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61. 发明专利

JPH07240854A DISPLAY DEVICE 失效
公开(公告)号：JPH07240854A
公开(公告)日：1995-09-12
申请号：JP3110694
申请日：1994-03-01
申请人： HITACHI LTD
发明人： SANO TAKESHI , NISHIMORI KOJI
IPC分类号： H04N3/28
摘要： PURPOSE:To obtain a video image with high image quality without flicker at all times by selecting a high frequency for the scanning frequency when a frequency of an input signal is low and outputting and displaying video information in matching with a high scanning frequency. CONSTITUTION:A synchronizing signal is sampled in a sampling circuit 1 and stored in a memory A2 as synchronizing signal data. The frequency of the synchronizing signal is counted by counters A6-C8 and a comparator 9 compares the frequency with a frequency A. When the frequency is lower than the frequency A, a signal to select a circuit scanning an image at horizontal and vertical frequencies at a multiple of N is outputted to each changeover switch. Furthermore, on the reception of an interlace scanning signal of 1-frame 2-field, an arithmetic circuit 11 generating an address to call a video image of the 2nd filed in succession to that of a 1st field is selected by an interlace scanning signal identification circuit 10. Furthermore, in this case, the frequency A is set to a frequency at which no flicker is generated.

62. 发明专利

JPH07181909A DOUBLE SCAN CIRCUIT 失效
公开(公告)号：JPH07181909A
公开(公告)日：1995-07-21
申请号：JP25669694
申请日：1994-10-21
申请人： SAMSUNG ELECTRONIC
发明人： SOU KOUSHIYOU
IPC分类号： H04N7/01 , G09G1/14 , H04N3/28
摘要： PURPOSE: To provide a double scan circuit which can be easily turned into a VLSI. CONSTITUTION: This double scan circuit includes first and second data converters 202 and 203 which convert (n)-bit actual line data and n-bit interpolating line data into 2n-bit data, first and second RAM 204 and 205 which store the actual line data and the interpolating line data, memory control circuit 201 which generates the write/read control signals of the first and second RAM 204 and 205, and a write address and a read address at the read speed which is 2n times as high as the write speed, and provides it to the first and second RAM 204 and 205, and generates a mixing control signal for mixing the original line data and the interpolating line data stored in the first and second RAM 204 and 205 for double scanning, and multiplexer 206 which selects the 2n-bit actual or interpolating line data read from the first and second RAM 204 and 205 in response to the mixing control signal and an actual/interpolating line control signal, and outputs the data as the n-bit double scan data.

63. 发明专利

JPH06348218A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH06348218A
公开(公告)日：1994-12-22
申请号：JP13309993
申请日：1993-06-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHINTANI NAOKI , OTAKE KEIICHI , KITAHARA TOSHIAKI
IPC分类号： G09G1/00 , H04N3/28
摘要： PURPOSE:To suppress the ringing of a pulse control signal at its leading edge part, to reduce disturbance and the heat generation of a circuit, and to prevent abnormal operation from being caused by arranging resistors in series and capacitors in parallel at the output parts of PWM circuits. CONSTITUTION:From the output parts of the pulse-width modulating circuits(PWM circuit) 37a-37n to 114 conductive plates 15a-37n of a beam current control electrode, the resistors 51a-51n, and 52a-52n are arranged in series and the capacitors 53a-53n are arranged in parallel. Then the PWM circuits 37a-37n output the pulse control signal having width corresponding to the level of a video signal to the 114 conductive plates 15a-15n of the beam current control electrode. Further, the pulse control signal is applied to the 114 conductive plates 15a-15n of the beam current control electrode having capacity components 54a-54n and an inductance component 55 through the resistors 51a-51n and 52a-52n, and capacitors 53a-53n.

64. 实用新型

JPH0557983U 失效
公开(公告)号：JPH0557983U
公开(公告)日：1993-07-30
申请号：JP11346491
申请日：1991-12-27
IPC分类号： H04N3/16 , H04N3/28 , H04N7/01

65. 发明专利

JPH0385067A TELEVISION RECEIVER 失效
公开(公告)号：JPH0385067A
公开(公告)日：1991-04-10
申请号：JP22033189
申请日：1989-08-29
申请人： CANON KK
发明人： KIMURA TAKASHI , ISHIKAWA TAKASHI
IPC分类号： H04N7/01 , H04N3/28
摘要： PURPOSE:To improve the screen brightness by dividing a video signal into a prescribed number, expanding the time axis by a required ratio and applying simultaneous horizontal scanning to plural scanning lines. CONSTITUTION:A video signal from a video output circuit 14 is split into 1/2 (n=2 or the like) in the unit of horizontal periods by a switch 18. Then the time axis of the split video signals is expanded by a multiple of n (=2 or the like) for each one horizontal period at time expansion circuits 15, 19, an output of the circuit 15 via a delay circuit 18 and the output of the circuit 18 are fed simultaneously to electron guns 17, 20 and plural (n=2) number of scanning lines are subjected to simultaneous horizontal scanning to increase the screen brightness.

66. 发明专利

JPH02137577A ADJUSTING DEVICE FOR PICTURE DISPLAY DEVICE 失效
公开(公告)号：JPH02137577A
公开(公告)日：1990-05-25
申请号：JP29267988
申请日：1988-11-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KURATA TAKATSUGU , SEKIGUCHI TOMOHIRO
IPC分类号： H04N5/68 , H04N3/16 , H04N3/28
摘要： PURPOSE:To adjust vertical deflection voltage automatically and correctly by measuring automatically relation between a beam spot position and the vertical deflection voltage to respective picture element units, and further, calculating an inverse function. CONSTITUTION:A controller 54 is fixed at the vertical deflection voltage V0 of a picture display device 50. Luminance to respective picture display units is stored in a memory 53. Next, the vertical deflection voltage is fixed at V1, and the luminance to respective picture element display units is stored in the emory 53. These operations are repeated until the vertical deflection voltage becomes V255. Next, when the output of a photodetector is expressed by graph by considering the vertical deflection voltage to be a variable to respective picture display units, it shows a maximum value when the beam spot position coincides with the position of a slit by a mask 56 with a slit adhered to a screen picture. When the inverse function of the function of the vertical deflection voltage V and the vertical position of the beam spot is determined, the vertical deflection voltage to put the beam spot at an optional position is obtained.

67. 发明专利

JPS6313396B2 失效
公开(公告)号：JPS6313396B2
公开(公告)日：1988-03-25
申请号：JP5583179
申请日：1979-05-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BABA TAKAAKI , TANAKA MASANOBU , KITANI TERUO
IPC分类号： H04N11/20 , H04N3/00 , H04N3/28 , H04N7/01

68. 发明专利

JPS6010982A DEFLECTION CORRECTING DEVICE OF TELEVISION RECEIVER 失效
公开(公告)号：JPS6010982A
公开(公告)日：1985-01-21
申请号：JP11890983
申请日：1983-06-30
申请人： SONY CORP
发明人： MATSUZAKI ATSUSHI , TOMITA HIDEO
IPC分类号： H04N5/74 , H04N3/16 , H04N3/23 , H04N3/28 , H04N9/31
摘要： PURPOSE:To attain correction of deflection independently at each region by applying an output multiplying analogically a horizontal signal and a vertical signal to a deflection correcting means via a region designating switch and a gain adjusting means. CONSTITUTION:The vertical signal SV and the horizontal signal SH are applied respectively to terminals 35V and 35H and then fed to a multiplier 36. The multiplier 36 multiplies four multiplication operations shown in equations (1)-(4), where R1, R2 are proportional constants and K1, K2 are fixed constants. The outputs S1-S4 of the multiplication are applied respectively to variable resistors 371-379 directly or via changeover switches 381, 382, 391, 392 and 393. A signal obtained from a slider of the variable resistors 371-379 is synthesized respectively via resistors 401-409 and fed to an inverting input terminal of a differential amplifier 41. Then an output of the differential amplifier 41 is fed to a horizontal conversion yoke 4, where the convergence is corrected.

69. 实用新型

JPS59140581U JPS59140581U - 失效
公开(公告)号：JPS59140581U
公开(公告)日：1984-09-19
申请号：JP3439183
申请日：1983-03-10
IPC分类号： H04N3/28 , H04N9/18 , H04N9/20 , H04N9/31

70. 发明专利

JPS59148483A Television receiver 失效
标题翻译：电视接收机
公开(公告)号：JPS59148483A
公开(公告)日：1984-08-25
申请号：JP2316883
申请日：1983-02-15
申请人： Sony Corp
发明人： OKADA TAKAFUMI , MATSUZAKI ATSUSHI
IPC分类号： H04N3/28 , H04N9/18 , H04N9/20
CPC分类号： H04N3/28
摘要： PURPOSE:To reduce picture flicker by emitting light with the scanning of the 2nd electron beam also for the scanning line of the next field. CONSTITUTION:The 1st and 2nd cathodes K1, K2 relating to the 1st and 2nd electron beams Bm1 and Bm2 are provided side by side to constitute the 2-beam system. Then, the 1st and 2nd electron beams Bm1 and Bm2 scan respectively scanning lines le and lo of even and odd number fields in an even number field as shown in a round mark in solid lines and the 1st and 2nd electron beams Bm1 and Bm2 scan respectively the scanning lines lo and le in an odd number field as shown in a round in broken lines. In such scanning control, the display period of each scanning line is, e.g., 1/60sec and no flicker is observed.
摘要翻译：目的：通过第二电子束的扫描也可以通过发射下一个场的扫描线来减少图像闪烁。构成：与第一和第二电子束Bm1和Bm2有关的第一和第二阴极K1，K2并排设置以构成双梁系统。那么，第一和第二电子束Bm1和Bm2分别扫描偶数场中偶数和场数的扫描线le和lo，如实线所示圆形标记，第一和第二电子束Bm1和Bm2分别扫描扫描线lo和le在奇数场中，如虚线所示。在这样的扫描控制中，每个扫描线的显示周期例如为1/60秒，并且没有观察到闪烁。

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