Abstract:
Distribution of data transfer rates in a network, especially in a DVB-H-network, via a trading system, similar to a market place, between information signal providers of the network. A trading platform comprising data transfer rate acquisition devices or software agents (200) and a data transfer rate allocation device or a data transfer rate intermediary (700) are used to control data transfer rates of the individual information signal providers (1000). Subscribers to the trading platform are the software agents or data transfer rate acquisition devices. These act on behalf of the information signal provider, taking on the trade with data transfer rates of the multiplexes, and thereby acquiring transmission capacities for the information signal services associated therewith.
Abstract:
The invention relates to a method that reproduces a transmit program that is in the course of transmission and reduces an extraneous element in a transmit program, such as a TV or radio program, in the course of transmission. Said method consists of the following: a program is received as a transmit program in order to form a receive program that has a predominant first section as a primary program and a lower proportion of extraneous elements; the proportion of the extraneous element is blanked out in the receive program according to a control signal (16,16a) that chronologically identifies the extraneous element; the rest of the receive program is stored in a buffer memory (12,122,124); the receive program stored in said buffer memory is reproduced (14,14a) with a reduced, more particularlytotally suppressed extraneous element proportion. The temporarily stored program is made available for reproduction and is reproduced while a chronologically later section of the receive program is stored temporarily. The chronological extraneous element proportion in the reproduced program or in the stored program is reduced in response to the control signal (16,16a) within a later time section (Tk).
Abstract:
A method for determining the position or location of a transponder (110) by means of inductive coupling in a radio system, wherein the radio system comprises a transmitting/receiving apparatus (100) having an antenna device (102), said method having a step of generating an alternating magnetic field using the transmitting/receiving apparatus and the antenna device and a step of determining an allocation signal which represents a measure of inductive coupling between the antenna device of the transmitting/receiving apparatus and the transponder, wherein the inductive coupling can be allocated a distance or orientation of the transponder with respect to the antenna device.
Abstract:
The invention relates to a ground station (10) for generating a data stream (20) that comprises a main program and an additional program. Said ground station comprises a memory (12) that stores the additional program, which is for example a commercial, while the main program is a radio program produced in a sound studio. The ground station further comprises a multiplexer (14) with a first input (14a) for receiving the main program and a second input (14b) for receiving the additional program from the memory, and with an output. A control device (16) for controlling the multiplexer (14) switches, at a first interval, an output (14c) of the multiplexer (14) from the first input to the second input and at a second interval from the second input back to the first input, thereby inserting the additional program into the main program between the first interval and the second interval. The ground station further comprises a transmitter device (18) that is connected to the output of the multiplexer (14) on the input side and that is connected to a transmitting antenna (22) on the output side so as to provide the transmitting antenna with the data stream (20). The inventive method provides a simple means for inserting commercials into the data stream without requiring special devices in the sound studio. The ground station can easily detect at which intervals commercials were inserted. The commercials can be exchanged or updated via an optional remote maintenance device of the ground station with little effort.
Abstract:
Ein Verfahren zur Positions- oder Lagebestimmung eines Transponders (110) durch induktive Kopplung in einem Funksystem, wobei das Funksystem eine Sende- /Empfangsvorrichtung (100) mit einer Antenneneinrichtung (102) umfasst, mit einem Schritt des Erzeugens eines magnetischen Wechselfeldes mittels der Sende- /Empfangsvorrichtung und der Antenneneinrichtung und einem Schritt des Ermitteins eines Zuordnungssignals, das ein Maß für eine induktive Kopplung zwischen der Antenneneinrichtung der Sende-/Empfangsvorrichtung und dem Transponder darstellt, wobei der induktiven Kopplung eine Entfernung oder Orientierung des Transponders zu der Antenneneinrichtung zuordenbar ist.
Abstract:
For performing a coarse frequency synchronization compensating for a carrier frequency deviation from an oscillator frequency in a demodulation system (130) capable of demodulating a signal having a frame structure, the frame structure comprising at least one useful symbol (162) and a reference symbol (166) which is an amplitude-modulated sequence, firstly the signal is received. Thereafter, the received signal is down-converted. Then, an amplitude-demodulation of the down-converted signal is performed in order to generate an envelope. This envelope is correlated with a predetermined reference pattern in order to determine the carrier frequency deviation. Finally, the oscillator frequency is controlled based on the carrier frequency deviation. The reference symbol may comprise two identical sequences (300). In this case, the envelope obtained by the amplitude-demodulation has two portions which are based on the identical sequences (300). One of the portions of the envelope is correlated with the other one of the portions in order to determine the carrier frequence deviation. The oscillator frequency is controlled based on the determined carrier frequency deviation.
Abstract:
The invention makes it possible to combine a scaleable audio coder with TNS technology. According to the inventive method for encoding time signals (x1) sampled in a first sampling rate, second time signals (x2) with a sampling rate smaller than the first sampling rate are generated (12). The second time signals (x2) are then encoded (14) according to a first coding algorithm, and written into a bit stream (xAUS) (16). The encoded second time signals (x2c) are then decoded (14) again and are transformed (23, 24) into the frequency range, as are the first time signals. TNS prediction coefficients are then calculated (25) from a spectral representation of the first time signals (X1). The transformed output signal (X2cd) of the coder/decoder (14) with the first coding algorithm and the spectral representation (X1) of the first time signal are subjected to a prediction of the frequency (27) in order to obtain spectral residual values for both signals using the prediction coefficients calculated on the basis of the first time signals alone. These two signals are evaluated against each other (26, 28). The evaluated spectral residual values (Xb) are then encoded by means of a second coding algorithm in order to obtain coded evaluated spectral residual values (Xcb). These evaluated spectral residual values are written into the bit stream (xAUS) in addition to side information with the prediction coefficients.
Abstract:
The invention relates to a method for analyzing a biological sample (104') to determine a modification of said sample in comparison with a healthy biological sample. Said method involves producing a first image of the biological sample in a first imaging modality (DL) and producing a second image of the biological sample in a second imaging modality (PK). The first image is classified (K1)on the basis of a first predetermined parameter while the second image is classified (K2) on the basis of a second predetermined parameter, wherein the first image is classified independently of the second image. Depending on classification results (E1, E2), it is then determined whether the biological sample (104') shows any modification in comparison with a healthy biological sample.
Abstract:
The invention is based on the fact that a representation of an object can be improved by means of an irradiation, in view of an ensuing reconstruction of the object based on the representation. In order to achieve this, simulated data corresponding to a simulated irradiation of the object is used, before a reconstruction, as prior information for measuring an irradiation of the object and/or for producing the representation from a measured irradiation. The invention relates to a method for representing an object (10) by means of an irradiation. Said method involves preparing simulated data corresponding to a simulated irradiation of the object (10), in a memory (20) for example; using the simulated data for measuring an irradiation of the object (10) by means of a control mechanism (24), in a CT scanner (12) for example, in order to obtain the irradiation of the object; and/or using the simulated data for producing the representation from a measured irradiation by means of a data preparation device (26).
Abstract:
The invention relates to a method for detecting a transient in a discrete-time audiosignal (x(k)) which is carried out entirely in the time domain. Said method comprises a step in which the discrete-time audiosignal is segmented so as generate consecutive segments of identical length with unfiltered discrete-time audiosignals (xs(T), xs(T-1), xs(T-2), ...), after which the discrete-time audiosignal (xs(T)) in a current segment is filtered. Thereafter there are two options: either the energy (Ef(T)) of the filtered discrete-time audiosignal (Ys(T)) in the current segment can be compared with the energy (Ef(T-1)) of the filtered discrete-time audiosignal (Ys(T-1)) in a preceding segment, or a current relationship can be generated between the energy (Ef(T)) of the filtered discrete-time audiosignal (Ys(T)) in the current segment and the energy (Eu(T)) of the unfiltered discrete-time audiosignal (Xs(T)) in the current segment and said current relationship compared with a corresponding preceding relationship. On the basis of the one comparison and/or the other comparison it is determined whether a transient is present in the discrete-time audiosignal.