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1.发明授权Method of transfer of switching order information for transmission of PCM words 失效传输PCM字的切换顺序信息的传输方法
公开(公告)号：US3925620A
公开(公告)日：1975-12-09
申请号：US32761273
申请日：1973-01-22
CPC分类号： H04Q11/0407
摘要： A PCM exchange comprises a space stage between a first and a second time stage, and has switching order memories for the control of time and space interchanges arranged in time substages each including a substage in the first time stage and a substage in the second time stage. Upon the connection and the disconnection of a communication path through the exchange, the respective switching order memories must be loaded with switching order information stored in a switching order unit. In order to reduce in a great extent a supplementary communication system between the switching order unit and the decentralized switching order memories, the switching order information is transferred via the space stage to the respective time substages via the same files on which the regular PCM words are transferred. The switching order information is transferred during unchangeably predetermined time slots which are not used for the transmission of PCM words.
摘要翻译： PCM交换机包括在第一和第二时间段之间的空间级，并且具有用于控制时间和空间交换的切换顺序存储器，时间和空间交换机设置在时间分段中，每个子站包括第一时间段中的分站和第二时间段中的分站 。 在通过交换机的通信路径的连接和断开连接时，相应的交换顺序存储器必须加载存储在交换订单单元中的交换订单信息。 为了在很大程度上减少切换顺序单元和分散式交换顺序存储器之间的辅助通信系统，切换顺序信息经由空间级通过常规PCM单词所在的相同文件传送到各个时间段 转入。 切换顺序信息在不用于传输PCM字的不可更改的预定时隙期间传送。
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2.发明授权Telecommunication plant in which a wide-band channel if wanted is connected by the side of a telephone connection 失效如果想要的话，宽带频道的通信工厂通过电话连接侧连接
公开(公告)号：US3922491A
公开(公告)日：1975-11-25
申请号：US42445973
申请日：1973-12-13
CPC分类号： H04Q3/00
摘要： In a telecommunication system, a wide-band channel when desired is connected next to a telephone connection by a system which comprises a first line system intended for telephone traffic and a second line system with wide-band communication channels intended for data transmission, picture transmission, etc. At least some subscribers have a special apparatus for wide-band connections and an apparatus attachment by the side of a subscriber''s telephone. The high operating costs for a wide-band connection requires that the connection not be established before it is actually to be used and that it be released after use without the telephone connection being disconnected and restored. Thus, a picture transmission can be connected and disconnected several times during a telephone call but it is inconvenient to send a subscriber''s telephone number each time, and no changes in the telephone exchange can be accepted. According to the invention each of such subscribers has at least one change-over switch in his apparatus attachment under control of the subscriber. When a wide-band connection is required between the two parties in an arranged telephone connection, each of the parties operates his change-over switch which causes a call to a control center and the setting of a signal connection. There is also initiated a signal interchange between the subscriber''s equipments via the arranged telephone connection utilized by the control center for connecting the special apparatus of the subscribers via a wide-band connection.
摘要翻译： 在电信系统中，当需要时，宽带信道通过包括用于电话业务的第一线路系统和具有用于数据传输的宽带通信信道的第二线路系统的系统连接在电话连接旁边，图像传输 等等。至少一些用户具有用于宽带连接的专用设备和用户电话侧的装置附件。 宽带连接的高运行成本要求在实际使用之前不建立连接，并且在使用之后释放连接，而不会断开和恢复电话连接。 因此，在电话呼叫期间，可以连接和断开图像传输多次，但是每次发送用户的电话号码都是不方便的，并且不能接受电话交换机的改变。 根据本发明，在用户的控制下，每个这样的用户在他的装置附件中具有至少一个转换开关。 当在安排的电话连接中双方之间需要宽带连接时，每个方操作他的转换开关，该切换开关导致对控制中心的呼叫和信号连接的设置。 还通过由控制中心利用的布置的电话连接，在用户设备之间发起信号交换，用于经由宽带连接连接用户的专用设备。
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公开(公告)号：US3916114A
公开(公告)日：1975-10-28
申请号：US44441974
申请日：1974-02-21
发明人： PERSSON KJELL ARNE
摘要： In a subscriber''s telephone instrument which utilizes keyoperated voice frequency RC-oscillators, a constant current circuit comprising three transistors and at least one diode, controls the operating current fed to the oscillators from the lines via which the instrument is connected to the exchange.
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4.发明授权
公开(公告)号：US3903482A
公开(公告)日：1975-09-02
申请号：US47689774
申请日：1974-06-06
CPC分类号： H03L7/148
摘要： In a phase locked loop synchronized oscillator wherein a phase detector compares an oscillator frequency and a synchronizing frequency to derive a voltage for controlling the oscillator frequency there is provided a memory circuit between the phase detector and the oscillator for holding the instantaneous value of the detector output and a blocking circuit for sensing for interferences in the control voltage to prevent the memory from changing the value hold before the interference occurred.
摘要翻译： 在锁相环同步振荡器中，相位检测器比较振荡器频率和同步频率以导出用于控制振荡器频率的电压，在相位检测器和振荡器之间提供存储电路，用于保持检测器输出的瞬时值 以及阻塞电路，用于感测控制电压中的干扰，以防止存储器在发生干扰之前改变保持值。
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5.发明授权
公开(公告)号：US3890566A
公开(公告)日：1975-06-17
申请号：US42997874
申请日：1974-01-02
CPC分类号： G01R31/022 , B29C37/0092 , B29C47/0014 , B29C47/0016 , B29C47/88 , B29L2031/3462 , H01B13/0036 , H01B13/06
摘要： A method and an arrangement for voltage testing and drying an insulated electrical conductor. The insulated conductor is, after the extrusion process, brought through a pipe which is partly closed by a lead-in attached to each end of the pipe. The pipe contains a number of metal spheres which surround the conductor running through the pipe. The movement of the conductor causes the spheres to move around the conductor thus drying the same. An outer voltage source can be connected to a metallic strip inside the pipe and, due to the metal spheres, a test voltage is applied across the insulation of the wire.
摘要翻译： 一种用于电压测试和干燥绝缘电导体的方法和装置。 绝缘导体在挤出过程之后通过连接到管的每个端部的引入部分封闭的管道。 管道包含围绕穿过管道的导体的多个金属球体。 导体的运动导致球体围绕导体移动，从而使其干燥。 外部电压源可以连接到管道内的金属条，并且由于金属球体，跨越导线的绝缘层施加测试电压。
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公开(公告)号：US3886755A
公开(公告)日：1975-06-03
申请号：US36742573
申请日：1973-06-06
CPC分类号： H02G1/06
摘要： There is disclosed an assemblage for laying an underground cable. This assemblage includes a movable but stationarily operated power plant, a digging tool and a cable laying tool. The digging tool and the cable laying tool are connected to the power plant so that they can be extended from the power plant to a selected distance and are then pulled back to the power plant. While being so pulled back the digging tool digs a trench and the cable laying tool feeds cable to be laid into the trench as the same is being formed. A brake is mounted on the cable laying tool and co-acts with the same so as to avoid slack in the cable while the same is being laid.
摘要翻译： 公开了用于铺设地下电缆的组合件。 该组合件包括可移动但是静态操作的发电厂，挖掘工具和电缆敷设工具。 挖掘工具和电缆铺设工具连接到发电厂，使其可以从发电厂延伸到选定的距离，然后被拉回到发电厂。 虽然如此
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7.发明授权
公开(公告)号：US3883686A
公开(公告)日：1975-05-13
申请号：US39940073
申请日：1973-09-20
CPC分类号： H04N19/00
摘要： The invention relates to a method and a device for reducing the effect of a loss of information during transmission at compressed band width, particularly during transmission at compressed band width of a PCM-signal. Each of the serially generated PCM-words indicates the light intensity in picture elements that are serially scanned in a TV-frame, the number of transmitted PCMwords in each TV-frame being less than the number of generated PCM-words. According to the invention the effect of the loss of picture information is reduced in such a manner that when band width comprsssion is made TV-line by TV-line the loss will alternately occur on the left and right edges of the TV-lines on the screen viewed downwards in consecutive order and when band width compression is made TV-field by TV-field the loss will alternately occur on the upper and lower edges of the screen, the loss of picture information only appearing as a lesser degree of resolution along the respective edges of the screen.
摘要翻译： 本发明涉及一种用于在压缩带宽的传输过程中减少信息丢失的影响的方法和装置，特别是在PCM信号的压缩带宽传输期间。 串行生成的PCM字中的每一个表示在TV帧中串行扫描的像素中的光强度，每个TV帧中发送的PCM字的数量小于生成的PCM字的数量。 根据本发明，减少图像信息丢失的效果，使得当通过TV线使带宽压缩成为TV线时，丢失将交替发生在TV线的左侧和右边缘上 屏幕以连续顺序向下观看，当通过电视场进行带宽压缩时，屏幕的上下边缘将交替出现损失，图像信息的丢失仅沿着屏幕的较小程度出现 屏幕的各个边缘。
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公开(公告)号：US3870955A
公开(公告)日：1975-03-11
申请号：US36198673
申请日：1973-05-21
发明人： OUVRIER GUNTHER
CPC分类号： H04Q11/02
摘要： In a telecommunication system having a central control unit and a telecommunication network wherein there are a plurality of stations interconnected by bidirectional primary links used during normal fault free operation and spare sections used when there is a fault in at least one of the primary links and wherein the central control unit initiates the changeover to selected spare sections upon detection of a fault, there is switchover apparatus in at least one of the stations and controlled by the central control unit for switching connections from primary links to space sections utilized by sub-routes.
摘要翻译： 在具有中央控制单元和电信网络的电信系统中，其中存在通过在正常无故障运行期间使用的双向主链路互连的多个站和当至少一个主链路中存在故障时使用的备用区段，并且其中 中央控制单元在检测到故障时启动对所选备用部分的切换，在至少一个站中有切换装置，并由中央控制单元控制，用于切换从主要链路到由子路由使用的空间部分的连接。
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9.发明授权
公开(公告)号：US3860465A
公开(公告)日：1975-01-14
申请号：US32851573
申请日：1973-02-01
发明人： MATZNER EVA , STERNBECK OLAF
IPC分类号： H01L21/00 , H01L29/8605 , H01L7/50
CPC分类号： H01L29/8605 , H01L21/00 , Y10S148/051 , Y10S148/085 , Y10S148/136
摘要： The invention refers to a method for obtaining an accurately determined high resistance in a resistor produced in a single crystalline substrate in the form of a diffused region limited in length, width and depth direction, which region is covered with an oxide layer and is provided with a first and a second window in the oxide layer for connection of two terminal contacts. According to the invention, a third window is made in the oxide layer on the top of the diffused region by means of a conventional photo-resist and etching technique whereupon the diffused region is etched in the depth direction through the third window for a predetermined time period during which such a quantity of material is removed that the resistance of the quantity of material remaining in the diffused region, measured between the first and second window, will be equal to a predetermined resistance value.
摘要翻译： 本发明涉及一种在长度，宽度和深度方向上限制的扩散区形式的单晶衬底中制造的电阻器中精确确定的高电阻的方法，该区域被氧化物层覆盖，并且具有 用于连接两个端子触点的氧化物层中的第一和第二窗口。 根据本发明，通过常规的光刻胶和蚀刻技术在扩散区域顶部的氧化物层中形成第三窗口，于是扩散区域沿深度方向通过第三窗口蚀刻预定时间 消除这样的材料量的时间段，即在第一和第二窗口之间测量的在扩散区域中剩余的材料的数量的电阻将等于预定的电阻值。
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10.发明授权
公开(公告)号：US3848093A
公开(公告)日：1974-11-12
申请号：US33640273
申请日：1973-02-28
发明人： EDSTROM N
CPC分类号： H04J3/172 , H04B7/2121
摘要： The invention relates to a method and a device for increasing the transmission capacity of a time division synchronous satellite telecommunication system in which each ground station has a control processor which is arranged to assign continuously time slots out of a time slot pool to the ground stations in proportion to their varying demands for transmission capacity. According to the invention, it is possible to apply speech interpolation not only to such time slots that are constantly assigned to the ground stations and are transmitted via permanently assigned transmission channels but also to reassignable time slots of the pool, transmitted via temporarily assigned transmission channels.
摘要翻译： 本发明涉及一种用于提高时分同步卫星电信系统的传输容量的方法和装置，其中每个地面站具有一个控制处理器，该控制处理器被设置成将时隙池中的时隙连续地分配给地面站 与传输能力的不同要求成比例。 根据本发明，不仅可以将语音内插应用于经常被分配给地面站并经由永久分配的传输信道发送的时隙，而且还可以经由临时分配的传输信道发送的可重新分配的时隙 。
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