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)
08/2000
08/16/2000CN2392327Y Phase reversal tube for voice box
08/16/2000CN2392326Y Sectional and adjustable type terminal combination electric appliance casing
08/16/2000CN1263663A Portable telephone with movable microphone unit
08/16/2000CN1055601C Stereophonic reproduction method and apparatus
08/15/2000US6104824 Headphone device with headband arranged around occipital regional of the head
08/15/2000US6104823 Speaker system
08/15/2000US6104816 High noise communication system
08/15/2000US6103286 Spraying carcass with aqueous antimicrobial composition comprising mixture of peroxycarboxylic acid and carboxylic acid
08/10/2000WO2000047012A2 Sound generator with a pump actuator
08/10/2000WO2000046786A2 A headphone comprising bending-wave loudspeakears
08/10/2000WO2000045895A1 Mouthpiece and speaker assemblies for underwater speech
08/10/2000WO2000045760A1 Device for attenuating sound on the human ear
08/10/2000WO2000033613A3 Resonant bending wave panel-form loudspeaker
08/09/2000EP1026919A2 Loudspeaker with connection without soldering
08/09/2000EP1026663A2 Multiplexed array transducers with improved far-field performance
08/09/2000CN1262856A Method and apparatus for formating digital audio signal for use of sound reproduction
08/09/2000CN1262591A Antibacterial plastics for mobile telephone and its parts and its preparing process
08/08/2000US6101262 Flush-mount pivoting speaker
08/08/2000US6101261 Variable tilt loud speaker enclosure
08/08/2000US6101260 Communication headset
08/08/2000US6101259 Behind the ear communication device
08/08/2000US6098743 Acoustical speaker housing and method of installation
08/03/2000WO2000045616A1 Resonant panel-form loudspeakers
08/03/2000WO2000045615A2 Apparatus having a housing which accommodates a sound transducer and which has a passage
08/03/2000WO2000035338A8 Device for injecting ultrasonic waves into a medium
08/03/2000DE19904106A1 Schallgenerator mit Pumpantrieb Sound generator with pump drive
08/03/2000DE19903823A1 Lautsprecher mit lötfreiem Anschluss Speakers with solderless connection
08/03/2000DE19828090A1 Head phones, utilising natural electric potentials of elements and their combinations
08/03/2000CA2360955A1 Resonant panel-form loudspeakers
08/02/2000EP1024678A2 Passive speaker
08/02/2000EP1023780A1 Vehicular loudspeaker system
08/01/2000US6097828 Electroacoustic transducer
08/01/2000US6097827 Adjustable earphone with a microphone
08/01/2000US6097586 Variable capacitor
08/01/2000US6095279 Loudspeaker system
08/01/2000CA2297344A1 Look direction microphone system with visual aiming aid
07/2000
07/27/2000WO2000044199A1 Compound electrolytic loudspeaker assembly
07/27/2000WO2000044197A1 Bone-conduction microphone
07/27/2000WO2000032010A3 Auxiliary bass radiator units
07/27/2000CA2359752A1 Compound electrolytic loudspeaker assembly
07/26/2000EP1022928A2 Apparatus for and a method of improving the sound quality of loudspeakers
07/26/2000CN2389451Y Novel earphone
07/26/2000CN2389450Y Luminous microphone and connection wire thereof
07/26/2000CN1261247A Method for manufacturing wooden sound enclosure body
07/25/2000US6094497 Loudspeaker system having back pressure equalization
07/25/2000US6094495 Horn-type loudspeaker system
07/25/2000US6094492 Bone conduction voice transmission apparatus and system
07/25/2000CA2033580C Hearing aid
07/20/2000WO2000041734A1 Telephone handset sterilizer method and apparatus
07/20/2000WO2000041733A1 Computer input device sterilization method and apparatus
07/20/2000DE19901866A1 Changing direction of sound emanating from sound body using reflector involves arranging conventional reflector on side of spherical sound source remote from and/or to side of sound space
07/20/2000DE19859046A1 Tiefton-Membranlautsprecher Bass loudspeaker
07/19/2000EP1020096A1 Miniature full range loudspeaker
07/19/2000EP1020095A1 Sound-transmitting amusement device and method
07/18/2000US6091832 Wearable personal audio loop apparatus
07/18/2000US6091831 Electronic product with a function knob capable of receiving voice signal
07/18/2000US6091830 Transmitter structure for limiting the effects of wind noise on a microphone
07/18/2000US6091829 Microphone apparatus
07/18/2000US6091828 Dynamic microphone
07/18/2000CA2169910C Speaker cover grille
07/13/2000WO2000041437A2 Speaker system
07/13/2000WO2000041435A1 Speaker system
07/13/2000WO2000041434A2 Flush-mount pivoting speaker
07/13/2000WO2000040153A1 Damping cushion for ultrasound probes
07/13/2000CA2362056A1 Flush-mount pivoting speaker
07/12/2000EP1018288A1 Car radio system
07/12/2000EP0758213B1 Headset for electronic stethoscope
07/12/2000CN1259839A Mfg. method of artificial marble sound box
07/12/2000CN1259817A Receiver structure having no talking high frequency unpitched sound and impact noise
07/12/2000CN1054490C Loud speaker device and TV receiver using same
07/11/2000US6088464 Acoustic piezoelectric vibrator and loudspeaker using the same
07/05/2000EP1017251A2 Acoustic device
07/05/2000EP1017249A1 Method and device for sound recording and reproduction with natural feeling of sound space
07/05/2000EP1016317A2 Broadband loudspeaker
07/05/2000EP1016315A1 Sound capturing method and device
07/05/2000EP1015912A1 Acoustic source i
07/05/2000EP0895642B1 Variable capacitor
07/05/2000CN1259005A Earphone device for providing dynamic voice with vibration and method for the same device
07/05/2000CN1258983A Retractable loudspeaker apparatus for portable wireless telephone
07/05/2000CN1054254C Loudspeaker system of TV
07/05/2000CN1054253C Frequency Q-value balancing method for electric audio system
07/04/2000US6084976 Earphone without impulse noise and conductive hearing loss
07/04/2000US6084972 Integrated microphone/amplifier unit, and amplifier module therefor
07/04/2000US6082486 Article for collecting sound for ears
06/2000
06/29/2000WO2000038475A2 A communication device
06/29/2000WO2000038474A2 Low-frequency diaphragm speaker
06/29/2000DE19861017A1 Ultraschall-Leistungswandler Ultrasonic power converter
06/28/2000EP1014656A2 A mobile phone accessory, particularly for hands-free function, and an arrangement
06/28/2000EP1014655A2 Arrangement for suppressing acoustic reflections in telephone handsets
06/28/2000EP1013139A2 Speaker system having an undulating rigid speaker enclosure
06/28/2000EP1012891A2 Aerogels, piezoelectric devices, and uses therefor
06/28/2000EP0877680B1 Speaker support bar and sound chamber above vehicle headliner
06/28/2000CN2385491Y Microphone with volume control device
06/28/2000CN2385490Y Indoor ceiling horn holder
06/28/2000CN1258185A Waveguide electro-acoustic transducer
06/28/2000CN1054020C Speaker apparatus
06/27/2000US6081604 Electric sound converter
06/27/2000US6081602 Arrayable two-way loudspeaker system and method
06/27/2000US6079515 Speaker enclosure
06/27/2000US6079514 Acoustic horn transducer with a conic type diffuser having and exponential profile in wood
1 ... 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 ... 422