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公开(公告)号：JPH01309582A
公开(公告)日：1989-12-13
申请号：JP14221388
申请日：1988-06-08
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
Abstract: PURPOSE:To improve an S/N by executing emphasis processing to respectively adding a preshoot waveform to the start edges and the end edges of the rising waveform part and the falling waveform part of an input video signal. CONSTITUTION:After the time base of a first high frequency emphasizing signal SP1 outputted from a first preemphasis circuit 3 is inverted in a time base inverting circuit part 5, a high frequency component is emphasized in a second preemphasis circuit 6. Therefore, a rising preshoot waveform and a falling preshoot waveform can be formed so that the waveforms can be divided for both sides of the start edge and the end edge of the rising waveform part. Consequently, the increase of the value between the maximum peak value and the minimum peak value of a high frequency emphasizing signal SP2 is suppressed by the emphasis processing by the second preemphasis circuit 6, and the enlargement of a dynamic range necessary for a processing circuit is prevented. Thus, the S/N can be improved.
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公开(公告)号：JPS61129985A
公开(公告)日：1986-06-17
申请号：JP25213984
申请日：1984-11-29
Applicant: Sony Corp
Inventor： OZAKI YOSHIO , FUKUOKA TOSHIMI
IPC: H04N5/84
Abstract: PURPOSE: To establish a black frame around the picture frame of film, by inserting pulses of the level enough to expose the specific width of frame of film at the both edges of picture cycle of the video signal which modulates the exposure beam.
CONSTITUTION: A signal from an input terminal 1 is supplied to an inserting circuit 3 of exposure level pulse through a signal reversal circuit 2 which makes a positive picture. The signal from the terminal 1 is supplied to synchronization separation circuit 4 and the separated synchronizing signal is supplied to the inserting circuit 3. Then the pulses which are enough to expose the film are inserted to the front and back of picture cycle and return wire cycle of the horizontal and vertical synchronization signal.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了在胶片的相框周围建立一个黑色框架，通过插入足够的电平来暴露电影框架的特定宽度，在调整曝光光束的视频信号的图像周期的两边。 构成：来自输入端子1的信号通过产生正图像的信号反转电路2提供给曝光电平脉冲的插入电路3。 来自端子1的信号被提供给同步分离电路4，并且分离的同步信号被提供给插入电路3.然后，足以暴露胶片的脉冲被插入到图像周期的前后，并返回线周期 的水平和垂直同步信号。
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公开(公告)号：JPS561789A
公开(公告)日：1981-01-09
申请号：JP7706579
申请日：1979-06-19
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
Abstract: PURPOSE:To obtain a motor having no torque variation by employing a rotor magnet having the sine-wave distribution of magnetic fluxes, vertically summing the outputs of two Hall elements 6 and 7 whose electrical angles are separated by 90 deg., and supplying the resultant outputs to stator coils. CONSTITUTION:Two Hall elements 6 and 7 whose electrical angles are separated by 90 deg. send out the outputs of since-wave signals by the rotation of a rotor magnet having the sine-wave distribution of magnetic fluxes. The output of said Hall element 6 is supplied to an amplifier 19, from which the output SA is supplied to one end of a stator coil 4. The output of the Hall element 7 is supplied to an amplifier 21, from which the output SB is supplied to one end of a stator coil 5. The output SA is supplied to the connecting point of the stator coils 4 and 5 via an inversion amplifier 20. Therefore, the resultant vector 29 of the outputs SA and SB is supplied to the stator coil 4, and resultant vector 30 of the inverted output SA and output SB is supplied to a stator coil 5, thereby the driving voltage separated by 90 deg. of an electrical angle can be obtained.
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公开(公告)号：JPH09129442A
公开(公告)日：1997-05-16
申请号：JP28525995
申请日：1995-11-01
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
Abstract: PROBLEM TO BE SOLVED: To provide a solenoid driving device capable of demagnetization independently of variation in solenoid magnetization. SOLUTION: In this solenoid driving device, a current in the plus direction is conducted to a solenoid 23 by means of a plus large current control circuit 30 and a small current control circuit 31 so as to attract a mobile body to a permanent magnet and a core opposing to an elastic force of a spring and to conduct a lamp corrugated current to the solenoid 23 by means of a minus lamp current control circuit 35 in order to demagnetize the permanent magnet and core once magnetized.
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公开(公告)号：JPH09126859A
公开(公告)日：1997-05-16
申请号：JP28525795
申请日：1995-11-01
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI , KIMURA MASARU
Abstract: PROBLEM TO BE SOLVED: To detect the presence/absence of ink to be detected even when the ink, etc., is dried up by providing an oscillating source, a detecting terminal, and a detecting means and detecting the presence/absence of the ink by changing the voltage outputted from the detecting means based on the electrical conductivity or capacitance of the ink. SOLUTION: The liquid level detector is provided with an oscillating source 1 which generates a prescribed voltage, a single-pole detecting terminal 7 to which the voltage generated from the source 1 is supplied, and detecting means 2-6 which detect the electrical conductivity or capacitance of a liquid 8 to be measured by means of the terminal 7 and output the voltage from the source 1 by changing the voltage. The detector is constituted to detect the presence/ absence of the liquid 8 by changing the voltage outputted from the detecting means 2-6. Therefore, the detector can detect the presence/absence of the liquid 8 based on the electrical conductivity or capacitance of the liquid 8 which is a characteristic of the liquid 8 even when the liquid 8 dries up and adheres to the terminal 7.
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Patent Agency Ranking
公开(公告)号：JPH0671936A
公开(公告)日：1994-03-15
申请号：JP22748292
申请日：1992-08-26
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
IPC: B41J2/44 , B41J2/385 , B41J2/475 , B41M5/398 , G03G15/20 , G03G15/24 , G03G15/34 , G06K15/12 , H01S5/042 , H04N1/032 , B41M5/26 , H01S3/096
Abstract: PURPOSE:To eliminate gaps between scanning lines and make print images excellent by providing a laser beam output means for fixing dry toner of a printing paper by melting it with heat and a means for removing unmelted residual toner. CONSTITUTION:A printing paper 5 is fed in the direction of an arrow y with respect to a drum 8 by a feed roller 6, led so as to be wound on the drum 8, and discharged in the direction of an arrow z. An electrification section 10 is provided in the neighborhood of the paper feed opening of the drum 8 and a toner attracting section 11 is provided at a position apart from the electrification section 10 by a predetermined distance. In the toner attracting section 11, for example, dry toner is attracted to the printing paper and the attracted toner is fixed on the printing paper by laser beam ejected from a laser diode. A cleaning section 9 having an electrode is provided in the neighborhood of the discharge opening of the drum 8 for electrifying the printing paper. Unnecessary toner which is not fixed by the laser beam is separated from the printing paper.
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公开(公告)号：JPH0662193A
公开(公告)日：1994-03-04
申请号：JP21614792
申请日：1992-08-13
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
Abstract: PURPOSE:To provide a good print picture by preventing the influence on the infinitesimal level section of light output by a drift in a component circuit by detecting the lowest level of duty ratio of a pulse width modulation signal and applying the feedback so as to let the non-signal level of a video signal be a target value, improving a good reproducibility of density gradation in a print picture, and suppressing the density dispersion between print pictures. CONSTITUTION:The device is provided with a laser diode 6, adding circuit 2 performing the DC offset adjustment processing for an input video signal, low-pass filter 7, amplifier circuit 8, sample-and-hold circuit 9, triangular wave generation circuit 3 generation a triangular wave, comparator 4 outputting the pulse width modulation signal by comparing these triangular wave signals with the output signal from the circuit 2, and current driver 5 driving the laser diode 6 based on these pulse width modulation signals. The pulse width modulation signal from the comparator 4 is fed back to each component element of low-pass filter 7.
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公开(公告)号：JPH05299736A
公开(公告)日：1993-11-12
申请号：JP10693192
申请日：1992-04-24
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
Abstract: PURPOSE:To achieve the high gradation of the title laser diode by means of a simple constitution which does not use a pulse-width modulation circuit. CONSTITUTION:A laser diode 16 is driven in the following manner: a current signal which is output from a photodiode 17 and which corresponds to the quantity of light of the photodiode 16 is used as a feedback current signal if and compared with an input current signal i1 so that the feedback current signal if becomes equal to the input current signal i1. As a result, it is not required to use a pulse-width modulation circuit, and circuit constitution is simplified. In addition, since an input image signal (e) corresponding to the input current signal i1 is a continuous signal (an analog signal), the high gradation (e.g. corresponding to 10 bits) of the laser diode can be achieved.
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公开(公告)号：JPS63267065A
公开(公告)日：1988-11-04
申请号：JP10125687
申请日：1987-04-24
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
IPC: H04N5/202
Abstract: PURPOSE:To easily obtain optional waveforms by setting the intervals of charging ranges of respective potentiometers to visually even. CONSTITUTION:A ROM7 generates sawtooth waves whose periods sequentially change in accordance with the ratio of lightness differences whose intervals become visually even, and with the signals from plural potention meters 2, a multiplier 9 modulated the amplitudes of respective sawtooths of the sawtooth waves. A sample hold circuit 12 and an adder 10 sequentially sample hold the modulated sawtooth waves in the tip parts, thereby they are accumulated. The objective waveforms are obtained in a RAM 14. Consequently, the correction waveforms are adjusted at every range of visually even interval. Thus, adjustment can satisfactorily and easily be executed, and the management of data can easily be executed.
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公开(公告)号：JPS61233943A
公开(公告)日：1986-10-18
申请号：JP7506485
申请日：1985-04-09
Applicant: SONY CORP
Inventor： FUKUOKA TOSHIMI
IPC: H01J37/06 , H01J37/09 , H01J37/14 , H01L21/027 , H01L21/30
Abstract: PURPOSE:To increase the diameter of an aperture and minimize the influence of an external magnetic field or a similar factor by using a cylindrical anode and installing the aperture inside a focusing coil. CONSTITUTION:A cylindrical anode 3 is installed surrounding an electron beam which is discharged from a filament 1 through a grid 2. It is positioned parallel to the axis of the beam. A focusing coil 5 is installed at the lower end of the anode 3. An aperture 4 having the same electric potential as the anode 3 is installed inside the focusing coil 5. By thus using the anode 3 having a cylindrical shape and installing the aperture 4 inside the focusing coil 5, it is possible to increase the diameter of the aperture 4 and to minimize the influence of an external magnetic field.
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