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61. 发明专利

JPS52141518A CONTROL SYSTEM OF SCANNING BEAM QUANTITY OF PICKUP TUBE 失效
公开(公告)号：JPS52141518A
公开(公告)日：1977-11-25
申请号：JP5780176
申请日：1976-05-21
申请人： HITACHI LTD
发明人： SATOU KAZUHIRO , OZAWA NAOKI , NAGAHARA SHIYUUSAKU
IPC分类号： H04N9/09 , H01J29/52
摘要： PURPOSE:The quantity of electron beams of single-tube color pick up tubes is controlled by a simple circuit to eliminate the beam deficiency phenomenon arising from the increase in the quantity of incident light, thereby preventing the deterioration of the picture quality.

62. 发明专利

JPS51134020A SCANNING CIRCUIT 失效
公开(公告)号：JPS51134020A
公开(公告)日：1976-11-20
申请号：JP5741075
申请日：1975-05-16
申请人： HITACHI LTD
发明人： KOIKE AKIO , MIURA KUNIAKI , NISHIMURA NAOTO , SATOU KAZUHIRO , TAKAHASHI KENJI , NAGAHARA SHIYUUSAKU
IPC分类号： H04N3/14 , H04N1/04 , H04N1/19 , H04N5/30
摘要： PURPOSE:To get out of the luminous signal's output period a differential wave noise generated when an input pulse is applied and make the best use of all signals from the photoelectric conversion element.

63. 发明专利

JPS60250787A SOLID-STATE IMAGE PICKUP DEVICE AND METHOD OF DRIVING 失效
公开(公告)号：JPS60250787A
公开(公告)日：1985-12-11
申请号：JP10636684
申请日：1984-05-28
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI , KOIKE NORIO , ITOU KENJI , OGINO TAKESHI , NAGAHARA SHIYUUSAKU
IPC分类号： H01L27/14 , H01L27/148 , H04N5/335 , H04N5/341 , H04N5/359 , H04N5/3722 , H04N5/374
摘要： PURPOSE:To double the dynamic range in vertical direction by dividing signal charge in a photodiode into lines of odd number and even number during vertical flyback time of TV signals, and shifting them to upper and lower sections and reading the charge in video period in order from the smaller number of line having signal charge. CONSTITUTION:Signal charge of odd number lines is accumulated in an acumulting section 700' in order of 1, 3, 5...th lines at a position near CCD300' in the horizontal direction, and signal charge of even number lines is accumulated in an accumulating section 700 in order of 2, 4, 6...th lines at a position near CCD300 in the horizontal direction, and read out successively from singnals in low-numbered lines. In this vertical video period, the signal charge in accumulating sections in every upper and lower line is shifted to CCD300, 300' in the horizontal direction, and at the same time, read out in a horizontal video period. In such a way, signal charge in two lines can be read out independently. As every one line is accumulated in separate area and transferred, substantial CCD dynamic range in the vertical direction can be increased twice as much as before.

64. 发明专利

JPS60150384A SOLID-STATE IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS60150384A
公开(公告)日：1985-08-08
申请号：JP557684
申请日：1984-01-18
申请人： HITACHI LTD
发明人： OZAWA NAOKI , AKIYAMA TOSHIYUKI , NAGAHARA SHIYUUSAKU , TAKEMOTO KAYAO
IPC分类号： H01L27/146 , H04N5/335 , H04N5/341 , H04N5/347 , H04N5/359 , H04N5/363 , H04N5/3728 , H04N5/374 , H04N5/378
摘要： PURPOSE:To decrease simultaneously vertical smear and reset noise due to subtraction by attaining resetting in a frequence half the clock frequency of a horizontal CCD in the horizontal CCD transferring two electric charges in one repetition of a transfer electrode. CONSTITUTION:A rest pulse fed to a gate of a reset transistor (TR) 13 is frequency-divided by a half of the clock frequency of the horizontal CCD by a frequency divider 18. That is, the horizontal CCD10 is reset by a frequency half the clock frequency so as to decrease the vertical smear and reset noise due to subtraction. In this device, the frequency half the pulse frequency fc applied to the final stage electrode H3, that is, one reset pulse to pulses applied to the electrode H3 is used. That is, the phase of a reset pulse is set as shown in Fig., and after a photoelectron change QS mixed with vertical smear is outputted from the horizontal CCD10, while an electronic charge QV1 only with the vertical smear is outputted, the reset TR13 is switched.

65. 发明专利

JPS59224928A PULSE GENERATING CIRCUIT 失效
公开(公告)号：JPS59224928A
公开(公告)日：1984-12-17
申请号：JP8946384
申请日：1984-05-07
申请人： HITACHI LTD , HITACHI ELECTRONICS
发明人： MURATA NORIO , SATOU KAZUHIRO , SATOU KAZUO , NAGAHARA SHIYUUSAKU
IPC分类号： H04N3/15 , G09G3/00 , H03L7/06 , H03L7/08 , H03L7/083 , H03L7/097 , H03L7/24 , H04N3/14 , H03K21/00 , H03L3/00
摘要： PURPOSE:To improve the temperature characteristic of an oscillating circuit suitable for a driving pulse generating circuit and starting oscillation always at the same phase in synchronizing with a trigger pulse by providing an oscillator, a frequency dividing circuit frequency-dividing an output pulse of the oscillator and an FF circuit. CONSTITUTION:The oscillator 50 starts oscillation at the same phase in synchronizing with the trigger pulse 16 and its oscillating frequency is controlled by a power supply voltage. A frequency dividing circuit (counter circuit) 51 frequency- divides an output pulse of the oscillator 15 into 1/m. Since a pulse generated from the frequency dividing circuit 51 is superimposed on a video signal and becomes a noise source deteriorating a screen, its operation is controlled by the FF circuit 54, causing the oscillator to be operated only at the outside of a horizontal blanking period not causing a video output. That is, the circuit 54 is set by a horizontal synchronizing pulse 16 and an operation command signal Q is given to the circuit only during the set period. The circuit counts an input pulse from the oscillator 50 accordingly and an output pulse in counting m set of pulses during the horizontal blanking period resets the circuit 54.

66. 发明专利

JPS59221895A DRIVING DEVICE FOR SHIFT REGISTER 失效
公开(公告)号：JPS59221895A
公开(公告)日：1984-12-13
申请号：JP9565283
申请日：1983-06-01
申请人： HITACHI ELECTRONICS , HITACHI LTD
发明人： FUKUDA TOSHIKATSU , TAKAHASHI KENJI , OZAWA NAOKI , NAGAHARA SHIYUUSAKU , TAKEMOTO KAYAO
IPC分类号： G11C19/00 , G11C19/28 , G11C27/04 , H04N3/14 , H04N3/15
摘要： PURPOSE:To reduce considerably a current consumption by designating an ON- period of a switching element for the input capacitor of a shift register to a prescribed value, and feeding back the capacitance discharge current to a power supply via a resonance circuit comprising a capacitor and a coil. CONSTITUTION:A switching element 34 connected in parallel is turned on and off by a pulse whose ON-period is tON-period and a load capacitor 31 of the shift register is driven at a half cycle of a sinusoidal wave of an amplitude Vc1. In selecting the period tON so as to satisfy the condition expressed in the quation, the capacitor 31 is charged by a current flowing to the resonance circuit comprising the resonance coil 33 and the capacitor 31 when the element 34 is turned off. The discharge current is fed back to the power supply when the next element 34 is turned on by this charging voltage and the current consumption is reduced to zero in the ideal state when each element has no loss. Thus, the current consumption is reduced largely, in the equation, ts is the switching period and Vcc is the power supply voltage.

67. 发明专利

JPS5999882A SOLID-STATE IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS5999882A
公开(公告)日：1984-06-08
申请号：JP20829982
申请日：1982-11-27
申请人： HITACHI LTD
发明人： NISHIZAWA SHIGEKI , KOIKE NORIO , NAGAHARA SHIYUUSAKU
IPC分类号： H04N5/30 , H04N5/335 , H04N5/341 , H04N5/359 , H04N5/372
摘要： PURPOSE:To obtain a video signal with high picture quality by separating an optical signal including vertical smear stored on a vertical scanning CCD and the vertical smear and transmitting it to a horizontal scanning CCD to obtain the difference between the optical signal and the vertical smear from the transferred signal. CONSTITUTION:Photo diodes PD11-PD(2m)n are arranged horizontally and vertically in an array as the photoelectric element train, the optical signal stored on the element train is read out by vertical and horizontal CCDs 22, 31, 32. The CCD22 is formed into a three-layer structure of n-semiconductor layer, p-semiconductor layer and n-semiconductor layer, a p-type impurity is introduced under each electrode to form an n layer. The optical signal including the vertical smear is separated from the vertical smear and transferred to the CCD31, 32 by transferring repetitively two signals by the CCD22. The difference between the optical signal and the vertical smear is obtained from the output of the CCD31, 32, allowing to output the video signal with high quality.

68. 发明专利

JPS5939175A Electronic camera device 失效
标题翻译：电子相机设备
公开(公告)号：JPS5939175A
公开(公告)日：1984-03-03
申请号：JP14940382
申请日：1982-08-28
申请人： Hitachi Ltd
发明人： SATOU KAZUHIRO , IZUMIDA MORIJI , NAGAHARA SHIYUUSAKU
IPC分类号： H04N5/765 , H04N1/40 , H04N5/225 , H04N5/235 , H04N5/335 , H04N5/353 , H04N5/369 , H04N5/378 , H04N5/781
CPC分类号： H04N5/2353 , H04N1/40056
摘要： PURPOSE: To vary freely a shutter speed, by synchronizing an image pickup device and an optical shutter and stopping the drive of the image pickup device while the optical shutter is opened, in an electronic camera device for still picture.
CONSTITUTION: In depressing a shutter button 8, a pulse 31 is generated and a shutter opening pulse 33 synchronized with a pulse 30 is generated in a pulse generating circuit 17. The shutter opening pulse 33 activates an electromagnet switch 16 to operate a shutter 15. A pulse 34 representing the opening of the shutter is formed with a switch 20 interlocked with the shutter 15 and a pulse 36 is formed from a circuit 18 outputting a pulse while, the shutter is opened. Further, a circuit 19 stopping the signal readout of an image pickup element is operated and the signal readout of the image pickup element is stopped. Thus, the long time exposure is attained.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：在静止图像的电子照相机装置中，通过同步图像拾取装置和光学快门并在光学快门打开时停止图像拾取装置的驱动来自由地改变快门速度。构成：在按下快门按钮8时，产生脉冲31，并且在脉冲发生电路17中产生与脉冲30同步的快门打开脉冲33.快门打开脉冲33启动电磁开关16以操作快门15。表示快门开口的脉冲34形成有与快门15互锁的开关20，并且在打开快门的同时从输出脉冲的电路18形成脉冲36。此外，停止图像拾取元件的信号读出的电路19被操作，并且停止图像拾取元件的信号读出。因此，达到长时间曝光。

69. 发明专利

JPS5932271A Broad band magnetic video recorder 失效
标题翻译：宽带磁力录像机
公开(公告)号：JPS5932271A
公开(公告)日：1984-02-21
申请号：JP14111782
申请日：1982-08-16
申请人： Hitachi Ltd
发明人： UMEMOTO MASUO , NAGAHARA SHIYUUSAKU , TANAKA SEIJI
IPC分类号： H04N5/922 , H04N5/782 , H04N5/7826
CPC分类号： H04N5/782
摘要： PURPOSE:To ensure the signal-to-noise ratio of a VTR, by selecting a time constant of a video emphasis circuit to a specific range, in the VTR of highly accurate television system. CONSTITUTION:When a video signal for a highly accurate television system is inputted to an input terminal 1, the frequency is limited to a recordable band for a recorder/reproducer with a low pass filter 2, inputted to a video emphasis circuit 3 whose time constant is selected as 0.15musec
摘要翻译：目的：为了确保VTR的信噪比，通过选择视频强调电路的时间常数达到特定范围，在高精度电视系统的VTR中。构成：将用于高精度电视系统的视频信号输入到输入端子1时，频率被限制为具有低通滤波器2的记录器/再现器的可记录频带，输入到视频加重电路3，其时间常数被选择为0.15musec

70. 发明专利

JPS5911073A Signal processing circuit of solid-state image pickup device 失效
标题翻译：固态图像拾取器件的信号处理电路
公开(公告)号：JPS5911073A
公开(公告)日：1984-01-20
申请号：JP10768183
申请日：1983-06-17
申请人： Hitachi Ltd
发明人： OOBA SHINYA , KUBO SEIJI , TAKEMOTO KAYAO , TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , NAGAHARA SHIYUUSAKU , NODA MASARU , HANAMURA SHIYOUJI , AOKI MASAKAZU
IPC分类号： H01L27/146 , H04N5/30 , H04N5/335 , H04N5/357 , H04N5/374
CPC分类号： H04N5/30
摘要： PURPOSE:To have actuation and no actuation of the amplifier of a signal processing circuit when a horizontal switch is turned on and off respectively, by inserting a reset switch between a preamplifier and a feedback resistance. CONSTITUTION:A feedback resistance Rf has 100-500kOMEGA resistance value and 10-30pF output line capacity and a preamplifier has about 100 gain Av. The resistance Rf is set in parallel to the preamplifier. Under such conditions, the input impedance Zin of the preamplifier is set as 100kOMEGA/100=1kOMEGA during operation of the preamplifier. Then the signal charge of the capacity 66 is quickly read out. While the impedance Zin is equal to the resistance Rf itself while the preamplifier has no actuation, and the time constants of the capacity 66 and the impedance Zin are set at >=1mus. Then the signal is read out at a high speed of 5-20MHz. Therefore the signal charge is held at an output capacity.
摘要翻译：目的：通过在前置放大器和反馈电阻之间插入复位开关，当水平开关分别导通和关断时，使信号处理电路的放大器得以启动和不致动作。构成：反馈电阻Rf具有100-500kOMEGA电阻值和10-30pF输出线容量，前置放大器具有约100增益Av。电阻Rf与前置放大器并联设置。在这种条件下，前置放大器的输入阻抗Zin在前置放大器的工作期间被设置为100kOMEGA / 100 = 1kOMEGA。然后快速读出容量66的信号电荷。虽然阻抗Zin等于电阻Rf本身，而前置放大器没有启动，并且容量66和阻抗Zin的时间常数设置为≥1mus。然后以5-20MHz的高速读出信号。因此，信号电荷保持在输出容量。

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