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1. 发明授权

US4554464A Propagation delay generator 失效
标题翻译：传播延迟发生器
公开(公告)号：US4554464A
公开(公告)日：1985-11-19
申请号：US413051
申请日：1982-08-30
申请人： Robert B. Davies , Ira Miller , Robert N. Dotson
发明人： Robert B. Davies , Ira Miller , Robert N. Dotson
IPC分类号： H03K5/13 , H03K17/28 , H03K3/017 , H03K5/04 , H03K17/56
CPC分类号： H03K17/28 , H03K5/13
摘要： A propagation delay generator is provided for controlling the duration of a bubble generate waveform of a bubble memory system. A first means is responsive to a digital input signal and provides an initializing signal to a current source. A capacitor is charged, responsive to an R-C time constant, by an increased voltage level prompted by the initializing signal. A second means is responsive to the charging signal in excess of that required to charge the capacitor. The second means thereby provides a digital output that is delayed from the digital input signal.
摘要翻译：提供传播延迟发生器用于控制气泡存储系统的气泡产生波形的持续时间。第一装置响应于数字输入信号并且向当前源提供初始化信号。响应于R-C时间常数，电容器被由初始化信号提示的增加的电压电平充电。第二装置响应于超过对电容器充电所需的充电信号。因此，第二装置提供从数字输入信号延迟的数字输出。

2. 发明授权

US4514648A Current sense circuit for a bubble memory voltage booster 失效
标题翻译：用于气泡存储器电压增强器的电流检测电路
公开(公告)号：US4514648A
公开(公告)日：1985-04-30
申请号：US412057
申请日：1982-08-27
申请人： Robert N. Dotson , Robert B. Davies , Ira Miller
发明人： Robert N. Dotson , Robert B. Davies , Ira Miller
IPC分类号： H03K17/082 , H03K17/64 , H03K5/153 , H03K5/24 , H03K17/08
CPC分类号： H03K17/0826 , H03K17/64
摘要： In a voltage boost circuit for use in conjunction with a bubble memory operational driver, an output transistor is alternately turned on and off. When turned on, current flows through an inductor. When turned off, a high voltage is built up across the inductor which causes charge to be transferred to and stored in a capacitor. When the output transistor is turned on so as to permit current to flow through the inductor, a .DELTA.V.sub.BE /R current representative of the current flowing through the output transistor is compared with a .DELTA.V.sub.BE /R reference current. When the first current reaches and exceeds the reference current, the output transistor is turned off.
摘要翻译：在与气泡存储器操作驱动器一起使用的升压电路中，输出晶体管交替地导通和截止。导通时，电流流经电感。当关闭时，在电感器上建立高电压，这将导致电荷被转移并存储在电容器中。当输出晶体管导通以允许电流流过电感器时，将代表流过输出晶体管的电流的DELTA VBE / R电流与DELTA VBE / R参考电流进行比较。当第一电流达到并超过参考电流时，输出晶体管截止。

3. 发明授权

US4504928A Current ramp generator 失效
标题翻译：电流斜坡发生器
公开(公告)号：US4504928A
公开(公告)日：1985-03-12
申请号：US413050
申请日：1982-08-30
申请人： Robert B. Davies , Ira Miller , Robert N. Dotson
发明人： Robert B. Davies , Ira Miller , Robert N. Dotson
IPC分类号： G11C19/08 , H03K4/08
CPC分类号： G11C19/0858
摘要： A current ramp generator is provided for controlling the fall time of a bubble generate waveform of a bubble memory system. Gate circuitry is responsive to a digital input signal and provides an initializing signal to a current source. The current source charges a capacitor and thereby provides an increasing signal to a current mirror whose output sinks current from a control amplifier of the bubble memory system.
摘要翻译：提供电流斜坡发生器用于控制气泡存储系统的气泡产生波形的下降时间。门电路响应于数字输入信号并向电流源提供初始化信号。电流源对电容器充电，从而向电流镜提供增加的信号，电流镜的输出从气泡存储器系统的控制放大器吸收电流。

4. 发明授权

US4461989A Voltage sense circuit for a bubble memory voltage booster 失效
标题翻译：用于气泡存储器电压增压器的电压检测电路
公开(公告)号：US4461989A
公开(公告)日：1984-07-24
申请号：US412069
申请日：1982-08-27
申请人： Robert N. Dotson , Robert B. Davies , Ira Miller
发明人： Robert N. Dotson , Robert B. Davies , Ira Miller
IPC分类号： G11C5/14 , G05F1/10 , G05F3/20
CPC分类号： G11C5/145
摘要： In a voltage boost circuit for use in conjunction with a bubble memory operational driver, an output transistor alternately turns on and off so as to permit current to flow through an inductor which, when terminated by turning off the output transistor, causes a high voltage to be built up across the inductor which causes charge to be transferred to and stored in a capacitor. The output transistor is not turned on again until the voltage across the inductor falls below a predetermined value. A current mirror circuit is coupled to the comparator input and includes a buffer transistor which, when the voltage at the comparator input exceeds the break-down voltage of the buffer transistor, acts as a BV.sub.ceo level shifter.
摘要翻译：在与气泡存储器操作驱动器结合使用的升压电路中，输出晶体管交替地导通和截止，以允许电流流过电感器，当通过关断输出晶体管而终止时，电感引起高电压在整个电感上形成电荷，使电荷转移并存储在电容器中。直到电感两端的电压下降到预定值以下，输出晶体管才再次导通。电流镜电路耦合到比较器输入，并且包括缓冲晶体管，当比较器输入端的电压超过缓冲晶体管的击穿电压时，缓冲晶体管充当BVceo电平移位器。

5. 发明授权

US4485319A Bubble memory sense amplifier 失效
标题翻译：气泡存储读出放大器
公开(公告)号：US4485319A
公开(公告)日：1984-11-27
申请号：US352989
申请日：1982-02-26
申请人： Robert B. Davies , Robert N. Dotson , Ira Miller
发明人： Robert B. Davies , Robert N. Dotson , Ira Miller
IPC分类号： G11C11/14 , G11C7/06 , G11C19/08 , H03K5/02 , H03K5/24 , H03K5/159 , H03K17/00
CPC分类号： G11C19/0866 , G11C7/06 , H03K5/02 , H03K5/24
摘要： A sense amplifier which is fully integrated has an on-chip voltage regulator to provide essentially error free operation. The sense amplifier provides peak-to-peak signal detection for comparison to a threshold voltage by a comparator. The output of the comparator is coupled to an RS flip-flop. The output of the RS flip-flop is coupled to a D flip-flop. The use of an RS flip-flop as well as a D flip-flop eliminates clocking problems caused by skewing and keeps a stored detected signal from changing prematurely.
摘要翻译：完全集成的读出放大器具有片上稳压器，可实质提供无差错的操作。读出放大器提供峰 - 峰信号检测，以便通过比较器与阈值电压进行比较。比较器的输出耦合到RS触发器。 RS触发器的输出耦合到D触发器。使用RS触发器和D触发器可以消除由偏移引起的时钟问题，并保持存储的检测信号过早变化。

6. 发明授权

US4476429A High voltage bubble memory pulse generator output stage 失效
标题翻译：高电压气泡记忆脉冲发生器输出级
公开(公告)号：US4476429A
公开(公告)日：1984-10-09
申请号：US412070
申请日：1982-08-27
申请人： Ira Miller , Robert N. Dotson , Robert B. Davies
发明人： Ira Miller , Robert N. Dotson , Robert B. Davies
IPC分类号： G11C19/08 , H03K5/08 , H03K17/64 , G05F5/00
CPC分类号： G11C19/0858 , G11C19/085 , H03K17/64 , H03K5/08
摘要： A circuit for providing the gate of a bubble memory with a precision current pulse at a high voltage is manufactured using a low voltage process; i.e. BV.sub.ceo is approximately 18 volts. In order to accomplish this, first and second voltage level shifting stages are cascoded and the output transistors thereof are used as Zener level shifters each level shifting downward by a BV.sub.ceo when only a small voltage is dropped across the load. If the voltage drop across the load increases, the cascoded output transistors may enter their active region and are prevented from going into saturation by saturation clamps so as to not introduce unwanted delays in the rise or fall times of the current pulse.
摘要翻译：使用低电压工艺制造用于以高电压提供具有精密电流脉冲的气泡存储器的栅极的电路; 即BVceo约为18伏特。为了实现这一点，第一和第二电压电平移位级被级联，并且其输出晶体管被用作齐纳电平移位器，当只有小的电压在负载上下降时，每个电平向下移位BVceo。如果跨越负载的电压降增加，则级联输出晶体管可能进入其有源区，并且通过饱和钳位阻止其进入饱和，从而不会在电流脉冲的上升或下降时间引入不必要的延迟。

7. 发明授权

US4485352A Current amplifier 失效
标题翻译：电流放大器
公开(公告)号：US4485352A
公开(公告)日：1984-11-27
申请号：US413052
申请日：1982-08-30
申请人： Robert B. Davies , Robert N. Dotson , Michael W. Null
发明人： Robert B. Davies , Robert N. Dotson , Michael W. Null
IPC分类号： H03F3/343 , H03F3/04
CPC分类号： H03F3/343
摘要： A current amplifier uses a current mirror arrangement as an operational amplifier whose output has limited swing. The limited swing is achieved through a plurality of series connected diodes connected to a control input of the amplifier and to the output of the operational amplifier. The control input is coupled through a transistor to inhibit the output of the current mirror arrangement. The output node is coupled to an output for the current amplifier through a Darlington arrangement which provides high current gain.
摘要翻译：电流放大器使用电流镜布置作为输出具有有限摆幅的运算放大器。通过连接到放大器的控制输入和运算放大器的输出的多个串联连接的二极管实现有限的摆幅。控制输入通过晶体管耦合以阻止电流镜布置的输出。输出节点通过提供高电流增益的达林顿配置耦合到电流放大器的输出端。

8. 发明授权

US4533844A Peak storage amplifier 失效
标题翻译：峰值存储放大器
公开(公告)号：US4533844A
公开(公告)日：1985-08-06
申请号：US694895
申请日：1985-01-24
申请人： Ira Miller , Robert B. Davies
发明人： Ira Miller , Robert B. Davies
IPC分类号： G01R19/04 , G11C27/02 , H03F3/72 , H03F3/45
CPC分类号： H03F3/72 , G01R19/04 , G11C27/026
摘要： A peak storage amplifier for storing successive peaks of a waveform for a sufficient period of time to insure accurate data transmittal is provided. A differential amplifier is responsive to the waveform and drives a PNP transistor that provides an output. A capacitor stores the peaks of the output waveform as long as a clamp signal is received by a current source that inhibits the current source from sinking the output to ground. Since the PNP transistor is continually reversed biased and the base-collector capacitance is small, the storage capacitor's discharge due to the amplifiers inherent turn-off characteristics is minimized. A compensation capacitor coupled to the differential amplifier prevents the collapse of a Wilson mirror serving as a load to the differential amplifier.
摘要翻译：提供一种峰值存储放大器，用于在足够的时间段内存储波形的连续峰值以确保准确的数据传输。差分放大器响应波形并驱动提供输出的PNP晶体管。一个电容器存储输出波形的峰值，只要钳位信号被电流源接收，阻止电流源将输出端接地。由于PNP晶体管被连续反向偏置并且基极 - 集电极电容小，所以存储电容器由放大器固有的关断特性引起的放电最小化。耦合到差分放大器的补偿电容器防止作为负载的威尔逊反射镜的塌陷到差分放大器。

9. 发明授权

US4433302A Amplifier with independent quiescent output voltage control 失效
标题翻译：具有独立静态输出电压控制的放大器
公开(公告)号：US4433302A
公开(公告)日：1984-02-21
申请号：US352903
申请日：1982-02-26
申请人： Robert B. Davies , Ira Miller
发明人： Robert B. Davies , Ira Miller
IPC分类号： H03F1/30 , H03F3/30 , H03F3/45
CPC分类号： H03F3/3066 , H03F1/302
摘要： A circuit for providing a quiescent output voltage having a load resistor, a current means for establishing a load current through the load resistor, and a mirror means for summing a mirror current with the load current at an output terminal. The current means comprises a differential amplifier driving a multiplying mirror. The mirror means comprises a Wilson mirror for providing one of its tail currents as the additional current to be summed at the output terminal. The circuit provides a quiescent output voltage that is independent of the reference voltage supplying the differential amplifier or the tail current through the differential amplifier.
摘要翻译：用于提供具有负载电阻器的静态输出电压的电路，用于建立通过负载电阻器的负载电流的电流装置，以及用于将镜电流与输出端子处的负载电流相加的反射镜装置。电流装置包括驱动倍增镜的差动放大器。反射镜装置包括威尔逊反射镜，用于将其尾部电流中的一个作为在输出端子处相加的附加电流。电路提供静态输出电压，独立于通过差分放大器提供差分放大器的参考电压或尾电流。

10. 发明授权

US4429270A Switched current source for sourcing current to and sinking current from an output node 失效
标题翻译：用于从输出节点提供电流和电流的开关电流源
公开(公告)号：US4429270A
公开(公告)日：1984-01-31
申请号：US352905
申请日：1982-02-26
申请人： Robert B. Davies , Ira Miller
发明人： Robert B. Davies , Ira Miller
IPC分类号： G05F3/22 , G05F3/08
CPC分类号： G05F3/22
摘要： A gated current source includes a first current source for generating a first current which is supplied to the anode of a diode. A second switched current source is also coupled to the anode of the diode and produces a second current which is greater than the first current. When the switched current source is off, a current is supplied to an output node via the diode. When the switched current source is on, a different current is pulled from the the output node via a transistor having a base coupled to the output node and an emitter coupled to the anode of the diode.
摘要翻译：选通电流源包括用于产生提供给二极管的阳极的第一电流的第一电流源。第二开关电流源还耦合到二极管的阳极并且产生大于第一电流的第二电流。当开关电流源关断时，电流通过二极管提供给输出节点。当开关电流源导通时，经由具有耦合到输出节点的基极的晶体管和耦合到二极管的阳极的发射极从输出节点拉出不同的电流。

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