Abstract: A system is provided for conveying information to an occupant of a motor vehicle. In one example of an implementation, driving-relevant information is obtained for example using sensors or a navigation system. An audio message is determined based on the obtained driving-relevant information. Spatial characteristics for the audio message are also determined. The audio message is output in the motor vehicle with the determined spatial characteristic via loudspeakers.

Abstract: A method for adjusting a loudness of an announcement sound signal relative to a loudness of an entertainment sound signal, the method including the steps of determining the loudness of the entertainment sound signal, and adjusting the loudness of the announcement sound signal relative to the entertainment sound signal by determining a self-adaptive gain offset of the announcement sound signal relative to the entertainment sound signal, the self-adaptive gain offset adapting to the auditory perception of a user to which the entertainment sound signal and the announcement sound signal are output.

Abstract: A system is provided for conveying information to an occupant of a motor vehicle. In one example of an implementation, driving-relevant information is obtained for example using sensors or a navigation system. An audio message is determined based on the obtained driving-relevant information. Spatial characteristics for the audio message are also determined. The audio message is output in the motor vehicle with the determined spatial characteristic via loudspeakers.

Abstract: A head-tracking system and a method for operating a head-tracking system in which a stationary reference point is detected are provided. A detector for detecting the position of a head is calibrated based on the detected stationary reference point. In one example implementation, the detection of the stationary reference point is used to determine the position of the head.

Abstract: A tracking system determines the orientation of an object. A transceiver transmits a signal and detects responses from multiple transponders. A processing unit determines an orientation parameter of the object by comparing the responses from the multiple transponders.

Abstract: A system quantifies listener envelopment in a loudspeakers-room environment. The system includes a binaural detector that receives frequency modulated audible noise signals from multiple loudspeakers. The binaural detector generates detected signals that are analyzed to determine an objective listener envelopment. The envelopment is based on binaural activity of one or more sub-bands of the detected signal.

Abstract: A source width estimation system may estimate an auditory source width of a sound. The system detects a first frequency modulated noise signal and a second frequency modulated noise signal. The detected noise signals may be processed to obtain an average value of a lateral width of a binaural activity over time and a plurality of sub-bands. The auditory source width of the noise signals may be determined from the average value of the lateral width of the binaural activity.

Abstract: A tracking device may be used to detect a position or movement of an object. The tracking device may include a housing that supports an emitter. The emitter may transmit a first signal. A measurement device within the housing may measure rotational movement of an object. Circuitry may receive a second signal in response to the first signal. The circuitry may reset an angle value to a predetermined value based on the second signal. The angle value may be determined by a measurement of the rotational movement of the object.

Abstract: A method and system for determining the position of a sound source in relation to a reference position, comprising the steps of generating a sound signal emitted from the sound source, detecting the emitted sound signal, processing the sound signal by the use of a physiological model of the ear, deducing at least one of lateral deviation in relation to the reference position, time delay of the sound signal from the sound source to the reference position, and the sound level of the detected sound signal.

Abstract: A load conscious control valve arrangement for modifying the pressure applied to the rear hydraulic brake of a motor cycle comprises a control valve rigidly mounted by a bracket on the frame of the motor cycle. The stem of the control valve is connected by a tension spring to an adjustable spring support of a combined spring/damper suspension strut. Deflection of the rear suspension as a result of increased loading causes an increased tension to be applied by the spring and thereby increases rear brake pressure. To compensate against the decrease in tension which would otherwise be applied to the valve stem when the adjustable stop is adjusted but there is no increase in the load on the motor cycle, an eccentric formed on the adjustable stop so that rotation of the stop may be provided to adjust the suspension strut causes a shift in the radial direction of the suspension strut of the point Z at which the spring is connected to the spring support.

Abstract: A pressure control assembly comprises a control valve set for controlling communication between an inlet and an outlet, a control spring acting in a sense to resist closure of the valve set and a device for varying the control force of the control spring acting on the valve set. The device for varying the control force may comprise a differential pressure responsive member which moves in response to a differential pressure to move an abutment engaging the spring between normal and actuated positions to compress or expand the spring and thus vary its force.

Abstract: A valve assembly for use in a vehicle braking system comprises two valves having respective inlets for connection to separate wheel brakes. Each valve has a plunger carrying one part of a valve set which co-operates with a stationary part of the valve set to control communication between the inlet and outlet, and a spring urging the plunger in a direction to maintain the valve set open. Each plunger has opposed piston portions of different dimensions subjected to the pressure at the inlet of the associated valve to produce a net force tending to close the valve, and a further portion subjected to the inlet pressure of the other valve to produce an additional force which is removed upon failure of that inlet pressure of the other valve.

Abstract: A brake pressure limiting or reducing valve has its cut-off or operating pressure determined in accordance with vehicle loading through the agency of a simple tension spring connected directly between a movable member of the valve and a portion of the vehicle which is subject to vertical movement, relative to the valve, in response to changes in the loading of the vehicle.