摘要:
A data transmission system contains at least two stations between which data bursts are exchanged via radio. A frequency hop is provided between the first channel mid-frequency which is used for the transmission and the second channel mid-frequency which is used for the feedback transmission, the height of the frequency hop corresponding to the intermediate frequency. Therefore, the local oscillators must not be tuned to new frequencies between the transmission and the feedback transmission.
摘要:
A circular buffer for a TDMA data transmission station temporarily stores digital transmit data occurring over a number of time slots in the transmission station and to be transmitted during a subsequent transmit time slot, and temporarily stores digital receive data received by the transmission station during a receive time slot and to be processed by it in a number of subsequent time slots. A TDMA data transmission station having a circular buffer is also provided.
摘要:
In a method for avoiding transients during switching processes in integrated circuits, a module of the integrated circuit is switched from a first operating state to a second operating state, a load change occurring thereby. In this case, it is ensured that the occurring quotient of load change and time duration for the transition from the first operating state to the second operating state does not exceed a predetermined limit value, thereby reducing or avoiding transients associated with such switching.
摘要:
A hybrid satellite positioning receiver architecture is provided with a first receive path and a second receive path. The first receive path downconverts received satellite positioning signals of a first type to an intermediate frequency range, and the second receive path downconverts received satellite positioning signals of a second type to the same intermediate frequency range.
摘要:
A data transmission system transmits first data bursts from a base station to mobile stations. The first data bursts at least in some cases contain two or more data blocks that are intended for different mobile stations. The data transmission system furthermore transmits second data bursts from at least one of the mobile stations to the base station and produces guard time intervals between successive data bursts.
摘要:
The present invention relates to reading-frame-correct fragment libraries, methods for their production, and the use of the fragment libraries for selection of functional polypeptide variants with improved properties.
摘要:
An apparatus which has a first stage with an input circuit with an inductive element (1), a second stage with a number of output circuits with loads (3, 4, 5) and a switching means (S1, S2, S3) for controlling the currents from the input circuit to the output circuits is used in order to produce a number of independent DC output voltages (V1, V2, V3) from a DC input voltage (Vin). The apparatus according to the invention can be operated in various modes.
摘要:
The present invention provides a method for the correction of signal distortions in an amplifier device, wherein a digital PWM modulator is operated with a variable-frequency system clock. The present invention likewise provides a device for the correction of signal distortions in an amplifier device.
摘要:
The invention relates to an apparatus and a method for ascertaining and correcting the optimum sampling time for an oversampled input bit stream. This involves feeding the data bit blanked with the current sampling phase into the comparative sequence and using the data bit to ascertain a new, corrected sampling phase. This decision-based approach enables the sampling phase to be continuously corrected.