摘要:
Gegenstand der Anmeidung ist eine Erweiterung der Detenerfassung in einem bekannten Zielfuhrungssystem für Kraftfahrzeuge. Es werden auch Geschwindigkeit und Länge der einzelenen die zugeordneten Induktionsschleifen überfahrende Fahrzeuge erfaßt Die Erfassung erfolgt durch einen Detektor, der die durch das Fahrzeug hervorgerufene Induktivitäsänderung analog mißt. und durch eine dem Detektor nachgeschaltete digitale Auswerteschaltung.
摘要:
In a radio receiver with digital signal processing, a first and a second auxiliary signal are derived from a received stereo multiplex signal. The first auxiliary signal depends on the presence of signal components, the frequency of which is above the useful frequency range of the stereo multiplex signal, and the second auxiliary signal depends on the symmetry of the side bands of the stereo auxiliary carrier. The first and second auxiliary signals are combined to form an interference signal indicating the existence of interference. At least one control signal for application to the audio signals obtained by decoding the stereo multiplex signal is derived from the interference signal.
摘要:
Described is an amplitude demodulator for demodulating a quadrature-modulated stereo signal for radio receivers. The invention calls for a digital intermediate-frequency signal to be generated from the received signal. The digital intermediate-frequency signal is transposed into the baseband signal, two orthogonal components being thus formed. From these two orthogonal components, a magnitude signal and a phase signal are derived. The tangent of the phase signal is determined and the tangent is multiplied by the magnitude signal to give a stereo difference signal.
摘要:
A process and device are disclosed for displaying the name of a broadcasting station and the type of broadcast program transmitted in a digital data telegram from a broadcasting station on the display of a wireless receiver during a search mode. A timing element controls the display of information.
摘要:
In a circuit for deriving audio signal masking signals in a radio receiver, a signal which is substantially proportional to the intensity of the reception field is transmitted through a low pass filter then weighted with a predetermined function.