公开(公告)号：DE69839816D1

公开(公告)日：2008-09-11

申请号：DE69839816

申请日：1998-11-20

Applicant: MOTOROLA INC

Inventor： BRINKLEY GERALD E ,  MCKEE JOHN M

IPC: H04R1/10 ,  H04R25/00 ,  B06B1/04 ,  H04R1/00 ,  H04R3/12 ,  H04R3/14 ,  H04R5/033 ,  H04R9/02 ,  H04R9/06 ,  H04R11/02

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.

公开(公告)号：CA2139579A1

公开(公告)日：1994-01-20

申请号：CA2139579

申请日：1993-06-15

Applicant: MOTOROLA INC

Inventor： BRINKLEY GERALD E ,  HOLDEN IRVING H ,  MOONEY CHARLES W ,  MCKEE JOHN M

IPC: B06B1/04 ,  G08B6/00 ,  H04Q7/14 ,  G08B5/22 ,  H04B1/16

Abstract: A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force includes at least two planar suspension members (109), substantially parallel to each other and separated by a distance. The planar suspension member (109) includes a plurality of independent planar spring members (112) arranged regularly about a central planar region (110) within a planar perimeter region (108). The resonant armature system (109, 114, 116) further includes at least one movable mass (114) positioned between and coupled to the at least two planar suspension members (109) for resonating with the at least two planar suspension members (109) at a fundamental mode resonant frequency.

公开(公告)号：CA2139579C

公开(公告)日：1998-04-14

申请号：CA2139579

申请日：1993-06-15

Applicant: MOTOROLA INC

Inventor： MCKEE JOHN M ,  MOONEY CHARLES W ,  HOLDEN IRVING H ,  BRINKLEY GERALD E

IPC: B06B1/04 ,  G08B6/00 ,  H04Q7/14 ,  H04B1/16

Abstract: A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force comprises at least two planar suspension members (109), substantially parallel t o each other and separated by a distance. The planar suspension member (109) comprises a plurality of independent planar sprin g members (112) arranged regularly about a central planar region (110) within a planar perimeter region (108). The resonant armature system (109, 114, 116) further comprises at least one movable mass (114) positioned between and coupled to the at least two planar suspension members (109) for resonating with the at least two planar suspension members (109) at a fundamenta l mode resonant frequency.

公开(公告)号：EP1044584A4

公开(公告)日：2003-08-27

申请号：EP98960324

申请日：1998-11-20

Applicant: MOTOROLA INC

Inventor： BRINKLEY GERALD E ,  MCKEE JOHN M

IPC: H04R1/10 ,  B06B1/04 ,  H04R1/00 ,  H04R3/12 ,  H04R3/14 ,  H04R9/02 ,  H04R11/02 ,  H04R25/00 ,  H04R5/033 ,  H04R9/06

CPC classification number: H04R3/14

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.