Title:
FLUCTUATION DRIVING DEVICE FOR AROMA GENERATION UNIT
Document Type and Number:
Japanese Patent JPH05173648
Kind Code:
A
Abstract:
PURPOSE:To maintain freshness at all times without making the sense of small dull and to prevent a feeling of comfortableness and pleasure from decreasing by controlling the kind, intensity, etc., of aroma on the basis of a physical quantity having 1/f relation with respect to frequency (f). CONSTITUTION:A random generating means A1 consists of a clock oscillator 1, a random signal generating shift register 2, an EXOR gate 3, and a decoder 4 and generates a random signal whose frequency spectrum intensities have the 1/f relation with respect to the frequency (f). The setting of the intensity of aroma is adjusted by the variable resistance of a control means B1 and when an electronic switch 6 is turned ON, a corresponding solenoid 9 is turned ON to supply aroma having corresponding intensity. The random binary number of the shift register 1 is decoded by a decoder 4 to excite a solenoid corresponding to the number. Consequently, the aroma which gives a feeling of natural comfortableness and has intensity with fluctuations is obtained.
Inventors:
SUGIMOTO GUNJI
ARAKAWA HIDEO
ISHIHARA TOSHIKAZU
SUGIURA MASAHIRO
TAKAHASHI KATSUHIKO
ARAKAWA HIDEO
ISHIHARA TOSHIKAZU
SUGIURA MASAHIRO
TAKAHASHI KATSUHIKO
Application Number:
JP12552792A
Publication Date:
July 13, 1993
Filing Date:
April 17, 1992
Export Citation:
Assignee:
TOYOTA CENTRAL RES & DEV
International Classes:
A61L9/12; G05B19/02; G05D21/00; (IPC1-7): A61L9/12; G05D21/00
Attorney, Agent or Firm:
High Katsuhiko Hashi