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公开(公告)号：US3760297A
公开(公告)日：1973-09-18
申请号：US3760297D
申请日：1972-01-20
Applicant: INT STANDARD ELECTRIC CORP
Inventor： THOMPSON G
CPC classification number: H01S5/1071 , G02B6/4206 , G02B6/4287 , H01S5/026
Abstract: An optical fiber is coupled along an edge of a rectangular GaAs injection laser. A circulatory mode of light reflection is established between the four side walls of the laser at an angle of incidence which provides a narrow rectangular strip of light. The fiber is positioned transversely at one reflection point or corner of the light path. A narrow rectangular metal strip contact on one face of the laser confines current to the desired path. A reflective coating on an end of the fiber may provide a unidirectional optical source. Other variations include an optical amplifier for a light input source and an optical coupler from an input fiber to an output fiber.
Abstract translation: 沿着矩形GaAs注入激光器的边缘耦合光纤。 在激光的四个侧壁之间以入射角建立光反射的循环模式，其提供窄的矩形条带。 纤维横向定位在光路的一个反射点或拐角处。 在激光器的一个面上的窄矩形金属带接触将电流限制到所需的路径。 光纤端部上的反射涂层可以提供单向光源。 其他变型包括用于光输入源的光放大器和从输入光纤到输出光纤的光耦合器。
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42.发明授权Larity mode regenerative repeater for pcm signals transmitted in the alternate po 失效用于替代PO中传输的PCM信号的大型模式再生器
公开(公告)号：US3757051A
公开(公告)日：1973-09-04
申请号：US3757051D
申请日：1971-11-23
Applicant: INT STANDARD ELECTRIC CORP
CPC classification number: H04L25/242 , H04L25/4923
Abstract: A regenerative repeater for alternate polarity PCM signals is disclosed that does not require an equalizer or amplifier. The PCM signals are directly detected by (1) determining whether the slope of the pulse is greater or less than a reference value and (2) if its polarity is opposite to that of the preceding pulse. The detected signals are reshaped by a monostable multivibrator and are retimed by a phase-locked loop. The repeater is completely digital except for the slope comparator.
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公开(公告)号：US3754266A
公开(公告)日：1973-08-21
申请号：US3754266D
申请日：1971-12-22
Applicant: INT STANDARD ELECTRIC CORP
Inventor： POPPE D , MATHIESEN O , ODEGAARD G
CPC classification number: G01S3/143
Abstract: An updating control system for two channel direction finders which includes dual loop antennas and a sense antenna; and circuits for setting the direction finder to a ''''Frequency'''' condition during which the direction finder may be tuned to a new frequency and to a ''''Bearing'''' condition in which bearings corresponding to the new frequency are taken. Individual amplifying means are provided to connect each of the two loop antennas to a plate pair of a cathode ray tube. Circuits are also shown for updating (adjusting) the phase and gain of the two signals, and for interconnecting the inputs of the two amplifiers during the updating process and for instrumenting correction of quadrantal errors.
Abstract translation: 一种用于双通道测向器的更新控制系统，包括双环天线和感测天线; 以及用于将取向器设置到“频率”状态的电路，在该频率期间，取向器可以被调谐到新的频率，并且到达“轴承”状态，其中采用对应于新频率的轴承。 提供单独的放大装置以将两个环形天线中的每一个连接到阴极射线管的板对。 还示出了用于更新（调整）两个信号的相位和增益的电路，并且用于在更新过程期间互连两个放大器的输入以及用于校正四极差错。
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公开(公告)号：US3748395A
公开(公告)日：1973-07-24
申请号：US3748395D
申请日：1970-06-02
Applicant: INT STANDARD ELECTRIC CORP
Inventor： HERTER E
CPC classification number: H04Q3/42 , H04M1/515 , H04M3/2272 , H04Q1/38 , H04Q3/00
Abstract: A resistor network is connected to a two wire line and used to detect and overcome changes of direct current levels without disturbing any alternating current signals superimposed thereon. Direct connections between the d.c. source and the network eliminate the effects of any fluctuations in the source voltage. The invention has general utility wherever changes in d.c. levels must be detected; however, a particular use of the invention is to compensate for longitudinal voltages induced on a telephone line.
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公开(公告)号：US3748393A
公开(公告)日：1973-07-24
申请号：US3748393D
申请日：1971-01-18
Applicant: INT STANDARD ELECTRIC CORP
Inventor： BAXTER J
CPC classification number: H04J3/125 , H04J3/0614 , H04J3/10 , H04L12/525
Abstract: An arrangement to substitute data bits for and extract these data bits from at least one channel of a PCM-TDM intelligence (voice) communication system. The data bits do not have to be synchronized with the normal PCM bit stream. The normal PCM bit stream employs n bit positions, one bit position being employed for signalling and/or synchronization and (n-1) bit positions being employed for conveying intelligence. Data bits equal to or less than (n-2) are substituted for intelligence in a selected PCM channel. The data bits are grouped at one end of the (n-1) bit positions and a marker bit is inserted into a bit position adjacent the last data bit. The location of the marker bit in the (n-1) bit positions indicates the number and repetition rate of the data bits. The position of the marker bit within the (n-1) bit positions is employed in the receiver to extract the data bits from the PCM bit stream and to return the data bits to their original repetition rate for further utilization.
Abstract translation: 用于从PCM-TDM智能（语音）通信系统的至少一个信道取代数据比特并从其中提取这些数据比特的装置。 数据位不必与正常的PCM位流同步。 正常PCM比特流采用n个比特位置，一个比特位置用于信令和/或同步，（n-1）比特位置用于传送智能。 等于或小于（n-2）的数据位代替所选PCM通道中的智能。 数据位在（n-1）位位置的一端被分组，并且标记位被插入与最后数据位相邻的位位置。 （n-1）位位置中的标记位的位置表示数据位的数量和重复率。 在接收机中采用（n-1）比特位置内的标记位的位置从PCM比特流中提取数据比特，并将数据比特返回到其原始重复率以供进一步利用。
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Patent Agency Ranking
公开(公告)号：US3737761A
公开(公告)日：1973-06-05
申请号：US3737761D
申请日：1972-04-19
Applicant: INT STANDARD ELECTRIC CORP
Inventor： WALTHER D
CPC classification number: G05F1/445 , Y10T307/675 , Y10T307/858
Abstract: An electrical circuit for automatically adapting an inductive load to that of one of two possible A.C. supply voltages applied across the circuit. The circuit comprises a capacitor connected in series with the load. The capacitor value is such that a series resonant circuit is formed with the load at a frequency of operation. A controlled semiconductor device having a pair of terminals and a gate terminal is connected with the pair of terminals in parallel across the capacitor. The gate terminal is connected through a non-linear current-voltage characteristic electrical component to one of the terminals of the A.C. supply voltage. For the lower A.C. supply voltage, the capacitor and inductor form a series resonant circuit and at the higher A.C. supply voltage, the controlled semiconductor device short circuits the capacitor.
Abstract translation: 一种电路，用于将电感负载自动适应于跨过电路施加的两个可能的交流电源电压之一。 电路包括与负载串联连接的电容器。 电容器值使得以工作频率的负载形成串联谐振电路。 具有一对端子和栅极端子的受控半导体器件与该对端子并联连接在电容器上。 栅极端子通过非线性电流 - 电压特性电气元件连接到交流电源电压的端子之一。 对于较低的交流电源电压，电容器和电感器形成串联谐振电路，并且在较高的交流电源电压下，受控半导体器件使电容器短路。
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公开(公告)号：US3732548A
公开(公告)日：1973-05-08
申请号：US3732548D
申请日：1971-08-19
Applicant: INT STANDARD ELECTRIC CORP
CPC classification number: H04L12/52
Abstract: A switching center for a data network in which dedicated storage is provided for channels in each direction the channels handling a mixture of circuit switched (end-to-end connections) and packet switched (store and forward) messages. The switching center interconnects with other centers and with local area channels which may or may not have been concentrated.
Abstract translation: 用于数据网络的交换中心，其中为每个方向的信道提供专用存储器，用于处理电路交换（端到端连接）和分组交换（存储和转发）消息的混合的信道。 交换中心与其他中心和局域信道互连，可能或可能不会集中。
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公开(公告)号：US3731219A
公开(公告)日：1973-05-01
申请号：US3731219D
申请日：1972-06-13
Applicant: INT STANDARD ELECTRIC CORP
Inventor： MADER H , HOCHREUTINER R
CPC classification number: H04J3/073
Abstract: A hybrid digital phase locked loop is disclosed to recover an isochronous clock from a ''''stuffed'''' multiplexed input signal as found in an asynchronous PCM demultiplexer. A low frequency voltage controlled multivibrator is controlled by the output of a phase comparator. The phase comparator is coupled to the input signal and the output signal of a distributor. The distributor is controlled by the multivibrator to sequentially switch a multiphase output signal of a crystal oscillator to provide the output signal of the distributor. This arrangement overcomes the requirement of a voltage controlled crystal oscillator per channel group in the demultiplexer.
Abstract translation: 公开了一种混合数字锁相环，用于从异步PCM解复用器中发现的“填充”复用输入信号恢复同步时钟。 低频电压控制的多谐振荡器由相位比较器的输出控制。 相位比较器耦合到输入信号和分配器的输出信号。 分配器由多谐振荡器控制以依次切换晶体振荡器的多相输出信号以提供分配器的输出信号。 这种布置克服了在解复用器中每个通道组的压控晶体振荡器的要求。
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公开(公告)号：US3728729A
公开(公告)日：1973-04-17
申请号：US3728729D
申请日：1971-12-22
Applicant: INT STANDARD ELECTRIC CORP
Inventor： OVERBURY F
CPC classification number: G01S1/40
Abstract: A radio navigation beacon system of the Doppler type having a simplified antenna arrangement. A main array employing 30 array elements spaced at four wavelengths and an auxiliary or reference array comprising 12 reference antenna elements spaced at onethird wavelength, are employed. A source of radio frequency energy is commutated to the separate radiator elements in order to simulate unidirectional or bidirectional constant velocity motion of the source. Navigational information is derived from this ground beacon arrangement by a receiving station as, for example, in an approaching aircraft on the basis that the Doppler shift of frequency observed at the receiving station is proportional to the cosine of the angle of reception with respect to the operating centerline of the system. Means are included for commutating the reference frequency to each reference antenna element, in turn, during the period that each main array element is radiating.
Abstract translation: 具有简化天线布置的多普勒类型的无线电导航信标系统。 使用以四个波长间隔开的30个阵列元件的主阵列和包括以三分之一波长隔开的12个参考天线元件的辅助或参考阵列。 射频能量源被换向到单独的散热器元件，以便模拟源的单向或双向恒定速度运动。 基于接收站观测到的频率的多普勒频移与接收角相对于接收台的接收角的余弦成正比，由导航信息由接收站从例如接近飞行器的这个地面信标布置导出 系统的操作中心线。 包括用于在每个主阵列元件辐射的时段内将参考频率换向每个参考天线元件的装置。
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公开(公告)号：US3725590A
公开(公告)日：1973-04-03
申请号：US3725590D
申请日：1971-09-01
Applicant: INT STANDARD ELECTRIC CORP
Inventor： VERSTEGEN W
CPC classification number: H04Q11/04 , H04J3/0629
Abstract: A TDM switching system is disclosed which permits PCM transmission between exchanges. Both directions of transmission are regulated at the clock rate of one exchange. Using a particular form of control of one input stage, it is possible to eliminate the need for buffer storage formerly used to compensate for frequency and phase variations.
Abstract translation: 公开了允许交换机之间的PCM传输的TDM交换系统。 传输方向以一个交换机的时钟速率进行调整。 使用一个输入级的特定形式的控制，可以消除以前用于补偿频率和相位变化的缓冲存储器的需要。
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