Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 1 - Details of transducers
Patents for H04R 1 - Details of transducers (42,173)
05/2005
05/19/2005US20050105748 Integrated flexible display and speaker apparatus and method
05/19/2005US20050105747 Card sound device and electronic apparatus having same
05/19/2005US20050105746 Passive and active escapement for sound resonance
05/19/2005US20050105745 Dual-element speaker device
05/19/2005US20050105744 Method of improving speaker sound quality in vehicle by controlling speaker angle
05/19/2005DE10347592A1 Loudspeaker system with symmetrical acoustic compression, has convex body arranged between two similar loudspeakers arranged to face each other
05/18/2005EP1531648A2 Speaker device
05/18/2005CN2701202Y Loudspeaker fixing structure
05/18/2005CN2701180Y A novel telephone microphone
05/18/2005CN1617633A Frequency lowering method for plane piezoelectric horn actuator
05/18/2005CN1617632A Head acoustic device and sound track reproducing method
05/18/2005CN1617631A Horn speaker with high air flow efficiency
05/18/2005CN1617630A Radio microphone transceiver with voice code control voice silencing function
05/18/2005CN1617629A Porting
05/18/2005CN1202693C Semiconductor electret capacitor microphone
05/17/2005US6895099 Compact speaker for portable phone
05/17/2005US6895097 Planar type speaker and system using it
05/17/2005CA2184273C A low profile transducer for intravascular ultrasound imaging and method for mounting
05/12/2005WO2005043952A1 Sound generating transducer
05/12/2005WO2005043951A1 Ergonomic ear piece
05/12/2005WO2005043950A2 Modular personal audio set and system
05/12/2005WO2005043871A1 A mobile device with a combined attachment and acoustic port
05/12/2005WO2005008193A3 Acoustic vector sensor
05/12/2005WO2004103018A3 Apparatus and method for generating acoustic energy in a receiver assembly
05/12/2005WO2004093487A3 Systems and methods for interference suppression with directional sensing patterns
05/12/2005US20050100187 Speaker box mounting structure
05/12/2005US20050100186 Head worn entertainment and/or communication device
05/12/2005US20050100185 Personal communications earpiece
05/11/2005EP1530401A2 Method of mounting condenser microphone on main PCB and condenser microphone adapted for the same
05/11/2005EP1530348A1 Optical switch for headset
05/11/2005EP1529417A1 Loudspeaker
05/11/2005CN2699608Y Visible angle variable sound equipment
05/11/2005CN1615050A Method of mounting condenser microphone on main PCB and condenser microphone adapted for the same
05/11/2005CN1201632C Voice-to-remaining audio (VRA) interactive hearing aid & auxiliary equipment
05/11/2005CN1201631C Loudspeaker system
05/10/2005US6892082 Cellular telephone and personal digital assistance
05/10/2005US6891957 Versatile speaker base
05/10/2005US6891097 Damping element
05/06/2005WO2005041590A1 Array for rendering image and sound
05/05/2005US20050096107 Mobile telephone
05/05/2005US20050096103 Mobile device with a combination attachment and acoustic port
05/05/2005US20050094843 Sound generating transducer
05/05/2005US20050094842 Speaker device and method for manufacturing the same
05/05/2005US20050094839 Earpiece set for the wireless communication apparatus
05/05/2005US20050094837 Porting
05/05/2005US20050094836 Waveguide modeling and design system
05/05/2005US20050094832 Method of mounting condenser microphone on main PCB and condenser microphone adapted for the same
05/05/2005US20050094829 System and method for achieving extended low-frequency response in a loudspeaker system
05/05/2005US20050094824 Audio-signal detecting device
05/05/2005US20050094819 Infrared emitter
05/05/2005US20050091739 Retractable rotating spa speaker system
05/04/2005EP1528836A2 Porting and heat removal in acoustic devices
05/04/2005EP1528760A1 Mobile telephone
05/04/2005EP1528608A2 Bending actuator having beam-deflection limiting structure
05/04/2005EP1527601A1 Method of and system for controlling the operation of a video system
05/04/2005DE202005001911U1 Bluetoothkommunikationskopfhörer mit demontierbarem Batterienmodul Bluetooth communication headset with detachable battery module
05/04/2005CN2697992Y Extensional player for MP3 device
05/04/2005CN1613272A Equaliser, or phase plug, for electro-acoustic transducers
05/04/2005CN1612587A Integrated video-audio sensor
05/04/2005CN1612577A Mobile telephone
05/04/2005CN1200592C Head earphone
05/04/2005CN1200547C Electroacoustic changer with back terminal
05/04/2005CN1200525C Supersonic-wave emitter/receiver
05/03/2005US6888946 High frequency loudspeaker
05/03/2005US6886658 Loudspeaker enclosure system
05/03/2005CA2377667C Earphone without impulse noise and surroundings blockade
05/03/2005CA2194641C In-ear type earphone having an ear hanger
04/2005
04/28/2005WO2005039236A1 Resonance box
04/28/2005WO2005039235A1 Speaker, speaker module, and electronic apparatus using the speaker module
04/28/2005WO2005039234A2 Protective cover assembly
04/28/2005WO2005039041A1 Microphone preamplifier
04/28/2005US20050090295 Communication headset with signal processing capability
04/28/2005US20050089186 Dockable earpiece for portable phones
04/28/2005US20050089185 Headset ear seal employing phase change material
04/28/2005US20050089184 Speaker cabinet with increased air circulation efficiency
04/28/2005US20050089182 Compact surround-sound system
04/28/2005US20050089178 Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system
04/28/2005US20050087392 Loudspeaker enclosure
04/27/2005EP1526756A2 Microphone apparatus, reproducing apparatus, and image taking apparatus
04/27/2005EP1526754A1 Speaker cabinet with increased air circulation efficiency
04/27/2005EP1525774A1 Sound transducer comprising a small rear volume chamber
04/27/2005EP1182971A4 Ultrasonic transducer with improved compressive loading
04/27/2005EP1173100A4 Apparatus and method for tuning ultrasonic transducers
04/27/2005EP1068770B1 Acoustic device relying on bending wave action
04/27/2005EP0947121B1 Device including a built-in electroacoustic transducer for optimum speech reproduction
04/27/2005CN2696251Y Hi-Fi Loudspeaker
04/27/2005CN2696212Y Earphone device of transmitting fixed sound source and its radio receiving module
04/27/2005CN1611094A Electronic apparatus and audio-frequency signal output method for electronic apparatus
04/27/2005CN1610928A Light controller and system for sensitivity control
04/27/2005CN1610449A Microphone apparatus, reproducing apparatus, and image taking apparatus
04/27/2005CN1610448A Audio frequency broadcasting device with loudspeaker
04/27/2005CN1199361C Wireless microphone
04/26/2005US6885753 Communication device using bone conduction
04/26/2005US6885751 Pressure-gradient microphone capsule
04/26/2005US6885295 Reversing alarm
04/26/2005US6883693 Knapsack with stereophonic reproducing kit
04/21/2005WO2005036922A1 Communication headset with signal processing capability
04/21/2005US20050084131 Loudspeakers
04/21/2005US20050084129 Headphone
04/21/2005US20050084128 Directional microphone
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