Title:
VEHICLE WARNING SOUND GENERATING DEVICE AND VEHICLE WARNING SOUND GENERATING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/155021
Kind Code:
A1
Abstract:
A noise level calculation unit (122) calculates an ambient noise level around a vehicle (CR) on the basis of the results of the sound picked up by a sound pickup unit (150). Furthermore, on the basis of the results of imaging performed by an imaging unit (160), a distance calculation unit (123) determines the presence or absence of a person whose attention is to be drawn, and calculates the distance to the person whose attention is to be drawn if a person whose attention is to be drawn is present. If the distance to the person whose attention is to be drawn is not less than a reference distance, a level control unit (124) calculates a new corrected level value on the basis of the noise level, and subsequently, calculates a level adjustment value. Meanwhile, if the distance to the person whose attention is to be drawn is less than the reference distance, the level control unit (124) adopts, irrespective of the noise level, the corrected level value at the point in time when the reference distance was most recently reached, and calculates a level adjustment value. The output sound volume of pseudo engine sound is adjusted on the basis of the level adjustment value thus calculated. As a result, it is possible to generate pseudo engine sound which can contribute to traffic safety.
Inventors:
OMURA, Maki (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
大村 真希 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
OKAMOTO, Junpei (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
岡本 旬平 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
大村 真希 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
OKAMOTO, Junpei (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
岡本 旬平 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
Application Number:
JP2010/059645
Publication Date:
December 15, 2011
Filing Date:
June 08, 2010
Export Citation:
Assignee:
PIONEER CORPORATION (1-1 Shin-ogura, Saiwai-ku Kawasaki-sh, Kanagawa 31, 〒2120031, JP)
パイオニア株式会社 (〒31 神奈川県川崎市幸区新小倉１番１号 Kanagawa, 〒2120031, JP)
OMURA, Maki (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
大村 真希 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
OKAMOTO, Junpei (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
パイオニア株式会社 (〒31 神奈川県川崎市幸区新小倉１番１号 Kanagawa, 〒2120031, JP)
OMURA, Maki (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
大村 真希 (〒55 埼玉県川越市山田字西町２５番地１パイオニア株式会社川越事業所内 Saitama, 〒3508555, JP)
OKAMOTO, Junpei (Kawagoe Plant 25-1, Aza-Nishimachi, Yamada, Kawagoe-sh, Saitama 55, 〒3508555, JP)
International Classes:
B60Q5/00; G10K15/04
Attorney, Agent or Firm:
SHIBATA, Itsuo (TAF Kyobashi Bldg. 5th Floor, 19-4 Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
Claims: