Austin, TX, United States
Austin, TX, United States
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Patent
Acoustic Technologies | Date: 2015-11-24

An antenna tuning assembly is disclosed, including: a substrate; an input path on the substrate, for receiving control signals; a tuning network on the substrate, including an impedance circuit with a tunable impedance and at least one tuner connecting with the impedance circuit and the input path for generating an corresponding impedance in response to the control signals; an output path connecting with the tuning network on the substrate, for coupling to an external antenna according to the corresponding impedance.


Patent
Acoustic Technologies | Date: 2016-03-28

The present invention discloses a camera lens composed of 4 ultrathin and high-luminous flux wide angle lenses with excellent optical properties. The lenses are lined up in turn from the object side as follows: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, and a fourth lens with negative refractive power. The camera lens meets specific conditions.


Patent
Acoustic Technologies | Date: 2016-03-15

A photographic mask is provided in the present disclosure. The photographic mask includes a silicon-on-insulator (SOI) base and a stepped opening formed in the SOI base. The SOI base includes a silicon substrate, a median layer and a silicon layer, the median layer is arranged between the insulator substrate and the insulator layer. The stepped opening includes a first opening portion and a second opening portion, the first opening portion penetrates through the silicon layer and has a first opening area; the second opening portion at least penetrates through the silicon substrate and is aligned with the first opening portion. The second opening portion has a second opening area greater than the first opening area of the first opening portion. The present disclosure further provides a method for making a photographic mask.


Patent
Acoustic Technologies | Date: 2016-11-02

A long stroke speaker is provided in the present disclosure. The long stroke speaker includes a shell, a magnetic system, and a vibrating system. The magnetic system includes a magnet assembly and a magnetic guiding module cooperatively for forming a magnetic gap. The vibrating system includes a membrane, a coil support connected to the membrane, and a voice coil connected to the coil support. The magnet assembly includes a first magnet, a second magnet and a pole member, a magnetic direction of the first magnet and a magnetic direction of the second magnet are parallel to a vibration direction of the vibrating system, and an end of the first magnet adjacent to the pole member has a same polarity as an end of the second magnet adjacent to the pole member. The voice coil is arranged at the magnetic gap and surrounds the pole member.


Patent
Acoustic Technologies | Date: 2016-10-18

A speaker is provided in the present disclosure. The speaker includes a magnetic circuit system, a vibration system and an auxiliary system suspending the vibration system above the magnetic circuit system. The magnetic circuit system comprises a yoke, permanent magnets assembled on the yoke, and a magnetic gap near the permanent magnets. The yoke comprises an upper surface for assembling the permanent magnets, a lower surface opposite to the upper surface, side surfaces connecting the upper surface and the lower surface, and communication conduits extending through the upper surface and the side surface to communicate the magnetic gap and the space outside the speaker.


Patent
Acoustic Technologies | Date: 2016-08-04

An audio bass compensation system is disclosed. The audio bass compensation system includes a first signal path and a second signal path which are set in parallel. The first signal path includes a first equalizer, a first phase correction unit, a first power amplifier, a receiver or speaker. The second signal path includes a second equalizer, a second phase correction unit, a second power amplifier and a bass speaker which are connected electrically in series. Compared with the related technology, the audio bass compensation system adopts the receiver or the speaker to provide the medium-high compensation to the bass speaker. The present invention also provides a compensation method for audio bass compensation system.


Patent
Acoustic Technologies | Date: 2016-01-25

A RFID antenna structure is disclosed. The RFID antenna structure includes: a metal back cover; a circuit board located below the metal back cover, the circuit board including a base plate and a ground plate overlaid on the base plate; a RFID chip mounted on the base plate; match circuits connected electrically with the RFID chip and located on the base plate; and an antenna coil connected electrically with the match circuits and located between the circuit board and the metal back cover. The metal back cover includes a top cover and a middle cover separated from the top cover by a slit, the antenna coil is located at least partly inside an area of the top cover, and the antenna coil is connected inductively with the top cover and/or the middle cover.


Patent
Acoustic Technologies | Date: 2016-03-24

The present invention discloses a camera lens composed of five ultrathin and high-luminous flux wide angle lenses with excellent optical properties. The lenses are lined up in turn from the object side as follows: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power a fifth lens with negative refractive power. The camera lens meets specific conditions.


Patent
Acoustic Technologies | Date: 2016-03-24

A camera lens is disclosed and includes from an object side to an image side: a first lens with positive refractive power; a second lens with negative refractive power; a third lens with negative refractive power; a fourth lens with positive refractive power and a fifth lens with negative refractive power. Specific conditions are satisfied.


Patent
Acoustic Technologies | Date: 2016-03-25

A camera lens is disclosed and includes from the object side to the image side: a first lens with positive refractive power; a second lens with negative refractive power; a third lens with negative refractive power; a fourth lens with positive refractive power; a fifth lens with positive refractive power; and a sixth lens with negative refractive power. Specific conditions are satisfied.

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