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11. 外观设计

USD274813S Phonograph stylus 失效
公开(公告)号：USD274813S
公开(公告)日：1984-07-24
申请号：US344817
申请日：1982-02-01
申请人： John C. Jones , Robert L. Deschamps
设计人： John C. Jones , Robert L. Deschamps

12. 外观设计

USD274810S Phonographic cartridge 失效
公开(公告)号：USD274810S
公开(公告)日：1984-07-24
申请号：US344814
申请日：1984-07-24
申请人： John C. Jones , Robert L. Deschamps
设计人： John C. Jones , Robert L. Deschamps

13. 发明授权

US3989905A Microphone 失效
标题翻译：麦克风
公开(公告)号：US3989905A
公开(公告)日：1976-11-02
申请号：US640580
申请日：1975-12-15
申请人： C. Roger Anderson , Eduard A. Rusch , Charles E. Seeler
发明人： C. Roger Anderson , Eduard A. Rusch , Charles E. Seeler
IPC分类号： H04R1/02 , H04R1/08 , H04R1/32
CPC分类号： H04R1/02 , H04R1/08 , H04R1/32
摘要： The disclosure describes improved apparatus for adjusting a unidirectional microphone in order to reduce the electrical output due to mechanical shocks applied to the microphone casing. The microphone includes a diaphragm supported by a housing which is resiliently mounted on the casing. The adjustment apparatus includes a mounting diaphragm positioned between the outer casing and the housing, and an enclosed chamber provided with an air leak which can alter the compliance and resistance of the mounting diaphragm in a controlled manner. A method of balancing the size or value of the elements of the microphone to provide pneumatic shock cancellation is also described.
摘要翻译：本公开描述了用于调节单向麦克风的改进的装置，以便由于施加到麦克风壳体的机械冲击而减少电输出。麦克风包括由壳体支撑的隔膜，壳体弹性地安装在壳体上。调节装置包括位于外壳和壳体之间的安装隔膜，以及设置有空气泄漏的封闭室，其可以以受控的方式改变安装隔膜的顺应性和电阻。还描述了平衡麦克风的元件的尺寸或值以提供气动冲击抵消的方法。

14. 发明授权

US5692057A Wireless electronic power defeat techniques 失效
标题翻译：无线电子电源失败技术
公开(公告)号：US5692057A
公开(公告)日：1997-11-25
申请号：US672431
申请日：1996-06-28
申请人： Steven M. Grad , Irwin P. Singh
发明人： Steven M. Grad , Irwin P. Singh
IPC分类号： H04R3/00 , H04B3/00 , H02B1/00
CPC分类号： H04R3/00
摘要： A wireless audio system, including an audio and radio frequency module, that is prevented from being accidentally turned off by using an electronic gate responsive to a gate signal for coupling electrical power from a source to the module which bypasses the normal mechanical power switch. Means are provided for generating the gate signal in response to operation by the user so that the user cannot accidentally turn off the system by moving the power switch to its off position.
摘要翻译：包括音频和射频模块的无线音频系统通过使用响应于门信号的电子门被防止意外关闭，用于将来自源的电力耦合到绕过正常机械功率开关的模块。提供了用于响应于用户的操作产生门信号的装置，使得用户不能通过将电源开关移动到其关闭位置而意外关闭系统。

15. 发明授权

US5444790A Microphone windscreen mounting 失效
标题翻译：麦克风挡风玻璃安装
公开(公告)号：US5444790A
公开(公告)日：1995-08-22
申请号：US203322
申请日：1994-02-28
申请人： James H. Kogen
发明人： James H. Kogen
IPC分类号： H04R1/08 , H04R25/00
CPC分类号： H04R1/086
摘要： A mounting for detachable securing a windscreen to a microphone includes a magnetic ring on one of the windscreen or microphone and a complementary steel ring on the other of the windscreen or microphone. A plastic ring is provided to hold the magnetic ring. The magnetic engagement between the magnetic ring and the steel ring will permit firm coupling of the windscreen and microphone in use. The mounting permits easy disengagement in the event the windscreen is not needed, or to permit maintenance or repair of the microphone. The plastic ring is retained on the microphone between the body and the head, which are interconnected by complementary threads on the exterior of the body/head and the interior of the other of the head/body.
摘要翻译：用于将挡风玻璃可拆卸地固定到麦克风的安装件包括在挡风玻璃或麦克风之一上的磁环和在挡风玻璃或麦克风另一个上的互补钢环。提供塑料环以保持磁环。磁环和钢环之间的磁性接合将允许风挡玻璃和麦克风在使用中牢固地连接。在不需要挡风玻璃的情况下或者允许维护或修理麦克风的情况下，安装允许容易的脱离。塑料环保持在主体和头部之间的麦克风上，该主体和头部通过主体/头部外部的互补螺纹和头部/主体的另一个内部互连。

16. 发明授权

US4862507A Microphone acoustical polar pattern converter 失效
标题翻译：麦克风声极极化图案转换器
公开(公告)号：US4862507A
公开(公告)日：1989-08-29
申请号：US3721
申请日：1987-01-16
申请人： Alan P. Woodard
发明人： Alan P. Woodard
IPC分类号： H04R1/08 , H04R1/34
CPC分类号： H04R1/342 , H04R1/08
摘要： A microphone acoustical polar pattern converter conveniently converts the acoustical polar pattern of a microphone from cardioid to supercardioid and back at will. The converter includes primarily a body of a tubular body portion fitted forward of the microphone head. Most preferably, the body is formed of open pore plastic, with a pore size of 70 microns.
摘要翻译：麦克风声学极性图案转换器方便地将麦克风的声学极性图案从心形转换为超心形并且随意地返回。转换器主要包括安装在麦克风头前面的管状体部分的主体。最优选地，主体由孔径为70微米的开孔塑料形成。

17. 外观设计

USD293319S Teleconference control unit 失效
公开(公告)号：USD293319S
公开(公告)日：1987-12-22
申请号：US803869
申请日：1985-11-04
申请人： Hari Matsuda , Carl J. Whitaker
设计人： Hari Matsuda , Carl J. Whitaker

18. 发明授权

US4712231A Teleconference system 失效
标题翻译：电话会议系统
公开(公告)号：US4712231A
公开(公告)日：1987-12-08
申请号：US597734
申请日：1984-04-06
申请人： Stephen D. Julstrom
发明人： Stephen D. Julstrom
IPC分类号： H04M3/56 , H04M1/60
CPC分类号： H04M3/56
摘要： A teleconferencing system for connection to telephone lines or other communication links. Directionally gated microphones receive local speech for audio send signal transmission to the far end on the telephone line, and audio receive signals from the far end are output locally via a loudspeaker. The outgoing send signals and incoming receive signals are automatically suppressed in accordance with user and setup controls (volume and suppression) and in accordance with the strength of the incoming receive signal. When the system is in a send mode, the receive signals are suppressed to a lower audible level; when the system is in a receive mode, the send signals are suppressed. The mode of the system is switched during conversation. When simultaneous talking (speech from both ends) occurs, priority is given to the interrupting party.
摘要翻译：用于连接到电话线或其他通信链路的电话会议系统。定向门控麦克风接收本地语音以将音频发送信号传输到电话线上的远端，并且来自远端的音频接收信号通过扬声器本地输出。根据用户和设置控制（音量和抑制），并根据输入接收信号的强度自动抑制输出发送信号和输入接收信号。当系统处于发送模式时，接收信号被抑制到较低的听觉水平; 当系统处于接收模式时，发送信号被抑制。在通话期间切换系统的模式。当发生同时通话（来自两端的语音）时，优先考虑中断方。

19. 发明授权

US4658425A Microphone actuation control system suitable for teleconference systems 失效
标题翻译：麦克风启动控制系统适用于电话会议系统
公开(公告)号：US4658425A
公开(公告)日：1987-04-14
申请号：US881523
申请日：1986-06-30
申请人： Stephen D. Julstrom
发明人： Stephen D. Julstrom
IPC分类号： H04M3/56 , H04M9/08 , H04R3/00
CPC分类号： H04M9/08 , H04M3/569 , H04R2201/401
摘要： A microphone and loudspeaker arrangement for use in a teleconference system, wherein a plurality of microphones are held in a fixed relationship to a loudspeaker. The microphones are independently gated ON in response to (1) speech picked up by the microphone, (2) a loudspeaker signal driving the loudspeaker and (3) an electrical signal related to the microphone signals of the other associated microphones. A noise adapting threshold circuit generates a voltage level representative of background noise which is compared with the microphone signal of a respective microphone for determining whether the microphone is receiving speech. A decisional circuitry monitors the microphone signal of the associated microphone with respect to a MAX bus which carries microphone signals representative of the level of microphone signals at the other microphones. The decisional circuitry generates a signal indicating that the associated microphone is the first loudest microphone signal.
摘要翻译：一种用于电话会议系统的麦克风和扬声器装置，其中多个麦克风与扬声器保持固定关系。响应于（1）由麦克风拾取的语音，（2）扬声器信号驱动扬声器和（3）与其他相关联的麦克风的麦克风信号相关的电信号，麦克风独立地选通ON。噪声适应阈值电路产生代表背景噪声的电压电平，其与相应麦克风的麦克风信号进行比较，以确定麦克风是否正在接收语音。决定电路监测相关麦克风的麦克风信号相对于MAX总线，MAX总线携带代表麦克风信号水平的麦克风信号。决定电路产生一个信号，指示相关联的麦克风是第一个最响亮的麦克风信号。

20. 发明授权

US4620317A Tabletop speaker assembly 失效
标题翻译：台式扬声器总成
公开(公告)号：US4620317A
公开(公告)日：1986-10-28
申请号：US597249
申请日：1984-04-05
申请人： Carl R. Anderson
发明人： Carl R. Anderson
IPC分类号： H04R1/28 , H04R1/34 , H04R1/02 , H04R1/32
CPC分类号： H04R1/345 , H04R1/288
摘要： A speaker assembly is disclosed for use on a desk or tabletop, in conjunction with a telecommunication or teleconferencing system. The assembly includes a speaker supported above a generally conical and circular base having one or more acoustically reflective surfaces angled away from the speaker. A cover or cabinet is mounted around the rear of the speaker, and the speaker is attached to the assembly by a support plate mounted within the cover. The height of the interior of the cover is approximately the same as the height of the speaker. A plurality of bushings connect the support plate to the base. Sound exits from the assembly at substantially the level of the surface upon which the assembly rests. In the prefered embodiment, the conical base has a truncated upper portion, preferably formed as an inverted conical cavity coencentric with the circular base.
摘要翻译：公开了一种扬声器组件，用于与电视或电话会议系统结合使用在桌子或桌面上。该组件包括支撑在大致圆锥形和圆形底座上方的扬声器，该扬声器具有一个或多个远离扬声器的声反射表面。在扬声器的后部安装有一个盖子或机柜，扬声器通过安装在盖子内的支撑板连接在组件上。盖的内部高度与扬声器的高度大致相同。多个衬套将支撑板连接到基座。声音从组件的基本上在组件所在的表面的水平处离开。在优选实施例中，圆锥形基部具有截顶部，优选地形成为与圆形基部同心的倒锥形腔。

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