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1. 发明专利

JPS63280598A INFRARED-RAY WIRELESS REMOTE CONTROL DATA CONVERTER 失效
公开(公告)号：JPS63280598A
公开(公告)日：1988-11-17
申请号：JP11468287
申请日：1987-05-13
申请人： HITACHI LTD , HITACHI MICROCUMPUTER ENG
发明人： ISHIKAWA SHIGERU , TAKAHASHI YUZURU
IPC分类号： H04Q9/00
摘要： PURPOSE:To control each of plural devices to be controlled individually while being located at the same place by providing a control data conversion circuit converting control data from a wireless remote control transmitter. CONSTITUTION:An infrared-ray photodetection section 2 receiving infrared-ray remote control data from a transmitter 5 and a conversion section 35 converting data received by the section 2 into control data of the device to be controlled, and an infrared-ray emitting section 3 converting the data converted by the section 35 into infrared rays and outputting to the infrared-ray section of the device to be controlled are provided. Since the device to be controlled responds to the conversion of the received infrared-ray remote control data, then the operation by the control data of other devices to be controlled is avoided. Thus, even when plural devices to be controlled of the infrared-ray wireless remote control system are located at the same position, objective control is attained individually.

2. 发明专利

JPS59191983A Still picture reproducer of magnetic recording and reproducing device 失效
标题翻译：磁记录和再现设备的静态图像再现器
公开(公告)号：JPS59191983A
公开(公告)日：1984-10-31
申请号：JP6554983
申请日：1983-04-15
申请人： Hitachi Ltd
发明人： KOBORI YASUNORI , OKAMOTO CHIKAYUKI , SEKIYA MASATAKA , FUKUSHIMA ISAO , NISHIJIMA HIDEO , ISHIKAWA SHIGERU , KAWABATA HIROMI
IPC分类号： H04N5/93
CPC分类号： H04N5/93
摘要： PURPOSE:To suppress the generation of noise by detecting the signal corresponding to a noise part in a still picture screen with use of a horizontal synchronizing signal contained in a composite synchronizing signal and using a pulse to drive a tape driving motor. CONSTITUTION:In a still reproduction mode a switch 11 is connected to the (b) side, and a capstan motor 8 is driven with control by a still control means 12. A horizontal synchronizing signal A separated by a signal processing circuit 7 is impressed to a noise detecting means 13 and converted into a signal B with which the missing of horizontal synchronism, noise, etc. are detected. If a signal C lacks the horizontal synchronism, a noise part is decided by the second shot signal of the noise detection signal B. Then the signal C is delivered from a waveform shaping circuit 14. A drive pulse generating circuit 15 is triggered at the rise edge of the signal C, and a signal D is delivered. The signal D is supplied to a driving circuit 9, and a capstan motor 15 is pulse driven at a low speed.
摘要翻译：目的：通过使用包含在复合同步信号中的水平同步信号并使用脉冲来驱动磁带驱动电机，通过检测与静止图像屏幕中的噪声部分相对应的信号来抑制噪声的产生。构成：在静止再现模式中，开关11连接到（b）侧，主导电动机8由静止控制装置12控制地驱动。由信号处理电路7分离的水平同步信号A被压入噪声检测装置13，并被转换为检测到水平同步，噪声等缺失的信号B. 如果信号C缺少水平同步，则噪声部分由噪声检测信号B的第二拍摄信号决定。然后信号C从波形整形电路14传送。驱动脉冲发生电路15在上升时被触发信号C的边缘和信号D被传送。信号D被提供给驱动电路9，主导轴电动机15以低速脉冲驱动。

3. 发明专利

JPS5992610A FILTER CIRCUIT 失效
公开(公告)号：JPS5992610A
公开(公告)日：1984-05-28
申请号：JP20191082
申请日：1982-11-19
申请人： HITACHI LTD
发明人： FUKUSHIMA ISAO , OKADA YOSHINORI , MIURA KUNIAKI , KUDOU MITSURU , KANOU KENJI , KOBORI YASUNORI , ISHIKAWA SHIGERU
IPC分类号： H03H7/06 , H01L21/822 , H01L27/04 , H03H11/04 , H03H11/12
摘要： PURPOSE:To make a filter incorporated with IC by changing the variance of a filter consisting of a resistance and a coupling capacitance, to the voltage applied to said capacitance, and absorbing the voltage in the IC. CONSTITUTION:The IC includes resistances 12 (resistance value; R1) and 19 (resistance value R2) and junction capacitors 13 (capacity value; C1) and 20 (capacity value; C2) and their relative ratios a=R2/R1 and b=C2/C1 are suppressed with high precision by paying attention to their layout. Consequently, the transfer function of the filter is expressed by 1/(1+SC1R1)(1+SabC1R1). Then, variance in time constant C1R1 is absorbed while the relative ratios (a) and (b) are held to obtain a high-precision secondary low-pass filter. For this purpose, the voltage of a power source 26 is varied to specify the capacities of the junction capacitors 13 and 20. The DC voltages of the junction capacitors 13 and 20 are nearly equalized by a buffer and DC level shifter 18 and their variation voltages are equal, so the relative ratio (b) is maintained even when the applied voltage is varied.

4. 发明专利

JPS58222690A Recording circuit of magnetic recorder and reproducer 失效
标题翻译：磁记录器和复印机的记录电路
公开(公告)号：JPS58222690A
公开(公告)日：1983-12-24
申请号：JP10533382
申请日：1982-06-21
申请人： Hitachi Ltd
发明人： HIROSE KOUICHI , ISHIKAWA SHIGERU , KAWAMURA HITOSHI
IPC分类号： G11B20/02 , H04N9/79 , H04N9/83
CPC分类号： H04N9/79
摘要： PURPOSE:To attain low distortion and low voltage of a circuit, by providing a means suppressing a harmonic component of a recording signal not required for a magnetic recorder/reproducuer for operating a recording amplifier at a required minimum amplitude. CONSTITUTION:An output level of a video signal from an input terminal 1 is made constant at an AGC2, a luminance signal component of the output is applied to an FM modulator 5 via an LPF3 and a pre-emphasis circuit 4 and converted into an FM signal. The high frequency component is extracted from the converted FM signal at an HPF6, and the high frequency component is eliminated at the LPF and applied to a mixer 7. The color signal component is extracted from the other output of the AGC2 at the HPF or a BPF12, converted into a low frequency at a frequency conversion circuit 13, only the required component is extracted at an LPF14 and mixed with the FM signal at the mixer 7. The output of the mixer 7 is recorded on a magnetic tape 11 via a recording amplifier 8, a rotary transformer 9, and a magnetic head 10.
摘要翻译：目的：为了获得电路的低失真和低电压，通过提供抑制用于以所需最小幅度操作记录放大器的磁记录器/再现器不需要的记录信号的谐波分量的装置。构成：来自输入端子1的视频信号的输出电平在AGC2处恒定，输出的亮度信号分量通过LPF3和预加重电路4施加到FM调制器5，并被转换为FM 信号。以HPF6从转换的FM信号中提取高频分量，并且在LPF处消除高频分量并将其施加到混频器7.彩色信号分量从HPF的另一输出提取，或者 BPF12在频率转换电路13中被转换为低频，仅在LPF14处提取必需的分量并在混频器7与FM信号混合。混频器7的输出通过记录被记录在磁带11上放大器8，旋转变压器9和磁头10。

5. 发明专利

JPS5718355A INTEGRATED CIRCUIT 失效
公开(公告)号：JPS5718355A
公开(公告)日：1982-01-30
申请号：JP9274680
申请日：1980-07-09
申请人： HITACHI LTD
发明人： NAKAGAWA HIMIO , OOTSUKA SUSUMU , ISHIKAWA SHIGERU
IPC分类号： H01L27/082 , H01L21/331 , H01L21/8222 , H01L21/8228 , H01L27/02 , H01L27/06 , H01L29/73
摘要： PURPOSE:To obtain the integrated circuit in which a signal output pin and a control signal pin are combinedly used by a method wherein the substrate signal current of PNP lateral transistors is removed using an NPN diode. CONSTITUTION:The base of the transistors Q4 and Q5 and a collector are connected and used as the NPN diode. The signal current flowing to the substrate is prevented by designing for sufficiently reduced collector saturation resistance of the NPN transistor. A controlling terminal 4 is connected to an IC pin 2 through the intermediary of an output terminal 3 and a diode D1, and the number of pins used is reduced by combinedly using the output pin and the pin for the control signal input. When the pin is used as an output terminal, the Q1 located inside the IC is operated by having the terminal 4 in sufficiently low voltage and when it is used as a control input terminal, a high voltage is applied to the terminal 4, the current on the Q1 is cut and detection is performed by a Q3. According to this constitution, the erroneous operation due to the leak current of the lateral transistors is prevented, thereby enabling to design the IC circuit easily.

6. 发明专利

JPS546423A CHROMINANCEESUBCARRIERRPHASE CONTROLLER 失效
公开(公告)号：JPS546423A
公开(公告)日：1979-01-18
申请号：JP7107777
申请日：1977-06-17
申请人： HITACHI ELECTRONICS , HITACHI LTD
发明人： WATAYA YOSHIZUMI , ISHIKAWA SHIGERU
IPC分类号： G11B20/02 , G11B5/027 , H04N9/84
摘要： PURPOSE:To simplify burst detection and phase inverting operation, and to downscale the circuit by controlling the phase-switching sequence of a 90 deg.-phase advancement-delay circuit indirectly without inverting a signal directly.

7. 发明专利

JPH0415673B2 失效
公开(公告)号：JPH0415673B2
公开(公告)日：1992-03-18
申请号：JP10548482
申请日：1982-06-21
申请人： HITACHI LTD
发明人： OKADA YOSHINORI , NAKAGAWA HIMIO , ISHIKAWA SHIGERU , KAWAMURA HITOSHI
IPC分类号： H04N5/91 , H04N5/53 , H04N5/93 , H04N9/87

8. 发明专利

JPH0380391B2 失效
公开(公告)号：JPH0380391B2
公开(公告)日：1991-12-24
申请号：JP16096782
申请日：1982-09-17
申请人： HITACHI LTD
发明人： OKADA YOSHINORI , NAKAGAWA HIMIO , ISHIKAWA SHIGERU , KAWAMURA HITOSHI
IPC分类号： H04N5/92 , H04N5/08 , H04N5/18 , H04N5/91 , H04N9/793 , H04N9/83

9. 发明专利

JPS6252993B2 失效
公开(公告)号：JPS6252993B2
公开(公告)日：1987-11-09
申请号：JP13418079
申请日：1979-10-19
申请人： HITACHI LTD
发明人： KOJIMA NOBORU , SHIBATA AKIRA , ISHIKAWA SHIGERU , KAWAMURA HITOSHI
IPC分类号： H04N5/93 , G11B20/02 , H04N5/91 , H04N5/922

10. 发明专利

JPS5975710A Integrated circuit 失效
标题翻译：集成电路
公开(公告)号：JPS5975710A
公开(公告)日：1984-04-28
申请号：JP18601582
申请日：1982-10-25
申请人： Hitachi Ltd
发明人： OKADA YOSHINORI , FUKUSHIMA ISAO , MIURA KUNIAKI , KOBORI YASUNORI , KUDOU MITSURU , KANOU KENJI , ISHIKAWA SHIGERU
IPC分类号： H01L21/822 , H01L27/04 , H03G5/02 , H03H7/06 , H03H11/04
CPC分类号： H03H11/04
摘要： PURPOSE:To integrate a filter or equalizer by using an integrated transistor (TR) as a variable resistance element and constituting the filter or equalizer circuit of the element, and adjusting the value of said element by an external IC signal. CONSTITUTION:A constant current source 39 consists of a TR18 and a resistance 27 and its current value I1 varies with the voltage V36 at a terminal 36. Therefore, the impedance values re15 and re21 of a TR15 and a diode 21 are so determined that re15=re21=kT/qI1; and re15 and re21 are variable by a variable resistance 33 outside of the IC. Then, TRs 16, 17 and diodes 22, 23 are provided in the same way and an equivalent circuit shown in a figure is obtained. The relative value precision of integrated elements in the same chip is extremely high, so even when the integrated elements have variance, variance in time constant among LPFs of respective stages is nearly at the same ratio. For this purpose, the values I1, I2, and I3 of constant current sources 39, 40, and 41 are varied by a voltage 36 to adjust variable resistances 42-47 in the IC, and each variance is absorbed to obtain desired LPF characteristics.
摘要翻译：目的：通过使用集成晶体管（TR）作为可变电阻元件来集成滤波器或均衡器，并构成元件的滤波器或均衡器电路，并通过外部IC信号调整所述元件的值。构成：恒流源39由TR18和电阻27组成，其电流值I1随着端子36处的电压V36而变化。因此，确定TR15和二极管21的阻抗值re15和re21，使得re15 = RE21 = KT / QI1; 并且re15和re21由IC外部的可变电阻33变化。然后，以相同的方式设置TR16,17和二极管22,23，并且获得图中所示的等效电路。同一芯片中集成元件的相对值精度非常高，即使集成元素有差异，各级LPF之间的时间常数差异也几乎相同。为此，恒流源39,40和41的值I1，I2和I3被改变电压36以调节IC中的可变电阻42-47，并且吸收每个方差以获得期望的LPF特性。

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