mode is sampled. The samples are converted to digital samples and stored in a memory. The digital samples include data from a base communication station to t... | 08/29/2006 |
| 7099673 | Mobile communication system, and a radio base station, a radio apparatus and a mobile terminal A mobile communication system comprises a detecting unit to detect information concerning a moving speed of a mobile terminal, and a selection controlling unit to select a use frequency in a higher frequency band when the speed information detected by the detecting ... | 08/29/2006 |
| 7092451 | Information hiding system and a method of hiding information in a wireless communication network For use in a wireless communication network that includes a transmitter having a multi-element transmit antenna array, an information hiding system and a method of hiding information. In one embodiment, the information hiding system includes an information spreading... | 08/15/2006 |
| 7089037 | System and method for improving capacity gain while maintaining call performance in a wireless communications system A system and method for maximizing throughput in a telecommunications system is disclosed. The system includes an antenna system using fixed narrow beams that transmits and allows improved capacity gain to be realized without degrading call performance. The system c... | 08/08/2006 |
| 7079846 | Control of network element supporting variable transmission modes There is disclosed a network in which there is provided a method of controlling a network element having variable transmission modes, comprising: defining the available transmission modes in the network; and storing the defined transmission modes in a network elemen... | 07/18/2006 |
| 7079867 | Semi-blind transmit antenna array device using feedback information and method thereof in a mobile communication system There is provided a transmit antenna array device with at least two antennas and a method thereof in which a transmission beam is appropriately formed based on a weight vector to be transmitted to a specific mobile station in a mobile communication system. For this ... | 07/18/2006 |
| 7079514 | Mobile communication apparatus with antenna array and mobile communication method thereof A mobile communication apparatus with an antenna array and a mobile communication method therefore, wherein the apparatus includes a base station with an antenna array and a mobile station, wherein the mobile station determines a channel downlink characteristic for ... | 07/18/2006 |
| 7072409 | Space multiplex radio communication method and radio communication apparatus A radio communication system is comprised of: a transmitting system in which N transmission signals, frequency-converted to the same transmission frequency, are generated by N transmitters, N being an integer equal to or greater than 2, and the transmission signals ... | 07/04/2006 |
