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91. 发明授权

US4942605A Security handset 失效
标题翻译：安全手机
公开(公告)号：US4942605A
公开(公告)日：1990-07-17
申请号：US264992
申请日：1988-10-28
申请人： Donald T. McClain
发明人： Donald T. McClain
IPC分类号： H04M1/68 , H04M1/03 , H04M1/06 , H04M1/08 , H04M1/19
CPC分类号： H04M1/68 , H04M1/19
摘要： A security device for use with a telephone handset having a microphone and an ear transducer is disclosed. It is adapted to prevent eavesdropping while the handset is in an on-hook position. The security device is comprised of switching assembly disposed in the handset adapted to disable the transducers. The switching assembly is switched to a first state when the handset is placed within a first predetermined orientation corresponding to a secure mode and is switched to a second state when the handset is placed within a second predetermined orientation corresponding to an operative mode.
摘要翻译：公开了一种用于具有麦克风和耳转换器的电话听筒的安全装置。它适用于在手机处于挂机位置时防止窃听。安全装置包括设置在手机中的切换组件，其适于禁用换能器。当手机被放置在对应于安全模式的第一预定方向内时，切换组件切换到第一状态，并且当手机放置在对应于操作模式的第二预定方向时，切换组件切换到第二状态。

92. 发明授权

US4837819A Security handset 失效
标题翻译：安全手机
公开(公告)号：US4837819A
公开(公告)日：1989-06-06
申请号：US130190
申请日：1987-12-08
申请人： Donald T. McClain
发明人： Donald T. McClain
IPC分类号： H04M1/06 , H04M1/19 , H04M1/68
CPC分类号： H04M1/68 , H04M1/19
摘要： A security device for use with a telephone handset having a microphone and an ear transducer is disclosed. It is adapted to prevent eavesdropping while the handset is in an on-hook position. The security device is comprised of switching means disposed in the handset adapted to disable the transducers. The switching means is switched to a first state when the handset is placed within a first predetermined orientation corresponding to a secure mode and is switched to a second state when the handset is placed within a second predetermined orientation corresponding to an operative mode.

93. 发明授权

US4584702A Noise cancelling telephone transmitter insertable in telephone handset receptacle 失效
标题翻译：降噪电话发射机可插入电话听筒插座
公开(公告)号：US4584702A
公开(公告)日：1986-04-22
申请号：US562930
申请日：1983-12-19
申请人： Wesley F. Walker, Jr.
发明人： Wesley F. Walker, Jr.
IPC分类号： H04M1/19 , H04R1/22 , H04R19/01 , H04M1/03
CPC分类号： H04M1/19 , H04R1/222
摘要： A noise cancelling telephone transmitter comprising a cap and a cup coupled together so as to form an assembly insertable as a unit in the receptacle of a telephone handset. The cap is provided with an opening for passing sound. The inlet of the cap opening is covered by an acoustically deformable material such as a Mylar membrane. An electret microphone is mounted within the assembly such that the microphone acoustic entrance faces the outlet of the cap opening. A ring-shaped acoustic damping element is interposed between the cap underside and the plane of the microphone acoustic entrance. The cap is provided with a depending acoustic baffle which surrounds the damping element proximate the plane of the microphone acoustic entrance.
摘要翻译：一种降噪电话发射机，包括联接在一起的盖和杯，以形成可作为单元插入电话手机的插座中的组件。盖子设有一个通过声音的开口。盖开口的入口由诸如聚酯薄膜之类的可声学变形的材料覆盖。驻极体麦克风安装在组件内，使得麦克风声学入口面向盖开口的出口。环形的声音阻尼元件被插入在盖子下侧和麦克风声学入口的平面之间。盖设置有靠近麦克风声学入口的平面的阻尼元件的悬挂声挡板。

94. 发明授权

US4439645A Sound attenuating earcup assembly with outside communication capability 失效
标题翻译：具有外部通信能力的声衰减耳塞组件
公开(公告)号：US4439645A
公开(公告)日：1984-03-27
申请号：US362508
申请日：1982-03-26
申请人： John P. Scalzo
发明人： John P. Scalzo
IPC分类号： H04M1/19 , H04R1/10
CPC分类号： H04M1/19 , H04R1/1025 , H04R1/1041 , H04R1/1083 , H04R2420/01
摘要： A sound attenuating earcup assembly having ambient communication capability without the necessity of removing the assembly in which a cup or shell adapted to fit over the wearer's ear is made of a relatively hard sound attenuating material and is formed with three wall openings each extending from the outer surface of the shell to the interior and each of which is provided with an external countersink. The first opening receives the battery casing having an externally removable cover which holds the casing onto the shell with its terminals located within the shell. The second opening receives the outside communication unit with the microphone facing outwardly and the major portion of the unit and its terminals retained inside the shell by a detachable fastener. The switch actuating element extends outwardly through the third opening from the body of the switch carrying the switch terminals. A protective sleeve screwed onto a portion of the switch post to hold the switch in position surrounds the actuator to reduce the possibility of accidental actuation. The earphone is disposed in a recess in a pad of sound absorbing material in the shell. Where the assemblies are used in pairs for a binaural effect only one assembly is provided with a switch. Means is provided for connecting the earcup carried elements to external electronics so as to charge said battery from a power source in said external electronics.
摘要翻译：具有环境通信能力的声音衰减耳罩组件，而不需要去除适合于佩戴在耳朵上的杯子或壳体的组件，其由相对硬的声音衰减材料制成，并且形成有三个壁开口，每个壁开口从外部延伸壳体的表面到内部，并且每个表面设置有外部埋头孔。第一开口接收具有外部可移除的盖的电池壳体，其将壳体保持在壳体上，其端子位于壳体内。第二开口接收外部通信单元，麦克风面向外，并且单元的主要部分及其端子通过可拆卸的紧固件保持在壳体内。开关致动元件从承载开关端子的开关的主体向外延伸穿过第三开口。拧在开关柱的一部分上以将开关保持在适当位置的保护套筒围绕致动器以减少意外致动的可能性。耳机设置在壳体中的吸音材料垫的凹部中。在组合件成对使用双耳效应的情况下，仅一个组件设置有开关。提供了用于将耳机携带的元件连接到外部电子设备的装置，以便从所述外部电子设备中的电源对所述电池充电。

95. 发明授权

US4065362A Purification of organic isocyanates 失效
标题翻译：有机异氰酸酯的纯化
公开(公告)号：US4065362A
公开(公告)日：1977-12-27
申请号：US582803
申请日：1975-06-02
申请人： Yushin Kataoka , Tetsuo Harada , Kenji Takagi
发明人： Yushin Kataoka , Tetsuo Harada , Kenji Takagi
IPC分类号： C07C265/00 , B01D3/34 , C07C20060101 , C07C67/00 , C07C241/00 , C07C263/10 , C07C265/04 , C07C265/12 , C08G20060101 , H04M1/19
CPC分类号： C07C263/20
摘要： The present invention provides a process for purifying an organic isocyanate which comprises heating an organic isocyanate in admixture with a treating agent selected from the group consisting of a metal salt of mercaptobenzothiazol, a dithiocarbamic acid derivative, an alkyl-substituted phenol, a thio-bisphenol, and a triaryl phosphite at a temperature not lower than 100.degree. C and subsequently distilling the thusly treated mixture to recover a purified organic isocyanate.
摘要翻译：本发明提供一种纯化有机异氰酸酯的方法，其包括将有机异氰酸酯与选自巯基苯并噻唑的金属盐，二硫代氨基甲酸衍生物，烷基取代的酚，硫代双酚的处理剂混合加热和不低于100℃的亚磷酸三芳基酯，随后蒸馏由此处理的混合物以回收纯化的有机异氰酸酯。

96. 发明授权

US3995113A Two-way acoustic communication through the ear with acoustic and electric noise reduction 失效
标题翻译：通过耳机的双向声学通信具有声学和电噪声降低
公开(公告)号：US3995113A
公开(公告)日：1976-11-30
申请号：US593586
申请日：1975-07-07
申请人： Okie Tani
发明人： Okie Tani
IPC分类号： H04R1/10 , H04R3/00 , H04M1/19
CPC分类号： H04R1/1083 , H04R1/1016 , H04R1/46
摘要： Acoustic communication permitting reception of acoustic signals by converting the transmitted electric signals into acoustic signals by means of an apparatus to be simply inserted in the ear hole of a person and simultaneously permitting transmission of the voice of said person by converting the same into electric signals by means of said apparatus when inserted in the ear hole. The apparatus includes means including a leak hole and means including a compensating hole in the main body of the apparatus, the two holes cooperating to cancel the effect of ambient sound, when the device is in use.
摘要翻译：声学通信允许通过将被发送的电信号转换为声信号的接收声信号，借助于简单地插入到人的耳孔中的装置，并且同时允许通过将所述人的声音转换为电信号而将其转换为电信号当插入耳孔时所述装置的装置。该装置包括一个装置，该装置包括一个泄漏孔和装置，该装置在该装置的主体中包括一个补偿孔，当这个装置在使用中时，这两个孔协调消除环境声音的影响。

97. 发明授权

US3731010A Latching telephone cut-off switch 失效
标题翻译：锁定电话切断开关
公开(公告)号：US3731010A
公开(公告)日：1973-05-01
申请号：US3731010D
申请日：1972-03-15
申请人： GOODRICH R
发明人： GOODRICH R
IPC分类号： H04M1/03 , H04M1/19
CPC分类号： H04M1/03
摘要： In a telephone cut-off device for a telephone transmitter, which comprises an insert housing disposed between the mouthpiece of the transmitter and the main transmitter housing, having a spring switch means therein and a slidable switch actuator extending outwardly from the device, the improvement which comprises means for locking the actuator in a depressed position relative to the cut-off device causing a displacement of the spring switch while the actuator is so locked.
摘要翻译：在用于电话发射器的电话切断装置中，其包括设置在发射器的接口与主变送器壳体之间的插入壳体，其中具有弹簧开关装置和从装置向外延伸的可滑动的开关致动器，其改进在于包括用于将致动器相对于切断装置锁定在凹陷位置的装置，当致动器被锁定时导致弹簧开关的移位。

98. 发明授权

US3540546A Telephone silencer 失效
标题翻译：电话沉默
公开(公告)号：US3540546A
公开(公告)日：1970-11-17
申请号：US3540546D
申请日：1969-12-08
申请人： THOMAS C DARK
发明人： DARK THOMAS C
IPC分类号： H04M1/19 , F01N7/00
CPC分类号： H04M1/19

99. 发明授权

US3499991A Voice-excited vocoder 失效
标题翻译： VOICE-EXCITED VOCODER
公开(公告)号：US3499991A
公开(公告)日：1970-03-10
申请号：US3499991D
申请日：1967-08-01
申请人： PHILCO FORD CORP
发明人： CASSEL LAWRENCE E , SOSNOWSKI JOSEPH A
IPC分类号： H04B1/66 , H04M1/19
CPC分类号： H04B1/667

100. 发明授权

US2540873A Auxiliary voice screen for telephone mouthpieces 失效
标题翻译：辅助语音屏幕用于电话听筒
公开(公告)号：US2540873A
公开(公告)日：1951-02-06
申请号：US8501749
申请日：1949-04-01
申请人： IRVING FLORMAN
发明人： IRVING FLORMAN
IPC分类号： H04M1/19
CPC分类号： H04M1/19

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