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公开(公告)号：US4422108A
公开(公告)日：1983-12-20
申请号：US383958
申请日：1982-06-01
摘要： A tape recorder comprises, in its signal recording path, a variable gain circuit compensating the sound recording sensitivity of a magnetic tape and two variable equalizers compensating the frequency characteristic of the magnetic tape in the intermediate and high frequency ranges respectively. Reference signals at three different frequencies are successively supplied to the signal recording path to be recorded on the magnetic tape, and the signals of different reference frequencies are successively reproduced from the magnetic tape to be then arithmetically processed so as to optimize the gain of the variable gain circuit and the degree of frequency characteristic compensation by the first and second variable equalizers.
摘要翻译： 磁带录像机在其信号记录路径中包括补偿磁带的录音灵敏度的可变增益电路和分别补偿中频和高频范围内磁带的频率特性的两个可变均衡器。 将三个不同频率的参考信号连续地提供给要记录在磁带上的信号记录路径，并且从磁带连续再现不同参考频率的信号，然后进行算术处理，以便优化变量的增益 增益电路和第一和第二可变均衡器的频率特性补偿程度。
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2.发明授权Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape 失效磁记录和再现设备可以自动调整到每个单独的磁带
公开(公告)号：US4422109A
公开(公告)日：1983-12-20
申请号：US390884
申请日：1982-06-22
CPC分类号： G11B23/0007 , G11B5/02 , G11B5/035 , H03G5/00
摘要： A magnetic recording and reproducing apparatus comprises a source for producing test signals, a variable-gain amplifier, an equalizer, a recording bias generating circuit, a control unit for supplying control signals to the amplifier, equalizer and recording bias generating circuit, a memory and an operating circuit unit. The apparatus is automatically adjusted to each individual magnetic tape in use in such a manner that: a first test signal from the source is recorded on a magnetic tape with a preset bias control signal, the recorded first test signal is reproduced, the bias control signal is adjusted to provide a maximum HF saturation level and a minimum distortion to thereby determine an optimum bias control signal, and the proper bias control signal is fixed for said bias generating circuit; another test signal from the source is recorded on the magnetic tape with a preset gain control signal, the recorded other test signal is reproduced and is compared with a reference value at the operating circuit unit to provide an error signal, and the resulting error signal is fed through the memory to the control unit to renew the preset gain control signal for said amplifier. The adjustment of the frequency response control signal for the equalizer is effected in the same manner as the adjustment of the gain control signal.
摘要翻译： 磁记录和再现装置包括用于产生测试信号的源，可变增益放大器，均衡器，记录偏置产生电路，用于向放大器提供控制信号的控制单元，均衡器和记录偏置产生电路，存储器和 一个操作电路单元。 该装置在使用中被自动调整到每个单独的磁带，使得：来自源的第一测试信号被记录在具有预设偏置控制信号的磁带上，记录的第一测试信号被再现，偏置控制信号 被调整以提供最大HF饱和电平和最小失真，从而确定最佳偏置控制信号，并且对于所述偏置发生电路固定适当的偏置控制信号; 来自源的另一个测试信号用预设的增益控制信号记录在磁带上，记录的其它测试信号被再现，并与操作电路单元处的参考值进行比较以提供误差信号，并且所得到的误差信号为 通过存储器馈送到控制单元以更新用于所述放大器的预设增益控制信号。 均衡器的频率响应控制信号的调整以与增益控制信号的调整相同的方式进行。
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3.发明授权Tracking servo system for magnetic recording and reproducing apparatus using flexible magnetic disk 失效用于使用磁性磁盘的磁记录和再现装置的跟踪伺服系统
公开(公告)号：US4551777A
公开(公告)日：1985-11-05
申请号：US407080
申请日：1982-08-11
申请人： Tadashi Saito , Shigemitsu Higuchi , Kazutoshi Konno , Tohru Sampei , Kenji Hayashi , Yoshihiko Noro , Manabu Wakabayashi
发明人： Tadashi Saito , Shigemitsu Higuchi , Kazutoshi Konno , Tohru Sampei , Kenji Hayashi , Yoshihiko Noro , Manabu Wakabayashi
CPC分类号： G11B5/5521 , G11B5/59633
摘要： A tracking servo system for a magnetic recording and reproducing apparatus uses a flexible magnetic disk having thereon at least first, second and third tracks each of which includes a data track portion and a pair of servo track portions located on both sides of the data track portion. Tracking signals having different frequencies are recorded on the first, second and third servo track pairs. Servo and data heads are formed in a unitary structure. When the data head records an information signal on the second data track portion or reads out the recorded information signal therefrom, the servo head reads out the tracking signals recorded on the first and third servo track portions.
摘要翻译： 用于磁记录和再现装置的跟踪伺服系统使用其上具有至少第一，第二和第三磁道的柔性磁盘，每个磁道包括数据磁道部分和位于数据磁道部分两侧的一对伺服磁道部分 。 具有不同频率的跟踪信号被记录在第一，第二和第三伺服轨道对上。 伺服和数据头形成为一体的结构。 当数据头在第二数据轨道部分记录信息信号或从其读出记录的信息信号时，伺服头读出记录在第一和第三伺服磁道部分上的跟踪信号。
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4.发明授权Alarm device for a vehicle including priority control for plural alarm conditions 失效一种用于车辆的报警装置，包括多个报警条件的优先控制
公开(公告)号：US4401971A
公开(公告)日：1983-08-30
申请号：US242187
申请日：1981-03-10
申请人： Tadashi Saito , Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki , Shigemitsu Higuchi , Hiroshi Ozawa , Yasunari Tanaka
发明人： Tadashi Saito , Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki , Shigemitsu Higuchi , Hiroshi Ozawa , Yasunari Tanaka
IPC分类号： B60R16/02 , B60R16/037 , G07C5/08 , G08B19/00
CPC分类号： B60R16/0373 , G07C5/0833
摘要： An alarm device for a vehicle comprises sensors for detecting abnormal states of the vehicle, a logic circuit for receiving the outputs of the sensors and producing one or more alarm speech designation signals and an alarm speech generator responsive to the alarm designation signal. The logic circuit includes a priority circuit for determining the order of precedence of the abnormal states represented by the detection signals on the basis of the degree of emergency, so that the alarm speech is concerned with the most emergent alarm when two or more abnormal states are detected simultaneously. The logic circuit may further include a switch circuit for disabling at least one of the detection signals so that a vehicle driver having taken notice of particular alarms is not disturbed by excessive alarming.
摘要翻译： 用于车辆的报警装置包括用于检测车辆的异常状态的传感器，用于接收传感器的输出并产生一个或多个报警语音指定信号的逻辑电路和响应于报警指定信号的报警语音发生器。 该逻辑电路包括一个优先电路，用于根据紧急程度来确定由检测信号表示的异常状态的优先次序，使得当两个或多个异常状态为 同时检测。 逻辑电路还可以包括用于禁用至少一个检测信号的开关电路，使得已经注意到特定警报的车辆驾驶员不被过度报警所干扰。
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公开(公告)号：US4613920A
公开(公告)日：1986-09-23
申请号：US502269
申请日：1983-06-08
CPC分类号： G11B5/2655 , G11B5/4886
摘要： A magnetic head suitable for use in a magnetic disk. In a magnetic head in accordance with the present invention, a read/write head and an erase head are placed side by side in the rotation direction of the magnetic disk. A gap in the read/write head is placed at a distance of l from a pair of gaps in the erase head. In addition, the read/write gap in the read/write head is deviated by a distance L in the external circumference direction with respect to a pair of erase gaps in the erase head.
摘要翻译： 适用于磁盘的磁头。 在根据本发明的磁头中，读/写磁头和擦除头在磁盘的旋转方向上并排放置。 读/写头中的间隙与擦除头中的一对间隙的距离l放置。 此外，读/写头中的读/写间隙相对于擦除头中的一对擦除间隙在外圆周方向上偏离了距离L.
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公开(公告)号：US4045744A
公开(公告)日：1977-08-30
申请号：US734602
申请日：1976-10-21
申请人： Tohru Sampei
发明人： Tohru Sampei
CPC分类号： H03F3/21 , H03F1/0244 , H03F3/3076
摘要： The same input signal is applied to each of the bases of a pair of amplifying transistors, while an output signal is produced at the emitter of one of the pair of transistors. The collector of the one transistor is connected to the emitter of the other transistor. The junction point between the collector of the one transistor and the emitter of the other transistor is connected through a diode to a first DC power source of low voltage. A second power source of high voltage is connected to the collector of the other transistor, thereby selectively supplying electric power to the one transistor in accordance with the signal level of the input signal. An inductance element is connected in series with the diode to generate a counter electromotive force to prevent a reverse current from flowing through the diode during the cut-off state of the diode, thus providing a highly efficient amplifier with little distortion.
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公开(公告)号：US4390747A
公开(公告)日：1983-06-28
申请号：US191294
申请日：1980-09-26
申请人： Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki
发明人： Tohru Sampei , Akihiro Asada , Yoshihiro Ohta , Syunji Iwasaki
摘要： A speech analyzer for extracting spectrum information and pitch information from natural speech wherein an accuracy of pitch extraction is enhanced by sampling pitch at a sampling frequency which is higher than a sampling frequency for analyzing the spectrum information.
摘要翻译： 一种用于从自然语音提取频谱信息和音调信息的语音分析器，其中通过以高于用于分析频谱信息的采样频率的采样频率采样音调来增强音高提取的精度。
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公开(公告)号：US4163197A
公开(公告)日：1979-07-31
申请号：US878401
申请日：1978-02-16
申请人： Tohru Sampei
发明人： Tohru Sampei
CPC分类号： H03F3/3001 , H03F3/181 , H05K1/0233
摘要： In a push-pull power amplifier which amplifies an audio-frequency signal supplied thereto and supplies its output signal to a load, a pair of output transistors constituting the push-pull circuit are alternately turned on and off according to the polarity of the input signal. In the power amplifier, current flowing through the current path leading from a DC power source to each of the output transistors includes many harmonic components besides its fundamental wave component. These harmonic components of current are introduced through a stray magnetic field into the signal path in the power amplifier thereby producing distortion of the signal supplied to the load. To prevent this signal distortion, the signal path of the audio-frequency signal is magnetically coupled to the current paths from the DC power source, so that the harmonic components of current flowing through the current paths can be supplied to the signal path with the phase and the signal level which cancel the harmonic components of current introduced into the signal path through the stray magnetic field thereby minimizing distortion of the amplifier output signal.
摘要翻译： 在放大提供给其的音频信号并将其输出信号提供给负载的推挽功率放大器中，构成推挽电路的一对输出晶体管根据输入信号的极性交替地导通和截止 。 在功率放大器中，流过从直流电源引导到每个输出晶体管的电流路径的电流包括除了其基波分量之外的许多谐波分量。 电流的这些谐波分量通过杂散磁场引入功率放大器中的信号路径，从而产生提供给负载的信号的失真。 为了防止这种信号失真，音频信号的信号路径被磁耦合到来自直流电源的电流路径，使得流过电流路径的电流的谐波分量可以被提供给具有相位的信号路径 以及消除通过杂散磁场引入信号路径的电流的谐波分量的信号电平，从而使放大器输出信号的失真最小化。
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公开(公告)号：US4168471A
公开(公告)日：1979-09-18
申请号：US895986
申请日：1978-04-13
申请人： Tohru Sampei
发明人： Tohru Sampei
CPC分类号： H03F3/3001 , H03F3/505
摘要： A source follower circuit using at least one FET in which an end of a resistor element is connected to the gate terminal of the FET and the other end of the resistor element is connected to a signal source which generates a comparatively large AC input signal. The resistance of the resistor element is determined to be at such a value as to prevent oscillation of the FET which is likely to occur depending on the length of the wiring between the signal source and gate terminal and the length of wiring between the source terminal and a load.
摘要翻译： 源极跟随器电路使用至少一个FET，其中电阻元件的端部连接到FET的栅极端子，并且电阻器元件的另一端连接到产生相对较大的AC输入信号的信号源。 电阻元件的电阻被确定为这样的值，以防止根据信号源和栅极端子之间的布线的长度以及源极端子和栅极端子之间的布线长度而容易发生的FET的振荡 负载。
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公开(公告)号：US4100501A
公开(公告)日：1978-07-11
申请号：US767963
申请日：1977-02-11
申请人： Harushige Nakagaki , Tohru Sampei , Nobutaka Amada , Tatsuo Baba
发明人： Harushige Nakagaki , Tohru Sampei , Nobutaka Amada , Tatsuo Baba
CPC分类号： H03F1/0244 , H03F3/3076
摘要： An audio frequency power amplifier wherein an input signal is applied to respective input electrodes of a pair of transistors of the same conductivity type to produce an output signal at an output electrode of one of the pair of transistors. A common electrode of the one transistor is connected with an output electrode of the other transistor and a power from a first D.C. power supply is supplied to the junction thereof through a diode while a power is supplied to a common electrode of the other transistor from a second D.C. power supply having a higher voltage than that of the first D.C. power supply. The other transistor and the diode are alternately rendered conductive and non-conductive in response to the signal level of the input signal, a capacitor is connected to the input electrode of the other transistor, which capacitor is charged during the turn-off of the other transistor whereby the charge is supplied to the other transistor upon turning on of the other transistor to shorten the rise time.
摘要翻译： 一种音频功率放大器，其中输入信号被施加到相同导电类型的一对晶体管的相应输入电极，以在该对晶体管之一的输出电极处产生输出信号。 一个晶体管的公共电极与另一个晶体管的输出电极连接，并且来自第一直流电源的功率通过二极管被提供给其结，同时从另一个晶体管的公共电极向 第二直流电源的电压高于第一直流电源的电压。 另一个晶体管和二极管响应于输入信号的信号电平交替地导通和不导通，电容器连接到另一个晶体管的输入电极，该电容器在另一个晶体管的截止期间被充电 晶体管，由此在另一晶体管导通时将电荷提供给另一晶体管以缩短上升时间。
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