公开(公告)号：FI970720A0

公开(公告)日：1997-02-20

申请号：FI970720

申请日：1997-02-20

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C20060101 ,  B29C

公开(公告)号：DE68920742T2

公开(公告)日：1995-09-07

申请号：DE68920742

申请日：1989-06-02

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C47/04 ,  B29C47/00 ,  B29C47/06 ,  B29C47/52 ,  B29C47/80 ,  B29C48/33

公开(公告)号：FI83184C

公开(公告)日：1991-06-10

申请号：FI882653

申请日：1988-06-06

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C47/04 ,  B29C47/00 ,  B29C47/06 ,  B29C47/52 ,  B29C47/80 ,  B29C48/33 ,  B29C47/48

公开(公告)号：AT61706T

公开(公告)日：1991-03-15

申请号：AT85850364

申请日：1985-11-12

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: H03H7/30 ,  B32B5/18 ,  B32B7/02 ,  H02N2/00 ,  H03H9/17 ,  H04R3/00 ,  H04R19/00 ,  H04R23/00 ,  H04R31/00

Abstract: The present invention concerns a dielectric film for converting the energy of an electric field or of a magnetic field into mechanical work, orfor converting mechanical work into electric energy, and a procedure for manufacturing the film. The film of the invention consists of a homogeneous, e.g. a film layer (A) foamed to a structure (C) of full-cell type and which has been oriented by stretching it in two dimensions and coated at least in part on one side or on both sides with an electrically conductive layer (B). The film is manufactured by extruding the plastic which has been made to be foams able, into tubular shape, performing intermediate cooling of the tube and reheating it, expanding the heated tube in two dimensions, metallizing the outer surfaces and cutting the tube open to become a film.

公开(公告)号：FI76731C

公开(公告)日：1988-12-12

申请号：FI870550

申请日：1987-02-10

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C47/08 ,  B29C47/52

公开(公告)号：FI884498A0

公开(公告)日：1988-09-30

申请号：FI884498

申请日：1988-09-30

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C20060101 ,  B29C

公开(公告)号：FI76731B

公开(公告)日：1988-08-31

申请号：FI870550

申请日：1987-02-10

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C47/08 ,  B29C47/52

公开(公告)号：FI871920A0

公开(公告)日：1987-04-29

申请号：FI871920

申请日：1987-04-29

Applicant: KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: B29C20060101 ,  B29C

公开(公告)号：DE69732801T2

公开(公告)日：2006-04-06

申请号：DE69732801

申请日：1997-11-27

Applicant: PANPHONICS OY TAMPERE ,  KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: G10K11/178 ,  A61F11/14

Abstract: The invention relates to a method and an apparatus for sound processing, where sound is attenuated by measuring it and by producing with an actuator a sound field of opposite sign in view of the original sound field. A desired value signal (I) is supplied to the actuator which reproduces the signal. To the actuator is attached a sensor, measuring sound pressure, and the difference of the sensor signal (B) and the desired value signal (I) is applied as high gain feedback to the actuator. As a consequence, sound not pertaining to the desired value signal (I) can be attenuated in a simple manner, and sound in accordance with the desired value signal (I) can be produced simultaneously with the same apparatus.

公开(公告)号：AT291267T

公开(公告)日：2005-04-15

申请号：AT97913229

申请日：1997-11-27

Applicant: PANPHONICS OY ,  KIRJAVAINEN KARI

Inventor： KIRJAVAINEN KARI

IPC: A61F11/14 ,  G10K11/178

Abstract: The invention relates to a method and an apparatus for sound processing, where sound is attenuated by measuring it and by producing with an actuator a sound field of opposite sign in view of the original sound field. A desired value signal (I) is supplied to the actuator which reproduces the signal. To the actuator is attached a sensor, measuring sound pressure, and the difference of the sensor signal (B) and the desired value signal (I) is applied as high gain feedback to the actuator. As a consequence, sound not pertaining to the desired value signal (I) can be attenuated in a simple manner, and sound in accordance with the desired value signal (I) can be produced simultaneously with the same apparatus.