|
Match
|
Document |
Document Title |
|
|
7474590 |
Pressure wave generator and process for manufacturing the same
Even when compression stress is generated because a volume of a thermal insulation layer 2 is expanded due to oxidized by oxygen in the air, occurrence of cracks and fractures of the thermal...
|
|
|
7372110 |
Display with integral sound wave generation device
A display housing a sound element and a driving circuit that may be built in on the same substrate as the display panel. Thin-film transistors PTFT constituting pixels and a sound wave generation...
|
|
|
6522756 |
Method for shaping the spatial reception amplification characteristic of a converter arrangement and converter arrangement
So as to shape the spatial amplification characteristic of an acoustical to electrical converter arrangement at least two sub-arrangements (I, II) of converters are provided, generating different...
|
|
|
6263084 |
Power amplifier and loudspeaker frame integration
An integrated amplifier and speaker system includes a speaker having a motor assembly and a frame. A power stage of the amplifier is mounted in thermal communication with the motor assembly and/or...
|
|
|
5764751 |
Portable telephone set with a vibrator having an automatic switching function
In a portable telephone set comprising a receiver for generating an audible tone, a vibrator for vibrating the portable telephone set mechanically, and a radio section for receiving an incoming...
|
|
|
4641377 |
Photoacoustic speaker and method
A photoacoustic speaker and method for producing photoacoustic sound by utilizing a laser beam, modulating the intensity of the laser beam in response to audio signal inputs and passing the...
|
|
|
4503564 |
Opto-acoustic transducer for a telephone receiver
A sound producing diaphragm of low density, low heat capacity, a large coefficient of thermal expansion and a large Young's modulus is located adjacent the end of an optical fiber transmission line...
|
|
|
4320264 |
Loudspeaker with a heat resistant two-part diaphragm
A loudspeaker is disclosed in which the frustoconical diaphragm is formed in two parts, including a first or outer part made of synthetic material e.g. polypropylene or polystyrene, and a second or...
|
|
|
4310731 |
Thermal motion transducer
A source of driving signals is coupled to a thermal transducer wire to provide a completed circuit. The source may include a DC bias supply and an audio amplifier. The bias supply heats the wire to...
|
|
|
4101736 |
Device for increasing the compliance of a speaker enclosure
The present invention is a device for use in combination with a loudspeaker system, that includes a speaker enclosure, in order to effectively enlarge the volume of the speaker enclosure. The...
|
|
|
3407273 |
Thermoacoustic loudspeaker
|
|
|
3213208 |
Electric to sonic transducer
|
|
|
0936207 |
Title is not available
|