公开(公告)号：USD1070814S1

公开(公告)日：2025-04-15

申请号：US29938697

申请日：2024-04-23

Applicant: Franco L D'Ascanio ,  Sean P Snowden ,  Harold M. Zimmermann ,  Igor Levitsky

Designer： Franco L D'Ascanio ,  Sean P Snowden ,  Harold M. Zimmermann ,  Igor Levitsky

公开(公告)号：US08116512B2

公开(公告)日：2012-02-14

申请号：US11855148

申请日：2007-09-13

Applicant: Igor Levitsky

Inventor： Igor Levitsky

IPC: H04R25/00

CPC classification number: H04R7/04 ,  H04R9/025

Abstract: A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another aspect of the driver includes a corrugated region along the periphery of the diaphragm, which provides increased internal dampening.

Abstract translation: 平面磁驱动器包括保持在张力下以形成弯曲或弯曲表面的覆盖板，从而提供更大的磁隙，并允许隔膜更大的偏移和更低的频率响应。 驱动器的另一方面包括沿隔膜周边的波纹区域，其提供增加的内部阻尼。

公开(公告)号：US08031901B2

公开(公告)日：2011-10-04

申请号：US11855146

申请日：2007-09-13

Applicant: Igor Levitsky

Inventor： Igor Levitsky

IPC: H04R1/00

CPC classification number: H04R9/047 ,  H04R2307/201 ,  H04R2307/207

Abstract: A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another aspect of the driver includes a corrugated region along the periphery of the diaphragm, which provides increased internal dampening.

Abstract translation: 平面磁驱动器包括保持在张力下以形成弯曲或弯曲表面的覆盖板，从而提供更大的磁隙，并允许隔膜更大的偏移和更低的频率响应。 驱动器的另一方面包括沿隔膜周边的波纹区域，其提供增加的内部阻尼。

公开(公告)号：US20070110269A1

公开(公告)日：2007-05-17

申请号：US11539600

申请日：2006-10-06

Applicant: Igor Levitsky

Inventor： Igor Levitsky

IPC: H04R1/02 ,  H03G5/00 ,  H04R9/06

CPC classification number: H04R1/26 ,  H04R1/403 ,  H04R2201/403

Abstract: A biplane line array speaker includes a line array of tweeters mounted substantially directly in front of a line array of woofers. The tweeter line array is arcuately shaped to provide controlled vertical dispersion above and below the boundaries of the speaker cabinet. The woofers are displaced from the tweeters in stepped manner. The speaker cabinet is a rectangular box, allowing efficient wall mounting in single or multiple unit columns. IN multiple unit columns, the individual units acoustically couple to each other.

Abstract translation: 双平面线阵列扬声器包括基本上直接安装在低音单元阵列前面的高音扬声器阵列。 高音线阵列呈弧形，以在扬声器机箱的边界上方和下方提供受控的垂直分散。 低音扬声器从高音扬声器中逐步流离失所。 扬声器柜是一个矩形盒，允许在单个或多个单元柱中高效地安装墙壁。 在多个单元列中，各个单元彼此声学耦合。

公开(公告)号：US07146019B2

公开(公告)日：2006-12-05

申请号：US10238043

申请日：2002-09-05

Applicant: Igor Levitsky

Inventor： Igor Levitsky

IPC: H04R25/00

CPC classification number: H04R9/048

Abstract: A planar electro-acoustic transducer has an adjustable back cap option that provides a dipole/monopole radiation that has different roll-off characteristics. The planar electro-acoustic transducer includes a diaphragm and a plurality of front and rear magnetic bars. Each magnetic bar has a side facing the diaphragm and disposed adjacent thereto. The thickness of each rear magnetic bar is larger than the thickness of each front magnetic bar. The thickness of each front magnetic bar is less than a quarter-wavelength of a cavity resonance at 10 kilohertz. The planar electro-acoustic transducer also includes a non-magnetic acoustically transparent metallic mesh that is disposed coplanarly with the sides of the front and rear magnetic bars that face the diaphragm.

Abstract translation: 平面电声换能器具有可调的后盖选项，其提供具有不同滚降特性的偶极/单极辐射。 平面电声换能器包括隔膜和多个前后磁条。 每个磁棒具有面向隔膜的一侧并与其相邻设置。 每个后磁条的厚度大于每个前磁条的厚度。 每个前磁条的厚度小于10千赫的谐振共振的四分之一波长。 平面电声换能器还包括与面向隔膜的前后磁棒的侧面共面设置的非磁性声透明金属网。

公开(公告)号：US20060120917A1

公开(公告)日：2006-06-08

申请号：US11252419

申请日：2005-10-17

Applicant: Timothy Swager ,  Jye-Shane Yang ,  Vance Williams ,  Yi-Jun Miao ,  Claus Lugmair ,  Igor Levitsky ,  Jinsang Kim ,  Robert Deans

Inventor： Timothy Swager ,  Jye-Shane Yang ,  Vance Williams ,  Yi-Jun Miao ,  Claus Lugmair ,  Igor Levitsky ,  Jinsang Kim ,  Robert Deans

IPC: G01N21/00

CPC classification number: C08L101/12 ,  B82Y10/00 ,  C08F257/02 ,  C08G61/00 ,  C08G61/10 ,  C08L65/00 ,  C09K9/02 ,  C09K11/06 ,  G01N21/6428 ,  G01N21/643 ,  G01N21/7703 ,  G01N2021/7786 ,  H01L51/0035 ,  H01L51/0043 ,  H01L51/0044 ,  H01L51/0052 ,  H01L51/0077 ,  H01L51/0545 ,  H01L51/0595 ,  H01L51/428 ,  H01L51/5012 ,  Y02E10/549 ,  C08F232/00

Abstract: The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or π-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state. The present invention also relates to devices and methods for amplifying emissions by incorporating a polymer having an energy migration pathway and/or providing the polymer as a block co-polymer or as a multi-layer.

公开(公告)号：US11470410B1

公开(公告)日：2022-10-11

申请号：US17663480

申请日：2022-05-16

Applicant: Franco L D'Ascanio ,  Sean P Snowden ,  Igor Levitsky ,  Franco C D'Ascanio ,  Harold M Zimmermann

Inventor： Franco L D'Ascanio ,  Sean P Snowden ,  Igor Levitsky ,  Franco C D'Ascanio ,  Harold M Zimmermann

IPC: H04R1/02

Abstract: An elliptically shaped speaker has a driver assembly which may include a woofer driver and a tweeter driver. The speaker has a uniquely designed bridge member. The bridge member acts both as a structural element and waveguide for the tweeter. It has a specific elongated, elliptical shape that allows the speaker to be inserted into a corresponding cut-out opening in a wall, ceiling or any other structural panel, then rotated behind the panel and re-inserted from behind into the opening, thereby providing a secure seal and exact positioning within the panel. The resulting system allows for a low frequency speaker to be installed behind the panel with a noticeably smaller opening than the total size of the speaker.

公开(公告)号：USD962192S1

公开(公告)日：2022-08-30

申请号：US29818553

申请日：2021-12-09

Applicant: Franco L D'Ascanio ,  Franco C D'Ascanio ,  Sean P Snowden ,  Harold Zimmermann ,  Igor Levitsky

Designer： Franco L D'Ascanio ,  Franco C D'Ascanio ,  Sean P Snowden ,  Harold Zimmermann ,  Igor Levitsky

公开(公告)号：US08027493B2

公开(公告)日：2011-09-27

申请号：US11539600

申请日：2006-10-06

Applicant: Igor Levitsky

Inventor： Igor Levitsky

IPC: H04R25/00 ,  H04R1/02

CPC classification number: H04R1/26 ,  H04R1/403 ,  H04R2201/403

Abstract: A biplane line array speaker includes a line array of tweeters mounted substantially directly in front of a line array of woofers. The tweeter line array is arcuately shaped to provide controlled vertical dispersion above and below the boundaries of the speaker cabinet. The woofers are displaced from the tweeters in stepped manner. The speaker cabinet is a rectangular box, allowing efficient wall mounting in single or multiple unit columns. In multiple unit columns, the individual units acoustically couple to each other.

Abstract translation: 双平面线阵列扬声器包括基本上直接安装在低音单元阵列前方的高音扬声器阵列。 高音线阵列呈弧形，以在扬声器机箱的边界上方和下方提供受控的垂直分散。 低音扬声器从高音扬声器中逐步流离失所。 扬声器柜是一个矩形盒，允许在单个或多个单元柱中高效地安装墙壁。 在多个单元列中，各个单元彼此声学耦合。

公开(公告)号：US20060263922A1

公开(公告)日：2006-11-23

申请号：US11410796

申请日：2006-04-25

Applicant: Igor Levitsky ,  William Euler ,  Natalya Tokranova ,  Bai Xu ,  James Castracane

Inventor： Igor Levitsky ,  William Euler ,  Natalya Tokranova ,  Bai Xu ,  James Castracane

IPC: H01L21/00

CPC classification number: H01L51/4213 ,  H01L51/0037 ,  H01L51/0078 ,  H01L51/4253 ,  Y02E10/549

Abstract: A method for forming a photovoltaic cell which includes forming a nanostructured layer in a semiconductor material having a plurality of pores opening onto a surface, the plurality of pores having a depth greater than about 1 micron and a diameter between about 5 nanometers and about 1,200 nanometers, and disposing an organic charge-transfer material in the pores of the nanostructured layer. A first electrode is attached to the semiconductor material, and a second electrode is attached to the organic charge-transfer material. The semiconductor material has a thickness between about 5 microns and about 700 microns. Desirably, the nanostructured layer has a porosity of less than the porosity corresponding to the percolation threshold, and the organic charge-transfer material extends at least about 100 nm from the surface of the nanostructured layer. The organic charge-transfer material may partially cover the sides of the pores of the nanostructured layer thereby providing a generally cylindrical cavity therein.