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)
07/2003
07/17/2003US20030134603 Miniature vocal transmitter device
07/17/2003US20030133586 Loudspeaker with a wire stablizer
07/17/2003US20030133585 Hands-free kit for mobile phone
07/17/2003US20030133584 Constant coverage waveguide
07/17/2003US20030133581 User configurable multi-component speaker panel
07/17/2003US20030133577 Microphone unit and sound source direction identification system
07/17/2003US20030132056 Manifold for a horn loudspeaker and method
07/17/2003US20030131721 Electric stringed musical instrument having frame body and percussion unit
07/17/2003DE20306827U1 Loudspeaker funnel e.g. for railway vehicle, has grid at its funnel opening and openings in the funnel wall near the edge of the funnel
07/16/2003CN1430863A Acoustic transmission connection, headset with acoustic transmission connection, and uses of acoustic transmission connection
07/16/2003CN1430846A Sound-transmitting apparatus
07/15/2003US6594371 Microphone boom assembly
07/15/2003US6594367 Super directional beamforming design and implementation
07/15/2003US6594198 Digital signal demodulator calibration system and method for optical hydrophones
07/15/2003US6593680 Ultrasonic wave transmitter/receiver
07/10/2003WO2003056875A1 Sound effects microphone
07/10/2003WO2003056874A1 Echo-eliminating microphone
07/10/2003WO2003056545A1 Electropneumatic horn
07/10/2003WO2002074006A3 Speaker arrangement
07/10/2003WO2002007477A3 Audio headset
07/10/2003US20030130852 Headset with radio communication function for speech processing system using speech recognition
07/10/2003US20030130016 Headset with radio communication function and communication recording system using time information
07/10/2003US20030128849 Acoustic anti-transient-masking transform system for compensating effects of undesired vibrations and a method for developing thereof
07/10/2003US20030128847 Transducer for sensing body sounds
07/10/2003US20030128503 Display apparatus
07/10/2003US20030127572 Microphone support system
07/10/2003US20030127280 System for integrating mid-range and high-frequency acoustic sources in multi-way loudspeakers
07/10/2003DE20301699U1 Microphone/loudspeaker for acting as a coil consists of a compact disk/DVD with a spiral-shaped notching/groove on an aluminum/gold/silver layer made deep enough to isolate the layer electrically
07/10/2003CA2469448A1 Sound effects microphone
07/10/2003CA2469447A1 Echo-eliminating microphone
07/09/2003EP1326477A2 Three-way speaker system
07/09/2003EP1325727A2 Simulated wave massage
07/09/2003EP1325662A2 Cloth
07/09/2003EP1325482A1 Audible communication system
07/09/2003CN2560185Y Microphone for regulating sound volume of power amplifier
07/08/2003US6590993 Panel-shaped loudspeaker
07/08/2003US6590992 Speaker device
07/08/2003US6590989 Desktop microphone base with a shock absorbing member
07/08/2003US6590988 Microphone apparatus
07/08/2003US6588544 Speaker box with molded plastic end caps
07/08/2003CA2165389C Press-fit ear wax barrier
07/03/2003WO2003055269A1 Microphone with an easy-replaceable, identifying and characteristic external element
07/03/2003WO2003055112A1 Microphone apparatus built in computer network
07/03/2003WO2001093629A3 Cross-fired multiple horn loudspeaker system
07/03/2003US20030125096 Cellular telephone, personal digital assistant, and pager unit with capability of short range radio frequency transmissions
07/03/2003US20030125081 Cellular telephone and personal digital assistant
07/03/2003US20030124271 Vehicle trim panel/radiator element system
07/03/2003US20030123692 Speaker
07/03/2003US20030123689 Microphone holder
07/03/2003US20030123688 Sound-damping laminate system
07/03/2003US20030123684 Three-way speaker system having translatable midrange/tweeter module
07/03/2003US20030123679 In-wall loudspeaker
07/03/2003US20030123673 Electronic sound equipment
07/03/2003US20030122658 Compound acoustic actuator drive circuit and portable information terminal
07/03/2003US20030121402 Electronic keyboard instrument and tone reproduction method therefor
07/03/2003US20030121331 Ultrasonic transceiver and ultrasonic clearance sonar using the same
07/02/2003EP1323332A1 Dual-chamber loudspeaker
07/02/2003EP1323321A2 An earphone for a cellular phone
07/02/2003EP1322268A1 Ear terminal for noise control
07/02/2003EP1201102B1 Loudspeaker
07/02/2003EP1000524B1 An electrical contact free microphone attachment for a flip-type radio phone
07/02/2003EP0692169B1 Unidirectional ear microphone with multiple openings
07/02/2003CN2559053Y PDA with radio function
07/02/2003CN1428038A Headset
07/02/2003CN1427987A Method and apparatus for adapting primary content of audio and remaining portion of audio content in digital audio production process
07/02/2003CN1427633A Vibration actuator for pager
07/02/2003CN1427621A Electronic device including loudspeaker
07/02/2003CN1112882C Mounting foot device for Hi-Fi equipment
07/02/2003CA2415066A1 Simulated wave massage
07/01/2003US6587682 Signal routing for reduced power consumption in a conferencing system
07/01/2003US6587571 Speaker
07/01/2003US6587569 Differential-pressure microphone
07/01/2003US6587564 Resonant chamber sound pick-up
07/01/2003US6587397 Electroacoustic transducer
07/01/2003US6585077 Sound-producing device with acoustic waveguide
06/2003
06/26/2003WO2003053097A1 Dual chamber acoustic enclosure with triple venting using passive radiators
06/26/2003WO2003053096A1 Headset
06/26/2003WO2003051530A1 Micromachined ultrasound transducer and method for fabricating same
06/26/2003WO2002065735A3 Vehicle accessory microphone
06/26/2003WO2002058733A3 Combinations of bile acid sequestrant(s) and sterol absorption inhibitor(s) and treatments for vascular indications
06/26/2003US20030118205 High directivity microphone array
06/26/2003US20030118204 Wireless microphone
06/26/2003US20030118200 System and method of indicating and controlling sound pickup direction and location in a teleconferencing system
06/26/2003US20030118197 Communication system using short range radio communication headset
06/25/2003EP1322137A2 Portable speaker systems and applications thereof
06/25/2003EP1322136A2 Flat panel sound radiator with supported exciter and compliant surround
06/25/2003EP1322134A1 Electronic device comprising a loudspeaker
06/25/2003EP1321011A1 Otoplastic with an integrated module, in-ear otoplastic and method for adapting otoplastics
06/25/2003EP1320340A1 Intra-auricular otoplastic
06/25/2003EP1217916A4 Attachment device for mobile phone or the like
06/25/2003EP1169884B1 Flat surface loudspeaker and method for operating the same
06/25/2003EP0943224B1 Electroacoustic transducer comprising spring contacts formed with at least one bend
06/25/2003CN2558179Y Improved loudspeaker casing
06/25/2003CN2558178Y 可调式扬声器座 Adjustable Speaker Stand
06/25/2003CN2558177Y 2.1 combined loudspeaker casing
06/25/2003CN1426667A Directional processing for multi-microphone system
06/25/2003CN1426358A Reversing alarm
06/24/2003US6584209 Open-type magnetic circuitry of loudspeaker
06/24/2003US6584208 Ear transceiver
06/24/2003US6584206 Speaker apparatus
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