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Class Information
Number: 381/394
Name: Electrical audio signal processing systems and devices > Electro-acoustic audio transducer > Mounting or support feature of housed loudspeaker > Electrical hardware
Description: Subject matter including circuit boards, terminals, terminal blocks, signal conductors (i.e., wires, leads, or cords), etc.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7583812 |
Electro-acoustic converter and electronic device using the same |
Sep. 1, 2009 |
| 7545948 |
Loudspeaker |
Jun. 9, 2009 |
| 7379558 |
Loudspeaker with integrated spider standoff ring |
May. 27, 2008 |
| 7356157 |
Loudspeaker lead wire management system |
Apr. 8, 2008 |
| 7349551 |
Lapel microphone with push to talk switch |
Mar. 25, 2008 |
| 7274797 |
Speaker housing |
Sep. 25, 2007 |
| 7043034 |
Loudspeaker with single or dual channel input selector and lockout |
May. 9, 2006 |
| 7043042 |
Button apparatus with a speaker |
May. 9, 2006 |
| 6914995 |
Portable multi-function device |
Jul. 5, 2005 |
| 6804504 |
Audio processing system |
Oct. 12, 2004 |
| 6798892 |
Rotatable removeable speaker assembly |
Sep. 28, 2004 |
| 6751332 |
Speaker |
Jun. 15, 2004 |
| 6690809 |
Microspeaker |
Feb. 10, 2004 |
| 6526152 |
Electroacoustic transducer having a moving coil and elastic holding elements for the connecting leads of the moving coil |
Feb. 25, 2003 |
| 6400825 |
Microspeaker |
Jun. 4, 2002 |
| 5982905 |
Distortion reduction in signal processors |
Nov. 9, 1999 |
| 5481618 |
Interconnection of a speaker using magnetic coupling |
Jan. 2, 1996 |
| 5481616 |
Plug-in sound accessory for portable computers |
Jan. 2, 1996 |
| 5440646 |
Molded housing with integral acoustic chamber and anti-rattle printed circuit board supports |
Aug. 8, 1995 |
| 5401907 |
Soldering terminal plate for loudspeakers |
Mar. 28, 1995 |
| 5394479 |
Sounding apparatus with surface mounting terminals |
Feb. 28, 1995 |
| 5304747 |
Speaker with motor-controlled internal baffle |
Apr. 19, 1994 |
| 5239589 |
Low profile-pin mount-printed circuit board speaker |
Aug. 24, 1993 |
| 5133018 |
Audio speaker connector employing concentrically oriented speaker contacts |
Jul. 21, 1992 |
| 4973941 |
Electronic sound generating device |
Nov. 27, 1990 |
| 4918738 |
Structural assembly for housing an acoustical system |
Apr. 17, 1990 |
| 4712246 |
Puppet speaker |
Dec. 8, 1987 |
| 4703508 |
Loudspeaker terminal strip |
Oct. 27, 1987 |
| 4691363 |
Transducer device |
Sep. 1, 1987 |
| 4295009 |
Piezoelectric audio transducer mounting and electrical connector |
Oct. 13, 1981 |
| 4284857 |
Tone generator |
Aug. 18, 1981 |
| 4234766 |
Speaker assembly |
Nov. 18, 1980 |
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