Title:
機械的音響クロスオーバ・ネットワークおよびそのトランスデューサ
Document Type and Number:
Japanese Patent JP3602792
Kind Code:
B2
Abstract:
A taut armature reciprocating impulse transducer (100) which typically provides a non-linear hardening spring response is adapted to provide a non-linear softening spring response by the addition of magnetic damping elements (106). Two or more taut armature reciprocating impulse transducers (100) can be utilized to produce a mechanical acoustic crossover network (700) which operates to produce a wide frequency response when at least one of the two taut armature reciprocating impulse transducers (100) is adapted to provide a non-linear softening spring response. The mechanical acoustic crossover network (700) allows multiple taut armature reciprocating impulse transducers (100) to be operated together from a signal input. When the mechanical acoustic crossover network (700) is enclosed in a housing (812), the mechanical acoustic crossover network (700) can be operated as a headphone to deliver an audio output.
Inventors:
Gerald E. Brinkley
John M. McKee
John M. McKee
Application Number:
JP2000539678A
Publication Date:
December 15, 2004
Filing Date:
November 20, 1998
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04R1/10; B06B1/04; H04R1/00; H04R3/12; H04R3/14; H04R9/02; H04R11/02; (IPC1-7): H04R11/02; H04R1/00; H04R1/10; H04R3/12; H04R9/02
Domestic Patent References:
| JP8275293A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Otsuka Sumie
Shinsuke Onuki
Naoki Fujimura
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Otsuka Sumie
Shinsuke Onuki
Naoki Fujimura