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)
03/2005
03/10/2005DE202004018291U1 Force transfer device for musical instrument, loudspeaker etc., has resilient elastic system with resonant frequency below lowest sound generated
03/09/2005EP1513134A1 Stringed instrument
03/09/2005EP1269576B1 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement
03/09/2005EP1139968B1 Device for injecting ultrasonic waves into a medium
03/09/2005CN2684502Y An optical fiber computer sound box
03/09/2005CN1592490A Electroacoustic emergy converter
03/09/2005CN1592143A Reproduction system
03/09/2005CN1591698A Flat panel monitor frame with integral speakers
03/09/2005CN1591568A Head mounted multi-sensory audio input system
03/09/2005CN1589978A 振动源驱动装置 Vibration source driving device
03/09/2005CN1192680C Plate loudspeaker with wide and free space
03/08/2005US6865334 Termination assembly for use in optical fiber hydrophone array
03/08/2005US6865280 Socket for a microphone connector
03/08/2005US6865278 Device for implanting a microphone and a pressure compensating member in a telephone watch
03/08/2005US6865277 Passenger vehicle
03/08/2005US6863152 Low profile audio speaker
03/03/2005WO2005020628A1 Microphone arrangement
03/03/2005WO2005020627A1 Speaker module assembly of multichannel headphone
03/03/2005WO2005020624A2 Ear warmer with a speaker system
03/03/2005US20050047850 Audio device post extension and angling system
03/03/2005US20050047623 Loudspeaker for line array sound system
03/03/2005US20050047622 Subwoofer with cascaded linear array of drivers
03/03/2005US20050047621 Multifunction transducer and method of driving
03/03/2005US20050047617 Flat panel monitor frame with integral speakers
03/03/2005US20050047616 Flat panel monitor frame with integral speakers
03/03/2005US20050046790 Speaker mounts for eyeglass with MP3 player
03/03/2005US20050046789 Actuator configuration for eyeglass with MP3 player
03/03/2005US20050046752 Reproduction system
03/03/2005US20050046311 Method of manufacturing ultrasound transducer device having acoustic backing
03/03/2005US20050045777 Apparatus and method for a speaker mounting system
03/03/2005US20050045415 Flush mountable vibration reducing loudspeaker mounting assembly
03/03/2005DE202004017349U1 Tensioning device for holding two walls apart such as for the sides walls of a loud speaker using a sleeve with right and left threads
03/03/2005CA2533290A1 Sound-reproducing transducer
03/02/2005EP1511356A1 Speaker
03/02/2005EP1510104A1 External ear insert for hearing comprehension enhancement
03/02/2005EP1510103A1 Headset
03/02/2005EP1510031A2 Localized audio networks and associated digital accessories
03/02/2005EP1509338A1 Acoustic-signal emitting device for vehicles
03/02/2005EP1260116A4 Folded sagnac sensor array
03/02/2005CN2682765Y USB power amplification loudspeaker connector
03/02/2005CN2682763Y Improved structure of loudspeaker sound box
03/02/2005CN2682762Y Multifunctional CD player with power amplifier seat
03/02/2005CN2682761Y Multi-purpose microphone holder
03/02/2005CN2682539Y Multimedia loudspeaker box
03/02/2005CN2682429Y Digital towline array device
03/02/2005CN1589064A Contact type microphone
03/02/2005CN1589063A Earphone type voice broadcast device
03/02/2005CN1191027C Flexible wire clipper
03/01/2005US6862360 Speaker system
03/01/2005US6862358 Piezo-film speaker and speaker built-in helmet using the same
03/01/2005US6860363 Planar acoustic waveguide
02/2005
02/24/2005WO2005018276A1 Headphone
02/24/2005WO2005018274A2 Boundary layer adapter
02/24/2005WO2005016757A2 Packaging ribbon capable of recording a digital message
02/24/2005WO2004114717A3 Improvements to loudspeaker driver assemblies
02/24/2005WO2004105176A3 Underwater antenna with electroacoustic transducers embedded in a casting compound
02/24/2005WO2004103019A3 Apparatus and method for generating acoustic energy in a receiver assembly
02/24/2005WO2003086008A3 Housing construction for rack-mounted electronic equipment
02/24/2005US20050043628 Backing material for micromachined ultrasonic transducer devices
02/24/2005US20050043056 Cellular telephone and personal digital assistant
02/24/2005US20050041830 Loudspeaker
02/24/2005US20050041829 Speaker and method of installing the same
02/24/2005US20050041820 Method of mounting and driving speakers
02/24/2005US20050041817 Ear cover with sound receiving element
02/24/2005US20050041530 Signal processing device for acoustic transducer array
02/24/2005US20050041109 Equipment for shooting of film
02/24/2005US20050039975 Speaker system
02/24/2005DE19854373B4 Verfahren zur Steuerung der Empfindlichkeit eines Mikrofons Method for controlling the sensitivity of a microphone
02/23/2005EP1509064A2 Method of mounting and driving speakers
02/23/2005EP1509063A1 Sound generating device with high frequency sound deflector array
02/23/2005EP1509062A1 Headphones with zipper
02/23/2005EP1509061A2 Speaker and method of installing the same
02/23/2005CN2681510Y A handset earphone capable of recording
02/23/2005CN2681509Y A head worn earphone
02/23/2005CN2681507Y A sound box with sound delivering direction of bass unit under horizontal line
02/23/2005CN2681506Y Full-coaxial sound box with fully separated high, middle and low tone
02/23/2005CN2681505Y Equipment with wireless sound box
02/23/2005CN2681504Y Multimedia sound box with VHF and UHF frequency modulation circuit
02/23/2005CN2681503Y Clamping structure for microphone battery case
02/23/2005CN1585567A Method of mounting and driving speakers
02/23/2005CN1585565A Loudspeaker
02/23/2005CN1585564A Method for setting loudspeaker array by second residual sequence and apparatus thereof
02/23/2005CN1585563A Technology for loudspeaker box for reducing standing-wave, having no resonant peaks and zero capacity and high fidelity and differential tuning and matching
02/23/2005CN1585562A 耳机 Headphone
02/23/2005CN1585561A Speaker and method of installing the same
02/23/2005CN1190996C Electrolytic loudspeaker assembly
02/23/2005CN1190994C Passive radiator with mass elements
02/23/2005CN1190993C Acoustic noise reducing headwared microphone and module used therefor
02/23/2005CN1190984C Multifunctional audio device
02/23/2005CN1190788C Remote Controller and earphone set connected with audio recording and playing device
02/22/2005US6859543 Speaker system and method for making the same
02/22/2005US6859542 Method of providing a hydrophobic layer and a condenser microphone having such a layer
02/22/2005US6859420 Systems and methods for adaptive wind noise rejection
02/17/2005WO2005015956A1 Voice reproducing method and reproducer using line array speaker unit
02/17/2005WO2005015951A1 Case with insert terminal and piezoelectric electroacoustic transducer using this case, process for manufacturing case with insert terminal
02/17/2005WO2005015947A1 Diffuser and speaker using the same
02/17/2005WO2005015945A1 Speaker grill
02/17/2005WO2004075159B1 Disposable sanitary cover for audio mouthpieces and receivers
02/17/2005US20050036648 Acoustic transducer with folded diaphragm
02/17/2005US20050036647 Acoustic transducer with mechanical balancing
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