Abstract: A swivel stand for amusement games that includes a swiveling body which is turnable and mounted in bearings in a frame with a small air gap between two footboards and drivable by a gear motor and on which a car seat, a motorcycle seat, a bike seat or vehicle seat with control elements of a driving simulator belonging therewith can be mounted.

Abstract: Apparatus for vehicle driving simulation including a cabin capable of being swivelled and having therewith a screen, control devices and the driver's seat, from where the road picture can be observed and controlled. The cabin is capable of being swivelled around an axis which is parallel to the viewing direction and above the center of gravity of the driver. The cabin is driven by a power drive dependent upon the signal of the centrifugal acceleration via a control amplifier and by use of a measuring device, a tipable back which is driven by a power drive dependent upon the acceleration signal via a control amplifier, elastic buffers which support the driver's seat and a vibrator which is intermittingly switched on dependent upon the rotation signal via a frequency divider and a control amplifier.

Abstract: A device for simulating a ride of a road. The device comprises several range wedge generators, each of which generate two rows of spots on the screen of the monitor, meeting at the horizon and being symmetrical to the middle of the road; ceiling area pair generators, plate area pair generators, wall area pair generators for the representation of equidistant rectangular or nearly rectangular areas in the road picture; control devices for these area pair generators; random access memories which store the abscissas of these areas; rectangle generators; a write-read memory storing the abscissas of the middle of the road, line select signals and rectangle coordinates; a digital computer for the computation of the horizontal and vertical movement of the road picture; and a column-and-line-generator, several multipliers, a generator for select pulses, an object coordinate computer, and a partner behavior computer.

Abstract: A tuning device for musical instruments including a high frequency oscillator having frequency controlled by a tone select switch and an octave select switch and the output S.sub.H of which is supplied to the input of an AND-gate, the output of which is supplied to the display device for the tone pitch and the other input of which is connected to the output of a reference time signal generator which comprises a flip-flop for a wait signal S.sub.W and which is started by the amplitude of the tone via a microphone, an amplifier, a filter, a smoothing device and a Schmitt-trigger, and which is stopped after the counting of a definite number of tone oscillations filtered and converted into rectangular pulses. The opening time of the gate is preset by external oscillation with an internal oscillation, the frequency of which is started depending upon the frequency of the tone to be measured.

Abstract: A device for the measurement of the number of cycles or half-cycles of a tone by counting the cycles during a reference time which is proportional to the cycle time of the tone to be measured, comprising a store for the cycle times, a comparator, a subtraction device in which a constant value is subtracted from the counted number of tone cycles, decoders, displaying devices for the oscillation error and the polarity sign, a retriggerable mono-flop for the oscillation existence signal, a flip-flop for a wait signal, a mono-flop for a read signal and logic elements for enabling the oscillation counter and the reference pulse counter.

Abstract: A tuning device for musical instruments, which includes: harmonic filters for the prevention of zero transits of the tone frequency voltage extraneous to the fundamental tone oscillation or to the second or fourth harmonic, a Schmitt-trigger for the conversion of the filtered tone frequency voltage into a digital oscillation, an oscillation counter with decoder and display means to the input of which the digital oscillation signal together with the reference period signal is fed via an AND-gate and which is reset by the signal for lacking amplitude of the tone frequency voltage, a reference frequency source, a reference period generator, triggering means for triggering the reference period generator, a flip-flop for the generation of an oscillation period signal, and a synchronizing device for synchronizing the beginning of the counting period with the reference frequency voltage.

Abstract: The devices of the simulation include several individual driving simulators of the same kind, disclosed in U.S. Pat. No. 4,077,138 Foerst issued Mar. 7, 1978 being connected to each other via signal lines; each one including computing devices, computing the speed, the parallel track position, the track angle, the sloping position in case of the vehicle being a bike, and the centrifugal acceleration; an interface device transferring the computed data into video signals; a road picture generator; vehicle picture generators; noise generators; an error detection device, and a control device for the simulation of an accident.

Abstract: The devices for the simulation includeSeveral video signal generators each of which brightening on a monitor one light spot pair representing two road border posts,An analog deflection voltage generator for the horizontal and vertical shifting and for the width and height alteration of said light spots, using an evaluation matrice, integrators, and digitally actuated electronic switches,An analog computing device for the computation of the speed signal, simulating a decreasing rotation-torque characteristic,Several curve function generators which generate standard curves on triggering by a digital curve sequence program generator,A curvature function generator which generates an additional voltage proportional to the curvature of the road and used for comparison with the steering wheel angle, the difference being supplied to a horizontal shifting control device,Oscillators for the generation of noises, to which the rotation signal, the signal of excessive centrifugal acceleration, and an error signal are supp