Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7388899 | Spreading code structure for ultra wide band communications The ultra wide band communication system of the present invention includes a transmitter (station) and a receiver (station). The transmitter and the receiver employ spreading code comprised of code groups, which respectively comprise varied, auto-correlated codes. C... | 06/17/2008 |
| 7386035 | Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same Provided is a method of compensating for energy loss and eliminating inter-symbol interference (ISI) and inter-chip interference (ISI) in wireless signals, and a rake receiver for wireless LANs adopting the same. The rake receiver compensates for energy loss of a CC... | 06/10/2008 |
| 7356094 | Digital broadcast receiving apparatus A digital broadcast receiving apparatus for receiving a broadcast signal generated by combining sub signals modulated using a random sequence generated based on an initial value set in accordance with a frequency of a broadcast channel by a signal transmission contr... | 04/08/2008 |
| 7349498 | Method and system for data and edge detection with correlation tables A system and method is disclosed for evaluating a data group of oversampled bits to detect edge transitions and for improving use of information available from a sampled data while maintaining acceptable noise rejection. An edge detection system for receiving a seri... | 03/25/2008 |
| 7327780 | Wireless communications systems and methods for multiple operating system multiple user detection The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection ... | 02/05/2008 |
| 7324800 | Wake-up system with passive correlators Disclosed is a wake-up system with passive correlators, adopted to wireless transmission/reception devices such as remote controllers, mobile communication terminals, etc. The wake-up system includes a transmitter and receiver. In the transmitter wake-up signals and... | 01/29/2008 |
| 7274729 | Spread spectrum communication device and communication system A structure of a spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc., and limits the rise of the side-lobe of a correctional signal independently of the order of information... | 09/25/2007 |
| 7269207 | Method of symbol index selection in code division multiple access A method and device for estimating a target chip index value in a code-division multiple access receiver. The receiver receives signals from a transmitter that uses a plurality of transmitted chips for data transmission through a plurality of multipath channels. As ... | 09/11/2007 |
| 7158763 | Multi-IDT SAW hybrid communication system A SAW communication device has a main IDT mounted on an SAW substrate to receive an RF signal received by an antenna and convert the RF signal to an acoustic wave which travels along the SAW substrate in opposite directions from the main IDT. At least two secondary ... | 01/02/2007 |
| 7145937 | GMSK spread modulation Spread spectrum GMSK signals are presented. Transmission may involve obtaining a sequence of data symbols, obtaining a spread spectrum code comprising a sequence of spread spectrum chips, generating a sequence of pre-modulation chips by combining the sequence of dat... | 12/05/2006 |
| 7099373 | Noise shaping technique for spread spectrum communications A spread spectrum noise shaper uses a modulation technique to achieve a greater signal-to-noise or signal-to-interference ratio (SNR or SIR). The technique doubles the system SIR, in principle. This doubling yields a doubling in system capacity. SNR is increased by ... | 08/29/2006 |
| 7090724 | Langasite single crystal ingot, substrate for piezoelectric device and method for manufacture thereof, and surface acoustic wave device The contents by weight ratio of lanthanum oxide, gallium oxide, and silicon oxide, which are components, in the longitudinal cross-section and transverse cross-section of the straight part, excluding the shoulder part, of a Langasite single crystal ingot grown by pu... | 08/15/2006 |
| 7046682 | Network-enabled, extensible metering system To allow meter data users to have access to needed information and at the same time address the rapidly shifting requirements of the deregulated marketplace, a new business model, apparatus and system are provided. A common metering device measures raw data and a sy... | 05/16/2006 |
| 7010022 | Spread spectrum receiver The spread spectrum receiver employs circuits based on direct conversion techniques. These circuits enable realization of spread spectrum receivers of greatly reduced complexity and of much higher chip rates that can be implemented with the standard approach of a fu... | 03/07/2006 |
| 6990138 | Correlated spreading sequences for high rate non-coherent communication systems The invention relates notably to a method for modulating information symbols to be transmitted in a CDMA communication network by using a non-orthogonal modulation code comprising M spreading sequences (sm 1≦m≦M), each comprising in N chips (sm,n... | 01/24/2006 |
| 6975659 | Laser diode array, laser device, wave-coupling laser source, and exposure device A plurality of multi-cavity laser diode chips, each having a plurality of light emitting points, are fixed side by side and form a laser diode array. ... | 12/13/2005 |
| 6919802 | Multi-layer method of accommodating code collisions from multiple surface acoustic wave identification tags A method of accommodating code collisions from multiple SAW identification tag coded response pulses. In one embodiment, the method includes: (1) separating probable candidates by time-domain; (2) classifying the probable candidates by code-division separation; (3) ... | 07/19/2005 |
| 6904107 | Space-weighted communication path estimation A method of estimating a communication path formed of a plurality of channels, the method necessitating an estimate of the impulse response C1, C2, . . . , Cn of the channels, including the following steps of (1) acquiring a space st... | 06/07/2005 |
| 6847676 | All-lag spread-spectrum correlators with rotating references An all-lag rotating-reference correlator correlates a received spread-spectrum signal with a rotating reference code, and produces in each sampling instance N correlation lags corresponding to the correlation of the received signal with 0, 1, . . . , N−1 lags (or ... | 01/25/2005 |
| 6825794 | Wireless communication system using surface acoustic wave (SAW) second harmonic techniques SAW devices such as interdigital transducers (IDTs) have been widely used in RADAR applications and as filters. An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autocorrelation ... | 11/30/2004 |
| 6775318 | Method and apparatus for code group identification and frame synchronization in DS/CDMA systems The present invention provides an apparatus and method for code group identification and frame synchronization for cell searching used in wide-band DS-CDMA cellular systems. This method characterizes each secondary synchronization code sequence (SSCS) with a corresp... | 08/10/2004 |
| 6697418 | Spread spectrum communication device and communication system It is the object of the invention to provide a structure of a novel spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc. and limits the rise of the side-lobe of a ... | 02/24/2004 |
| 6462698 | Wireless communication system using surface acoustic wave (SAW) single-phase unidirectional transducer (SPUDT) techniques SAW devices such as interdigital transducers (IDTs) have been widely used in RADAR applications and as filters. An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autoc... | 10/08/2002 |
| 6226319 | Spread spectrum demodulation circuit, spread spectrum communication apparatus, delay-detection-type demodulation circuit, and delay-detection-type communication apparatus A spread spectrum demodulation circuit includes a correlation signal generator which generates a correlation signal from a reception signal to which a quadrature phase shift keying and a spread spectrum modulation are performed. First and second delay ele... | 05/01/2001 |
| 6134264 | Spread spectrum communication device and communication system It is the object of the invention to provide a structure of a novel spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc. and limits the rise of the side-lobe of a ... | 10/17/2000 |
| 6014373 | Spread spectrum CDMA subtractive interference canceler system A spread-spectrum code division multiple access interference canceler for reducing interference in a direct sequence CDMA receiver having N chip-code channels. The interference canceler includes a plurality of correlators or matched filters, a plurality o... | 01/11/2000 |
| 5909461 | Spread spectrum communication apparatus and demodulator surface acoustic wave element and surface acoustic wave parts for spread spectrum communication A spread spectrum communication apparatus includes at least one surface acoustic wave matched filter, a plurality of surface acoustic wave delay lines having different delay amounts, and integrating circuits for integrating an output signal of the surface... | 06/01/1999 |
| 5784403 | Spread spectrum correlation using saw device A technique is provided using a SAW device for correlating to a plurality of different chip code sequences, such as M different chip code sequences, using fewer than M individual SAW correlators. A received signal is provided to a SAW correlator capable o... | 07/21/1998 |
| 5488662 | System and method for identifying an arrival time of a communicated signal A transmitter (12) broadcasts a PN encoded message (16). A receiver (14) includes a SAW correlator (38) configured to autocorrelate with the PN sequence used in the broadcast signal. A preamble of the message (16) conveys two successive bits (18) that are... | 01/30/1996 |
| 5483549 | Receiver having for charge-coupled-device based receiver signal processing This invention relates to a novel receiver architecture, the Charge-Coupled-Device Integrated Receiver (IR), which simplifies electronic circuitry requirements and reduce baseband processing rates through efficient signal processing. The focus of this rec... | 01/09/1996 |
| 5454005 | Reciprocal mode saw correlator method and apparatus A surface-acoustic-wave correlator for decoding a spread-spectrum signal having a data signal modulated with a plurality of chip sequences and reciprocal-chip sequences. A tapped-delay-line has a plurality of taps defining a tapped-delay-line structure ma... | 09/26/1995 |
| 5434893 | Component for a differential transmitter-receiver of signals with direct sequence spread spectrum and the corresponding transmitter-receiver The component essentially comprises two correlators (TR1, F1), (TR2, F2) shifted by one period or cycle from the information element. This component fulfils both the correlation and delay functions. The component also comprises a transmission channel with... | 07/18/1995 |
| 5355389 | Reciprocal mode saw correlator method and apparatus A surface-acoustic-wave correlator for decoding a spread-spectrum signal having a data signal modulated with a plurality of chip sequences and reciprocal-chip sequences. A tapped-delay-line has a plurality of taps defining a tapped-delay-line structure ma... | 10/11/1994 |
| 5353304 | Surface acoustic wave device, and demodulating apparatus and communication system using the surface acoustic wave device In a surface acoustic wave device, there are arranged a piezoelectric substrate, an input electrode and an output electrode. The input electrode is formed on the substrate, and generates a surface acoustic wave propagated in a predetermined direction, in ... | 10/04/1994 |
| 5280499 | Spread spectrum communication system A spread spectrum communication system includes a transmitter having: a data generator for generating a data signal; a pn generator for generating a first pn signal in accordance with a pn code clock; a modulator for modulating the pn code clock by synchr... | 01/18/1994 |
| 5278864 | Spread spectrum communication device A spread spectrum communication device according to the present invention includes a transmitter and a receiver, and suppresses demodulation errors to a minimum value, even if there exit a plurality of narrow band disturbing signals. In the transmitter, a... | 01/11/1994 |
| 5276705 | CCD demodulator/correlator A charge-coupled device (CCD) used as a demodulator and a correlator in the receiver of a spread spectrum radio system. The device implements both functions in the charge domain, thereby avoiding unnecessary conversions between voltage and charge that wou... | 01/04/1994 |
| 5276704 | SAWC phase detection method and apparatus A phase coded surface-acoustic-wave-correlator device used with a spread spectrum receiver. The spread spectrum receiver receives a spread spectrum signal which has a carrier signal with a phase modulated by a data-bit sequence and by a chip sequence. The... | 01/04/1994 |
| 5272721 | Spread spectrum receiving device A spread spectrum receiving device using a correlator in an IF stage of the receiving device is disclosed, which is so constructed that interference wave or disturbing wave is removed by subjecting the interference wave or the disturbing wave and a desire... | 12/21/1993 |
| 5262977 | Surface acoustic wave convolver A convolver has a piezoelectric film layer, an insulator layer and a semi-conductor layer. A surface resistance measurement part permits measurement of a surface resistance related to the surface resistance seen by a gate electrode of the convolver. The s... | 11/16/1993 |
