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| Number | Title | Issue Date |
| 7775883 | Video actuated interactive environment A surface-based interactive environment that utilizes low cost equipment to create a highly interactive environment for participants. The game can include electronic versions of traditional games, such as air hockey, football, soccer, and the like. The game can also... | 08/17/2010 |
| 7425175 | Match game program A game apparatus includes a CPU core. The CPU core firstly displays a field defined by a first side and a second side and shows a fixed block in the field. Then, the CPU core executes a player game process using the fixed block in response to a player's input operat... | 09/16/2008 |
| 7396281 | Participant interaction with entertainment in real and virtual environments A system of interaction between an electronic theme park experience and live theme park interaction and activity earns rewards. The interaction permits for rewards earned in the electronic theme park experience to be redeemed in the live theme park experience and vi... | 07/08/2008 |
| 7170925 | CDMA receiver In a CDMA receiver for applying despread processing to direct wave or delayed waves that arrive via each path of multiple paths, applying synchronous detection processing to the despread signals obtained, combining the detection signals of respective paths and discr... | 01/30/2007 |
| 7110444 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 09/19/2006 |
| 7099411 | Soft-output decoding method and apparatus for controlled intersymbol interference channels A method of reducing complexity in a Viterbi decoding algorithm used in intersymbol interference channels is provided. The method includes the steps of identifying a survivor path for an input symbol, making a hard decision about a polarity of the input symbol based... | 08/29/2006 |
| 7068742 | Method and apparatus for resolving multipath components for wireless location finding A method and apparatus that provides an accurate estimate of the time and amplitude of arrival of the first arriving overlapping multipath components (rays) in wireless locating finding systems. Overlapping fading multipath components for mobile-positioning are reso... | 06/27/2006 |
| 7050490 | Blind adaptive filtering method for receivers of communication systems A blind adaptive filtering method for receivers of communication systems without need of training sequences, and whose performance is close to that of the non-blind linear minimum mean square error (LMMSE) receivers with training sequences required in practical envi... | 05/23/2006 |
| 7046750 | Adaptive signal weighting system A system for decoding an electrical input signal includes a filter that impresses a variable gain on the portion of input signal to deemphasize a spectral region of the input signal. The variable gain is set as a function of a variable gain control signal. A frequen... | 05/16/2006 |
| 7027495 | Acquisition circuit for low chip rate option for mobile telecommunication system A User Equipment (UE) has a circuit that performs the acquisition for the low chip rate option of the Universal Mobile Telecommunication System (UMTS) Time Division Duplex (TDD) standard as formulated by the Third Generation Partnership Project (3GPP). The present i... | 04/11/2006 |
| 7027523 | Method and apparatus for transmitting data in a time division duplexed (TDD) communication system Techniques to process data for transmission in a time division duplexed (TDD) communication system. In one aspect, the frequency response of a forward link is estimated at a base station based on reverse link transmissions (e.g., pilots) from a terminal. Prior to a ... | 04/11/2006 |
| 7003051 | Time delay estimation in a transmitter In an embodiment, a transmitter section for a mobile device includes a predistorter for predistorting an input signal input to a modulation section. Predistortion values may be selected from a look-up table in response to a fed back signal from the output of the mod... | 02/21/2006 |
| 6980615 | Base station synchronization The present invention is a method for adjusting a timing of at least one first base station to maintain synchronization with a neighboring base station. An estimation of a timing accuracy associated with each said at least one first base station with respect to said... | 12/27/2005 |
| 6977973 | System and method for decoding manchester data A method for decoding Manchester data is provided that includes receiving input data comprising at least two transition types. Each transition of a specified transition type in the input data is detected. For each pair of consecutive transitions of the specified tra... | 12/20/2005 |
| 6977971 | Digital data transmission system with device for correcting baseline wander There is provided a digital data transmission system that includes a first unit transmitting a first MLT3 signal, a second unit receiving the first MLT3 signal, and transformers. The second unit includes an equalizer receiving the first MLT3 signal and outputting a ... | 12/20/2005 |
| 6975675 | Fast serial transmit equalization scheme A transmitting device to send an input signal in a channel includes an equalization system. The equalization system includes a decision subsystem to determine when adjustments need to be made based on the frequency of 0s or 1s in the input signal. The equalization s... | 12/13/2005 |
| 6970499 | Varying early-late spacing in a delay locked loop A rake receiver tracks a component of a multipath information signal transmitted over a communication network. The rake receiver aligns and synchronized the component with a locally generated replica of the code sequence that was originally used to spread the inform... | 11/29/2005 |
| 6970519 | Method and apparatus to enhance audio quality for digitized voice transmitted over a channel employing frequency diversity Apparatus and corresponding method in a wireless mobile device (10) for classifying each of a plurality of audio bits obtained from a vocoder (104) into one class of a plurality of classes according to a predetermined importance of each audio bit, wher... | 11/29/2005 |
| 6970517 | Information transmission system for transmitting information among terminals different in modulation/demodulation techniques and method used therein An information transmission system is broken down into a sound recorder, a transmission medium and a sound reproducer; a digital audio signal is produced from MIDI music data words through any kind of modulation technique such as, for example, Y-modulation technique... | 11/29/2005 |
| 6970528 | Method and apparatus to measure jitter A method of determining jitter is provided by providing a sample, performing an unwrap of the data and then performing a Fast Fourier Transform (FFT) of the data. The fundamental is filtered out and an inverst FFT is determined. The sparkle code is taken out and the... | 11/29/2005 |
| 6970496 | RF modem and communications transceiver utilizing saw device and pulse shaping A bidirectional direct sequence spread spectrum half-duplex RF modem that can be applied to transmit and receive numerous types of analog and digital pulse modulation. The modem incorporates a SAW based correlator for performing the spreading and de-spreading functi... | 11/29/2005 |
| 6970524 | Methods and systems for symbol timing recovery The present invention provides methods and systems that generate symbol delay times. By receiving a communication signal using a plurality of antennas, a set of respective communication channels can be characterized. The characterized channels can be then used to de... | 11/29/2005 |
| 6970511 | Interpolator, a resampler employing the interpolator and method of interpolating a signal associated therewith An interpolator, method of interpolating a one-bit signal and resampler employing the interpolator and method. The interpolator employs a cascaded architecture to interpolate a one-bit input signal received at an input thereof. In one embodiment, the interpolator in... | 11/29/2005 |
| 6967996 | System and method for optimizing digital subscriber line performance between transceivers from multiple manufacturers An improved ADSL modem is presented. The ADSL modem in cooperation with a remote ADSL modem will exchange manufacturer identification information during initial DSL system training to establish a DSL communication link. The improved ADSL modem may comprise a memory ... | 11/22/2005 |
| 6961398 | Base station synchronization for wireless communication systems The present invention is a system and method for time synchronizing a plurality of base stations in a wireless communication system. The system determines an estimate of a timing accuracy associated with each base station. When a base stations's timing accuracy is o... | 11/01/2005 |
| 6959062 | Variable delay line A variable delay line includes a shift register responsive to coarse adjustment control and a fine adjustment control. The variable delay line can be used in a delay lock loop within an integrated circuit. The variable delay line receives coarse and fine adjustment ... | 10/25/2005 |
| 6956906 | Powerline data communication Data communication between two devices (11, 12) over the public powerline network (13) uses a multi carrier technology wherein a communication channel is divided into a plurality of subchannels by frequency division multiplexing. A partial power as par... | 10/18/2005 |
| 6937649 | Ghost eliminating equalizer An equalizer substantially eliminates a ghost of a received main signal by (i) applying coefficients b (where b may be equal to one) to the received main signal and the ghost in order to modulate the received main signal and the ghost so that the received main signa... | 08/30/2005 |
| 6928103 | Rach receiving apparatus The present invention provides an RACH receiving apparatus in which the components can be constructed in a small scale. The RACH receiving apparatus performs a demodulation processing so as to divide it into two stages of a first demodulation processing for m... | 08/09/2005 |
| 6922444 | System and method for providing adaptive rate selection A system and method for providing adaptive rate selection mitigates impulse-like noise and allows for interleaving and RS coding, while not excessively delaying data transmission. Generally, the system utilizes a memory and a processor, wherein the processor is prog... | 07/26/2005 |
| 6912241 | Chip-interleaved, block-spread multi-user communication Techniques are described for maintaining the orthogonality of user waveforms in multi-user wireless communication systems, such as systems using the code division multiple access (CDMA) modulation scheme in the presence of frequency-selective fading channels. Unlike... | 06/28/2005 |
| 6898253 | Method and apparatus for an accurate slicer that can rapidly adjust to an offset A method that calculates a threshold for a signal according to a first bandwidth if the signal is greater than the threshold plus a first value or if the signal is less than the threshold minus the first value. The method also calculates the threshold for the signal... | 05/24/2005 |
| 6865223 | Equalizer adapter for a pulse amplitude modulation receiver A receiver has an equalizer with plural equalization settings, which compensates for distortion in a received signal, and an adapter for selecting one of those settings which optimally compensates for the distortion. The adapter employs a trial and error procedure f... | 03/08/2005 |
| 6865230 | Filter system with reduced switch thermal noise and a ΣΔ modulator using such a filter A filter system with reduced switch thermal noise includes an input circuit for receiving an input signal and a feedback signal and providing a signal representative of the difference; a filter circuit including at least an input sampling capacitor and switch which ... | 03/08/2005 |
| 6859503 | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel The present invention makes it possible to increase a data rate between a transmitter and receiver using a multiple-input, multiple-output radio frequency channel. A multiple-stream, multiple-antenna receiver measures a composite channel between a multiple-antenna t... | 02/22/2005 |
| 6856656 | Iterative carrier phase tracking decoding system An iterative system for performing carrier phase tracking of symbols using a serial turbo decoder. Estimates of a buffered block of symbols are provided by a serial turbo decoder. Optionally, reliability metrics for the estimates are provided as well. Responsive to ... | 02/15/2005 |
| 6853681 | Using different channel models for different training sequences In a digital telecommunication receiver, one or more of a synchronization technique, a channel model, a channel estimation technique, and/or an equalization technique are selected in order to optimize the training sequence being used and eliminate distortions introd... | 02/08/2005 |
| 6847693 | Method and device providing data derived timing recovery for multicarrier communications A method and a device for providing timing recovery in a multicarrier transmission system is provided. The data derived timing recovery apparatus with the timing error controller adjusts the sampling rate at the receiver. The data derived timing recovery apparatus u... | 01/25/2005 |
| 6839393 | Apparatus and method for controlling a master/slave system via master device synchronization A method of operating a master/slave system includes the step of identifying a master receive data phase value to coordinate the transfer of data from a slave device without phase alignment circuitry to a master device with a universal phase aligner. Data is transfe... | 01/04/2005 |
| 6834090 | Low delay decoding A method and apparatus for decoding a frame of interleaved information bits in a communications system, where the decoding of the frame of interleaved information bits may begin before all of the bits in the frame are received at a decoding site. The frame of interl... | 12/21/2004 |
