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1. 发明授权

US4233471A Automatic telecommunication exchange system 失效
标题翻译：自动电信交换系统
公开(公告)号：US4233471A
公开(公告)日：1980-11-11
申请号：US973695
申请日：1978-12-27
申请人： John A. W. Butcher , Michael A. Salino
发明人： John A. W. Butcher , Michael A. Salino
IPC分类号： H04M3/10 , H04Q3/00 , H04B1/72 , H04J3/14
CPC分类号： H04M3/10 , H04Q3/0016
摘要： A system for centralized reporting of alarm conditions in a multinode data handling system includes an alarm concentration unit at each node of the system for collecting alarm conditions. Each alarm concentration unit is coupled to a signal transmission unit which generates alarm messages and transmits the messages to a centralized node. The centralized node includes means for comparing each received messages with previously received messages stored in a memory and for amending the memory when the most recent received message differs from a previously stored message.
摘要翻译：用于集中报告多节点数据处理系统中的报警状态的系统包括：系统各节点处的报警浓度单元，用于收集报警条件。每个报警浓度单元耦合到产生报警消息并将消息发送到集中式节点的信号传输单元。集中式节点包括用于将每个接收的消息与存储在存储器中的先前接收到的消息进行比较的装置，并且用于当最近接收到的消息与先前存储的消息不同时修改存储器。

2. 发明授权

US4431869A Telephone line feed 失效
标题翻译：电话换行
公开(公告)号：US4431869A
公开(公告)日：1984-02-14
申请号：US212347
申请日：1980-12-03
申请人： Anthony W. Sweet
发明人： Anthony W. Sweet
IPC分类号： H04M19/00 , H04M1/00 , H04B3/16
CPC分类号： H04M19/008
摘要： In a telephone line feeding arrangement, the line current is monitored by a multi-resistor network (R.sub.p R.sub.s) and the output of the network applied to the inputs of an operational amplifier (A3). The output of this amplifier, which is a voltage whose value depends on the line current, is compared by a comparator (A4) with a reference voltage (V.sub.R) to produce a control voltage for a variable voltage (VVS), the output of which provides line feeding voltage.In an alternative, the monitoring is effected by connecting the two line wires each via a resistor to one of the inputs of an operational amplifier (A6) whose output is a voltage dependent on line voltage. This voltage is applied to an input of another operational amplifier (A7) where it is in effect added to a reference voltage (V.sub.R). The output of this amplifier (A7) is used to control the variable voltage source (VVS), which in turn controls a constant current source (CCS) whose output provides line current.
摘要翻译：在电话线馈送装置中，线路电流由多电阻网络（RpR）监控，并且网络的输出被施加到运算放大器（A3）的输入。该放大器的输出，其是取决于线路电流的电压，通过比较器（A4）与参考电压（VR）进行比较，以产生可变电压（VVS）的控制电压，其输出提供线路馈电电压。另一方面，通过将两个线路电缆通过电阻器连接到运算放大器（A6）的输入之一来实现监视，运算放大器（A6）的输出是取决于线路电压的电压。该电压被施加到另一运算放大器（A7）的输入端，其中它实际上被添加到参考电压（VR）。该放大器（A7）的输出用于控制可变电压源（VVS），VVS又控制输出提供线电流的恒流源（CCS）。

3. 发明授权

US4345117A Telephone line feed circuit 失效
标题翻译：电话线馈电路
公开(公告)号：US4345117A
公开(公告)日：1982-08-17
申请号：US208559
申请日：1980-11-20
申请人： Anthony W. Sweet
发明人： Anthony W. Sweet
IPC分类号： H04M7/04 , H04M19/00 , H04Q11/04 , H04M1/00 , H04B3/16
CPC分类号： H04Q11/04 , H04M19/008
摘要： To limit the line current dissipation in a telephone system it is considered desirable, especially in electronic systems, for the line current feed to be constant current. In the present arrangement the constant current supplied to the line is made adjustable in accordance with line conditions, especially the voltage between the line wires. A high impedance monitor is connected across the line to monitor the voltage between the two wires and to produce therefrom a reference voltage which is applied to the constant current generator so as to cause it to generate a current for line feed whose value is determined by the line voltage.
摘要翻译：为了限制电话系统中的线路电流消耗，特别是在电子系统中，将线路电流馈送为恒定电流是合乎需要的。在本布置中，提供给线路的恒定电流根据线路条件，特别是线路之间的电压可调。一个高阻抗监测器连接在整个线路上，以监测两根电线之间的电压，并从中产生一个参考电压，该参考电压被施加到恒定电流发生器上，以便使其产生线性馈电电流，其值由线电压。

4. 发明授权

US4212028A Processing pal color television signals 失效
标题翻译：处理彩色电视信号
公开(公告)号：US4212028A
公开(公告)日：1980-07-08
申请号：US938028
申请日：1978-08-30
申请人： John O. Drewery
发明人： John O. Drewery
IPC分类号： H04N11/04 , H04N9/39
CPC分类号： H04N11/048
摘要： In a method and apparatus for transcoding digital PAL color television signals between (i) a 2fsc format consisting of an encoded signal of PAL type sampled at 2fsc and (ii) a 3fsc format consisting of a luminance signal Y at 2fsc and a chrominance signal C sampled at fsc and comprising U+V and U-V on alternate lines (or either the luminance signal or composite chrominance signal by itself), avoid the need to convert the signal to analogue PAL form as an intermediate step. Converting from the 2fsc to the 3fsc format, over the chrominance bandwidth undelayed and 1- and 2-line delayed samples are combined in the proportions 1/4:1/2:1/4, and below the chrominance band the 1-line delayed samples are low-pass filtered, these together providing the luminance signal Y. To provide the chrominance signal C the undelayed and 2-line delayed signals are combined in the proportions -1/4:1/4. The low- and band-pass filters are digital transversal filters operating on adjacent samples in the signal. Transcoding in the other direction is similar.
摘要翻译：在（i）由2fsc采样的PAL类型的编码信号和（ii）由2fsc的亮度信号Y和色度信号C组成的3fsc格式组成的2fsc格式之间对数字PAL彩色电视信号进行代码转换的方法和装置中，以fsc采样，并且在交替行上（或者亮度信号或复合色度信号本身）包括U + V和UV，避免了将信号转换为模拟PAL形式作为中间步骤。从2fsc转换为3fsc格式，在色度带宽无延迟和1和2行延迟采样中以1/4：1/2：1/4的比例组合，并且在色带上低于1行延迟样本被低通滤波，这些一起提供亮度信号Y.为了提供色度信号C，未延迟和2行延迟信号以比例-1/4：1/4组合。低通和带通滤波器是对信号中相邻采样进行操作的数字横向滤波器。另一个方向的代码转换是相似的。

5. 发明授权

US4385380A Digital concentrator switch 失效
标题翻译：数字集中开关
公开(公告)号：US4385380A
公开(公告)日：1983-05-24
申请号：US240228
申请日：1981-03-03
申请人： Frederick H. Rees , Daniel F. Martin , Joseph P. Ryness
发明人： Frederick H. Rees , Daniel F. Martin , Joseph P. Ryness
IPC分类号： H04M7/14 , H04Q11/04 , H04J3/14
CPC分类号： H04Q11/04
摘要： In a fully digital telephone switching system, a digital switch may serve a number of PCM sub systems each having separate forward and reverse highways and each serving a number of subscribers' lines. The highways are grouped in blocks of eight, from which intelligence is received in serial byte-interleaved form and converted by serial-parallel converters to parallel byte-interleaved form. While in this form they are switched to other channels and applied to a super-multiplexer which they leave in parallel byte-interleaved form from which they are restored by another converter to serial byte-interleaved form for application to the switch's outputs. For the reverse channel the arrangement is the reverse of the above, i.e. serial-parallel conversion, switching and parallel-serial conversion to the line multiplex highways. For local calls a loop-back connection is provided via a fixed delay of half a frame time. Thus, if the outputs fail, the arrangement can still handle local calls. Further it is usable on its own as a small exchange.
摘要翻译：在全数字电话交换系统中，数字交换机可以服务多个PCM子系统，每个PCM子系统具有单独的正向和反向高速公路，并且每个服务于多个订户的线路。高速公路被分组成八个块，其中以串行字节交织形式接收智能，并且由串行并行转换器转换成并行字节交织形式。虽然以这种形式，它们被切换到其他通道并且被应用于超级多路复用器，它们以并行的字节交错形式离开，由另一个转换器将它们恢复为串行字节交错形式，以应用于交换机的输出。对于反向信道，该布置与上述相反，即串行并行转换，开关和并行 - 串行转换到线路多路复用高速公路。对于本地呼叫，通过半帧时间的固定延迟来提供环回连接。因此，如果输出失败，则该配置仍然可以处理本地呼叫。此外，它可以自己作为一个小交换。

6. 发明授权

US4357495A Telephone line feed 失效
标题翻译：电话换行
公开(公告)号：US4357495A
公开(公告)日：1982-11-02
申请号：US232913
申请日：1981-02-09
申请人： Anthony W. Sweet , Michael P. Dyer
发明人： Anthony W. Sweet , Michael P. Dyer
IPC分类号： H04M19/00 , H04M1/76 , H04B3/36
CPC分类号： H04M19/008
摘要： The direct current line feed for a telephone subscriber's line is derived from a variable voltage source connected to the line. In one case, the source is series connected in one leg of the line while in the other case it is connected across the line. In the first case there is a constant current source across the line while in the second case the voltage source is a constant current device. In both cases a pair of matching resistors is connected across the line with the center tap grounded to provide a high resistance balanced termination for the line. In both cases a high impedance monitor is connected across the line to monitor the voltage conditions on the line, and this, via a control circuit controls the voltage source and the separate constant current device if provided. This enables line voltage to be adjusted to take account of line length without introducing undesirably large dissipation.
摘要翻译：用于电话用户线路的直流线路馈送源自连接到线路的可变电压源。在一种情况下，源串联连接在一条线上，而另一种情况下，它是跨线连接的。在第一种情况下，在整个线路上存在恒定电流源，而在第二种情况下，电压源是恒定电流器件。在这两种情况下，一对匹配电阻器跨越线路连接，中心抽头接地，为线路提供高电阻平衡端接。在这两种情况下，高阻抗监控器都连接在线路上，以监控线路上的电压状况，并且通过控制电路控制电压源和单独的恒流器件（如果提供）。这样可以调整线路电压以考虑线路长度，而不引入不期望的大耗散。

7. 发明授权

US4345115A Telephone line interface 失效
标题翻译：电话线接口
公开(公告)号：US4345115A
公开(公告)日：1982-08-17
申请号：US214326
申请日：1980-12-08
申请人： Anthony W. Sweet
发明人： Anthony W. Sweet
IPC分类号： H04Q3/42 , H04Q11/04 , H04M1/00 , H04B3/36
CPC分类号： H04Q11/04
摘要： A telephone subscriber's line interface for a system in which the telephone instrument and the connections therefrom to the exchange use analogue, while the exchange is digital is described, in which electro-mechanical components are eliminated.To achieve this a microprocessor serves a group of lines on a multiplexed basis, responding to conditions of the line as determined via a high impedance monitor and analogue-to-digital conversion means. It also responds to control inputs from the rest of the exchange. In response to the above inputs it controls line feed, signalling, etc. via digital-to-analogue conversion means and a line driver.
摘要翻译：一种用于系统的电话用户线路接口，其中电话仪器及其与交换机的连接使用模拟，而交换机是数字的，其中消除了机电组件。为了实现这一点，微处理器在多路复用的基础上对一组线路进行响应，响应于通过高阻抗监视器和模数转换装置确定的线路的条件。它还响应来自其他交易所的控制输入。响应于上述输入，它通过数模转换装置和线路驱动器控制换行，信令等。

8. 发明授权

US4251684A Data storage systems 失效
标题翻译：数据存储系统
公开(公告)号：US4251684A
公开(公告)日：1981-02-17
申请号：US959793
申请日：1978-11-13
申请人： Frederick H. Rees , Dan Bleicher
发明人： Frederick H. Rees , Dan Bleicher
IPC分类号： H04L12/58 , H04Q11/04 , G06F3/00 , H04L15/04
CPC分类号： H04L12/58 , H04Q11/0407
摘要： Queuing of interexchange messages in a multi-exchange digital telecommunication network is provided using a dynamic store into cells of which the messages are placed. A subsidiary control store has a cell for each cell of the message store and each of these cells contains a control word which contains the status-busy/free of its message cell, plus details of the message including the user for which it is stored when the cell is busy. These details include message priorities, so that queues of messages awaiting attention can be assembled in the store.
摘要翻译：在多交换数字电信网络中的交换消息的排队使用动态存储提供到其中放置消息的小区中。辅助控制存储器具有消息存储器的每个单元的单元，并且这些单元中的每一个包含包含状态忙/没有其消息单元的控制字，以及包括其存储的用户的消息的详细信息，电池很忙这些细节包括消息优先级，从而可以在商店中组装等待注意的消息队列。

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