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| Number | Title | Issue Date |
| 8165193 | Method for wireless data transmission between a base station and a passive transponder, as well as a passive transponder A method for wireless data transmission, in, for example, RFID systems, between a base station and a passive transponder, as well as a passive transponder is provided by inductive coupling, as well as a passive transponder. It is possible to transmit data from the b... | 04/24/2012 |
| 8165194 | Space-time encoding method for a multi-antenna communication system of the UWB pulse type The present invention relates to a space-time coding method for a UWB transmission system comprising at least two radiated elements. This method codes a block of information symbols S=(a1, a2 . . . , aP2)) bel... | 04/24/2012 |
| 8077768 | Digital signal processing apparatus A digital signal processing apparatus for converting an analog signal to a digital signal and digitally processing the digital signal is disclosed. The apparatus includes a modulation part for performing pulse density modulation on the analog signal and outputting a... | 12/13/2011 |
| 8059709 | Space-time coding/decoding method for a dual-antenna pulse UWB communication system This invention relates to a space-time coding method for a UWB transmission system comprising two radiation elements. This method codes a block of information symbols (S=(a1,a2,a3,a4)) belonging to a PPM modulation constel... | 11/15/2011 |
| 8059710 | Space-time coding method for a multi-antenna system of the UWB pulse type A space-time coding method for a UWB transmission system comprising at least two radiated elements. The method codes a block of information symbols S=(a1, a2 . . . , ap,)) belonging to an M-PPM modulation or M-PPM-M′-PAM composite ... | 11/15/2011 |
| 7986729 | High bandwidth data transport system The present invention provides for a methods, system, and apparatus relating to data transmission. One method of the present invention includes representing data using at least one ultra wideband pulse, sending the at least one ultra wideband pulse over an electrica... | 07/26/2011 |
| 7983334 | Noncoherent UWB cooperative communications system A method between terminals in a cooperative UWB pulse telecommunications system including a source terminal, a relay terminal, and a recipient terminal, the method including: transmitting, at the source terminal, a data symbol for the recipient terminal as a source ... | 07/19/2011 |
| 7970047 | UWB channel estimation using new generating TR transceivers The present invention presents a simple and novel channel estimation scheme for UWB communication systems. As disclosed herein, the present invention maximizes the extraction of information by incorporating a new generation of transmitted-reference (Tr) transceivers... | 06/28/2011 |
| 7957464 | Digital signal receiver A digital signal receiver including: a signal edge detector configured to receive a signal including a code and detect an edge of the signal; a reference point detector configured to detect a reference point for pulse width detection from a rising time point or fall... | 06/07/2011 |
| 7953146 | Method for wireless data transmission between a base station and a transponder via inductive coupling A method and transponder for wireless data transmission between a base station and a transponder is provided by means of inductive coupling, the transponder supports a first data transmission protocol type and/or a second data transmission protocol type. In the firs... | 05/31/2011 |
| 7940841 | Modulating circuit, transmitting apparatus using the same, receiving apparatus and communication system A communication system includes a modulating circuit to increase the amount of information to be transmitted, a transmitting apparatus capable of easily generating a desired waveform even for any very short wavelets, a receiving apparatus capable of easily separatin... | 05/10/2011 |
| 7885326 | Method for determining a pulse position in a signal A method is presented for determining an actual pulse position in a signal. This signal comprises a plurality of successive frames, wherein each frame has length L and contains one pulse with width W, a number of discrete possible pulse positions being considered wi... | 02/08/2011 |
| 7843992 | Global instruction broadcasting for pulse-position modulated data transmission In one embodiment, a circuit is provided that includes: an impulse generator operable to provide a pulse train; a pulse position modulator having a splitting junction configured to receive the pulse train, the pulse position modulator including a plurality of n tran... | 11/30/2010 |
| 7817715 | Space-time coding method for a UWB pulse-type multi-antenna system This invention relates to a space-time coding method for a UWB transmission system including three or four radiative elements. It also relates to a method for transmitting a plurality of data symbols belonging to a PPM modulation constellation or a PPM-PAM composite... | 10/19/2010 |
| RE41739 | Synchronization/reference pulse-based powerline pulse position modulated communication system A transmitting controller is connected to a powerline and on command places a reference signal and a series of signal pulses in the powerline at a series of signal timing positions related to zero voltage crossing points so that the signals pulses are substantially ... | 09/21/2010 |
| 7773669 | Cascaded phase pulse position and pulse width modulation based digital transmitter Briefly, in accordance with one or more embodiments, a digital transmitter may comprise two or more phase modulators in a cascaded arrangement. The phase modulators may modulate a local oscillator signal using control signals derived from the quadrature baseband dat... | 08/10/2010 |
| 7697605 | Signal transmitting/receiving system and method, signal transmitting apparatus and method, signal processing apparatus and method, recording medium, and program for transmitting/receiving signals unaffected by other apparatuses A signal transmitting/receiving system and method, signal transmitting apparatus and method, signal processing apparatus and method, recording medium, and program are provided. A signal transmitting/receiving system includes a transmitter configured to transmit sign... | 04/13/2010 |
| 7693216 | Modulating transmission timing for data communications A modulation method, applicable for augmentation of present art modulated signals. The method, for communicating data from a transmitter to a receiver, is based on periodical burst transmissions, set at a nominal timing, of signals which are either pure carriers or ... | 04/06/2010 |
| 7613239 | Digital signal offset adjusting apparatus and pulse pattern generator using the same A digital signal offset adjusting apparatus has a capacitor causing an output terminal to pass a high frequency band of an input digital signal. A first coil has one end connected to an input terminal and a second coil has one end connected to an output. An operatio... | 11/03/2009 |
| 7551670 | UWB communication device and UWB communication method The present invention provides a UWB communication device and a UWB communication method with which the communication speed can be improved, and with which accurate sending and receiving of data and a lower power consumption can be achieved. A communication device i... | 06/23/2009 |
| 7539245 | System and method for digital transmission and modulation of conjugate pulse position The invention relates to a communication system comprising a modulator, encoder, decoder, demodulator, and a data input source, which employs an improved modulation technique by effectively utilizing the conjugate signal space in Digital Pulse Position Modulation (D... | 05/26/2009 |
| 7535958 | Hybrid wired and wireless chip-to-chip communications A hybrid wireless and wired system distributes precise timing and synchronization information among the nodes over a wired interconnect structure while data is transmitted wirelessly using ultra-wideband radio over short distances. The timing information communicate... | 05/19/2009 |
| 7532668 | Transmitter and transmitting method, receiver and receiving method, pulse detection method, and tracking method Method and apparatus for sending and receiving pulses in the ultra wide band communication system while avoiding spectrum problems. Carrier waves, for example, are generated with a frequency set in the center of the transmission band of 7.5 GHz to avoid the 5 GHz cu... | 05/12/2009 |
| 7466752 | Determination of the position of a pulse peak The invention relates to a method for determining the position xp of a peak of a pulse in a signal received at a receiver. In order to improve the accuracy of this determination, the method comprises taking samples of said received signal, determining at ... | 12/16/2008 |
| 7466753 | Microcontroller having a digital to frequency converter and/or a pulse frequency modulator A microcontroller having digital to frequency converter and pulse frequency modulator capabilities. The digital to frequency converter (DFC) generates a 50 percent duty cycle square wave signal that may be varied in frequency, wherein the 50 percent duty cycle squar... | 12/16/2008 |
| 7436883 | Nonlinear inversion A system and method are disclosed for processing a signal propagated through a nonlinear channel. The method includes modeling the channel characteristics to produce a linearized channel model, deriving an inverse linearized channel model from the linearized channel... | 10/14/2008 |
| 7418297 | Frame length modulation and pulse position modulation system A system includes a transceiver circuit to transceive at least a first analog signal and a digital signal. The system also includes a controller circuit, coupled to the transceiver circuit, to deliver at least one control signal thereto, the controller circuit inclu... | 08/26/2008 |
| 7418036 | Method and circuit for timing pulse generation In a method and a circuit for timing pulse generation, a frame pulse of a corresponding system is masked when an alarm signal of either a working system or a protection system is received, a monitoring window which indicates an absorbable range of delay time differe... | 08/26/2008 |
| 7414463 | Demodulator for demodulating pulse position modulated signal A PPM signal demodulator for demodulating a PPM signal transmitted in a UWB radio communication system includes a rectifier for rectifying a received PPM signal to obtain an absolute value signal, integrator and comparators for integrating the absolute value signal ... | 08/19/2008 |
| 7409002 | Signal modulation According to an embodiment of the invention, a method and apparatus for signal modulation are described. According to an embodiment of the invention, a method comprises producing and transferring a modulated signal. The modulation of the signal is over a plurality o... | 08/05/2008 |
| 7403746 | Adaptive frame durations for time-hopped impulse radio systems A method determines a duration of a frame in an impulse radio system for radio ranging. Channel state information of a channel between two transceivers is estimated periodically. A signal to noise and interference ratio is also estimated periodically. The frame dura... | 07/22/2008 |
| 7388911 | In-band-on-channel broadcast system for digital data An FM broadcast transmitter transmits a broadcast signal having a carrier at a broadcast frequency and sidebands, able to be transmitted at full power, within a transmission bandwidth around the carrier. It includes a source of a modulated FM stereo signal having a ... | 06/17/2008 |
| 7386045 | Dynamic differentiated link adaptation for ultra-wideband communication system Optimum usage of time diversity and significantly higher data rates are achieved by utilizing an adaptive Ultra-wideband impulse radio (UWB IR) transmission scheme based upon information about the channel state at a particular time instant. Through the use of channe... | 06/10/2008 |
| 7386071 | Method and apparatus for decoding an incident UWB signal with inter symbol interferences The method is for decoding an incident UWB signal including successive incident pulses respectively received during successive Pulse Repetition Periods (PRP). The method includes determining a correlation matrix, whose terms respectively represent the correlation be... | 06/10/2008 |
| 7376357 | System and method of using variable pulses for symbology A method and system for storing and transmitting data using variable pulse symbology over a fiber optic or ultra wide band system. Data is stored in memory, accessed and transformed into an electronic or photonic pulse and/or space which has a variable duration, the... | 05/20/2008 |
| 7376208 | Reception method for packetized information with automatic repeat request A decoding method is carried out in a receiver configured to accept format information relating to sequences of input data, to use format information in the decoding of each input sequence, and to issue an acknowledgement signal in the event that an input sequence i... | 05/20/2008 |
| 7366235 | UWB demodulating apparatus A demodulated signal is to be generated by use of a first detection signal detected a presence/absence of a signal according to a correlation between a reception signal PPM-modulated at a pulse interval of T and a pulse variation width of τ and the reception signal... | 04/29/2008 |
| 7358781 | Automation device with stored profile The invention relates to an automation device, in which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one cl... | 04/15/2008 |
| 7356100 | Estimating channel impulse response and equalizer coefficients in UWB communication systems A method estimates a channel impulse response in an ultra wide bandwidth (UWB) system. Multiple training sequences modulated at a chip rate are received. Each training sequence is sampled by parallel with multiple correlators at sampling rate substantially slower th... | 04/08/2008 |
| 7352793 | System and method for ultra wideband communications using multiple code words A method is provided for operating a wireless device. In this method, a first operation is performed on a wireless signal using a first group of wavelets arranged according to a first analog code word format (720). A second operation is then performed on the ... | 04/01/2008 |
