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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 8145164 | Methods and apparatus for handling a signaling message the relates to transmission rate restrictions A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the tran... | 03/27/2012 |
| 8126412 | Ultra low power RF link A receiver including a processor. A plurality of Fast Fourier Transforms of a plurality of signal segments of a signal can be determined by the processor. The plurality of Fast Fourier Transforms are stored. A frequency shift of the signal can be determined recursiv... | 02/28/2012 |
| 7983640 | Receiver circuit A receiver circuit for receiving an analog signal comprises a mixer device, a first integrator device coupled to the mixer device, a second integrator device following the first integrator device, a quantizer device, and first and second feedback digital/analog conv... | 07/19/2011 |
| 7869781 | Method and system for mitigating the effects of pulling in multiple phase locked loops in multi-standard systems Certain aspects of a method and system for mitigating effects of pulling in multiple phase locked loops in multi-standard systems may include selecting an input frequency range of operation at a voltage controlled oscillator based on a particular wireless band of op... | 01/11/2011 |
| 7844238 | Compensation for holes in the read range of an RFID reader technical field A reader and a corresponding method are provided for processing transponder data signals received from a transponder in an RFID system. The reader includes an exciter which generates excitation signals, a receiver which conditions the transponder data signals, an an... | 11/30/2010 |
| 7787846 | Ultra low power RF link An RF system is capable of transmitting and receiving sensor data using an ultra low power narrowband RF signal. The system handles frequency drift and other problems inherent in such a system through a spectrogram statistical analysis, dynamic programming, and narr... | 08/31/2010 |
| 7684774 | Systems and methods for recovery of a sub-carrier signal from a stereophonic multiplexed signal Disclosed herein are systems and methods for recovering a sub-carrier signal from a multiplexed signal having an embedded pilot tone signal. The recovery system includes circuitry for recovering a pilot signal from the received multiplexed signal, for generating a f... | 03/23/2010 |
| 7496336 | Weighting circuit for adjusting a control loop For a weighting circuit for adjusting a feedback control loop to an input signal of the feedback control loop the feedback control loop comprises a system under control and a device for generating a control difference signal by subtracting a weighted feedback signal... | 02/24/2009 |
| 7437131 | Active mixer with self-adaptive bias feedback An active mixer with self-adaptive bias feedback is described and resolves a poor linearity, inconvenient design of a bias circuit, and other defects of a conventional mixer. The dual self-feedback bias structure according to this invention is used. The active mixer... | 10/14/2008 |
| 7409198 | Wideband variable gain amplifier in an ultra wideband receiver A method (700, 1100) and apparatus (300) are provided in a receiver for applying a variable gain to a received signal including a transmitted codeword in accordance with an Ultra Wideband (UWB) protocol. A first signal is generated and input to a selec... | 08/05/2008 |
| 7403757 | Automatic gain control method in wireless packet communication system The present invention relates to an automatic gain controller in a wireless packet communication system and an automatic gain control method thereof. The automatic gain controller includes a variable gain amplifier, a signal saturation determining unit, a power calc... | 07/22/2008 |
| 7389097 | Receiver, transceiver circuit, signal transmission method, and signal transmission system A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level of the input signal is determined based on the known offset and on t... | 06/17/2008 |
| 7379728 | Wireless communication system A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge port... | 05/27/2008 |
| 7346331 | Power management for locking system In an access control system, a method and system for power management. A method of power management in a wireless access control system includes monitoring usage of a transceiver in a remote access point in a wireless access control system, de-activating the transce... | 03/18/2008 |
| 7339504 | Communications device with asynchronous sample rate converter An asynchronous sample rate converter including a feedback loop configured to generate a control signal corresponding to an output sample rate that is synchronous with an output clock signal and a normalized time distance value corresponding to a plurality of input ... | 03/04/2008 |
| 7310497 | Radio communication repeater The invention proposes a repeater designed for indoor transmissions. The useful frequency band is split into two frequency bands and the repeater amplifies the signals from one of the bands and translates them to the other band. The transposition of frequency bands ... | 12/18/2007 |
| 7274923 | Wireless communication system A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge port... | 09/25/2007 |
| 7269401 | Signal processing circuit for tuner which applies signal processing based on variation in frequency of intermediate frequency signal A signal processing circuit for a tuner has a detector band pass filter for extracting a carrier of an intermediate frequency signal, a frequency counter for counting, based on a clock signal, a frequency of a carrier of the intermediate frequency signal which passe... | 09/11/2007 |
| 7228106 | Method and apparatus for adjusting usage of DSP of handheld terminal A method and apparatus for adjusting usage of digital signal processing (DSP) in a handheld terminal receives reception level data and reception quality data from a network, compares the received reception level data value and reception quality data value with pre-s... | 06/05/2007 |
| 7200373 | Antenna detection and diagnostic system and related method An antenna detection and diagnostic system and associated method, including current and voltage detection circuits, are disclosed for detecting antenna failure mechanisms for integrated radio receivers. Integrated current limit detection circuitry is disclosed that ... | 04/03/2007 |
| 7155186 | AM receiver with controllable RF input circuit AM receiver comprising an RF input circuit for receiving an RF AM signal, demodulation means providing an audio signal carried by said RF AM signal as well as automatic gain control means for stabilising an RF carrier dependent DC level at the output of said demodul... | 12/26/2006 |
| 7120408 | Differential signal squelch detection circuit and method An electrical circuit detects a “squelch,” or “out-of-band,” state of a differential signal pair having a positive (“p”) signal line and a negative (“n”) signal line. In one embodiment of the invention, a first and a second comparator each have posit... | 10/10/2006 |
| 7103336 | Radio receiver, radio receiving method, and recording medium The AGC threshold of electric intensity level is set by the signal processor portion 107 in response to the measured result of the error rate measuring circuit 109 that measures the error rate of the received signal, and the gain control operation of t... | 09/05/2006 |
| 7092733 | Mobile radio communication apparatus capable to plurality of radio communication systems A mobile radio communication apparatus comprises a wireless transmitter-receiver device configured to perform transmission/reception of a radio signal, a signal processing device including a resource to which functions are defined, wherein the resource handles at le... | 08/15/2006 |
| 7085540 | Radio telecommunications network, a method of transmitting data in a radio telecommunications network, a receiver, and a method of receiving A radio telecommunications network comprises a transmitter (2) and a receiver (4). The transmitter (2) is operative to send signals indicative of data, and the receiver (4) is operative to receive the signals (12) and decode the si... | 08/01/2006 |
| 7079821 | Signal correction method and receiver A signal correction method and receiver receives an asynchronous wireless signal including a code signal, and determines whether the code signal is discriminated as a regular code. When the determined code signal is not discriminated as the regular code, the signal ... | 07/18/2006 |
| 7076261 | Synchronization of optical signaling beacons An arbitrary number of signaling beacons are synchronized simultaneously and automatically by a received modulated control signal in accordance with an arbitrary communication protocol over a communication link which may be separate from or superimposed upon a perce... | 07/11/2006 |
| 7068986 | Method for processing radio waves, and audio system utilizing the method In multi-path regions of high wave strength, noise in produced sounds of a vehicle audio system is reduced due to controlling of amplification of radio waves received by an on-glass antenna on the basis of wave strength at a running position of a vehicle and its cha... | 06/27/2006 |
| 7062241 | Signal processor and method for the system-independent digital evaluation of mobile communications reception signals of various mobile phone standards Only a single, standard-independent clock rate is generated in a signal processor or a signal processing structure, and correspondingly only precisely one clock frequency generator is then arranged on the chip. The signal processing path includes at least one contro... | 06/13/2006 |
| 7040795 | Fiber optic Christmas tree stand A Christmas tree stand has a base for supporting the stand above a ground level and a shell having a lateral surface. The shell is disposed atop the base so as to define an inner volume and the shell houses electrical components within the inner volume. The shell ha... | 05/09/2006 |
| 7027785 | Transmitter RF power control An electronic system for accurately controlling the RF output power from a power amplifier (21) is implemented using a multiplier (28) which multiplies the output power by itself to provide a DC component which is fed to a variable gain amplifier (2... | 04/11/2006 |
| 7013123 | Wireless communication system A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge port... | 03/14/2006 |
| 6968165 | Frequency scanning receiver permitting quick PPL setting A frequency scanning receiver minimizes the time needed for setting the frequency of a phased lock loop of a first local oscillator. The frequency scanning receiver is configured so that when the reference frequency of the PLL of the first local oscillator has been ... | 11/22/2005 |
| 6961681 | System and method providing virtual applications architecture A virtual applications architecture is provided according to the present invention. The architecture includes a topology manager for managing applications across a plurality of members, and a virtual applications manager for defining a plurality of resources compris... | 11/01/2005 |
| 6934522 | Automatic gain control apparatus In an automatic gain control amplifier, an RF automatic gain controller controls the gain of a radio frequency signal. A frequency converter frequency-converts the radio frequency signal into an intermediate frequency signal. An IF automatic gain controller controls... | 08/23/2005 |
| 6768901 | Dynamic hardware resource manager for software-defined communications system A hardware resource manager (18) dynamically allocates hardware resources in a software-defined communications system. The hardware resource manager (18) creates a specification of required hardware resources (300) necessary for executing a syst... | 07/27/2004 |
| 6766156 | Radio transmitter-receiver, high-frequency radio receiver, and control unit A low-noise amplifier 500a having low-distortion characteristics (low distortion LNA), a low-noise amplifier 500b of a low current consumption type(low current consumption LNA), and radio-frequency switches 502 and 509 for s... | 07/20/2004 |
| 6658242 | TDMA wireless telephone system with independently tracked demodulation parameters A wireless telephone system comprises a base transceiver having a base receiver and a plurality of wireless handsets. Each handset comprises a handset transceiver for establishing a time-division multiple access (TDMA) link over a shared channel with the ... | 12/02/2003 |
| 6643498 | Wireless receiver, wireless receiving method, and recording medium A signal processing unit 107 outputs a control parameter of a gain control operation-starting electric field strength value in the form of a signal CN1 in correspondence with data of transfer speed/number of FM level by referring to a memory 108. Then, th... | 11/04/2003 |
| 6345177 | Signal analog processing circuit for satellite positioning receiver An analog circuit for receiving satellite signals through an antenna. The circuit includes frequency transposition circuits and an analog/digital converter. Each frequency transposition circuit includes at least two frequency dividers of which due first i... | 02/05/2002 |
