Patent ID: 9396719
Filing Date: 2016-07-19
CPC Classification: G10K

Claim Text:
1. Method for synthetic generation of an acoustic signal, proceeding from a control signal (AS) for controlling a motor or proceeding from a detection signal, wherein the control signal (AS) or the detection signal is fed as input signal to a device for generating the acoustic signal and at least one electromechanical transducer generates the acoustic signal by means of an electrical transducer excitation signal, comprising the following steps: transformation of the control signal (AS) or the detection signal into a digital input signal (DS) by a mapping function; calculating an address and an address increment from the digital input signal (DS) with the aid of at least one vehicle-specific parameter (PA), wherein the at least one vehicle-specific parameter (PA) is used for frequency and/or phase modulation, readout of data corresponding to the calculated address from a memory in which for each of a multiplicity of addresses there is stored a multiplicity of acoustic signals having small frequency and/or amplitude differences and the readout taking a modulo operation into account, wherein the acoustic signals assigned to one address are selected randomly and as a function of the at least one vehicle-specific parameter (PA) and are integrated into one digital output signal (d_AS), wherein the acoustic signals are divided into groups and/or have a specific weighting and the acoustic signals are selected from particular groups or from acoustic signals having a particular specific weighting when defined values formed from at least one vehicle-specific parameter (PA) are exceeded or undershot, and the selected acoustic signals compose a particular portion of the digital output signal (d_AS) formed by the acoustic signals, conversion of the integrated digital output signal (d_AS) into an analog output signal (a_AS), and feeding of the analog output signal (a_AS) as a transducer excitation signal to at least one electromechanical transducer.