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Class Information
Number: 340/384.7
Name: Communications: electrical > Audible indication > Electronic
Description: Subject matter under 384.1 having circuitry comprising at least a signal generator for generating an audio frequency electrical signal and a transducer means for converting the signal into audible sounds.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602308 |
Plug-in alarm notification device |
Oct. 13, 2009 |
| 7592900 |
Transporter motor alarm |
Sep. 22, 2009 |
| 7551062 |
Directional acoustic device |
Jun. 23, 2009 |
| 7528701 |
Efficiency audible alarm |
May. 5, 2009 |
| 7522031 |
Apparatus and method for controlling alarm by motion recognition in a portable terminal |
Apr. 21, 2009 |
| 7501933 |
Interactive cup assembly |
Mar. 10, 2009 |
| 7501935 |
Multi-frequency fire alarm sounder |
Mar. 10, 2009 |
| 7495581 |
Automatic marine signaling system |
Feb. 24, 2009 |
| 7474197 |
Audio generating method and apparatus based on motion |
Jan. 6, 2009 |
| 7439848 |
Handheld aid for the visually impaired |
Oct. 21, 2008 |
| 7429931 |
Proximity control of on-board processor-based model train sound and control system |
Sep. 30, 2008 |
| 7385482 |
Electro-optical device and electronic apparatus |
Jun. 10, 2008 |
| 7382233 |
Sampling playback doorbell system |
Jun. 3, 2008 |
| 7319392 |
Glassbreak alarm recorder for false alarm verification |
Jan. 15, 2008 |
| 7292136 |
Audible signal device and machines using same |
Nov. 6, 2007 |
| 7274288 |
Vehicle alarm sound outputting device and program |
Sep. 25, 2007 |
| 7267250 |
Closure with concertina element and processing means |
Sep. 11, 2007 |
| 7265655 |
Handheld computing device with power-saving notification |
Sep. 4, 2007 |
| 7256685 |
Applause device |
Aug. 14, 2007 |
| 7148789 |
Handheld device having multiple localized force feedback |
Dec. 12, 2006 |
| 7106180 |
Directional acoustic alerting system |
Sep. 12, 2006 |
| 7095313 |
Meter apparatus for vehicles |
Aug. 22, 2006 |
| 7079014 |
Digital sampling playback doorbell system |
Jul. 18, 2006 |
| 7071816 |
Audible alert device and method for the manufacture and programming of the same |
Jul. 4, 2006 |
| 7038575 |
Sound generating apparatus for use with gloves and similar articles |
May. 2, 2006 |
| 7023325 |
Programmable electronic circuit |
Apr. 4, 2006 |
| 7006001 |
Speech-emitting celebration device |
Feb. 28, 2006 |
| 6992570 |
Rest room sound producing device |
Jan. 31, 2006 |
| 6906626 |
Burglar alarm and door chime |
Jun. 14, 2005 |
| 6897766 |
Vibrator controlling circuit |
May. 24, 2005 |
| 6897779 |
Tone generation controlling system |
May. 24, 2005 |
| 6831552 |
Vocal container cap |
Dec. 14, 2004 |
| 6788188 |
Multi-function electronic horn warning system |
Sep. 7, 2004 |
| 6778078 |
Integrated emergency signaling load management system |
Aug. 17, 2004 |
| 6750759 |
Annunciatory signal generating method and device for generating the annunciatory signal |
Jun. 15, 2004 |
| 6693515 |
Sequenced audio help label |
Feb. 17, 2004 |
| 6686833 |
Compound acoustic actuator drive circuit and portable information terminal |
Feb. 3, 2004 |
| 6664887 |
System and device for measuring lapsed time for a container |
Dec. 16, 2003 |
| 6650232 |
Sounder control system |
Nov. 18, 2003 |
| 6603392 |
Control circuit for an alarm tone generator |
Aug. 5, 2003 |
| 6559758 |
Multi-tone warning sounder |
May. 6, 2003 |
| 6545594 |
Audio closure |
Apr. 8, 2003 |
| 6538565 |
Applause device |
Mar. 25, 2003 |
| 6522244 |
Children's ride-on vehicle with audiovisual device |
Feb. 18, 2003 |
| 6505734 |
Container with light and sound emitting function |
Jan. 14, 2003 |
| 6489885 |
Digital horn for a motor vehicle |
Dec. 3, 2002 |
| 6476711 |
Sounding-body driving circuit and operating sound generating apparatus using the same |
Nov. 5, 2002 |
| 6433673 |
Digital enunciator, process and communication system employing same |
Aug. 13, 2002 |
| 6426695 |
Volume control for an automobile turn signal |
Jul. 30, 2002 |
| 6414589 |
Apparatus for remotely controlling auxiliary doorbell chime from doorbell push button |
Jul. 2, 2002 |
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