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Class Information
Number: 381/77
Name: Electrical audio signal processing systems and devices > One-way audio signal program distribution
Description: Subject matter for delivering the output of an audio signal source to a remote location, or to a plurality of electric-signal-to-sound transducers.










Sub-classes under this class:

Class Number Class Name Patents
381/78 Drive-in 17
381/80 Multiple channel 167
381/79 Near field 152
381/82 Public address system 129


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8712072 Multi-wired antenna for mobile apparatus Apr. 29, 2014
8693713 Virtual audio environment for multidimensional conferencing Apr. 8, 2014
8682004 Positional audio in a vehicle-to-vehicle network Mar. 25, 2014
8675887 Wireless illuminative speaker system and wireless illuminative speaker thereof Mar. 18, 2014
8677173 Method and circuit for trimming an internal oscillator of a USB device Mar. 18, 2014
8675886 Method and apparatus for providing a splitter in a notification system Mar. 18, 2014
8675882 Sound signal processing device and method Mar. 18, 2014
8666094 Drive control method of electrostatic-type ultrasonic transducer, electrostatic-type ultrasonic transducer, ultrasonic speaker using electrostatic-type ultrasonic transducer, audio signal repr Mar. 4, 2014
8654988 Synchronization of signals for multiple data sinks Feb. 18, 2014
8654995 Audio control system for a vehicle Feb. 18, 2014
8649523 Methods and systems using a compensation signal to reduce audio decoding errors at block boundaries Feb. 11, 2014
8638945 Apparatus and method for encoding/decoding signal Jan. 28, 2014
8634572 Method and apparatus for ambient sound therapy user interface and control system Jan. 21, 2014
8625814 Earphone antenna of a portable terminal Jan. 7, 2014
8620005 All-digital speaker system device Dec. 31, 2013
8620010 Loudspeaker device Dec. 31, 2013
8615091 System for accomplishing bi-directional audio data and control communications Dec. 24, 2013
8611186 Sound image localization apparatus Dec. 17, 2013
8611190 Bio-acoustic wave energy transducer Dec. 17, 2013
8612187 Test platform implemented by a method for positioning a sound object in a 3D sound environment Dec. 17, 2013
8600530 Method for determining an audio data spatial encoding mode Dec. 3, 2013
8600071 Vehicle existence informing device and method for informing existence of a vehicle Dec. 3, 2013
8594340 Transmitter Nov. 26, 2013
8588432 Apparatus and method for authorizing reproduction and controlling of program transmissions at locations distant from the program source Nov. 19, 2013
8582789 Hearing enhancement systems Nov. 12, 2013
8583443 Recording and reproducing apparatus Nov. 12, 2013
8577053 Ticketing and/or authorizing the receiving, reproducing and controlling of program transmissions by a wireless device that time aligns program data with natural sound at locations distant from Nov. 5, 2013
8571236 Volume control system, controller, and amplifying apparatus Oct. 29, 2013
8559655 Efficiency optimized audio system Oct. 15, 2013
8559650 Circuit apparatus and method for detecting earphone in portable terminal Oct. 15, 2013
8553892 Processing a multi-channel signal for output to a mono speaker Oct. 8, 2013
8538036 Directed acoustic sound system Sep. 17, 2013
8532311 Digital audio communication and control in a live performance venue Sep. 10, 2013
8527021 Entertainment system including selectable IR receive and transmit codes and day/night picture modes Sep. 3, 2013
8520870 Transmission device and transmission method Aug. 27, 2013
8520858 Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources Aug. 27, 2013
8498726 Bi-directional broadcasting system for a small space Jul. 30, 2013
8494176 Information providing system Jul. 23, 2013
8488805 Providing background audio during telephonic communication Jul. 16, 2013
8483402 System and method for directionally radiating sound Jul. 9, 2013
8472633 Detection of device configuration Jun. 25, 2013
8462961 Method and system for broadcasting audio transmissions over a network Jun. 11, 2013
8457324 Directional speaker system Jun. 4, 2013
8452433 Path setting method and apparatus for audio system, and audio system May. 28, 2013
8452026 Mobile microphone system and method May. 28, 2013
8452025 Power supply circuit including voltage regulator and headphone driving circuit employing the same May. 28, 2013
8428273 Wireless digital transmission system for loudspeakers Apr. 23, 2013
8422692 Audio distribution system Apr. 16, 2013
8416962 Audio mixing/reproducing device Apr. 9, 2013
8411875 Speaker control via audio connection Apr. 2, 2013

1 2 3 4 5 6 7 8 9 10










 
 
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