bibliography on 1/f noise (quotes)

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A Bibliograph on 1/f Noise (quotes)

"An air conditioner for exchanging heat from a refrigerant to the outside and adjusting at least one of room temperature and humidity to desired temperature and humidity and having a 1/f fluctuation function for controlling an air supplying means for supplying conditioned air to the room so as to vary the air supplying amount in multiple levels corresponding to a designated reference air amount and irregularly. A reference air amount of the air supplying means can be designated and there is an air amount control for controlling the air supplying means corresponding to the designated reference air amount, and a fluctuation width designates a fluctuation width (volume of the air amount) corresponding to the air amount designated. When the 1/f fluctuation function is employed, the fundamental functions (coolness, warmness, and so forth) of the air conditioner are improved. In addition, the noise of the air conditioner is reduced and the comfort of the user is improved. " Patent 5657640. Filed: Sep 14, 1995; Issued: Aug 19, 1997
"I work with colored noise occasionally, and recently made several tapes utilizing psychoacoustic noise effects. ... Pink Noise: This noise has equal energy PER OCTAVE. This means that the volume decreases logarithmically with frequency. Usually pink noise is made by low-pass filtering white noise. For comparison, pink noise will have the same sound amplitude from 100-200Hz that it does from 200-400Hz or 10,000-20,000Hz. Pink noise sounds more natural than white noise (it sounds like rushing water or ocean surf) and is quite relaxing. It's often used for ambience in electronic music, and as a test signal for "tuning" sound reenforcement systems (many equalizers and audio spectrum analyzers have built-in pink noise generators). ..." An online post by Mark Thompson (December 27, 1989). The original post can be found http://mv.lycaeum.org/M2/noise_ahf.html
"The triode was invented by Lee de Forest in 1907, and soon afterwards the first amplifiers were built. By 1921 the 'thermionic tube' amplifiers were so developed that C.A. Hartmann made the first courage experiment to verify Schottky's formula for ths shot noice spectral density. Hartmann's attempt failed, and it was finally J.B. Johnson who successfully measured the predicted white noise spectrum. However Johnson also measured an unexpected 'flicker noise' at low frequency... and shortly thereafter W. Schottly tried to provide a theoretical explanation. Schottky's explanation was based on the physics of electron transport inside the vacumm tube, but in the years that followed Johnson's discovery of flicker noise it was found that this strange noise appeared again and again in many different electrical deviced." from Edoardo Milotti's preprint 1/f noise: a pedagogical review http://arxiv.org/abs/physics/0204033


	front page links glossary quotes 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 60s 50s 40s 30s 20s 10s	A Bibliograph on 1/f Noise (quotes) "An air conditioner for exchanging heat from a refrigerant to the outside and adjusting at least one of room temperature and humidity to desired temperature and humidity and having a 1/f fluctuation function for controlling an air supplying means for supplying conditioned air to the room so as to vary the air supplying amount in multiple levels corresponding to a designated reference air amount and irregularly. A reference air amount of the air supplying means can be designated and there is an air amount control for controlling the air supplying means corresponding to the designated reference air amount, and a fluctuation width designates a fluctuation width (volume of the air amount) corresponding to the air amount designated. When the 1/f fluctuation function is employed, the fundamental functions (coolness, warmness, and so forth) of the air conditioner are improved. In addition, the noise of the air conditioner is reduced and the comfort of the user is improved. " Patent 5657640. Filed: Sep 14, 1995; Issued: Aug 19, 1997 "I work with colored noise occasionally, and recently made several tapes utilizing psychoacoustic noise effects. ... Pink Noise: This noise has equal energy PER OCTAVE. This means that the volume decreases logarithmically with frequency. Usually pink noise is made by low-pass filtering white noise. For comparison, pink noise will have the same sound amplitude from 100-200Hz that it does from 200-400Hz or 10,000-20,000Hz. Pink noise sounds more natural than white noise (it sounds like rushing water or ocean surf) and is quite relaxing. It's often used for ambience in electronic music, and as a test signal for "tuning" sound reenforcement systems (many equalizers and audio spectrum analyzers have built-in pink noise generators). ..." An online post by Mark Thompson (December 27, 1989). The original post can be found http://mv.lycaeum.org/M2/noise_ahf.html "The triode was invented by Lee de Forest in 1907, and soon afterwards the first amplifiers were built. By 1921 the 'thermionic tube' amplifiers were so developed that C.A. Hartmann made the first courage experiment to verify Schottky's formula for ths shot noice spectral density. Hartmann's attempt failed, and it was finally J.B. Johnson who successfully measured the predicted white noise spectrum. However Johnson also measured an unexpected 'flicker noise' at low frequency... and shortly thereafter W. Schottly tried to provide a theoretical explanation. Schottky's explanation was based on the physics of electron transport inside the vacumm tube, but in the years that followed Johnson's discovery of flicker noise it was found that this strange noise appeared again and again in many different electrical deviced." from Edoardo Milotti's preprint 1/f noise: a pedagogical review http://arxiv.org/abs/physics/0204033