| Patent Number |
Title Of Patent |
Date Issued |
| 7525483 |
Receive device and method for receiving a receive sequence |
April 28, 2009 |
| A receive device for determining a location of a transmitter device includes an evaluator formed to determine a first location of the transmitter device from a time of arrival of a first receive sequence, and a second location of the transmitter device from a time of arrival of a sec |
| 7372802 |
Message communication via channels having strong fading |
May 13, 2008 |
| In a transmitting/receiving concept a redundancy-adding encoder is used in order to obtain two data streams for different transmitters. In the receiver, the receiving signal is sampled by a first sampler synchronous to the first transmitter and is output by a second sampler synchronous t |
| 7173979 |
Method and device for transmitting information symbols using a plurality of carriers and method |
February 6, 2007 |
| The invention relates to a method and a device for transmitting information symbols using a plurality of carriers, wherein a first transmission symbol is produced (52, 54) on the basis of an information symbol. A second transmission symbol is also produced (52, 54) on the basis of th |
| 7061997 |
Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems |
June 13, 2006 |
| A method and an apparatus relating to a fine frequency synchronization compensating for a carrier frequency deviation from an oscillator frequency in a multi-carrier demodulation system of the type capable of carrying out a differential phase decoding of multi-carrier modulated signa |
| 6993094 |
Coarse frequency synchronization in multicarrier systems |
January 31, 2006 |
| A method and apparatus provide coarse frequency synchronization compensating for a carrier frequency deviation from an oscillator frequency in a demodulation system capable of demodulating a signal having a frame structure with at least one useful symbol and a reference symbol which |
| 6993084 |
Coarse frequency synchronisation in multicarrier systems |
January 31, 2006 |
| A method for generating a signal having a frame structure, each frame of the frame structure comprising at least one useful symbol, a guard interval associated to the at least one useful symbol and a reference symbol, comprises the steps of performing an amplitude modulation of a bit |
| 6973121 |
Repeater system and method of receiving a modulated input signal and transmitting a modulated ou |
December 6, 2005 |
| A repeater system for receiving a modulated input signal and for transmitting a modulated output signal comprising a clock oscillator for providing a repeater system clock, a demodulator for demodulating an input signal and a modulator for modulating the demodulated signal to obtain a |
| 6931084 |
Differential coding and carrier recovery for multicarrier systems |
August 16, 2005 |
| A method of performing an echo phase offset correction in a multi-carrier demodulation system involves the step of differential phase decoding phase shifts based on a phase difference between simultaneous carriers having different frequencies. An echo phase offset is determined for each |
| 6751267 |
Method for reducing peak values in single-carrier modulated or multi-carrier modulated digital t |
June 15, 2004 |
| For reducing a peak value in single-carrier modulated or multi-carrier modulated digital transmitter signals, the peak value is first determined from a plurality of transmitter symbols contained in the digital signal. If a predetermined value is exceeded, a replacement symbol is generate |
| 6584138 |
Coding process for inserting an inaudible data signal into an audio signal, decoding process, co |
June 24, 2003 |
| In a coding method and a coder for introducing a non-audible data signal into an audio signal, the audio signal is first transformed to a spectral range and the masking threshold of the audio signal is determined. A pseudo-noise signal and a data signal are provided and multiplied with |
| 6314289 |
Apparatus and method for transmitting information and apparatus and method for receiving informa |
November 6, 2001 |
| An apparatus for transmitting information comprises a bitstream source for providing a bitstream representing the information, a redundancy adding encoder for generating an encoded bitstream, which is arranged to output, for a first number of input bits, a second number of output bits, t |
| 6201798 |
Signaling protocol for satellite direct radio broadcast system |
March 13, 2001 |
| A satellite direct radio broadcast system is provided which assembles bits of broadcast programs into prime rate increments, several of which are assembled into a frame. Frames are divided into symbols which are demultiplexed into alternating ones of a plurality of prime rate channels. |
| 6101475 |
Method for the cascaded coding and decoding of audio data |
August 8, 2000 |
| In a method for the cascaded coding and decoding of audio data the spectral components of the short-time spectrum associated with a data block are formed for each data block with a certain number of time input data, the coded signal is formed, by quantization and coding, on the basis of |
| 5918203 |
Method and device for determining the tonality of an audio signal |
June 29, 1999 |
| The tonality of an audio signal is determined by a method which includes the steps of blockwise frequency transforming a digital input signal x(n) to create a real positive-value representation X(k) of the input signal, where k designates the index of a frequency line, and determining th |
| 5736943 |
Method for determining the type of coding to be selected for coding at least two signals |
April 7, 1998 |
| In the case of coding a plurality of signals which are not independent of e another, a selection of the suitable type of coding is made as a function of a similarity measure.According to one aspect of the invention, the similarity measure is determined by firstly coding one of the signal |
| 5703999 |
Process for reducing data in the transmission and/or storage of digital signals from several int |
December 30, 1997 |
| A process for reducing data in the transmission and/or storage of digital signals of several interdependent channels is described.As the signals from the channels are not independent of one another, an additional data quantity reduction is possible during transmission.In known processes for |
| 5701346 |
Method of coding a plurality of audio signals |
December 23, 1997 |
| In a method of coding a plurality of audio signals, the left and the right basic channel as well as the central channel are combined by joint stereo coding so as to obtain a jointly coded signal, which is decoded so as to provide simulated decoded signals. The simulated decoded signals a |
| 5579430 |
Digital encoding process |
November 26, 1996 |
| A digital encoding process for transmitting and/or storing acoustical sigs and, in particular, music signals, in which scanned values of the acoustical signal are transformed by means of a transformation or a filter bank into a sequence of second scanned values, which reproduce the |
