Regurating sound generating system for environment friendly vehicle and a method for controlling the system
First Claim
1. An environmentally-friendly vehicle sound generator control apparatus comprising:
- a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data;
a sound output unit arranged in an environmentally-friendly vehicle to output a pedestrian'"'"'s vehicle recognition sound;
a sound sensing unit arranged to be spaced apart from the sound output unit to sense the pedestrian'"'"'s vehicle recognition sound output from the sound output unit;
a sound source sound extraction unit for extracting and dividing the pedestrian'"'"'s vehicle recognition sound sensed by the sound sensing unit for each of a plurality of frequency bands;
a control unit for storing the frequency band-specific sound data of the pedestrian'"'"'s vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and
a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian'"'"'s vehicle recognition sound.
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Accused Products
Abstract
An environmentally-friendly vehicle sound generator control apparatus. The apparatus includes a sound playback unit including a sound comparison unit for comparing a frequency band-specific reference sound level data with an extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of a control unit, a sound control unit for controlling a pitch or a volume of a plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that a pedestrian'"'"'s vehicle recognition sound can be outputted.
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Citations
21 Claims
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1. An environmentally-friendly vehicle sound generator control apparatus comprising:
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a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data; a sound output unit arranged in an environmentally-friendly vehicle to output a pedestrian'"'"'s vehicle recognition sound; a sound sensing unit arranged to be spaced apart from the sound output unit to sense the pedestrian'"'"'s vehicle recognition sound output from the sound output unit; a sound source sound extraction unit for extracting and dividing the pedestrian'"'"'s vehicle recognition sound sensed by the sound sensing unit for each of a plurality of frequency bands; a control unit for storing the frequency band-specific sound data of the pedestrian'"'"'s vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian'"'"'s vehicle recognition sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling an environmentally-friendly vehicle sound generator control apparatus which includes:
- a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data;
a sound output unit arranged in an environmentally-friendly vehicle to output a pedestrian'"'"'s vehicle recognition sound;
a sound sensing unit arranged to be spaced apart from the sound output unit to sense the pedestrian'"'"'s vehicle recognition sound output from the sound output unit;
a sound source sound extraction unit for extracting and dividing the pedestrian'"'"'s vehicle recognition sound sensed by the sound sensing unit for each of a plurality of frequency bands;
a control unit for storing the frequency band-specific sound data of the pedestrian'"'"'s vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and
a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian'"'"'s vehicle recognition sound, the method comprising;a provision step of providing the environmentally-friendly vehicle sound generator control apparatus; a sensing step of sensing, by the sound sensing unit, a pedestrian'"'"'s vehicle recognition sound output from the sound output unit of an environmentally-friendly vehicle; a sound extraction and storage step of extracting and dividing the pedestrian'"'"'s vehicle recognition sound sensed by the sound sensing unit for each of a plurality of frequency bands and storing the extracted and divided pedestrian'"'"'s vehicle recognition sound in the sound storage unit of the storage unit; a sound comparison step of comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data in response to a comparison control signal of the control unit; and a sound control step of forming a plurality of frequency band-specific sample control sound source data by controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data at the sound comparison step. - View Dependent Claims (11, 12, 13, 14, 15, 16)
- a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data;
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17. An environmentally-friendly vehicle sound generator control apparatus comprising:
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a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data; a sound output unit for outputting a pedestrian'"'"'s vehicle recognition sound; a sound source sound extraction unit for extracting and dividing the pedestrian'"'"'s vehicle recognition sound output from the sound output unit for each of a plurality of frequency bands; a control unit for storing the frequency band-specific sound data of the pedestrian'"'"'s vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian'"'"'s vehicle recognition sound. - View Dependent Claims (18, 19)
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20. A method for controlling an environmentally-friendly vehicle sound generator control apparatus, which includes:
- a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data;
a sound output unit for outputting a pedestrian'"'"'s vehicle recognition sound;
a sound source sound extraction unit for extracting and dividing the pedestrian'"'"'s vehicle recognition sound output from the sound output unit for each of a plurality of frequency bands;
a control unit for storing the frequency band-specific sound data of the pedestrian'"'"'s vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and
a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian'"'"'s vehicle recognition sound, the method comprising;a provision step of providing the environmentally-friendly vehicle sound generator control apparatus; a sensing step of sensing, by the sound sensing unit, a pedestrian'"'"'s vehicle recognition sound output from the sound output unit of an environmentally-friendly vehicle; a sound extraction and storage step of extracting and dividing the pedestrian'"'"'s vehicle recognition sound sensed by the virtual sound sensing unit for each of a plurality of frequency bands and storing the extracted and divided pedestrian'"'"'s vehicle recognition sound in the sound storage unit of the storage unit; a sound comparison step of comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data in response to a comparison control signal of the control unit; and a sound control step of forming a plurality of frequency band-specific sample control sound source data by controlling the pitch or the volume of the plurality of frequency band-specific sample sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data at the sound comparison step. - View Dependent Claims (21)
- a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data;
Specification