公开(公告)号：US20110273354A1

公开(公告)日：2011-11-10

申请号：US12989946

申请日：2009-05-04

Applicant: Ronald Davidson

Inventor： Ronald Davidson

IPC: H01Q1/50

CPC classification number: H01Q7/005 ,  H01Q9/145 ,  H03H7/38

Abstract: A transfer unit for transferring a radio frequency signal between a classical antenna tuner and an antenna where the transfer unit comprises a switch for alternatively selecting a first direct route for the radio frequency signal between the tuner and the antenna or a second route via a reactive element; said reactive element comprising a variable serial capacitance and a shunt inductance connected to system earth; and where a control unit controls the switch and is adapted to select the first route when the frequency is above a predetermined value and otherwise select the second route. The variable serial capacitance comprises a set of capacitors organized as a set of binary weighted parallel capacitance values, and the transfer unit further comprises switches to engage or disengage each capacitor from the reactive element to increase or decrease the resulting capacitance as the radio frequency is decreased or increased. The control unit can use a subset of the capacitors for one range of frequencies and a different subset of the capacitors for a different range of frequencies. The control unit can alternatively measure the radio frequency by means of a sensor or receive frequency values via a data link.

Abstract translation: 一种用于在经典天线调谐器和天线之间传送射频信号的传送单元，其中传送单元包括用于交替地选择用于调谐器和天线之间的射频信号的第一直接路由的开关或经由无效元件的第二路由 ; 所述无功元件包括可变串联电容和连接到系统接地的并联电感; 并且其中控制单元控制开关，并且适于在频率高于预定值时选择第一路线，否则选择第二路线。 可变串联电容包括组合为一组二进制加权并联电容值的电容器组，并且转移单元还包括用于使每个电容器与电抗元件接合或分离的开关，以随着射频减小而增加或减小所得到的电容 或增加。 控制单元可以在一个频率范围内使用电容器的子集，并且在不同的频率范围内可以使用电容器的不同子集。 控制单元可以通过传感器或通过数据链路接收频率值来测量射频。

公开(公告)号：US07236353B2

公开(公告)日：2007-06-26

申请号：US11400871

申请日：2006-04-10

Applicant: Ronald Davidson ,  David Ravie

Inventor： Ronald Davidson ,  David Ravie

IPC: H05K7/20

CPC classification number: H05K7/1461 ,  G06F1/181 ,  G06F1/183 ,  G06F1/20 ,  H05K7/1411

Abstract: An instrument enclosure apparatus has a housing with a sidewall and a pair of retaining posts disposed within the housing and adjacent the sidewall, the retaining posts in combination with the sidewall defining a pair of opposing channels for slidably receiving a complementarily shaped insert part. Vents may be disposed along the sidewall of the housing, and the insert part assists in providing adaptable air flow management design.

Abstract translation: 仪器外壳设备具有壳体，其具有侧壁和一对保持柱，其设置在壳体内并且邻近侧壁，保持柱与侧壁结合，限定一对相对的通道，用于可滑动地接收互补形状的插入部分。 通风口可以沿着壳体的侧壁设置，并且插入部分协助提供适应性的气流管理设计。

公开(公告)号：US20060176653A1

公开(公告)日：2006-08-10

申请号：US11400871

申请日：2006-04-10

Applicant: Ronald Davidson ,  David Ravie

Inventor： Ronald Davidson ,  David Ravie

IPC: H05K5/00

CPC classification number: H05K7/1461 ,  G06F1/181 ,  G06F1/183 ,  G06F1/20 ,  H05K7/1411

Abstract: An instrument enclosure apparatus has a housing with a sidewall and a pair of retaining posts disposed within the housing and adjacent the sidewall, the retaining posts in combination with the sidewall defining a pair of opposing channels for slidably receiving a complementarily shaped insert part. Vents may be disposed along the sidewall of the housing, and the insert part assists in providing adaptable air flow management design.

公开(公告)号：US20050193772A1

公开(公告)日：2005-09-08

申请号：US10794938

申请日：2004-03-05

Applicant: Ronald Davidson

Inventor： Ronald Davidson

IPC: C03B21/00

CPC classification number: C03B29/10 ,  C03B25/087 ,  C03B35/205 ,  H01L21/67115 ,  H01L21/67363

Abstract: A convection compatible closed cassette and method are described herein where the closed cassette is used to heat treat (compact) one or more glass sheets in a uniform manner and in a clean environment. In the preferred embodiment, the closed cassette includes multiple enclosed sections that are supported by a mounting structure in a manner where there is an open passageway between the major surfaces of each pair of the supported enclosed sections. And, each enclosed section is designed to hold and support multiple glass sheets in a manner where there is a space between the major surfaces of each pair of the supported glass sheets. In operation, the closed cassette is placed into an oven (e.g., lehr, batch kiln) so that hot/cold unfiltered air can flow across the major surfaces of each enclosed section and uniformly heat/cool the enclosed glass sheets.

Abstract translation: 本文描述了对流兼容的封闭盒和方法，其中封闭的盒用于以均匀的方式和在清洁的环境中热处理（压实）一个或多个玻璃板。 在优选实施例中，封闭盒包括由安装结构支撑的多个封闭部分，其中在每对支撑的封闭部分的主表面之间存在开放通道。 并且，每个封闭部分被设计成以在每对支撑的玻璃板的主表面之间存在空间的方式保持和支撑多个玻璃板。 在操作中，将封闭的盒子放置在烘箱（例如，退火炉，分批窑炉）中，使得热/冷未过滤的空气可以流过每个封闭部分的主表面并且均匀地加热/冷却封闭的玻璃板。

公开(公告)号：US07057884B2

公开(公告)日：2006-06-06

申请号：US10641782

申请日：2003-08-15

Applicant: Ronald Davidson ,  David Ravie

Inventor： Ronald Davidson ,  David Ravie

IPC: G06F1/16

CPC classification number: H05K7/1461 ,  G06F1/181 ,  G06F1/183 ,  G06F1/20 ,  H05K7/1411

Abstract: An instrument enclosure apparatus has a housing with a sidewall and a pair of retaining posts disposed within the housing and adjacent the sidewall, the retaining posts in combination with the sidewall defining a pair of opposing channels for slidably receiving a complementarily shaped insert part. Vents may be disposed along the sidewall of the housing, and the insert part assists in providing adaptable air flow management design.

Abstract translation: 仪器外壳设备具有壳体，其具有侧壁和一对保持柱，其设置在壳体内并且邻近侧壁，保持柱与侧壁结合，限定一对相对的通道，用于可滑动地接收互补形状的插入部分。 通风口可以沿着壳体的侧壁设置，并且插入部分协助提供适应性的气流管理设计。

公开(公告)号：US20050200552A1

公开(公告)日：2005-09-15

申请号：US10513061

申请日：2003-04-29

Applicant: Ronald Davidson

Inventor： Ronald Davidson

IPC: H01Q1/36 ,  H01Q5/00 ,  H01Q11/08 ,  H01Q21/00

CPC classification number: H01Q9/14 ,  H01Q1/36 ,  H01Q11/08

Abstract: The invention concerns a passive tunable broadband antenna. The antenna radiating element consists of stacked toroids (T) connected in series, means (a, c) being provided for shorting the toroids individually and at will, and means (b, d) being provided for interrupting the connection between any two successive toroids. The invention is particularly applicable to the 30-412 MHz operating range.

Abstract translation: 本发明涉及一种无源可调谐宽带天线。 天线辐射元件由串联连接的堆叠环形线圈（T）组成，提供用于单独和随意地短路环形线圈的装置（a，c），以及用于中断任何两个连续环形线圈之间的连接的装置（b，d） 。 本发明特别适用于30-412MHz的工作范围。

公开(公告)号：US08982007B2

公开(公告)日：2015-03-17

申请号：US12989946

申请日：2009-05-04

Applicant: Ronald Davidson

Inventor： Ronald Davidson

IPC: H01Q1/50 ,  H03H7/38 ,  H01Q7/00 ,  H01Q9/14

CPC classification number: H01Q7/005 ,  H01Q9/145 ,  H03H7/38

Abstract: A transfer unit for transferring a radio frequency signal between a classical antenna tuner and an antenna where the transfer unit comprises a switch for alternatively selecting a first direct route for the radio frequency signal between the tuner and the antenna or a second route via a reactive element; said reactive element comprising a variable serial capacitance and a shunt inductance connected to system earth; and where a control unit controls the switch and is adapted to select the first route when the frequency is above a predetermined value and otherwise select the second route. The variable serial capacitance comprises a set of capacitors organized as a set of binary weighted parallel capacitance values, and the transfer unit further comprises switches to engage or disengage each capacitor from the reactive element to increase or decrease the resulting capacitance as the radio frequency is decreased or increased. The control unit can use a subset of the capacitors for one range of frequencies and a different subset of the capacitors for a different range of frequencies. The control unit can alternatively measure the radio frequency by means of a sensor or receive frequency values via a data link.

Abstract translation: 一种用于在经典天线调谐器和天线之间传送射频信号的传送单元，其中传送单元包括用于交替地选择用于调谐器和天线之间的射频信号的第一直接路由的开关或经由无效元件的第二路由 ; 所述无功元件包括可变串联电容和连接到系统接地的并联电感; 并且其中控制单元控制开关，并且适于在频率高于预定值时选择第一路线，否则选择第二路线。 可变串联电容包括组合为一组二进制加权并联电容值的电容器组，并且转移单元还包括用于使每个电容器与电抗元件接合或分离的开关，以随着射频减小而增加或减小所得到的电容 或增加。 控制单元可以在一个频率范围内使用电容器的子集，并且在不同的频率范围内可以使用电容器的不同子集。 控制单元可以通过传感器或通过数据链路接收频率值来测量射频。