公开(公告)号：USD534159S1

公开(公告)日：2006-12-26

申请号：US29229647

申请日：2005-05-09

申请人： Ryan P. Whitehouse ,  Michael Carpenter

设计人： Ryan P. Whitehouse ,  Michael Carpenter

公开(公告)号：US6069878A

公开(公告)日：2000-05-30

申请号：US769965

申请日：1996-12-19

申请人： Steven G. Christensen

发明人： Steven G. Christensen

IPC分类号： H04M9/02 ,  H04M9/08 ,  H04M3/56 ,  H04J3/02

CPC分类号： H04M9/02 ,  H04M9/08

摘要： A time division multiplexing ("TDM") digital matrix intercom system for connecting intercom stations. The system includes a digital switching system receiving audio input communications signals from at least some of the intercom stations, and sending audio input communications signals to at least some of the intercom stations. The digital switching system includes a TDM system for broadcasting on a TDM bus multiple digital communications signals including such digital audio input signals. The TDM system includes one or more interfaces connecting intercom stations with the TDM bus. The system also includes a signal mixer which is capable of receiving from the TDM bus selected ones of the digital audio input signals, and creating and broadcasting on the TDM bus a custom mixed digital audio output communications signal which is a loudness weighted mix of such selected digital audio input signals which at least one of such selected signals optionally being given a larger weight corresponding to a louder volume than others of the selected signals. A custom mixed digital audio output signal thus may be routed to a selected one of the intercom stations as an audio output communications signal. Preferably the system includes an integrated circuit for producing custom output mix signals.

摘要翻译： 用于连接对讲电台的时分复用（“TDM”）数字矩阵对讲系统。 该系统包括数字交换系统，其接收来自至少一些对讲站的音频输入通信信号，以及向至少一些对讲电台发送音频输入通信信号。 数字交换系统包括用于在TDM总线上广播包括这种数字音频输入信号的多个数字通信信号的TDM系统。 TDM系统包括将对讲站与TDM总线相连接的一个或多个接口。 该系统还包括信号混合器，其能够从TDM总线接收所选择的数字音频输入信号，以及在TDM总线上创建和广播一个定制的混合数字音频输出通信信号，其是这种选择的响度加权混合 数字音频输入信号，其中所选择的信号中的至少一个可选地被给予对应于比所选择的信号中的其他信号更大的音量的较大的权重。 因此，定制的混合数字音频输出信号可以作为音频输出通信信号被路由到所选择的一个对讲电台。 优选地，该系统包括用于产生定制输出混合信号的集成电路。

公开(公告)号：US5883804A

公开(公告)日：1999-03-16

申请号：US687804

申请日：1996-07-19

申请人： Steven G. Christensen

发明人： Steven G. Christensen

IPC分类号： H04H60/04 ,  G06F3/16

CPC分类号： H04H60/04

摘要： A system for recording, editing, processing and playing digital audio in a real-time, non-linear, non-destructive fashion. The system comprises a collection of the following modules: a disk controller for reading and writing disk-based media: an I/O processor for moving data between the disk controllers, I/O devices and connection bus, a DSP processor for processing data that exists on the connection bus, and a sample playback processor for performing memory-based polyphonic digital playback attached to the connection bus. The system's modules are connected via a connection bus that allows the transfer of multiple channels of information simultaneously in synchronism with the system's variable sample clock.

摘要翻译： 用于以实时，非线性，非破坏性方式记录，编辑，处理和播放数字音频的系统。 该系统包括以下模块的集合：用于读取和写入基于磁盘的媒体的磁盘控制器：用于在磁盘控制器，I / O设备和连接总线之间移动数据的I / O处理器，用于处理数据的数据的DSP处理器 存在于连接总线上，以及用于执行附加到连接总线的基于存储器的复音数字回放的样本重放处理器。 系统的模块通过连接总线连接，允许与系统的可变采样时钟同步同时传输多个信道。

公开(公告)号：US5802183A

公开(公告)日：1998-09-01

申请号：US567942

申请日：1995-12-06

申请人： Tom Scheller ,  Scott Posner ,  Art Johnson ,  Pat Henry ,  Irene Teske ,  Mark A. Gilbertson

发明人： Tom Scheller ,  Scott Posner ,  Art Johnson ,  Pat Henry ,  Irene Teske ,  Mark A. Gilbertson

IPC分类号： H04R25/00 ,  H04R25/02

CPC分类号： H04R25/556 ,  H04R25/554 ,  H04R2225/51

摘要： A behind-the-ear assistive listening receiver having a housing containing an RF receiver. The housing includes a cavity in which two or more crystal carriers are removably insertable. Each of the crystal carriers contains an oscillation crystal tuned to a particular frequency corresponding to an RF frequency desired to be received by the user. A switch is provided for permitting the user to select one of the oscillation crystals to automatically tune for the RF receiver to the desired RF frequency. Each crystal carrier may contain visible indicia indicating the frequency to which it is tuned, and the carriers may be positioned in the housing so that the indicia are generally visible to others when the receiver is worn by the user. The assistive listening receiver may also include a conventional hearing aid microphone for converting ambient sounds into an electrical hearing aid signal. A mixer is provided within the housing for mixing the hearing aid signal with the RF signal to provide a mixed output signal. The mixer attenuates the maximum hearing aid signal with respect to the maximum RF signal by about 1 to 10 decibels so that the maximum RF signal will be perceptibly louder to the user than the maximum hearing aid signal.

摘要翻译： 一种耳后辅助听音接收机，其具有包含RF接收机的外壳。 壳体包括两个或多个晶体载体可拆卸地插入的空腔。 每个晶体载体包含调谐到对应于期望由用户接收的RF频率的特定频率的振荡晶体。 提供开关以允许用户选择振荡晶体之一以将RF接收器自动调谐到期望的RF频率。 每个晶体载体可以包含指示其被调谐的频率的可见标记，并且载体可以定位在壳体中，使得当接收器被用户佩戴时，标记通常对其他人可见。 辅助听力接收器还可以包括用于将环境声音转换成电助听器信号的常规助听器麦克风。 混合器设置在壳体内，用于将助听器信号与RF信号混合以提供混合输出信号。 混频器将相对于最大RF信号的最大助听器信号衰减大约1至10分贝，使得最大RF信号对于用户而言比对最大助听器信号的感知响度更大。

公开(公告)号：US4748671A

公开(公告)日：1988-05-31

申请号：US934122

申请日：1986-11-21

申请人： Christopher D. Wiegel

发明人： Christopher D. Wiegel

IPC分类号： H04M1/05 ,  H04R1/02 ,  E05C17/64 ,  E05D7/086 ,  E05D7/10

CPC分类号： H04M1/05 ,  Y10T16/5357 ,  Y10T16/5403 ,  Y10T16/54038

摘要： A microphone boom hinge is comprised of a pair of identical members disposed in locking interfitting relationship, each member having an end to be stationarily disposed on an end of a microphone boom and the other end having a pivot pin and an aperture on spaced apart longitudinally extending ears and configured to rotate about a transverse axis to provide for articulatory motion of an assembled boom.

摘要翻译： 麦克风臂铰链由一对以锁定相互关系设置的相同构件组成，每个构件具有固定地设置在麦克风支架的端部上的端部，另一端具有间隔开的纵向延伸的枢轴销和孔 耳朵并且构造成围绕横向轴线旋转以提供组装的吊杆的铰接运动。

公开(公告)号：US4604628A

公开(公告)日：1986-08-05

申请号：US474557

申请日：1983-03-11

申请人： Roger A. Cox

发明人： Roger A. Cox

IPC分类号： H01Q5/00 ,  H01Q5/02 ,  H01Q5/321 ,  H01Q5/49 ,  H01Q21/12

CPC分类号： H01Q5/49 ,  H01Q5/321

摘要： To provide broad bandwidth in a multiple-band directional antenna, the antenna includes an array of parallel horizontal elements, which are: (1) an open-sleeve dipole as the driven element; (2) a trap director element; and (3) trap reflector elements. The driven element includes: (1) a trap central dipole which is center-fed and has sections self-resonant within the bands of 21.0 to 21.45 megahertz and 14.0 to 14.35 megahertz; and (2) two unequal-length sleeves self-resonant at 28.0 to 29.7 megahertz. The director and reflector elements are resonant in the same bands and are spaced and tuned for directivity of the array.

摘要翻译： 为了在多频带定向天线中提供宽带宽，天线包括平行水平元件的阵列，它们是：（1）作为被驱动元件的开放式偶极子; （2）陷阱指令元素; 和（3）陷阱反射器元件。 驱动元件包括：（1）中心馈电的陷波中心偶极子，并且在21.0至21.45MHz和14.0至14.35MHz的频带内具有自谐振的部分; 和（2）两个不等长的袖子在28.0到29.7兆赫的自谐振。 导向器和反射器元件在相同的频带中谐振，并且被间隔并调谐为阵列的方向性。

公开(公告)号：US4324355A

公开(公告)日：1982-04-13

申请号：US132383

申请日：1980-03-21

申请人： James A. Dust

发明人： James A. Dust

IPC分类号： G11B15/29 ,  B65H17/20

CPC分类号： G11B15/29

摘要： A tape transport has two pinch rollers, either of which presses the tape against the capstan with which that pinch roller coacts in order to advance the tape in the desired direction. When power is off, neither pinch roller should press against its capstan. A retraction mechanism includes a spring acting in a direction to withdraw or retract whichever pinch roller would otherwise bear against its capstan when the power is off. However, when the power is on, the mechanism permits the pinch rollers to function in their usual manner.

摘要翻译： 胶带输送机具有两个夹送辊，其中任何一个将带压紧在主导轴上，夹紧辊与该绞盘共同作用，以将胶带推向所需方向。 当电源关闭时，夹紧辊不应压在其绞盘上。 缩回机构包括当功率关闭时弹簧作用于撤回或缩回任何夹紧辊否则将承受其绞盘的方向上的弹簧。 然而，当电源打开时，机构允许夹送辊以其通常的方式工作。

公开(公告)号：US4190782A

公开(公告)日：1980-02-26

申请号：US927546

申请日：1978-07-24

申请人： Joe F. Guess

发明人： Joe F. Guess

IPC分类号： B06B1/06 ,  H04R17/00 ,  H04R31/00 ,  H01L41/10

CPC分类号： B06B1/0666

摘要： The invention reduces variability of the resonant frequency in piezoelectric ceramic transducers having a vibratory assembly comprising a flexible diaphragm carrying a ceramic disk sensor. The clamped edge of the diaphragm is typically offset from the plane of the vibratory assembly and is coupled to that assembly by generally cylindrical structure having flexibility in a radial direction. That flexibility partially isolates the vibratory assembly from effects such as structural variability of the clamping means and differential thermal expansion at the clamp. The degree of that isolation is preferably selected by suitable design of the coupling structure to provide approximate compensation for thermal effects due to other parameters of the system.

摘要翻译： 本发明降低了具有振动组件的压电陶瓷换能器中的谐振频率的变化性，所述振动组件包括携带陶瓷盘传感器的柔性隔膜。 隔膜的夹紧边缘通常偏离振动组件的平面，并通过在径向上具有柔性的大致圆柱形结构联接到该组件。 这种灵活性部分地将振动组件隔离成诸如夹紧装置的结构变异性和夹具不同热膨胀的影响。 优选地通过耦合结构的适当设计选择隔离度，以提供由于系统的其它参数而导致的热效应的近似补偿。

公开(公告)号：US4139743A

公开(公告)日：1979-02-13

申请号：US816321

申请日：1977-07-18

申请人： Dean W. Flygstad

发明人： Dean W. Flygstad

IPC分类号： H04M1/05

CPC分类号： H04M1/05

摘要： A headset having an ear cup with a beveled spherical socket hole which rotatably supports and seats a spherical boom support swivel. The swivel consists of two half ball elements held in registration on an asymmetrical boom through gripping action of an asymmetrical hole in each of the half ball elements. Opposing ramp projections and sockets in the half ball elements bias the half ball elements in opposing rotational motion about the boom axis when the half balls are urged toward each other by a floating spring retainer plate thus producing a torque on the boom which is tightly gripped by the opposing half ball elements. Opposing outward projections on the boom mate with depressions in the half ball elements to prevent longitudinal sliding of the boom opposite the swivel and adjacent the operator's mouth. The swivel is rotatably held in the beveled spherical socket hole by the floating spring retainer plate having a flanged dish forming a ball seat swivel. Screws fastening the floating spring retainer plate to the ear cup adjust the degree of force on the swivel against the socket hole. A stop in the ear cup acting in conjunction with stops on the half ball elements limit travel of the boom to less than 360.degree.. An outward circular projection on each element of the swivel provides additional support for the swivel to prevent gouging of the ear cup by the boom.

摘要翻译： 一种具有耳罩的耳机，其具有可旋转地支撑和支撑球形支架支架旋转件的斜面球形插座孔。 旋转体由两个半球元件组成，两个半球元件通过每个半球元件中的不对称孔的夹持动作而保持在对称的不对称悬臂上。 当半球通过浮动弹簧保持板相互朝向彼此推动时，半球元件中的相反的倾斜突起和插座以相对于悬臂轴线的相反的旋转运动来偏置半球元件，从而在悬臂上紧紧地夹住扭矩 相对的半球元素。 相对于悬臂上的向外突出物与半球元件中的凹陷配合，以防止悬臂与旋转件相对并且靠近操作者口的纵向滑动。 旋转体通过具有形成球座旋转件的凸缘盘的浮动弹簧保持板可旋转地保持在倾斜的球形插座孔中。 将浮动弹簧固定板固定到耳罩上的螺丝将旋转件上的力量调节到插孔上。 在与半球元件上的止动器作用的耳杯中的停止将动臂的行程限制在小于360度。 在旋转件的每个元件上的向外的圆形突出物为旋转件提供额外的支撑以防止耳罩由吊杆刨削。

公开(公告)号：USD529484S1

公开(公告)日：2006-10-03

申请号：US29237109

申请日：2005-08-25

申请人： Eli Gregory Probst

设计人： Eli Gregory Probst