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 |
| 8107411 | Mobile station capable of and a method for generating chip patterns for transmission A mobile station for wirelessly transmitting to a base station by DS-CDMA a signal which is spread by multiplying a spreading code includes a high-precision transmission timing control unit configured to control transmitting timings of transmitting signals so that a... | 01/31/2012 |
| 8108438 | Finite harmonic oscillator A dictionary at least partially spans a set of discrete q-length signals. The atoms of the dictionary are eigenvectors of a representation of a commutative subgroup of a finite symplectic group. The dictionary may be used for interpreting a radar signal, denoising a... | 01/31/2012 |
| 8085705 | Web mobile systems A mobile device generated video and camera signal is processed into cross-correlated Code Division Multiple Access (CDMA), Gaussian Minimum Shift Keying (GMSK) signal used in Time Division Multiple Access (TDMA) systems such as the Global Mobile System (GSM), and in... | 12/27/2011 |
| 8085704 | Method and arrangements relating to satellite-based positioning The present invention relates to methods and apparatuses as well as a measurement report signal for reporting measurements on ranging signals (RS1-RS4) received by a mobile station from satellites (SV1-SV4) or calculating a position based... | 12/27/2011 |
| 8072919 | Trunking system for CDMA wireless communication Methods and systems for implementing trunking techniques in CDMA systems for handling group calls and push-to-talk services. ... | 12/06/2011 |
| 8031650 | System and method for monitoring remote devices with a dual-mode wireless communication protocol The present invention is generally directed to systems and device for monitoring remote device with a wireless, dual-mode communication protocol. As such, a representative embodiment is a system for monitoring and controlling remote devices. The system includes a fi... | 10/04/2011 |
| 8018891 | Automatic configuration of virtual network switches In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. ... | 09/13/2011 |
| 8009607 | Method and apparatus for uplink transmission timing in a mobile communications system A radio network provides centralized load control in order to control uplink interference in a cell while at the same time permitting adaptation to fast channel variations. The radio network sends to a mobile terminal a percentage of time that the mobile terminal ma... | 08/30/2011 |
| 8005036 | Apparatus and method for scheduling for collaborative spatial multiplexing in a broadband wireless communication system Provided is an apparatus and method for scheduling for collaborative spatial multiplexing in a broadband wireless communication system. An apparatus for a base station for supporting collaborative spatial multiplexing in a broadband wireless communication system inc... | 08/23/2011 |
| 7986654 | Methods, computer program products and apparatus providing low complexity determination of cross-correlations The exemplary embodiments of the invention provide methods, computer program products and apparatus for determining cross-correlations between the received signals in a set of users. An exemplary method includes: receiving an input signal comprising a plurality of u... | 07/26/2011 |
| 7983208 | MMSE channel estimation in a communications receiver Methods and apparatus are disclosed for calculating a channel response for use in received signal processing. In an exemplary embodiment, a method comprises calculating a channel response correlation matrix based on measured channel responses derived from pilot symb... | 07/19/2011 |
| 7903600 | Control of CDMA signal integration A method for controlling integration for a CDMA signal and a receiver implementing the same. In accordance with the present invention, non-coherent and even coherent integration periods for a received signal are dynamically and adaptively controlled depending upon t... | 03/08/2011 |
| 7894380 | Terminal power control method A power control method for a terminal, including: obtaining, by the terminal, a quality parameter of a received signal, a receiving power of a code channel occupied by the terminal and a power of code channels in a cell having the same carrier frequency and the same... | 02/22/2011 |
| 7881249 | Method and apparatus for determining repeater use in wireless communications A method and apparatus for determining whether a received signal is transmitted via a repeater is described. A source signal to be conveyed via a particular repeater may include, or be modified to include, a variety of signal characteristics having a predictable rel... | 02/01/2011 |
| 7852799 | Network using randomized time division duplexing A network node may have a transmitter, a receiver and a controller. The controller may be configured to automatically and repeatedly cause the network node to cycle back and forth between transmitting information on a network with the transmitter and receiving infor... | 12/14/2010 |
| 7787412 | Uplink scheduling A method of obtaining a relative indicator for use in scheduling uplink transmissions from a plurality of source user equipments to a base station is disclosed. The relative indicator indicates the status of a user equipment in comparison to the status of the other ... | 08/31/2010 |
| 7782811 | Multiple return link A system and method for improving efficiency of satellite communications is described. In one embodiment, multiple return links are associated with a single forward link to reduce communications costs. ... | 08/24/2010 |
| 7729303 | Global open trunking system for CDMA wireless communication Methods and systems for implementing trunking techniques in CDMA systems for handling group calls and push-to-talk services and roaming of group calls. ... | 06/01/2010 |
| 7710909 | Asymmetrical forward/reverse transmission bandwidth A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requi... | 05/04/2010 |
| 7706317 | Spread-spectrum communication method and apparatus The communication period of spread spectrum data is divided into a plurality of portions, and an adjustment period for receiving the spread spectrum data is provided between one data-communication period and another communication period. Thereby, the setting of a re... | 04/27/2010 |
| 7706316 | Processing an incoming packet of unknown protocol by encapsulating the packet and sending it to another processor One or more network routers include data path processors and a control path processor. A number of network protocols that are not installed on the data path processors are installed on the control path processor. When one of the data path processors receives a netwo... | 04/27/2010 |
| 7697466 | Base station apparatus, mobile station apparatus, radio communication system, and radio communication method At a base station apparatus, known pilot signals for use in channel estimation are transmitted, and in addition thereto MCS pilot signals that are used to perform adaptive modulations respectively corresponding to a plurality of modulation schemes are multiplexed an... | 04/13/2010 |
| 7688773 | Method of transmitting and receiving a signal in an MC-CDMA system A method of transmitting a signal formed from data symbols over a wireless communication link in a multi carrier code division multiple access communication system, in which the data symbols are spread over multiple sub-carriers in accordance with a code of predeter... | 03/30/2010 |
| 7672265 | Method for physical layer automatic repeat request for a base station A physical automatic repeat request method implemented by a base station having a transmitter and a receiver. A physical layer, at the transmitter receives data and formats the received data into packets having a particular encoding/data modulation. The physical lay... | 03/02/2010 |
| 7620005 | Method and apparatus for code assignment in a spread spectrum wireless communication system Method and apparatus for code assignments in a spread-spectrum wireless communication system incorporating a Large Area Synchronized-Code Division Multiple Access (LAS-CDMA) protocol. The method determines a set of LS codes based on an interference free window size.... | 11/17/2009 |
| 7599321 | Prioritization of connection identifiers for an uplink scheduler in a broadband wireless access communication system An uplink access method in a mobile subscriber station of a broadband wireless access communication system prioritizes uplink bandwidth allocation according to QoS types of requested service. A scheduling priority is assigned to each type of service flow to guarante... | 10/06/2009 |
| 7596113 | Transmission scheduling for TDMA networks A technique for scheduling transmissions for a plurality of transmitters in a TDMA network is described. The technique includes assigning guard time between each pair of successive transmitters, where the guard time is related to the propagation delay between the pa... | 09/29/2009 |
| 7590083 | Wireless packet data distributed communications system A two-way satellite communications system includes an Earth station communicating with a plurality of remote terminals using a network access protocol that facilitates low power consumption by the terminals. The earth station generates forward link TDM packet data t... | 09/15/2009 |
| 7586866 | Radio communication apparatus and radio transmission method In order to improve reception performance, while reducing the arithmetic amount of a receiver apparatus in a multi-carrier CDMA system, different weightings are performed for the respective spread codes (chips) included in subcarriers in addition to performing weigh... | 09/08/2009 |
| 7583627 | Low latency radio basedband interface protocol A low latency radio/baseband interface protocol is provided. In one embodiment thereof, 8b/10b encoding is used, which has distinct control characters and data characters. Control characters are used to define the beginning of a frame. More particularly, in accordan... | 09/01/2009 |
| 7577115 | Apparatus and method for acquiring code group in asynchronous W-CDMA system Provided are an apparatus and a method for acquiring a code group that is used for a mobile communication terminal to acquire a scrambling code for identification of a base station. The present invention compares a part of slot values in code groups of the secondary... | 08/18/2009 |
| 7535864 | Radio communication terminal apparatus and radio communication base station apparatus A CDMA radio receiving apparatus which receives a slot which has a long code group identification short code at a point where a long code is masked. The apparatus includes a detector that detects a phase of the long code in association with a pattern that appears ov... | 05/19/2009 |
| 7522550 | Automatic control apparatus and method for TD-SCDMA mobile terminal The automatic control system of a mobile terminal for time division duplex (TDD) based communication system includes an RF processing module which controls quality of a transmission channel, and a baseband modem connected to the RF processing module through a transm... | 04/21/2009 |
| 7519018 | Method for physical layer automatic repeat request for a subscriber unit A method for physical automatic repeat request by a subscriber unit. A physical layer at the transmitter receives data and formats the received data into packets having a particular encoding/data modulation. The physical layer contains n channels which transmit the ... | 04/14/2009 |
| 7515558 | Code division multiple access communication system, and a base station control device and a base station thereof Power control of a base station of a CDMA system that includes a plurality of communication terminals and a maintenance terminal is optimized by adjusting one of transmitted power and received power of the base station, based on power distribution values of radio ch... | 04/07/2009 |
| 7505427 | Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system For use in a multi-carrier CDMA receiver, a noise reduction circuit for improving a signal-to-noise ratio of a multi-carrier signal corresponding to a predetermined sequence of chips. Each chip has a value of Logic 0 or Logic 1. The noise reduction circuit comprises... | 03/17/2009 |
| 7499420 | Apparatus and method for removing signal interference in a local radio communication device mounted in a mobile terminal Disclosed is a method for removing signal interference in a local radio communication device mounted in a mobile terminal. The method comprises receiving information on a channel in use from the mobile terminal in session; determining based on the received channel i... | 03/03/2009 |
| 7453837 | Trunking system for CDMA wireless communication Methods and systems for implementing trunking techniques in CDMA systems for handling group calls and push-to-talk services. ... | 11/18/2008 |
| 7444157 | Method and apparatus for beam selection in a smart antenna system A method of beam selection in a smart antenna system is provided. The method includes receiving a plurality of uplink beams by a plurality of receivers, each corresponding with one of the plurality of uplink beams. Each uplink beam includes signals transmitted by a ... | 10/28/2008 |
| 7436878 | Method and apparatus for efficient carrier bin search for a composite spreading code A matched filter decorrelator is described for efficiently performing a carrier frequency search while despreading a P/N long code constructed from two or more constituent codes such as codes A, B, C. The received signal is phase rotated into a frequency bin and par... | 10/14/2008 |
