Knurling the diaphragm also lowers the panel resonance frequency, so smaller panels can produce increased bass output. Dome tweeters do away with the cone and just use the cap, being both driven and suspended from the outer circumference alone. Sign up using Facebook. The result is sound of unparalleled purity, precision, clarity, and openness – the next best thing to no speaker at all. The apparatus of claim 10 , wherein a first ridge has a triangular cross-sectional shape. It is contemplated that knurled ridges have less aggressive heights and shapes proximal the edge of the diaphragm to mitigate potential diaphragm material failures.
||5 August 2007
||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
||Free* [*Free Regsitration Required]
USB2 – Knurled speaker diaphragm – Google Patents
This page was last edited on 3 Septemberat As for the spherical portion, it’s just a dust cap, and I have never come across literature claiming a ‘significant’ effect due cjrvilinear its shape. While not limiting, the knurled ridges can have a thicknessas measured along the Z axis, that continuously curbilinear to a height that is at least twice the thickness of the diaphragm They needed a contact point around the perimeter to keep them from wobbling and another contact point at the center for the voice coil motor to drive them.
Whilst the two main requirements for cudvilinear cones appear to be mutually exclusive, clever design and the innovative use of materials can enable some very high performance loudspeakers to be designed and manufactured.
The controller can be connected to any number of other local electrical components, such as amplifiers, capacitors, and memories, which enable the headphone enclosure to provide mono and stereo audio generation from at least one audio signal source. Large speakers usually have a screen-covered vent on adio back of the motor to allow trapped air pressure and dissipated heat to escape from the motor into the speaker cabinet whereas smaller speakers might have only a small or no vent, relying on seepage through the treated curvliinear ‘spider’ corrugated suspension from the basket that holds the voice coil in the center of the gap.
A planar magnetic magnetic planar speaker, in accordance with some embodiments, has a diaphragm positioned proximal to and curviinear from an array of magnets with the diaphragm consisting of a substrate and at least one patterned electrically conductive trace.
The speaker cone design is critical to the performance of the overall loudspeaker and has requirements that are difficult to meet to obtain the optimum performance. In a dynamic loudspeakera diaphragm is the thin, semi-rigid membrane attached to the voice coilwhich moves in a magnetic gap, vibrating the diaphragm, and producing sound. All this development takes place in the audiophile technology marketplace and most of the latest developments are proprietary and patented, as well as basically useless IMO with only a few notable exceptions such as Thiele-Small ported audiio designs.
Overall, AirFrames enhance imaging, low-level sonic detail, accuracy, and efficiency. Some retro ‘audiophile’ speakers use a single 6″ Fostex driver and do away with the dust cover. Knurling decreases the transverse velocity of sound in the conductor and significantly raises its compliance relative to the substrate, which reduces abridges resonance areas on the surface of the diaphragm. curvipinear
US9854364B2 – Knurled speaker diaphragm – Google Patents
Various embodiments may utilize combinations of linear and curvilinear ridge pathways across the diaphragmbut the non-limiting embodiment of FIG. With the various embodiments of the present disclosure, it can be appreciated that a knurling device can be tuned to provide any knurled ridge geometry and pattern. The ridge pattern may be configured with uniform spacing between the ridges throughout the ridge’s respective lengths in the X-Y plane.
Videos Learn more by watching. As such, the planar magnetic assembly can provide sound reproduction for portable apparatus, like headphones and in-ear monitors, as well as for fixed apparatus, such as loudspeakers and floor standing monitors.
It is contemplated that a knurled ridge can be positioned anywhere on the diaphragm and continuously, or intermittingly, extend to partially, or completely, across the diaphragm In accordance with a non-limiting embodiment, the first plate has a substantially linear body while the second plate has a curved body that is conducive to applying increased amounts of pressure as the second plate across the protrusions of the first plate The ability to knurl the diaphragm with patterns of multiple ridges of similar, or dissimilar, shapes and sizes allows the planar magnetic speaker to be customized for a variety of different enclosures and types of sound being reproduced.
Speaker Cone | Loudspeaker Diaphragm | Electronics Notes
Another factor to consider is how easy to fabricate they are. The pattern has a plurality of concentric circles that do not extend to the outer periphery of the diaphragm It is contemplated that the continuously curvilinear ridge pathways provide varying ridge spacing distances that can be manipulated to tune the structure and operation of the diaphragm This dramatic increase in effective radiating area curvilineag to higher efficiency and an even more effortless, unlimited dynamic presentation.
It is noted that the ridge spacing distances are measured along the Y axis, but such measurement is not required and any measurement orientation can be used to describe uniform or non-uniform spacing between knurled ridges It is to be understood that even though numerous characteristics and configurations of various embodiments of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of various embodiments, this detailed description is illustrative only, and changes may be made in detail, especially in matters of structure and arrangements of parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
For example, the particular elements may vary depending on the particular application without departing from the spirit and scope of the present technology. Our new thin-film plasma-deposition process applies an improved conductive coating to the ultra-low-mass PET polyethylene terathylate diaphragm for superior adhesion and abrasion resistance, as well as a better impedance characteristic.
However, such multi-driver configuration is not practical in portable audio devices, like headphones, due at least to size and power requirements.
The paper used for speaker cones consists of wood, and rag fibres including kapok, waxes, fungicides and some resins. What is claimed is: