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Class Information
Number: 381/123
Name: Electrical audio signal processing systems and devices > Switching
Description: Subject matter where there is the making, breaking or changing connections in an electrical circuit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602927 |
Guitar amplifier with channel-dedicated power switching |
Oct. 13, 2009 |
| 7590253 |
Hearing aid having switchable first and second order directional responses |
Sep. 15, 2009 |
| 7564983 |
Audio playback device capable of independent operations in dual modes |
Jul. 21, 2009 |
| 7561698 |
Auto shutoff for portable audio devices |
Jul. 14, 2009 |
| 7558392 |
Signal switching apparatus and program |
Jul. 7, 2009 |
| 7519190 |
Circuit for reducing pulse noise caused at switching of an analog audio processing circuit |
Apr. 14, 2009 |
| 7515722 |
System and method for processing multiple audio signals and for controlling multiple devices with control signals |
Apr. 7, 2009 |
| 7505601 |
Efficient spatial separation of speech signals |
Mar. 17, 2009 |
| 7499553 |
Sound event detector system |
Mar. 3, 2009 |
| 7486138 |
Bipolar audio signal switch |
Feb. 3, 2009 |
| 7483539 |
Automobile audio system |
Jan. 27, 2009 |
| 7469051 |
Method and apparatus for maintaining audio level preferences in a communication device |
Dec. 23, 2008 |
| 7466832 |
Seatback audio controller |
Dec. 16, 2008 |
| 7457423 |
Multi-accessory vehicle audio system, switch and method |
Nov. 25, 2008 |
| 7436971 |
Mixing signal-path setting apparatus and program |
Oct. 14, 2008 |
| 7412064 |
Presence control for guitar amplifier |
Aug. 12, 2008 |
| 7390960 |
Electronic signal processor |
Jun. 24, 2008 |
| 7389153 |
Enabling separate chat and selective enablement of microphone |
Jun. 17, 2008 |
| 7366309 |
Robot |
Apr. 29, 2008 |
| 7366577 |
Programmable analog input/output integrated circuit system |
Apr. 29, 2008 |
| 7356154 |
Audio player activated by greeting card retraction |
Apr. 8, 2008 |
| 7349546 |
System and method for identifying a headset type in an electrical device |
Mar. 25, 2008 |
| 7340070 |
Voice-data processing circuit and voice-data processing method |
Mar. 4, 2008 |
| 7308188 |
Audio reproducing apparatus |
Dec. 11, 2007 |
| 7305097 |
Controlling fading and surround signal level |
Dec. 4, 2007 |
| 7269265 |
Method for switching audio signals and the device of the same |
Sep. 11, 2007 |
| 7254415 |
Portable wireless terminal, method of outputting sound, and method of picking up sound |
Aug. 7, 2007 |
| 7230557 |
Audio codec adapted to dual bit-streams and methods for use therewith |
Jun. 12, 2007 |
| 7227964 |
Audio signal processing apparatus and audio signal processing method |
Jun. 5, 2007 |
| 7228271 |
Telephone apparatus |
Jun. 5, 2007 |
| 7203326 |
Noise suppressing apparatus |
Apr. 10, 2007 |
| 7190798 |
Entertainment system for a vehicle |
Mar. 13, 2007 |
| 7142679 |
Muting circuit for computer having dual audio boards |
Nov. 28, 2006 |
| 7130435 |
Component selection control system |
Oct. 31, 2006 |
| 7123729 |
Dual use of an integrated circuit pin and the switching of signals at said pin |
Oct. 17, 2006 |
| 7110839 |
Audio system for minimizing the chance that high power audio signals may be directed to a headphone jack |
Sep. 19, 2006 |
| 7103189 |
Power supply noise immunity for audio amplifier |
Sep. 5, 2006 |
| 7099483 |
Sound control system, sound control device, electronic device, and method for controlling sound |
Aug. 29, 2006 |
| 7092534 |
Method and system for reducing pop noise of a sound broadcasting instrument |
Aug. 15, 2006 |
| 7088827 |
Reconfigurable speaker system |
Aug. 8, 2006 |
| 7043034 |
Loudspeaker with single or dual channel input selector and lockout |
May. 9, 2006 |
| 7039205 |
Techniques for audio transducer switching under programmatic and off hook interrupt control |
May. 2, 2006 |
| 7027601 |
Perceptual speaker directivity |
Apr. 11, 2006 |
| 7006645 |
Audio reproduction apparatus |
Feb. 28, 2006 |
| 6985592 |
Multipurpose earphone set |
Jan. 10, 2006 |
| 6983053 |
Method of selecting a frequency band of an output audio signal by a computer |
Jan. 3, 2006 |
| 6975735 |
Sound collecting device minimizing electrical noise |
Dec. 13, 2005 |
| 6970752 |
Method and apparatus for detecting switch closures |
Nov. 29, 2005 |
| 6954675 |
Audio chip with switchable audio output pathways |
Oct. 11, 2005 |
| 6937734 |
Mute apparatus and mute method |
Aug. 30, 2005 |
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