公开(公告)号：US20080018397A1

公开(公告)日：2008-01-24

申请号：US11490453

申请日：2006-07-21

申请人： Scott Frankland ,  Martin G. Reiffin

发明人： Scott Frankland ,  Martin G. Reiffin

IPC分类号： H03F1/00

CPC分类号： H03F3/181 ,  H03F1/26 ,  H03F1/32 ,  H03F1/33 ,  H03F3/50 ,  H03F3/52 ,  H03F2200/03 ,  H03F2200/372 ,  H03F2200/541

摘要： A novel single-ended screen-regulated cathode-follower output topology for implementing vacuum-tube audio power amplifiers for the reproduction of high-fidelity music with minimal audible distortion. The screen regulation substantially reduces the distortions and noise in the current fed to the output tube by a non-regulated power supply. The noise and distortion of the power supply voltage are thereby prevented from intermodulating with and distorting the music signal.

摘要翻译： 一种新颖的单端屏幕调节阴极跟随器输出拓扑，用于实现真空管音频功率放大器，用于重现高保真音乐，具有最小的可听失真。 屏幕调节基本上减少了通过非调节电源馈送到输出管的电流中的失真和噪声。 由此防止了电源电压的噪声和失真与音乐信号的互调和失真。

公开(公告)号：US07511571B2

公开(公告)日：2009-03-31

申请号：US11490453

申请日：2006-07-21

申请人： Scott Frankland ,  Martin G. Reiffin

发明人： Scott Frankland ,  Martin G. Reiffin

IPC分类号： H03F1/00

CPC分类号： H03F3/181 ,  H03F1/26 ,  H03F1/32 ,  H03F1/33 ,  H03F3/50 ,  H03F3/52 ,  H03F2200/03 ,  H03F2200/372 ,  H03F2200/541

摘要： A novel single-ended screen-regulated cathode-follower output topology for implementing vacuum-tube audio power amplifiers for the reproduction of high-fidelity music with minimal audible distortion. The screen regulation substantially reduces the distortions and noise in the current fed to the output tube by a non-regulated power supply. The noise and distortion of the power supply voltage are thereby prevented from intermodulating with and distorting the music signal.

摘要翻译： 一种新颖的单端屏幕调节阴极跟随器输出拓扑，用于实现真空管音频功率放大器，用于重现高保真音乐，具有最小的可听失真。 屏幕调节基本上减少了通过非调节电源馈送到输出管的电流中的失真和噪声。 由此防止了电源电压的噪声和失真与音乐信号的互调和失真。

公开(公告)号：US5694604A

公开(公告)日：1997-12-02

申请号：US217669

申请日：1994-03-25

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： G06F9/45 ,  G06F9/48 ,  G06F9/46

CPC分类号： G06F9/4825 ,  G06F8/48 ,  G06F9/4812 ,  G06F9/4843

摘要： A multithreading computer system provides concurrent asynchronous preemptive time-sliced execution of a plurality of threads of instructions located within the same software program. A clock or timer periodically activates the interrupt operation of the central processor. Each interrupt preempts an executing thread after the thread has executed for a brief timeslice during which the thread may have performed only a portion of its task. Control of the processor is thereby taken away from the preempted thread, and control then passes to an interrupt service routine which then passes control to another thread to invoke the latter for execution during the next timeslice. Control is thereafter returned to the preempted thread to enable the latter to resume execution at the point where it was previously interrupted. Control of the processor is thus transferred repeatedly back and forth between the threads so rapidly that the threads are run substantially simultaneously. The threads may thus execute incrementally and piecewise with their successive task portions executed alternately in a mutually interleaved relation and with each thread executed during its respective series of spaced timeslices interleaved with the timeslices of at least one other thread.

摘要翻译： 多线程计算机系统提供位于同一软件程序内的多个指令线程的并发异步预先时间分片执行。 时钟或定时器周期性地激活中央处理器的中断操作。 每个中断在线程执行一个简短的时间片之后，会抢占一个执行的线程，线程可能只执行其任务的一部分。 因此，处理器的控制从被抢占的线程中移除，然后控制传递给中断服务程序，然后中断服务程序将控制权传递到另一个线程，以调用后者来执行下一个时间片。 此后，控制返回到抢占线程，以使后者可以在之前被中断的点恢复执行。 因此，处理器的控制在线程之间来回重复地进行，使得线程基本上同时运行。 因此，线程可以以相互交错的关系交替执行的连续任务部分逐行地和分段地执行，并且每个线程在与其中的至少一个线程的时间片交错的各自的间隔的时间片段期间执行。

公开(公告)号：US3372342A

公开(公告)日：1968-03-05

申请号：US31173263

申请日：1963-09-26

申请人： MARTIN G. REIFFIN

发明人： REIFFIN MARTIN G

IPC分类号： H03F3/26 ,  H03F3/30

CPC分类号： H03F3/3091 ,  H03F3/26 ,  H03F3/3081

公开(公告)号：US5694603A

公开(公告)日：1997-12-02

申请号：US496282

申请日：1990-03-20

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： G06F9/45 ,  G06F9/48 ,  G06F9/46

CPC分类号： G06F9/4825 ,  G06F8/48 ,  G06F9/4812 ,  G06F9/4843

摘要： A multithreading computer system for the preemptive asynchronous concurrent execution of a plurality of instruction threads of a multithreaded application program. As an illustrative example of one of the many uses of the invention, the disclosed application program comprises a compiler thread and an editor thread. The compiler processes the source code while the programmer edits the source code at the keyboard. An interrupt sevice routine repeatedly activates the editor thread to provide a preemptive asynchronous editing process for either entry of new source code or modification of the previously entered code, while the compiler thread concurrently processes the source code during the time intervals between keystrokes. The interrupt service routine may be activated either by a keyboard interrupt or periodically by a clock at predetermined time intervals.

摘要翻译： 一种用于多线程应用程序的多个指令线程的抢占式异步并发执行的多线程计算机系统。 作为本发明的许多用途之一的说明性示例，所公开的应用程序包括编译器线程和编辑器线程。 编译器处理源代码，而程序员在键盘上编辑源代码。 中断服务程序重复激活编辑器线程，以提供用于新的源代码的输入或先前输入的代码的修改的抢占式异步编辑过程，而编译器线程在击键之间的时间间隔期间同时处理源代码。 中断服务程序可以通过键盘中断或以预定时间间隔周期性地被时钟激活。

公开(公告)号：US4864249A

公开(公告)日：1989-09-05

申请号：US290371

申请日：1988-12-29

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： H03F3/30

CPC分类号： H03F3/3076

摘要： A nonslewing amplifier comprises two push-pull voltage-amplification stages each having a complementary pair of grounded-emitter transistors. The first stage has a load impedance connected to each of the transistor collectors. A pair of feedback compensation capacitors are each connected from the collector output to the base input of a respective transistor of the second stage. When a large fast signal causes slewing in one half of these stages due to insufficient current from the respective load impedance to charge the associated compensation capacitor at the rate required by the signal, the transistor in the other half of the first stage draws enough current to discharge the other compensation capacitor at a rate fast enough to transmit an undistorted signal to the second stage where it is amplified and transmitted to the following drive stage. Slew limiting and transient intermodulation distortion are thereby avoided.

摘要翻译： 非抽头放大器包括两个推挽电压放大级，每个具有互补的一对接地发射极晶体管。 第一级具有连接到每个晶体管集电极的负载阻抗。 一对反馈补偿电容器各自从集电极输出连接到第二级的相应晶体管的基极输入。 当大的快速信号由于来自各个负载阻抗的电流不足导致这些级的一半中的回转而以相应的信号所需的速率对相关的补偿电容器充电时，第一级的另一半的晶体管将足够的电流吸引到 以足够高的速率对另一个补偿电容器放电，以将未失真的信号发送到第二级，在第二级被放大并传输到随后的驱动级。 从而避免了摆动限制和瞬态互调失真。

公开(公告)号：US4823094A

公开(公告)日：1989-04-18

申请号：US162112

申请日：1988-02-29

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： H03F3/30

CPC分类号： H03F3/3076 ,  H03F3/3001 ,  H03F3/3008 ,  H03F2200/516

摘要： The disclosed amplifier comprises a high-frequency power output stage for current amplification of the high-frequency signals and a separate low-frequency power output stage for current amplification of the low-frequency signals. Reactive coupling means, including either inductors or a capacitor or both, together with resistors, coact with the two output stages to provide a novel crossover circuit to transmit high-frequency signal to the amplifier output terminal and low-frequency signals to the inputs of the low-frequency output stage to drive the latter. Each output stage is disclosed as having its own power supply. Each output stage may thus be implemented with devices optimized for its respective frequency range, intermodulation distortion is substantially reduced, and similar benefits accrue in the design of the separate power supplies.

摘要翻译： 所公开的放大器包括用于高频信号的电流放大的高频功率输出级和用于低频信号的电流放大的单独的低频功率输出级。 包括电感器或电容器或两者的反应耦合装置与电阻器一起与两个输出级共同提供一种新颖的交叉电路，以将高频信号传输到放大器输出端子，并将低频信号传输到输入端 低频输出级驱动后者。 每个输出级被公开为具有其自己的电源。 因此，可以使用针对其各自的频率范围优化的装置来实现每个输出级，互调失真大大降低，并且在单独的电源的设计中产生类似的益处。

公开(公告)号：USRE29273E

公开(公告)日：1977-06-21

申请号：US562956

申请日：1975-03-27

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： H03F3/30

CPC分类号： H03F3/3091

摘要： A transistor power amplifier is provided with direct-current-coupling between stages and to the loudspeaker. The output stage is push-pull single-ended and includes two transistors connected in series at a midpoint of the stage. A split power supply has a center-tap connected to one output terminal and the other output terminal is connected to said output stage midpoint. Amplification and drive stages are direct-current-coupled in cascade to the output stage. A direct-current negative feedback network extends from the output stage to an amplification stage to maintain the output terminals at substantially the same quiescent potential to prevent direct-current flow through the voice-coil of the loudspeaker.

公开(公告)号：US4728903A

公开(公告)日：1988-03-01

申请号：US858664

申请日：1986-05-02

申请人： Martin G. Reiffin

发明人： Martin G. Reiffin

IPC分类号： H03F3/30

CPC分类号： H03F3/3008 ,  H03F2200/516

摘要： The disclosed amplifier comprises a MOSFET output stage biased for Class A operation and a bipolar current amplification stage biased for Class C operation. The latter stage is normally cut off, and at low power output levels the entire output signal current is provided by the output stage. Current sensing resistors measure the magnitude of the output current and apply to the base-emitter junctions of the current amplification transistors a bias voltage proportional to the output current. When this current reaches a predetermined magnitude the current amplification stage becomes active so as to provide additional output signal current in parallel with that provided by the output stage. As a result at higher power output levels the output stage sees a load impedance much higher than that of the loudspeaker system and therefore has a flatter load-line which maintains its operating point in the active region. The output stage is thereby maintained conductive and operates in the Class A mode notwithstanding a relatively moderate quiescent current of about one ampere.

摘要翻译： 所公开的放大器包括偏置用于A类操作的MOSFET输出级和用于C类操作的双极性电流放大级。 后一级通常被切断，而在低功率输出电平下，整个输出信号电流由输出级提供。 电流检测电阻测量输出电流的大小，并将电流放大晶体管的基极 - 发射极结应用于与输出电流成正比的偏置电压。 当该电流达到预定幅度时，电流放大级变为有效，以便提供与输出级提供的并联的附加输出信号电流。 因此，在较高的功率输出电平下，输出级看到的负载阻抗远高于扬声器系统的负载阻抗，因此具有较平坦的负载线，其维持其工作点在有源区域。 因此，尽管具有约1安培的相对适度的静态电流，但是输出级由此保持导通并且在A类模式下操作。

公开(公告)号：US3376388A

公开(公告)日：1968-04-02

申请号：US65494767

申请日：1967-05-10

申请人： MARTIN G. REIFFIN

发明人： REIFFIN MARTIN G

IPC分类号： H03F3/26 ,  H03F3/30

CPC分类号： H03F3/26 ,  H03F3/3081 ,  H03F3/3091