| Patents for H04R 3 - Circuits for transducers (18,190) |
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| 05/01/2013 | CN103079146A Matching circuit for antenna of Bluetooth headset |
| 05/01/2013 | CN103079145A Novel vehicle-mounted multimedia player and implementation method thereof |
| 05/01/2013 | CN103079144A 移动终端及电子设备 The mobile terminal and the electronic device |
| 05/01/2013 | CN103079143A Pickup method and system |
| 05/01/2013 | CN103079142A Bass time delay adjusting system and bass time delay adjusting method for wireless subwoofer |
| 05/01/2013 | CN103079138A Earphone and method for realizing automatic recognition switching control of earphone |
| 05/01/2013 | CN103079134A Self-adaptive telephone receiver |
| 05/01/2013 | CN103078224A Connecting line, control method, control circuit and electronic equipment |
| 04/30/2013 | US8433076 Electronic apparatus for generating beamformed audio signals with steerable nulls |
| 04/30/2013 | US8433075 Audio system based on at least second-order eigenbeams |
| 04/25/2013 | WO2013058728A1 Speech signal enhancement using visual information |
| 04/25/2013 | WO2013058529A1 Method and apparatus for outputting an audio signal |
| 04/25/2013 | WO2013057948A1 Acoustic rendering device and acoustic rendering method |
| 04/25/2013 | WO2013032822A3 Audio adjustment system |
| 04/25/2013 | US20130101144 Acoustic system |
| 04/25/2013 | US20130101142 Setting television or radio default channel |
| 04/25/2013 | US20130101136 Wearable directional microphone array apparatus and system |
| 04/25/2013 | US20130101127 System and method for changing an activation state of an electronic device using acoustic signals |
| 04/25/2013 | US20130100989 Multi-functional weather alert communication key chain |
| 04/24/2013 | EP2584792A1 Loudspeaker line examination system |
| 04/24/2013 | EP2584326A1 Antenna for supporting an array of transducers and method for mounting such an antenna |
| 04/24/2013 | EP2583472A1 Orientation-responsive acoustic driver operation |
| 04/24/2013 | CN202907177U 麦克风电路及移动终端 Microphone circuit and the mobile terminal |
| 04/24/2013 | CN202907158U Vehicle-mounted digital-audio processing system for reducing background noise |
| 04/24/2013 | CN202907157U Apparatus used for monitoring broadcast system terminal line |
| 04/24/2013 | CN202907146U A Bluetooth loudspeaker box based on NFC technology |
| 04/24/2013 | CN202907130U Card type bluetooth sound box |
| 04/24/2013 | CN103069843A Av系统 Av System |
| 04/24/2013 | CN103069842A Circular loudspeaker array with controllable directivity |
| 04/24/2013 | CN103069297A Vehicle-direction identification device, vehicle-direction identification method, and program therefor |
| 04/24/2013 | CN103067826A Effector circuit connected with intelligent terminal |
| 04/24/2013 | CN103067825A Voice frequency changing-over management system in vehicle-mounted entertainment system and control method thereof |
| 04/24/2013 | CN103067824A Audio frequency amplifier eliminating starting noise |
| 04/24/2013 | CN103067823A Standardized multi-media personal audio frequency apparatus |
| 04/24/2013 | CN103067822A High-fidelity (Hi-Fi) audio adapter |
| 04/24/2013 | CN103067821A Method of and device for reducing voice reverberation based on double microphones |
| 04/24/2013 | CN103067820A Device and method used for providing active audio transducer protection |
| 04/24/2013 | CN103067819A Microphone amplification circuit |
| 04/24/2013 | CN103067816A Bluetooth loudspeaker box with sound effect of 360 degrees |
| 04/24/2013 | CN103067587A Device, mobile phone and method based on audio interface and used for bidirectional data transmission |
| 04/24/2013 | CN103065669A 自动音乐播放电路 Automatic music playback circuit |
| 04/24/2013 | CN103065639A Processing signals |
| 04/24/2013 | CN101331793B 声音发射和采集装置 Sound emission and collection device |
| 04/23/2013 | US8428272 Masking sound generating apparatus, masking system, masking sound generating method, and program |
| 04/23/2013 | US8424904 Steering wheel system with audio input |
| 04/23/2013 | CA2790796C Cognitive modulators |
| 04/23/2013 | CA2640967C Audio conferencing apparatus |
| 04/18/2013 | WO2013055849A1 Source dependent wireless earpiece equalizing |
| 04/18/2013 | WO2013054459A1 Howling suppression device, hearing aid, howling suppression method, and integrated circuit |
| 04/18/2013 | WO2013054458A1 Howling suppression device, hearing aid, howling suppression method, and integrated circuit |
| 04/18/2013 | WO2013054448A1 Sound processing device, sound processing method and program |
| 04/18/2013 | WO2013053063A1 Methods and apparatus to control accessories |
| 04/18/2013 | US20130095896 Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitry |
| 04/18/2013 | US20130094672 Audio mixing processing method and apparatus for audio signals |
| 04/18/2013 | US20130094664 Method and device for phase-sensitive processing of sound signals |
| 04/18/2013 | US20130094662 Wireless digital transmission system for loudspeakers |
| 04/18/2013 | US20130094661 Power management controller for drivers |
| 04/18/2013 | US20130094331 Sound generation system, ultrasonic wave emitting device, and ultrasonic wave emitting method |
| 04/18/2013 | US20130093831 Satellite Microphones for Improved Speaker Detection and Zoom |
| 04/18/2013 | CA2851379A1 Methods and apparatus to control accessories |
| 04/17/2013 | EP2580922A2 Improved parametric signal processing and emitter systems and related methods |
| 04/17/2013 | CN202889606U Sound system for electric motor car and motorcycle |
| 04/17/2013 | CN202889605U Environment-friendly type multitone contact horn product |
| 04/17/2013 | CN202889604U Wireless audio transmission device |
| 04/17/2013 | CN202889603U Audio-signal detection control circuit and audio playing device |
| 04/17/2013 | CN202889563U A USB-powered wireless microphone receiver |
| 04/17/2013 | CN103053147A Transmitter/receiver Unit And Receiver Unit |
| 04/17/2013 | CN103052004A Signal receiving device, earphone and conversion joint |
| 04/17/2013 | CN103052003A Power source switching circuit, earphone wire distributing device, multiple-wire earphone power supplying device and control method |
| 04/17/2013 | CN103051990A Self-adaptive transmitter |
| 04/17/2013 | CN103051989A Audio electronic device and audio plug recognition and operation method |
| 04/17/2013 | CN103051301A Bass boosting device, bass boosting method and sound production equipment |
| 04/17/2013 | CN101743759B Serially connected microphones |
| 04/17/2013 | CN101621727B High-fidelity (Hi-Fi) audio system and driving method thereof |
| 04/17/2013 | CN101242684B Estimating own-voice activity in a hearing-instrument system from direct-to-reverberant ratio |
| 04/16/2013 | US8423165 Digital/analogue conversion apparatus |
| 04/16/2013 | US8422696 Apparatus and method for removing noise |
| 04/16/2013 | US8422694 Source sound separator with spectrum analysis through linear combination and method therefor |
| 04/16/2013 | DE202013002391U1 Tisch mit Lautsprechern Table with speakers |
| 04/13/2013 | CA2792074A1 Proximity sensing for user detection and automatic volume regulation with sensor interruption override |
| 04/11/2013 | WO2013051084A1 Recording device, recording method, computer program for record control, playback device, playback method, and computer program for playback control |
| 04/11/2013 | WO2013050575A1 Interpolation circuit for interpolating a first and a second microphone signal |
| 04/11/2013 | US20130089222 Condenser microphone |
| 04/11/2013 | US20130089217 Arranging an Audio Signal Based on the Number of Loudspeakers |
| 04/11/2013 | US20130089213 Distributed emitter voice lift system |
| 04/11/2013 | DE102011084168A1 Bending wave loudspeaker installed in e.g. electrically propelled motor vehicle, has bending wave diaphragm that is provided with porous sound absorption layer having porosity of preset range, and which is vibrated by excitation device |
| 04/10/2013 | EP2579612A1 Speaker device, sound source simulation system, and echo canceling system |
| 04/10/2013 | EP2577989A1 Acoustic loudspeaker |
| 04/10/2013 | EP2577988A1 Hands-free unit with noise tolerant audio sensor |
| 04/10/2013 | CN202873056U Measuring device for sound pickup range of communication terminal |
| 04/10/2013 | CN202873034U Vehicle horn volume control system based on pedestrian detection |
| 04/10/2013 | CN202873033U Automobile audio volume automatic regulating device |
| 04/10/2013 | CN202873032U Sound source adaptive control system |
| 04/10/2013 | CN202873031U Bluetooth sound box control circuit |
| 04/10/2013 | CN202873030U Device capable of automatically identifying microphone pin and ground pin of audio interface, and auto-sign tool |
| 04/10/2013 | CN202873023U Bluetooth earphone capable of pressure sensing |
| 04/10/2013 | CN202873021U Earphone |
| 04/10/2013 | CN1805618B Bidirectional headphone and hands-free loudspeaker and power amplifier and control circuit for mobile audio devices |
| 04/10/2013 | CN103039061A 便携式终端设备 The portable terminal device |
| 04/10/2013 | CN103038824A Hands-free unit with noise tolerant audio sensor |