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1. 发明授权

US4782486A Self-testing memory 失效
标题翻译：自检记忆
公开(公告)号：US4782486A
公开(公告)日：1988-11-01
申请号：US49812
申请日：1987-05-14
申请人： Jesse B. Lipcon , Barry A. Maskas , David K. Morgan
发明人： Jesse B. Lipcon , Barry A. Maskas , David K. Morgan
IPC分类号： G06F12/16 , G11C29/28 , G01R31/28
CPC分类号： G11C29/28
摘要： A self-testing memory simultaneously writes test patterns into the memory banks of the memory, simultaneously compares the contents of one of the memory banks with the contents of the other of the banks, and records errors when the contents of the one memory bank differ from the contents of the other banks.

2. 发明授权

US4744025A Arrangement for expanding memory capacity 失效
标题翻译：扩展内存容量的安排
公开(公告)号：US4744025A
公开(公告)日：1988-05-10
申请号：US21522
申请日：1987-02-26
申请人： Jesse B. Lipcon , Barry A. Maskas
发明人： Jesse B. Lipcon , Barry A. Maskas
IPC分类号： G06F12/06
CPC分类号： G06F12/0684
摘要： An expandable memory connected to a central processing unit includes several memory modules which transfer configuration signals serially to the central processing unit by way of an interface circuit. The interface circuit also selects ones of the memory modules for access by the central processing unit according to the configuration signals.
摘要翻译：连接到中央处理单元的可扩展存储器包括几个存储器模块，其通过接口电路将配置信号串行地传送到中央处理单元。接口电路还根据配置信号选择存储器模块以供中央处理单元访问。

3. 发明授权

US4412347A Precision setting of currents and reference voltages 失效
标题翻译：精度设定电流和参考电压
公开(公告)号：US4412347A
公开(公告)日：1983-10-25
申请号：US292006
申请日：1981-08-11
申请人： Jesse B. Lipcon
发明人： Jesse B. Lipcon
IPC分类号： H04L12/26 , H04L12/413 , H04B1/00 , H04B1/40
CPC分类号： H04L43/50 , H04L12/2697 , H04L12/413
摘要： A precision voltage and current source for use, for example, in a transceiver for a carrier-sense multiple access communications network using collision detection wherein the use of one or more precise threshold voltages is required. The threshold voltage(s) is (are) created by a current source which pulls a current through a precise resistive load to yield a precise voltage. A power supply with regulated voltage drives the current source. A feedback voltage from the current source, proportional to the output current of the source, is compared with a reference zener diode voltage; the difference, or error, voltage controls the regulator to drive the regulated power supply voltage in the direction which drives the error voltage to zero. The precise resistive load is preferably formed of two resistors in series. A first threshold voltage is developed across one resistor, corresponding to the average signal level required for receiving signals on the network. A second threshold voltage is developed across the series pair of resistors, corresponding to the minimum average signal level which would be produced by a collision.
摘要翻译：一种精确的电压和电流源，例如在使用碰撞检测的载波侦听多址通信网络的收发机中使用，其中需要使用一个或多个精确的阈值电压。阈值电压（s）由电流源产生，该电流源通过精确的电阻负载拉电流以产生精确的电压。具有稳压电源的电源驱动电流源。将来自电流源的反馈电压与源的输出电流成比例，与参考齐纳二极管电压进行比较; 差异或误差电压控制稳压器驱动调节电源电压的方向驱动误差电压为零。精确的电阻负载优选由串联的两个电阻器组成。在一个电阻器上形成第一阈值电压，对应于在网络上接收信号所需的平均信号电平。在串联的电阻对上形成第二阈值电压，对应于将由碰撞产生的最小平均信号电平。

4. 发明授权

US4384363A Transceiver for local network using carrier-sense multiple access/collision detection 失效
标题翻译：收发器用于本地网络使用载波侦听多路访问/冲突检测
公开(公告)号：US4384363A
公开(公告)日：1983-05-17
申请号：US267394
申请日：1981-05-26
申请人： Jesse B. Lipcon
发明人： Jesse B. Lipcon
IPC分类号： H04L12/26 , H04L12/413 , H04B1/00 , H04B1/40
CPC分类号： H04L43/50 , H04L12/2697 , H04L12/413
摘要： A transceiver for a carrier-sense multiple access communications network using collision detection for controlling access to the network, and utilizing industry standard emitter-coupled logic (ECL) circuits in its receiver and transmitter. The transmitter output stage is an ECL current source. To prevent saturation of the transmitter output in the event of a collision, due to the voltage swing exceeding the compliance limit of the ECL current source, with a resulting failure of the collision detection mechanism, the power supply for the transmitter output stage supplies voltage in a first range of about -5 to -10 volts, while the power supply for the receiver input and collision detection circuits supplies voltage in a second, contiguous range of zero to about -5 volts. This permits the transmitter output to swing about 6-7 volts without exceeding the compliance limit of the current source, so that the collision is detectable by the collision detection circuits.
摘要翻译：用于使用碰撞检测来控制对网络的访问的载波侦听多址通信网络的收发器，以及在其接收机和发射机中利用工业标准发射极耦合逻辑（ECL）电路。发射机输出级是ECL电流源。为防止发生碰撞时发射机输出的饱和，由于电压摆幅超过了ECL电流源的合规极限，由于碰撞检测机构的故障，发射机输出级的电源提供电压约-5至-10伏特的第一范围，而用于接收器输入和碰撞检测电路的电源在零至约-5伏特的第二连续范围内提供电压。这允许发射机输出摆动约6-7伏，而不超过电流源的顺从极限，使得冲突检测电路可以检测到碰撞。

5. 发明授权

US4380088A Tester for collision-detect circuitry 失效
标题翻译：用于碰撞检测电路的测试仪
公开(公告)号：US4380088A
公开(公告)日：1983-04-12
申请号：US292003
申请日：1981-08-11
申请人： Jesse B. Lipcon
发明人： Jesse B. Lipcon
IPC分类号： H04L12/26 , H04L12/413 , H04B17/00
CPC分类号： H04L43/50 , H04L12/2697 , H04L12/413
摘要： A tester for the collision detector of a transceiver for a multiple access data communications network using carrier-sense collision detection for controlling access to the network. A squelch circuit is employed in the transceiver's transmitter for enabling and disabling the transmitter output. An end-of-transmission detector monitors the squelch circuit to detect the termination of a transmission. Upon termination of a transmission, a collision simulator circuit supplies to the transceiver's receiver a signal of predetermined amplitude and duration, to simulate the input the receiver gets when a collision actually occurs. If the receiver is working properly, it signals a collision to the host (i.e., computer, terminal, etc). If it does not receive the collision signal at the appointed time, the host knows that either the transceiver's collision detection circuit or the tester is not working.
摘要翻译：用于多址数据通信网络的收发器的碰撞检测器的测试器，使用载波侦听冲突检测来控制对网络的访问。在收发器的发射机中采用静噪电路，用于启用和禁用发射机输出。传输终端检测器监测静噪电路以检测传输的终止。在传输终止时，碰撞模拟器电路向收发器的接收器提供预定幅度和持续时间的信号，以模拟当实际发生碰撞时接收器获得的输入。如果接收机工作正常，则会向主机（即计算机，终端等）发出冲突。如果在指定的时间没有收到冲突信号，主机就知道收发器的碰撞检测电路或测试仪不工作。

6. 发明授权

US3982241A Self-zeroing analog-to-digital conversion system 失效
标题翻译：自归零模数转换系统
公开(公告)号：US3982241A
公开(公告)日：1976-09-21
申请号：US498500
申请日：1974-08-19
申请人： Jesse B. Lipcon
发明人： Jesse B. Lipcon
IPC分类号： H03M1/00 , H03K13/02
CPC分类号： H03M1/10 , H03M1/124
摘要： A self-zeroing, drift-free analog-to-digital conversion system is disclosed in which a single amplifier is shared between an analog-to-digital converter circuit and a sample-and-hold circuit. The offset errors generated by the sample-and-hold circuit cancel with the offset errors generated by the analog-to-digital converter circuit since the circuitry introducing the offset errors is shared. As a result, system offset errors are negated and the system enables changing from a unipolar to bipolar input range without inclusion of any additional circuitry. Usage of a gain preamplifier is provided with no corresponding system offset errors being introduced. moreover, usage of a differential-input gain preamplifier is also provided, with the self-zeroing feature resulting in greatly improved common-mode rejection.
摘要翻译：公开了一种自归零漂移的模拟 - 数字转换系统，其中单个放大器在模数转换器电路和采样保持电路之间共享。由采样和保持电路产生的偏移误差由模数转换器电路产生的偏移误差消除，因为引入偏移误差的电路被共享。因此，系统偏移误差被否定，并且系统能够从单极性变化到双极性输入范围，而不包括任何附加电路。提供了增益前置放大器的使用，没有引入相应的系统偏移误差。此外，还提供了差分输入增益前置放大器的使用，自归零特征导致大大改善的共模抑制。

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