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 |
| 7440426 | Method and apparatus for reverse link overload detection A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to ... | 10/21/2008 |
| 7336952 | Method and system for hard handoff in a broadcast communication system A method and system for a handoff in a broadcast communication system is disclosed. A subscriber-assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the ot... | 02/26/2008 |
| 7324429 | Multi-mode terminal in a wireless MIMO system A user terminal supports multiple spatial multiplexing (SM) modes such as a steered mode and a non-steered mode. For data transmission, multiple data streams are coded and modulated in accordance with their selected rates to obtain multiple data symbol streams. Thes... | 01/29/2008 |
| 7302009 | Broadcast transmission with spatial spreading in a multi-antenna communication system An access point in a multi-antenna system broadcasts data using spatial spreading to randomize an “effective” channel observed by each user terminal for each block of data symbols broadcast by the access point. At the access point, data is coded, interleaved, an... | 11/27/2007 |
| 7298805 | Multi-antenna transmission for spatial division multiple access An uplink channel response matrix is obtained for each terminal and decomposed to obtain a steering vector used by the terminal to transmit on the uplink. An “effective” uplink channel response vector is formed for each terminal based on its steering vector and ... | 11/20/2007 |
| 7286846 | Systems and methods for performing outer loop power control in wireless communication systems Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic c... | 10/23/2007 |
| 7280625 | Derivation of eigenvectors for spatial processing in MIMO communication systems Techniques for deriving eigenvectors based on steered reference and used for spatial processing. A steered reference is a pilot transmission on one eigenmode of a MIMO channel per symbol period using a steering vector for that eigenmode. The steered reference is use... | 10/09/2007 |
| 7272176 | Communication receiver with an adaptive equalizer In a wireless communication system, a method for estimating a transmitted signal is disclosed. A wireless signal is received that includes a pilot channel and at least one other channel. A transmitted signal is estimated using an equalizer and the received wireless ... | 09/18/2007 |
| 7268610 | Low-voltage CMOS switch with novel clock boosting scheme A method and apparatus for boosting the gate voltages of a CMOS switch used in an integrated circuit designed in a sub-micron CMOS process is disclosed. The CMOS switch is coupled to Vin and Vout nodes, and contains PMOS and NMOS gates. Two boosting circuits are use... | 09/11/2007 |
| 7263385 | System and method for beamforming with data rate control feedback Systems and methods for adaptively forming a transmission beam to optimize data transmissions to one or more receivers (mobile stations). In one embodiment, a method comprises varying a transmission beam pattern by controlling a parameter such as the phase shift bet... | 08/28/2007 |
| 7263349 | Velocity responsive time tracking The velocity of a wireless communications device (WCD) is estimated. In response to this estimated velocity, a tracking speed of a filter is determined that corresponds to the estimated velocity. The filter filters a timing error signal to produce a control signal t... | 08/28/2007 |
| 7257377 | Systems and methods for improving channel estimation A method for improving channel estimation in a wireless communication system is disclosed. A wireless signal that includes a plurality of multipath components is received. N channel estimates are then obtained, where N is any positive integer greater than one. Each ... | 08/14/2007 |
| 7254394 | Method and system for a handoff in a broadcast communication system A method and system for a handoff in a broadcast communication system is disclosed. A subscriber assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the ot... | 08/07/2007 |
| 7251225 | Signal splitting method for limiting peak power in a CDMA system The invention is a method for limiting the peak transmit power in a CDMA communication system. At least one of first and second high transmit power regions are separated into a plurality of high transmit power subregions. The high transmit power subregions of the pl... | 07/31/2007 |
| 7248879 | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system Techniques to schedule downlink data transmission to a number of terminals in a wireless communication system. In one method, one or more sets of terminals are formed for possible data transmission, with each set including a unique combination of one or more termina... | 07/24/2007 |
| 7245598 | Feedback of channel quality information Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to improve the forward link data throughput. Over a channel quality ind... | 07/17/2007 |
| 7245594 | Method and apparatus for fast closed-loop rate adaptation in a high rate packet data transmission In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal t... | 07/17/2007 |
| 7239847 | Method and apparatus for adaptive server selection in a data communication system Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. Th... | 07/03/2007 |
| 7237007 | Method and system for flow control between a base station controller and a base transceiver station According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer wind... | 06/26/2007 |
| 7233794 | Method for robust handoff in wireless communication system A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintain... | 06/19/2007 |
| 7228148 | Methods and apparatus for power allocation on a reverse link power control channel of a communication system A method and apparatus that determines how much power to allocate to each of a plurality of reverse link power control (RLPC) Channels to be transmitted from a base station, based upon data rate control (DRC) messages transmitted to the base station. Historical info... | 06/05/2007 |
| 7215654 | Method and apparatus for high rate channel access control Access to a variable rate multiple access system is controlled based upon a current loading. The current loading level is used to determine a transmission rate set point. The transmission rate set point may include a maximum transmission rate and a transmission prob... | 05/08/2007 |
| 7212503 | Control-hold mode Methods and apparatus are presented for implementing an improved Control-Hold Mode that reduces the load of the reverse link and reduces the battery consumption of remote stations. While a remote station is in the improved Control-Hold Mode, the circuitry that monit... | 05/01/2007 |
| 7209712 | Mean square estimation of channel quality measure Methods and apparatus for improving the feedback of channel information to a serving base station, which provides accuracy and reliability of such information. The process determines the received link quality indicators using historical information of the previously... | 04/24/2007 |
| 7209517 | Method and apparatus for estimating a maximum rate of data and for estimating power required for transmission of data at a rate of data in a communication system Methods and apparatus for estimating maximum rate of data and for estimating a transmission power required for transmission of a data with a rate of data in a communication system are disclosed. A terminal determines a quality metric of a communication link, over wh... | 04/24/2007 |
| 7206598 | Method and apparatus for a control channel power allocation in a communication system An apparatus and a method for a control channel power allocation in a communication system are disclosed. The method of control channel power allocation in an embodiment includes sorting a plurality of access terminals in an order of increasing required medium acces... | 04/17/2007 |
| 7206580 | Method and apparatus for performing handoff in a high speed communication system A communication system including a closed loop power control system. Prior to allowing a handoff to a new base station, the subscriber station verifies that its reverse link signal is being received by the destination base station with sufficient energy. The determi... | 04/17/2007 |
| 7206298 | Conducting searches amidst asynchronous cells of a communication system Methods and apparatus are presented for scheduling asynchronous neighboring cells within a wireless communication system. The Neighbor Set is apportioned into a Synchronated Neighbor Set and an Asynchronous Neighbor Set. Rather than performing a full frame timing ac... | 04/17/2007 |
| 7202819 | Tapered multiband antenna Embodiments disclosed herein address the need in the art for a relatively small multi-band antenna. In one aspect, an antenna poise comprises an element, one edge of which is tapered from the connection point of a counterpoise to a second edge of the element. In ano... | 04/10/2007 |
| 7197017 | Method and apparatus for channel optimization during point-to-point protocol (PPP) session requests A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The me... | 03/27/2007 |
| 7193575 | Wideband antenna with transmission line elbow An antenna (100) includes overlapping conductive plates (102, 104) having a radiating end (112) and a feed end (114). The plates include partially overlapping edges (106) that flare away from each other as each edge progresses towa... | 03/20/2007 |
| 7191384 | Method and apparatus for transmitting and receiving a block of data in a communication system A method and apparatus for transmitting and receiving data provide for efficient use communication resources by encoding data in accordance with a first code to produce a block of data, determining transmission data rate of a time frame, selecting a portion of the b... | 03/13/2007 |
| 7190962 | Networked wireless communications device programmed to identify and eliminate probable multipath errors to enhance accuracy in correcting sleep clock for thermally induced errors A method for correcting operation of the sleep oscillator (116) of a wireless communications device (100). Sleep oscillator frequency is estimated (412) so as to compensate for estimated temperature induced errors. In estimating temperature indu... | 03/13/2007 |
| 7190749 | Method and apparatus for canceling pilot interference in a wireless communication system Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pi... | 03/13/2007 |
| 7190687 | Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The me... | 03/13/2007 |
| 7184789 | Method and apparatus for data packet transport in a wireless communication system using an internet protocol Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. A trigger recognized at the transmission node initiates a broadcast transmission, and the resultant set up of a transmission path. A termination trig... | 02/27/2007 |
| 7184463 | Method and apparatus for demodulating signals processed in a transmit diversity mode Demodulator architectures for processing a received signal in a wireless communications system. The demodulator includes a number of correlators coupled to a combiner. Each correlator typically receives and despreads input samples (which are generated from the recei... | 02/27/2007 |
| 7180879 | Method and apparatus for call setup latency reduction Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another as... | 02/20/2007 |
| 7177648 | Method and apparatus for selecting a serving sector in a data communication system Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. Th... | 02/13/2007 |
| 7177658 | Multi-media broadcast and multicast service (MBMS) in a wireless communications system Techniques to implement MBMS services in a wireless communication system. In one aspect, a method is provided for processing data for transmission to a plurality of terminals. Frames of information bits (which may have variable rates) are provided to a buffer implem... | 02/13/2007 |
