公开(公告)号：US5960346A

公开(公告)日：1999-09-28

申请号：US832491

申请日：1997-04-03

Applicant: Howard Eugene Holshouser

Inventor： Howard Eugene Holshouser

IPC: H02J7/00 ,  H04B1/54 ,  H04B1/56 ,  H04B15/00 ,  H04M1/00 ,  H03G3/10

CPC classification number: H04B15/00 ,  H04B1/56 ,  H04R25/554 ,  H04R2225/33 ,  H04R2225/55 ,  H04R2420/07 ,  H04R2499/11

Abstract: A novel method and apparatus are described for reducing the effect that magnetic field emissions from a radio telephone may have on devices sensitive to time-varying magnetic fields. The variance of the magnetic field is smoothed by the addition of a smoothing capacitor having a time constant significantly longer than the TDMA time frame which is connected in parallel with the transmitter. In addition, a counter-balancing magnetic field is generated by a field canceling loop connected in series with the transmitter which causes current to flow in a path approximately opposite from the path the current flows through the battery, in roughly parallel plane. The current flowing through the field canceling loop generates a magnetic field approximately coaxial with, and opposite in polarity from, the magnetic field generated by current flowing through the battery, partially negating the latter. Utilization of the method and apparatus result in a reduction in the effective magnitude of the time-varying magnetic field outside the telephone.

Abstract translation: 描述了一种新颖的方法和装置，用于减少无线电话的磁场发射对对时变磁场敏感的装置可能具有的影响。 通过添加平滑电容器来平滑磁场的方差，该平滑电容器的时间常数明显长于与发射机并联的TDMA时间帧。 此外，通过与发射器串联连接的场消除回路来产生反平衡磁场，这使得电流在大致平行的平面中与电流流过电池的路径大致相反的路径中流动。 流过场消除回路的电流产生与流过电池的电流产生的磁场大致同轴并且极性相反的磁场，部分地使其抵消。 该方法和装置的利用导致电话外的时变磁场的有效幅度的降低。

公开(公告)号：US06961368B2

公开(公告)日：2005-11-01

申请号：US09770804

申请日：2001-01-26

Applicant: Paul W. Dent ,  Howard Eugene Holshouser ,  John Charles Phillips ,  Rod Dolman ,  Ron Boesch

Inventor： Paul W. Dent ,  Howard Eugene Holshouser ,  John Charles Phillips ,  Rod Dolman ,  Ron Boesch

IPC: H04B1/04 ,  H04B1/40 ,  H04L5/16 ,  H04L27/04 ,  H04L27/06

CPC classification number: H03F3/24 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/0458 ,  H04B1/406

Abstract: An adjustable matching network is provided for a wireless communications device transmitting and receiving signals in multiple frequency bands via an antenna. The adjustable matching network selectively connecting the antenna to a select power amplifier corresponding to a selected transmit frequency band and automatically matching the impedance of the antenna to the select power amplifier. The adjustable matching network also selectively connecting the antenna to a select bandpass filter corresponding to a selected receive frequency band and automatically matching the impedance of the antenna to the select bandpass filter.

Abstract translation: 为无线通信设备提供可调整的匹配网络，其经由天线在多个频带中发送和接收信号。 可调匹配网络将天线选择性地连接到对应于所选发射频带的选择功率放大器，并自动匹配天线与选择功率放大器的阻抗。 可调匹配网络还选择性地将天线连接到对应于所选接收频带的选择带通滤波器，并自动匹配天线与选择带通滤波器的阻抗。

公开(公告)号：US06229489B1

公开(公告)日：2001-05-08

申请号：US09022265

申请日：1998-02-11

Applicant: Howard Eugene Holshouser ,  Gerard J. Hayes

Inventor： Howard Eugene Holshouser ,  Gerard J. Hayes

IPC: H01Q124

CPC classification number: H01Q5/00 ,  H01Q1/244 ,  H01Q1/362 ,  H01Q5/321 ,  H01Q5/378 ,  H01Q11/08

Abstract: Dual-band retractable radiotelephone antennas have an elongated antenna element, a top load element, and a trap positioned between and electrically connected to the elongated antenna element and the top load element. The trap facilitates obtaining half-wave monopole performance at a first frequency band and half-wave monopole performance at a second higher frequency band.

Abstract translation: 双带可伸缩无线电话天线具有细长的天线元件，顶部负载元件和位于细长天线元件和顶部负载元件之间并电连接到细长天线元件和顶部负载元件的陷阱。 陷阱有助于在第二频带获得半波单极性能，在第二较高频带获得半波单极性能。

公开(公告)号：US6151486A

公开(公告)日：2000-11-21

申请号：US182682

申请日：1998-10-30

Applicant: Howard Eugene Holshouser ,  James Calvin Peele ,  John Charles Phillips

Inventor： Howard Eugene Holshouser ,  James Calvin Peele ,  John Charles Phillips

IPC: H04M1/02 ,  H04B1/38

CPC classification number: H04M1/0214

Abstract: An electronic device, such as a radiotelephone, has a magnetic latch that maintains a flip cover in a closed position and an electromagnetic release conveniently positioned for one-handed operation by a user. A first magnetic object is disposed within the housing and a second magnetic object is disposed within the flip cover so as to be magnetically attracted to the first magnetic object when the flip cover is in the closed position. The first and second magnetic objects are configured such that the magnetic attraction force therebetween is greater than the biasing force of the spring member to maintain the flip cover in the closed position. A user-activated magnetic field generator is disposed adjacent to at least one of the first and second magnetic objects and reduces the magnetic attraction force between the first and second magnetic objects relative to the biasing force of the spring member such that the flip cover is urged to the open position.

Abstract translation: 诸如无线电话机的电子设备具有磁性闩锁，其将翻盖保持在关闭位置，并且电磁释放方便地定位成用于用户的单手操作。 第一磁性物体设置在壳体内，并且第二磁性物体设置在翻盖内，以便当翻盖处于关闭位置时被磁吸引到第一磁性物体。 第一和第二磁性物体被构造成使得它们之间的磁吸引力大于弹簧构件的偏置力，以将翻盖保持在关闭位置。 用户激活的磁场发生器被布置为与第一和第二磁性物体中的至少一个相邻，并且相对于弹簧构件的偏压力减小第一和第二磁性物体之间的磁吸引力，使得翻盖被推动 到开放的位置。

公开(公告)号：US06016431A

公开(公告)日：2000-01-18

申请号：US841193

申请日：1997-04-29

Applicant: Howard Eugene Holshouser

Inventor： Howard Eugene Holshouser

IPC: H01Q1/24 ,  H01Q9/36 ,  H01Q11/08 ,  H04Q7/20

CPC classification number: H01Q1/244 ,  H01Q1/24 ,  H01Q11/08 ,  H01Q9/36

Abstract: Radiotelephones configured with integrated matching circuit components in the housing and antenna are disclosed. The present invention configures the antenna and the associated housing receiving passage to define a capacitor and inductor to match the differing impedances generated by retractable top load antennas (retracted and extended impedances) without requiring a separate switching circuit and wiping contacts.

Abstract translation: 公开了在壳体和天线中配置有集成匹配电路部件的无线电话。 本发明将天线和相关联的壳体接收通道配置为限定电容器和电感器以匹配由可伸缩顶部负载天线（缩回和扩展阻抗）产生的不同阻抗，而不需要单独的开关电路和擦拭触点。