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1. 发明专利

JP2001034219A PICTURE DISPLAY DEVICE 失效
公开(公告)号：JP2001034219A
公开(公告)日：2001-02-09
申请号：JP20309499
申请日：1999-07-16
申请人： MATSUSHITA ELECTRONICS CORP
发明人： OSUGI MICHIO
IPC分类号： H04N5/68 , G09G1/04 , G09G1/20 , H04N3/28
摘要： PROBLEM TO BE SOLVED: To provide a picture display device which displays signals having different number of vertical scanning lines such as NTSC, PAL and personal computer signals without increasing the cost. SOLUTION: The device is provided with a computing circuit as shown in the attached figure as a vertical deflection circuit. The circuit is provided with a memory 31 which only has two data for gain and offset components as information for the deflection in a vertical direction for every electron beam emitting source, reads compensation coefficients from a multiplying memory 37 in accordance with the signals to be displayed, compensates the offset and gain components and generates deflection position data for a necessary portion that is scanned by each electron beam.

2. 发明专利

JP2543064B2 失效
公开(公告)号：JP2543064B2
公开(公告)日：1996-10-16
申请号：JP2771787
申请日：1987-02-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDE TAKUYA , KAWABATA YOHEI
IPC分类号： H04N5/68 , H01J31/12 , H04N3/28 , H04N9/22

3. 发明专利

JPH04214236A OPTICAL SCANNING DEVICE USING A PLURALITY OF SCANNING SPOTS 失效
公开(公告)号：JPH04214236A
公开(公告)日：1992-08-05
申请号：JP3513791
申请日：1991-02-06
申请人： PHILIPS NV
发明人： UIREMU HERARUDO OPUHEI , YOSEFU PETORUSU HENRIKASU BENS
IPC分类号： G11B7/003 , G11B7/09 , G11B7/095 , G11B7/14 , H04N3/28 , H04N5/85
摘要： PURPOSE: To perform the control of a wide range by obtaining the inclination signal and an angular error signal from plural tracking error signals and focusing error signals while scanning plural information tracks with plural scanning spots. CONSTITUTION: Outgoing light beams b1 ∼b4 from a composite radiant source 10 pass through a collimating lens 20, a beam splitting element 22 and a lens system 21 and plural light beams are converged at scanning spots 131 ∼161 on tracks 3∼6 on the information surface of an optical recording carrier 1. The reflected light beams pass through a lens system 21, an element 22, and lens system 23, 24 to form spots 32 ∼162 on individual detecting element 321 ∼324 of a four quadrant detector 30. Tracking error signals and/or focusing error signals are obtained from outputs of these elements and the inclination signal and the angular error signal are obtained from these signals.

4. 发明专利

JPH0316389A DRIVING METHOD FOR PICTURE DISPLAY ELEMENT 失效
公开(公告)号：JPH0316389A
公开(公告)日：1991-01-24
申请号：JP7040190
申请日：1990-03-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIGUCHI JUNPEI , NONOMURA KINZO , MURAI RYUICHI , HAMADA KIYOSHI , KITAO SATOSHI , TAKAHASHI MASAYUKI
IPC分类号： H01J31/12 , G09G1/04 , G09G1/20 , H04N3/28 , H04N5/68
摘要： PURPOSE:To improve picture quality uniformity by controlling variably at least one of an application start time of a drive signal applied to an electron beam quantity control means and an application end time with respect to a drive signal of the electron beam deflection means. CONSTITUTION:A control data corresponding to each electron beam is read sequentially from a memory 60 by a trigger signal (d) having M sets of pulses synchronized with horizontal synchronizing signals H, D during 1H period just before the 1H period desired for picture display, each counter starts counting a system reference clock with a signal (z) synchronized with horizontal drive pulses R, G, B, generates a carry pulse when the preset data is finished for counting, the pulse is fed to video signal memories 26-1-26-M to read R, G, B video digital data. Then the readout video data is fed to a pulse width modulation circuit 62, where the data is converted into an analog with a pulse width corresponding to the data value and the result is fed to an electron beam modulation electrode as R, G, B serial signal (w) to vary the application time of the modulation signal with the control data. Thus, the picture quality is improved.

5. 发明专利

JPS63164763A DEFLECTOR 失效
公开(公告)号：JPS63164763A
公开(公告)日：1988-07-08
申请号：JP31225486
申请日：1986-12-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TSURUKI TAKAYUKI , KATAOKA TERUO
IPC分类号： H04N3/16 , H04N3/223 , H04N3/28
摘要： PURPOSE:To contrive the stabilization of the deflection amplitude by detecting at which rate of the horizontal period a time scanned between two points on a screen for an electron beam shares and applying negative feedback so that the detected rate is in coincidence with a criterion. CONSTITUTION:At which position on the screen an electron beam is scanned on the screen is detected by a position detector 104, which outputs a pulse train. A counter 106 counts the number of reference clocks for a prescribed period of the pulse train and if the deflection amplitude on the screen is fluctuated, the count number is also fluctuated. The variance of the deflection amplitude is detected by an amplitude controller 108 and a waveform generator 101 or an amplifier 102 is controlled by using the generated amplitude control signal to control the amplitude of the deflection waveform outputted to the deflection electrode. Thus, the deflection amplitude on the screen is made stable.

6. 发明专利

JPS6222315B2 失效
公开(公告)号：JPS6222315B2
公开(公告)日：1987-05-18
申请号：JP13616777
申请日：1977-11-11
申请人： RCA CORP
发明人： TOMASU ROIDO KUREDORU
IPC分类号： H04N5/68 , H01J29/46 , H01J31/12 , H04N3/28 , H04N9/16 , H04N9/18 , H04N9/20

7. 发明专利

JPS6278593A CONTROLLER FOR DIGITAL MULTIBEAM CRT 失效
公开(公告)号：JPS6278593A
公开(公告)日：1987-04-10
申请号：JP15716286
申请日：1986-07-03
申请人： AZUREI INC
发明人： ROBAATO SHIN SHIYUN ROO , ROI EMAASON MAAFUII , ROBAATO GOODON KUUITSUKU JIYUN
IPC分类号： H04N9/28 , G09G1/20 , H04L12/56 , H04N3/23 , H04N3/26 , H04N3/28

8. 发明专利

JPS6158071B2 失效
公开(公告)号：JPS6158071B2
公开(公告)日：1986-12-10
申请号：JP7124280
申请日：1980-05-27
申请人： HAMAMATSU PHOTONICS KK
发明人： NISHIDA RYOZO , HARA KATSUO , TAKAHASHI HIDEO , TAKEMURA MITSUTAKA
IPC分类号： H04N3/28

9. 发明专利

JPS60191579A Television receiver 失效
标题翻译：电视接收机
公开(公告)号：JPS60191579A
公开(公告)日：1985-09-30
申请号：JP4767084
申请日：1984-03-13
申请人： Sony Corp
发明人： TOMITA HIDEO , MATSUZAKI ATSUSHI
IPC分类号： H04N5/74 , H04N3/28 , H04N9/31
摘要： PURPOSE: To prevent deterioration in the resolution due to misconvergence by adopting substantially one beam at a small signal region of a video signal in the two-beam system.
CONSTITUTION: Cathode currents I
k1 , I
k2 are applied to red/green/blue signals R, G, B via nonlinear circuits 4
1 , 4
2 respectively in picture tubes IR, IG and IB and they are changed symmetrically respectively as logarithmically and exponentially. Thus, the cathode current I
k2 hardly flows at the small signal region and the beam is one substantially. The cathode currents I
k1 , I
k2 flow symmetrically at a large signal region and symmetrical two-beam system is attained.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：通过在双光束系统中的视频信号的小信号区域采用基本上一个光束来防止由于会聚失真导致的分辨率的劣化。构成：阴极电流Ik1，Ik2分别通过图像管IR，IG和IB中的非线性电路41,42施加到红/绿/蓝信号R，G，B，并且它们分别对称地和指数地对称地改变。因此，阴极电流Ik2几乎不在小信号区域流动，光束基本上是一个。阴极电流Ik1，Ik2对称地在大的信号区域流动并获得对称的双光束系统。

10. 发明专利

JPS57141686A CATHODE RAY TUBE APPARATUS 失效
公开(公告)号：JPS57141686A
公开(公告)日：1982-09-02
申请号：JP2814081
申请日：1981-02-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITOU SHIYUUJI , DOUKE AKIHIKO
IPC分类号： H04N3/28 , G09G1/04 , G09G1/20

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