公开(公告)号：US4707654A

公开(公告)日：1987-11-17

申请号：US773302

申请日：1985-09-06

申请人： Toshiro Suzuki ,  Fumiaki Fujii ,  Izuru Yamada

发明人： Toshiro Suzuki ,  Fumiaki Fujii ,  Izuru Yamada

IPC分类号： G01R31/28 ,  G01R31/317

CPC分类号： G01R31/31701

摘要： An integrated circuit is constructed in order that tests can be conducted on a plurality of circuits to determine which of the circuits is defective. In particular, the circuit is constructed to allow such testing with the use of fewer input and output pins for testing. To accomplish this, a first buffer gate circuit, a resistor, and a second buffer gate are connected in series in the order mentioned between the output terminal of a first circuit and the input terminal of a second circuit. An input and output terminal pin for testing is located at a junction point of the resistor and second buffer gate.

摘要翻译： 构建集成电路，以便可以在多个电路上进行测试以确定哪些电路是有缺陷的。 特别地，电路被构造成允许使用较少的输入和输出引脚进行测试。 为了实现这一点，第一缓冲器门电路，电阻器和第二缓冲器栅极以第一电路的输出端子和第二电路的输入端子之间的顺序串联连接。 用于测试的输入和输出端子引脚位于电阻器和第二缓冲器门的接点处。

公开(公告)号：US4620239A

公开(公告)日：1986-10-28

申请号：US589645

申请日：1984-03-14

申请人： Fumiaki Fujii

发明人： Fumiaki Fujii

IPC分类号： G11B15/087 ,  G11B27/30 ,  G11B5/00 ,  G11B5/02

CPC分类号： G11B27/3018

摘要： A retrieval signal recording apparatus for magnetic recording/reproducing apparatus wherein when an information signal is recorded on a magnetic tape, a retrieval signal different from the information signal is recorded at the beginning of the recorded information signal so that the magnetic tape is stopped or made in the reproducing mode just when the retrieval signal is picked up from the tape under a high tape speed. In the retrieval signal recording apparatus, the retrieval signal is recorded for a certain time only at the beginning of recording the signal or at both the beginning and end of the recorded signal, and the recording time of the retrieval signal is changed in accordance with the switching of a plurality of tape speeds such that the length of the retrieval signal recorded on the magnetic tape is made substantially constant even if the tape speed is different.

摘要翻译： 一种用于磁记录/再现装置的检索信号记录装置，其中当信息信号被记录在磁带上时，在记录的信息信号的开始记录与信息信号不同的检索信号，使得磁带停止或制造 在再现模式下，只是当在高磁带速度下从磁带拾取检索信号时。 在检索信号记录装置中，检索信号仅在记录信号开始时记录一定时间，或者在记录信号的开始和结束处记录一段时间，并且检索信号的记录时间根据 切换多个磁带速度，使得即使磁带速度不同，记录在磁带上的检索信号的长度也基本上保持不变。

公开(公告)号：US4737864A

公开(公告)日：1988-04-12

申请号：US831290

申请日：1986-02-20

申请人： Masataka Sekiya ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Isao Fukushima ,  Fumiaki Fujii ,  Katsumi Sera ,  Takashi Furutani

发明人： Masataka Sekiya ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Isao Fukushima ,  Fumiaki Fujii ,  Katsumi Sera ,  Takashi Furutani

IPC分类号： H04N5/93 ,  G11B15/18 ,  H04N5/783 ,  H04N5/937

CPC分类号： H04N5/783 ,  G11B15/1875

摘要： A still picture reproducing system for a magnetic recording and reproducing apparatus is disclosed. The system sends one frame in order to shift a reproduction mode from ordinary reproduction to reproduction of a still picture by use of so-called "fine slow", sends one more frame if a noise is detected on a picture at this time, and stops if no noise is detected.

摘要翻译： 公开了一种用于磁记录和再现装置的静止图像再现系统。 系统发送一帧，以便通过使用所谓的“精细缓慢”将再现模式从普通再现移动到静止图像的再现，如果此时在图像上检测到噪声，则再发送一帧，并停止 如果没有检测到噪声。

公开(公告)号：US4562408A

公开(公告)日：1985-12-31

申请号：US560873

申请日：1983-12-13

申请人： Kenji Nagai ,  Fumiaki Fujii

发明人： Kenji Nagai ,  Fumiaki Fujii

IPC分类号： H03F3/345 ,  H03F1/08 ,  H03F3/30 ,  H03F3/34 ,  H03F3/45 ,  H03F3/16

CPC分类号： H03F3/45188 ,  H03F1/086 ,  H03F3/3023 ,  H03F2200/153 ,  H03F2203/45398 ,  H03F2203/45508 ,  H03F2203/45631

摘要： An amplifier comprising a pair of differential input MISFETs, a current mirror circuit connected between the drains of the differential input MISFETs and a power source terminal, a phase compensation circuit connected to the drain of one of the differential input MISFETs, an output stage amplification circuit amplifying the signal produced at the drain of one of the differential input MISFETs, a phase regulation circuit such as a capacitor connected to the other of the differential input transistors, and a feedback circuit feeding back the output signal produced from the output stage amplification circuit to the other of the differential input MISFETs in order to apply negative feedback to the amplifier. Since the capacitor is provided, the phase of the power source noise can be made substantially equal to the phase of noise occurring at the drain of one of the differential input MISFETs due to the power source noise. Hence, hardly any noise is produced from the output stage amplification circuit. Since feedback is applied to the amplifier, the noise occurring at the drain of the other of the differential input MISFETs operates in such a manner as to limit the amount of change of the drain voltage of one of the differential input MISFETs due to the noise. As a result, a large change of the output signal due to the power source noise can be prevented. Furthermore, since an element to be added for this purpose may be merely a capacitor, a significant increase in the number of circuit elements can be avoided.

摘要翻译： 一种放大器，包括一对差分输入MISFET，连接在差分输入MISFET的漏极和电源端子之间的电流镜电路，连接到差分输入MISFET之一的漏极的相位补偿电路，输出级放大电路 放大在差分输入MISFET中的一个的漏极产生的信号，连接到另一个差分输入晶体管的电容器等电容器，以及将由输出级放大电路产生的输出信号反馈到 另一个差分输入MISFET，以便向放大器施加负反馈。 由于提供了电容器，所以可以使电源噪声的相位基本上等于由于电源噪声而在差分输入MISFET之一的漏极处产生的噪声的相位。 因此，几乎不会从输出级放大电路产生任何噪声。 由于反馈被应用于放大器，所以在另一个差分输入MISFET的漏极处发生的噪声以限制由噪声引起的差动输入MISFET之一的漏极电压的变化量的方式工作。 结果，可以防止由于电源噪声引起的输出信号的大的变化。 此外，由于为此目的添加的元件可以仅仅是电容器，所以可以避免电路元件的数量的显着增加。

公开(公告)号：US4507792A

公开(公告)日：1985-03-26

申请号：US476620

申请日：1983-03-18

申请人： Kazuo Yamakido ,  Shiro Hagiwara ,  Fumiaki Fujii

发明人： Kazuo Yamakido ,  Shiro Hagiwara ,  Fumiaki Fujii

IPC分类号： H03M1/38 ,  H04B14/04 ,  H04B12/04 ,  H03K13/02

CPC分类号： H04B14/048

摘要： In a PCM encoder, in order to reduce noise in an idle channel or in the absence of any voice signal, a detector circuit is provided which detects the idle channel, and a circuit is connected to the detector circuit which fixes the polarity bit of the PCM signal produced by the PCM encoder when the detector circuit has detected the idle channel.

摘要翻译： 在PCM编码器中，为了减少空闲信道中的噪声或者没有任何语音信号，提供了一种检测电路，其检测空闲信道，并且电路连接到检测器电路，该电路将 当检测器电路检测到空闲信道时，由PCM编码器产生的PCM信号。