An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7120210 | Method and system for processing a signal A clipped metric function is utilized to mitigate the adverse effects of impulsive noise (e.g., lightening, motor vehicle ignition noise) on communications signals. The clipped metric function may be used alone or in conjunction with conventional signal clipping. In... | 10/10/2006 |
| 7119607 | Apparatus and method for resonance reduction A system is provided that includes a power distribution network to provide a switching current and a resonance reduction circuit to sense the switching current within a frequency range and to generate a resonance reduction signal having a current component at substa... | 10/10/2006 |
| 7119727 | Analog-to-digital converter A system and method for implementing an analog-to-digital converter (ADC). The ADC includes a converter for generating a timed pulse based on an analog signal and a control signal. The ADC also includes a timing analyzer for generating a digital signal based on the ... | 10/10/2006 |
| 7120208 | Device and method for adjusting input gain for multiple signal formats in a data network A network receiver is configured for receiving a modulated carrier signal from another network transceiver via a network medium, the modulated carrier signal may be either a pulse position modulated (PPM) carrier or a quadrature amplitude modulated (QAM) carrier. Th... | 10/10/2006 |
| 7120415 | Radio receiver A radio receiver is configurable to operate in both low-IF and zero-IF modes with maximum re-use of of analogue and digital circuitry between modes. The receiver comprises a quadrature down-converter (108,110,112,114) for generating in-phase (I) and quadratur... | 10/10/2006 |
| 7116963 | Simplified high frequency tuner and tuning method A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the chan... | 10/03/2006 |
| 7116964 | Signal reception and processing method for cordless communications systems Channel selection of a received signal is first of all carried out, in the process, by way of an analog channel selection filter. The signal is then converted to a digital discrete-time and discrete-value signal. Finally, the continuous-time and continuous-value sig... | 10/03/2006 |
| 7116729 | Trimming of local oscillation in an integrated circuit radio A method and apparatus for trimming of a local oscillation within a radio frequency integrated circuit (RFIC) includes processing that begins when an RFIC receives a radio frequency (RF) signal having a known frequency. The processing then continues when the RFIC mi... | 10/03/2006 |
| 7116730 | Demodulation apparatus A demodulation apparatus includes an A/D converter for sampling and quantizing a baseband signal, and a demultiplexer for multiple-separating output signals of the A/D converter into two outputs. A first branch unit splits one of the two outputs of the demultiplexer... | 10/03/2006 |
| 7116728 | Quadrature alignment in communications receivers using dual delay lines The present invention, generally speaking, takes advantage of the properties of quadrature signals to achieve precise quadrature alignment in a simple fashion. In particular, the expectation of the product of quadrature signals is zero. In accordance with the teachi... | 10/03/2006 |
| 7116742 | Timing recovery system for a multi-pair gigabit transceiver A method and a timing recovery system for generating a set of clock signals in a system which includes a set of subsystems. Each of the subsystems includes an analog section. The set of clock signals includes a set of sampling clock signals. Each of the analog secti... | 10/03/2006 |
| 7116953 | Local oscillator using I/Q mismatch compensating circuit through LO path receiver using thereof A local oscillator provides an in-phase local oscillating signal and quadrature-phase signal to first and second mixers outputting an input signal with a mixed in-phase local oscillating signal and quadrature-phase local oscillating signal, respectively. The oscilla... | 10/03/2006 |
| 7116961 | Image rejection quadratic filter An image rejection quadratic filter is tunable to filter image frequencies over a wide band. In one embodiment, the image rejection filter includes in-phase and quadrature phase mixers. The image rejection has a fractional transfer function. The image rejection filt... | 10/03/2006 |
| 7113552 | Phase sampling techniques using amplitude bits for digital receivers The present invention uses at least one amplitude bit to assist the phase-sampling technique used in digital receiver architectures. For digital receivers where the Intermediate Frequency (IF) is an integer multiple of the fundamental frequency fo, the pr... | 09/26/2006 |
| 7110476 | Demodulation and modulation circuit and demodulation and modulation method A demodulation circuit and a demodulation method can optimize sampling timing with achieving reduction of power consumption. A preliminarily known signal is inserted in the digital transmission signal upon transmission. The demodulation circuit includes A/D converti... | 09/19/2006 |
| 7110472 | Transmission method, transmitter and receiver A receiver for generating a transmission symbol stream by applying predetermined modulation processing to an encoded bit series obtained by encoding an information bit series having a predetermined transmission rate. The receiver generates a transmission-information... | 09/19/2006 |
| 7110448 | ZF-based adaptive asynchronous receiver The invention concerns an asynchronous receiver for digital transmission and recording systems. The receiver comprises a sampling rate converter (SRC) for timing recovery, preceded by a digital adaptive equalizer operating at the sampling rate 1/Ts, asynchronous to ... | 09/19/2006 |
| 7110474 | Method for determining a boundary of an information element, a system, and an electronic device A method for determining a boundary of an information element, in which a repetition coded signal transmitted by satellites is received, which signal is modulated with information elements. A group of symbols forms one information element. A group of reference value... | 09/19/2006 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 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 |
| 7109787 | High-efficiency circuit for demodulating carriers in quadrature A demodulation circuit for demodulating a received signal including carriers in quadrature modulated by digital signals and/or in which the processing is performed on two carriers in quadrature. The circuit includes a demodulator, an analog-to-digital converter, a c... | 09/19/2006 |
| 7107036 | Demodulator architecture and associated methods Embodiments of a frequency modulated (FM) demodulator and associated methods are generally described. According to but one example embodiment, an apparatus is disclosed comprising a receiver front-end, to receive a signal from one or more antenna(e) and generate qua... | 09/12/2006 |
| 7103110 | Dual phase pulse modulation encoder circuit An dual phase pulse modulation (DPPM) encoder circuit converts data into a series of high and low signal pulses, each of whose time durations or pulse widths represents a group of M data bits, with the alternating high and low pulses representing successive groups. ... | 09/05/2006 |
| 7103118 | Vectorial combiner for diversity reception in RF tranceivers A combiner for use in a diversity radio receiver (FM) which receives a plurality of diversity I and Q modulated signals each carrying I and Q information signals through spatially separated antennas, the received I and Q signal pairs being digitized at a sampling ra... | 09/05/2006 |
| 7103332 | Apparatus and method for compensating for frequency offset in a mobile communication system An apparatus and method for compensating for the frequency offset of a received signal in a receiving apparatus of a mobile communication system. In the present invention, a sine component is calculated by adding I and Q channel signals resulting from downconverting... | 09/05/2006 |
| 7102465 | Frequency discrete LC filter bank An inductive (“L”)-capacitive (“C”) filter bank has application for use in a television receiver. The LC filter includes inductors configured in at least one inductive (“L”) bank, and capacitors configured in at least one capacitive (“C”) bank. The i... | 09/05/2006 |
| 7103098 | Adaptive receiver for multiplex/multi-access communications A received communication signal in which input data has been differentially encoded using a number of nominal symbols is filtered according to variable filter coefficients. A symbol is predicted based on the filtered signal, as if the input data had been encoded non... | 09/05/2006 |
| 7099630 | Beam forming method A radio communications system has subscriber stations and a base station that is provided with an antenna system with a plurality of antenna elements that emit a downlink signal in a weighted manner with coefficients of a weighting vector. In order to form a beam, a... | 08/29/2006 |
| 7098828 | Complex band-pass ΔΣ AD modulator for use in AD converter circuit A complex band-pass ΔΣ AD modulator is provided with a subtracter device, a complex band-pass filter, first and second AD converters, and first and second DA converters. The first and second DA converters and first and second logic circuits are sandwiched by first... | 08/29/2006 |
| 7096041 | Beam forming method In a radio communication system, a beam is formed between subscriber stations and a base station which has an antenna device with several antenna elements. The antenna elements emit a downlink signal based on respective weighing with coefficients of a weighting vect... | 08/22/2006 |
| 7095801 | Phase adjustable polyphase filters A polyphase filter for wireless communication systems includes at least two phase splitting filters each having a variable resistance across their respective outputs. The variable resistance can take any suitable form, such as a MOS transistor biased in the linear (... | 08/22/2006 |
| 7095804 | Method and apparatus for spread spectrum radio signal recovery in wideband spread spectrum communication systems Systems and methods to recover spread spectrum radio signals are provided. A representative system includes an antenna, a radio frequency subsystem, a baseband subsystem, and at least one peripheral device. The radio frequency subsystem is coupled to the antenna and... | 08/22/2006 |
| 7095809 | Practical M-ary demodulator using hard decision circuit and method of operation for use in a CDMA wireless network base station A demodulator for demodulating S possible orthogonal modulation codes received serially as binary data, wherein each of the S possible orthogonal modulation codes comprises M binary bits representing an N-bit data symbol and wherein M=2N. The demodulator ... | 08/22/2006 |
| 7095810 | Practical M-ary demodulator and method of operation for use in a CDMA wireless network base station A demodulator for demodulating S orthogonal modulation codes, each code comprising M binary bits representing an N-bit data symbol, where M=2N. The demodulator comprises a Logic 00 detector for comparing pairs of binary bits to 00 and outputting [+1,+1] i... | 08/22/2006 |
| 7092474 | Linear phase detector for high-speed clock and data recovery Methods and apparatus for recovering a clock and data from a data signal. A method provides for receiving a clock signal having a first clock frequency and alternating between a first level and a second level, and receiving a data signal having a first data rate, th... | 08/15/2006 |
| 7092457 | Adaptive iterative detection A system for estimating inputs and outputs of a digital transmission system is disclosed. The system includes a receiver front-end configured to receive an observed digital signal in the digital transmission system. The system further includes forward and backward r... | 08/15/2006 |
| 7092467 | Method for estimating symbol timing in feed-forward manner A receiving system for estimating symbol timing in a feed-forward manner comprises: a matched filter for receiving baseband signals and dividing them into real and imaginary numbers; a symbol timing estimator for receiving signals from the matched filter and estimat... | 08/15/2006 |
| 7088788 | Communication device and digital encoding method thereof The present invention provides a communication device and a digital encoding method thereof. The communication device comprises a first and a second emitting devices respectively communicating at a first and a second communication channels. Each emitting device emit... | 08/08/2006 |
| 7088202 | Methods and apparatus for an improved discrete LC filter A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ... | 08/08/2006 |
| 7088763 | Digital demodulation A digital demodulator includes a mixing section, 1st and 2nd digital comb filters, phase locked loop module, and a data recovery module. The mixing section is operably coupled to produce a digital I signal and a digital Q signal from a digital ... | 08/08/2006 |