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1. 发明授权

US4796140A Removable disk construction 失效
标题翻译：可移动磁盘结构
公开(公告)号：US4796140A
公开(公告)日：1989-01-03
申请号：US923497
申请日：1986-10-27
申请人： Manabu Wakabayashi , Tohru Sampei , Hiroshi Kanai , Tomiyoshi Satoo , Yosuke Nagano , Takeo Sonobe , Isao Utsugi
发明人： Manabu Wakabayashi , Tohru Sampei , Hiroshi Kanai , Tomiyoshi Satoo , Yosuke Nagano , Takeo Sonobe , Isao Utsugi
IPC分类号： G11B25/04 , G11B17/028 , G11B23/00 , G11B23/03
CPC分类号： G11B17/0284 , G11B23/0035
摘要： A rotary disk including a recording and reproducing sheet, and a hub formed of hard material secured to a central portion of the sheet. The hub comprises a center opening adapted to receive a main spindle of a turntable of disk driving means, two planar surfaces arranged in an intersecting relation to each other and formed on a projecting wall portion of the center opening, and a resilient member located in a position facing the two planar surfaces for pressing the spindle against the two planar surfaces. Even if the recording and reproducing sheet of the rotary disk is a thin magnetic sheet, there is no risk of damage of the sheet. When the rotary disk is set on the turntable, the center of rotation of the rotary disk and the center of rotation of the turntable can be automatically brought into alignment with each other.
摘要翻译：包括记录和再现片的旋转盘和由固定到片材的中心部分的硬质材料形成的轮毂。所述轮毂包括适于容纳盘驱动装置的转台的主轴的中心开口，并且形成在所述中心开口的突出壁部分上并且形成在所述中心开口的突出壁部分上的彼此相交的两个平面，以及位于面对两个平面的位置，用于将心轴压靠在两个平面上。即使旋转盘的记录和再现片是薄磁片，也不会损坏片。当旋转盘设置在转盘上时，旋转盘的旋转中心和转盘的旋转中心可以自动地彼此对准。

2. 发明授权

US4551777A Tracking servo system for magnetic recording and reproducing apparatus using flexible magnetic disk 失效
标题翻译：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
IPC分类号： G11B21/10 , G11B5/55 , G11B5/596
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。

3. 发明授权

US4422109A Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape 失效
标题翻译：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
申请人： Tohru Sampei , Naoya Fujita , Shigemitsu Higuchi , Masamichi Yamada , Kohichi Tomatsuri
发明人： Tohru Sampei , Naoya Fujita , Shigemitsu Higuchi , Masamichi Yamada , Kohichi Tomatsuri
IPC分类号： G11B5/02 , G11B5/035 , G11B23/00 , H03G5/00 , G11B5/45 , G11B5/47
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。

4. 发明授权

US4045744A Low-frequency power amplifier 失效
标题翻译：低频功率放大器
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
IPC分类号： H03F1/02 , H03F3/20 , H03F3/21 , H03F3/30 , H03F3/183
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.

5. 发明授权

US4422108A Tape recorder 失效
标题翻译：磁带录音机
公开(公告)号：US4422108A
公开(公告)日：1983-12-20
申请号：US383958
申请日：1982-06-01
申请人： Tohru Sampei , Naoya Fujita , Shigemitsu Higuchi , Masamichi Yamada , Kouichi Tomatsuri
发明人： Tohru Sampei , Naoya Fujita , Shigemitsu Higuchi , Masamichi Yamada , Kouichi Tomatsuri
IPC分类号： G11B5/035 , G11B15/02 , H03G5/00 , H03G5/16 , H03G5/18 , G11B5/45 , G11B5/47
CPC分类号： H03G5/00 , G11B15/02 , G11B5/035 , H03G5/165 , H03G5/18
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。

6. 发明授权

US4390747A Speech analyzer 失效
标题翻译：语音分析仪
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
IPC分类号： G10L11/00 , G10L11/04 , G10L1/00
CPC分类号： G10L25/90 , G10L25/00
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。

7. 发明授权

US4163197A Audio-frequency power amplifier 失效
标题翻译：音频功率放大器
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
IPC分类号： H03F1/32 , H03F3/18 , H03F3/181 , H03F3/183 , H03F3/20 , H03F3/30 , H05K1/02
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。

8. 发明授权

US4168471A Source follower circuit using FETs 失效
标题翻译：源极跟随器电路使用FET
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
IPC分类号： H03F3/20 , H03F3/30 , H03F3/34 , H03F3/345 , H03F3/50 , H03F3/185
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。

9. 发明授权

US4100501A Audio frequency power amplifier 失效
标题翻译：音频功率放大器
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
IPC分类号： H03F1/02 , H03F3/30 , H03F3/26
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。

10. 发明授权

US5084786A Magnetic tape memory apparatus with axially displaced heads enabling after recording and verification 失效
标题翻译：具有轴向位移磁头的磁带存储装置，可在记录和验证之后进行
公开(公告)号：US5084786A
公开(公告)日：1992-01-28
申请号：US224655
申请日：1988-07-27
申请人： Kazutoshi Konno , Hidehumi Goto , Hiroshi Chiba , Tohru Sampei
发明人： Kazutoshi Konno , Hidehumi Goto , Hiroshi Chiba , Tohru Sampei
IPC分类号： G11B5/008 , G11B5/53 , G11B15/467 , G11B20/10 , G11B20/12
CPC分类号： G11B15/4678 , G11B20/10 , G11B20/1209 , G11B5/008 , G11B5/0086 , G11B5/534 , G11B20/1211 , G11B2220/90 , G11B2220/913
摘要： A helical scan tape apparatus including a first pair of magnetic heads having mutually different azimuth angles disposed on a peripheral face of a rotary drum at an angle interval of 180 degrees so as to oppose each other, a second pair of magnetic heads disposed on of the rotary drum so as to be perpendicular to a disposition direction of the first magnetic heads, a magnetic tape helically wound around the rotary drum so as to extend over an angle of 90 degrees, the tape being moved while the drum is controlled to rotate in synchronism with a reference signal, the first magnetic heads having a wider gap width than a track pitch of tracks recorded on the tape without providing a guard band for enabling azimuth recording of a data signal on the tracks, the data signal being recorded repeatedly into a particular recording area, wherein the first magnetic heads are used substantially for recording and the second magnetic heads are used substantially for reproduction and are positioned with a downward shift in the height direction of the drum equivalent to half of a scanning width of the second magnetic heads as compared with said first magnetic heads. Alternatively, the second magnetic heads may be disposed with a predetermine amount of shift so that an end of said second magnetic heads opposite to a tape traveling direction is located within a track recorded in advance by a predetermined value.
摘要翻译：一种螺旋扫描带装置，包括第一对磁头，其具有相互不同的方位角，以相对于180度的角度间隔设置在旋转磁鼓的外周面上;第二对磁头，旋转鼓，以便垂直于第一磁头的配置方向，以旋转磁鼓的方式螺旋缠绕以便延伸超过90度的角度的磁带，当磁鼓被控制同步旋转时磁带被移动具有参考信号，第一磁头具有比记录在磁带上的轨道的轨道间距更宽的间隙宽度，而不提供用于使得轨道上的数据信号的方位记录的保护带，数据信号被重复记录到特定的记录区域，其中第一磁头用于基本上用于记录，并且第二磁头用于基本上用于再现，并且被定位相对于所述第一磁头，h相对于第二磁头的扫描宽度的一半，鼓的高度方向的向下移动相当于第二磁头的扫描宽度的一半。或者，第二磁头可以以预定量的偏移量设置，使得与磁带行进方向相反的所述第二磁头的端部位于预先记录的预定值的轨道内。

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