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1. 发明专利

JP2006031040A Driving method of ac-type plasma display panel 有权
标题翻译：交流型等离子显示面板的驱动方法
公开(公告)号：JP2006031040A
公开(公告)日：2006-02-02
申请号：JP2005247107
申请日：2005-08-29
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KURATA TAKATSUGU , MASUDA SHINJI , KAWACHI MAKOTO
IPC分类号： G09G3/28 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/292 , G09G3/293 , G09G3/294 , G09G3/298
摘要： PROBLEM TO BE SOLVED: To provide a panel that very much enhances the contrast, as well as considerably improves black visibility.
SOLUTION: In a driving method of an AC-type plasma display panel, tone display is conducted through constituting one field period by multiple subfields having an initializing period, a writing period and a maintaining period, and the maintaining operation of the maintaining period in at least one subfield of multiple subfields is synchronized with the initializing operation of the initializing period of a subfield following at least one subfield.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供非常大地增强对比度的面板，并且显着地改善黑色可视性。解决方案：在AC型等离子体显示面板的驱动方法中，通过具有初始化周期，写入周期和维持周期的多个子场构成一个场周期进行色调显示，并且维持维持在多个子场的至少一个子场中的周期与在至少一个子场之后的子场的初始化周期的初始化操作同步。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005084363A Plasma display device 审中-公开
标题翻译：等离子体显示设备
公开(公告)号：JP2005084363A
公开(公告)日：2005-03-31
申请号：JP2003316369
申请日：2003-09-09
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MIZUKAMI JUNICHI , KAWACHI MAKOTO
IPC分类号： G09F9/00
摘要： PROBLEM TO BE SOLVED: To improve the reliability of a plasma display device by making metal trash, dust, etc., hardly stick to connecting portions of a connector in an internal circuit portion.
SOLUTION: The plasma display device has a plasma display panel (PDP) having a plurality of discharge cells constituted by disposing a plurality of columns of display electrodes and a plurality of columns of address electrodes oppositely arranged to intersect with the display electrodes on a pair of substrates facing each other by forming a discharge space, and a driver circuit block for supplying display data to the electrodes of the PDP. The driver circuit block is equipped with a circuit board 30 which is mounted with circuit components constituting circuits, a plurality of flexible wiring boards 31 which are connected to the electrodes of the PDP, and the connector 32 which is mounted on the circuit board by soldering a terminal section 32a thereto and connects the circuit board and the flexible wiring boards. The soldered terminal section of the connector is disposed on the circuit board so as to come to the lower side of the flexible wiring boards, in the circuit board.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过使金属垃圾，灰尘等提高等离子体显示装置的可靠性，几乎不会粘附到内部电路部分中的连接器的连接部分。解决方案：等离子体显示装置具有等离子体显示面板（PDP），该等离子体显示面板具有多个放电单元，该多个放电单元通过设置多个显示电极列和多个与显示电极相交的地址电极列而形成一对基板通过形成放电空间相互面对，以及用于向PDP的电极提供显示数据的驱动电路块。驱动器电路块配备有安装有电路元件构成电路的电路板30，连接到PDP的电极的多个柔性布线板31和通过焊接安装在电路板上的连接器32 端子部32a，连接电路基板和柔性布线基板。连接器的焊接端子部分布置在电路板上，以便在电路板中到达柔性线路板的下侧。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004013168A Method for driving ac type plasma display panel 有权
公开(公告)号：JP2004013168A
公开(公告)日：2004-01-15
申请号：JP2003288756
申请日：2003-08-07
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KURATA TAKATSUGU , KAWACHI MAKOTO , ITO KOJI , WAKITANI TAKAO
IPC分类号： H04N5/66 , G09G3/20 , G09G3/288 , G09G3/291 , G09G3/292 , G09G3/294 , G09G3/296 , G09G3/298 , G09G3/28
摘要： PROBLEM TO BE SOLVED: To solve the serious problem of a plasma display panel that visibility of black display is poor in the case of panel display in a place which is not sufficiently bright.
SOLUTION: In an initialization period of at least one of a plurality of sub-fields, a voltage dropping from a voltage equal to or lower than a discharge start voltage for a maintaining electrode toward a voltage higher than the discharge start voltage is applied to a scanning electrode after voltage rising from a voltage equal to or lower than a discharge start voltage for the maintaining electrode toward a voltage higher than the discharge start voltage is applied to the scanning electrode. In the remaining initialization periods of the other sub-fields, voltage slowly changing from a voltage equal to or lower than a discharge start voltage for the maintaining electrode toward a voltage higher than the discharge start voltage is applied to the scanning electrode in a period after the end of the sub-field maintaining period to the write period.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JPH0582055A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH0582055A
公开(公告)日：1993-04-02
申请号：JP24558691
申请日：1991-09-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWABATA YOHEI , KAWACHI MAKOTO
IPC分类号： H01J29/88 , H01J31/12
摘要： PURPOSE:To accomplish a high quality image display device by keeping constant the potential at the outer surface of a front glass vessel, stabilizing the potential distribution in the inside, and preventing variation of the position of fluorescent body bombardment with an electron beam in particular near the wall surface. CONSTITUTION:The outer surface of a back plate 10 is coated with a waterproof insulating agent 30, and the water film 31 due to bedewing generated over the area from a front glass vessel 9 to the back plate 10 is prevented from being in electrical continuity to the back plate 10 at the grounding level.

5. 发明专利

JPH01318355A TELEVISION RECEIVER 失效
公开(公告)号：JPH01318355A
公开(公告)日：1989-12-22
申请号：JP15066388
申请日：1988-06-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWACHI MAKOTO
IPC分类号： H04N5/14 , H04N5/205
摘要： PURPOSE:To eliminate the blanking disturbance by switching the frequency characteristic of a video signal amplifying circuit so that its band in the horizontal scanning time is wider than that in the horizontal flyback time. CONSTITUTION:A horizontal blanking pulse applied to a blanking circuit 30 is divided by resistances 2 and 3 and passes a speed up capacitor 1 to switch a transistor TR 5. A capacitor 7 connected to the collector of the TR 6 performs the integral action together with a resistance 32 only in the horizontal flyback time of an R signal. While the TR 5 is turned on, the leading edge is made wider than the horizontal blanking time by the speed up capacitor 1 and the trailing edge is made wider than that by increasing the extent of base drive of the TR 5 to use the delay from switching-on to switching-off. Thus, higher harmonics generated in leading and trailing edge parts of blanking pulses are reduced.

6. 发明专利

JPH01243681A TELEPHONE NETWORK COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH01243681A
公开(公告)日：1989-09-28
申请号：JP7003288
申请日：1988-03-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWACHI MAKOTO , FUJIMORI TOSHIMITSU
IPC分类号： H04N7/14
摘要： PURPOSE:To image-pickup a picture desired to transmit such as a character or graphic information, etc., in a direction just as it is written, and to transmit it in the correct direction just as it is written to a cathode-ray tube of not only a transmitting side but a remote party side by switching electrically the scanning direction of a camera. CONSTITUTION:If the angle of the camera 1 is as shown by a full line in a figure, as being connected with it, a vertical switching relay 12 and a horizontal switching relay 13 are laid down by a switch driving means 14 so that the vertical and the horizontal scanning directions of the camera 1 are reversed. Accordingly, as for the pictures displayed on the cathode-ray tube 11 and the remote party side and displayed as well, 'I', 'RO', 'HA' (Japanese syllabary) which is written on scratch paper and of the correct direction reverse in all directions can be reproduced. Thus, by providing a means to switching the scanning direction of the camera in both a horizontal and a vertical directions in addition to a mechanism to change the camera angle, the character or the graphic information written on the scratch paper can be reproduced on the cathode-ray tubes of the transmitting side and the remote party side in the correct direction just as it is written on the scratch paper in addition to the picture information of mainly a sender in the past.

7. 发明专利

JPH01236789A VIDEO TELEPHONE 失效
公开(公告)号：JPH01236789A
公开(公告)日：1989-09-21
申请号：JP6242088
申请日：1988-03-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWACHI MAKOTO
IPC分类号： H04N7/14
摘要： PURPOSE:To shorten the use time of a camera and to prevent turning-off of a power source from being forgotten to extend the life of the camera by turning on/off the power source, which supplies power to the camera constituting a video telephone, in accordance with a hang-up switch of a receiver. CONSTITUTION:Power to be supplied to a camera 1 by which an image to be transmitted to the destination is obtained is supplied from a power supply circuit 9 through a power switching relay 6 and a signal processing circuit 8. The relay 6 is switched in accordance with the hang-up switch of a telephone set 7. That is, power is supplied to the camera 1 and the circuit 8 only when the receiver is hooked off. A power switch 5 is the main power switch of the telephone main body; and with respect to flow of a signal, the output signal of the camera 1 is A/D-converted by the circuit 8 and is quantized and is stored in a memory and is D/A-converted and is subjected to amplitude modulation and flows to a switching relay 10. A voice signal is connected to the relay 10 from the telephone set 7, and voice and image signals are transmitted to the destination through the relay 10 and a telephone line 11.

8. 发明专利

JPS63196950A RESET CIRCUIT FOR MICROPROCESSOR 失效
公开(公告)号：JPS63196950A
公开(公告)日：1988-08-15
申请号：JP2886087
申请日：1987-02-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMAI KIYOSHI , KAWACHI MAKOTO , KATABE YUTAKA , INOUE MAKOTO
IPC分类号： G06F11/14 , G06F3/153
摘要： PURPOSE:To restore a microprocessor to normal operation by detecting the malfunction to cause the initializing operation by a reset synthesizing circuit if a vertical address is not changed three horizontal periods or more. CONSTITUTION:The waveform of a horizontal synchronizing pulse input terminal 1, the a/8 waveform of a frequency divider 29, and input waveforms of FFs 20, 21, and 22 are denoted as (a), (b), (c), (d), and (e) respectively. If the malfunction occurs in the fifth period of the waveform (a), the waveform (a) is in a low level in following periods, and waveforms (c), (d), and (e) go to the low level at the time of the seventh period. Therefore, an output (f) of an AND gate 27 goes to a high level through inverters 23-25 and an output (g) of an OR gate 28, namely, the output of a malfunction detecting circuit 32 goes to the high level. As the result, an output (h) of a NAND gate 30 goes to the low level in the tenth period of the waveform (a), and a supply voltage rise detecting signal terminal 11 is in the normal high level, and an output (i) of an AND gate 31, namely, an output (i) of a reset synthesizing circuit 33 is in the low level only in the tenth period of the waveform (a). Consequently, each circuit is initialized and is restored to the normal operation.

9. 发明专利

JPS63179663A VERTICAL DEFLECTION CIRCUIT 失效
公开(公告)号：JPS63179663A
公开(公告)日：1988-07-23
申请号：JP1062787
申请日：1987-01-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMAI KIYOSHI , KAWACHI MAKOTO
IPC分类号： H04N3/16
摘要： PURPOSE:To prevent the effect of a ripple of a PWM signal and external noise by providing a capacitor integrating the PWM signal for vertical output drive to which the collector of a transistor (TR) is connected via a resistor. CONSTITUTION:In integrating the waveform of a pulse terminal 19 of a vertical output circuit using a pumpup circuit by a resistor 20 and a capacitor 21, the result is differentiated by a capacitor 22 and a resistor 23, a positive polarity output being the result of differentiation is fed to the base of an NPN TR 25 of common emitter and its collector is connected to a capacitor 8 integrating the PWM (pulse width modulation) signal to drive the vertical output via the resistor 26. The electric charge in the capacitor 8 during the vertical blanking period is drawn by not only the TR 10 connected to the terminal 9 and but also the TR 25 connected to the terminal 19. Thus, the capacitance of the capacitor 8 is selected sufficiently large and the disturbance of the vertical scanning due to ripple of the PWM signal or external noise is avoided.

10. 发明专利

JPS61192196A COLOR TRANSIENT CORRECTING CIRCUIT 失效
公开(公告)号：JPS61192196A
公开(公告)日：1986-08-26
申请号：JP3203485
申请日：1985-02-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIYABE KAZUHIRO , KAWACHI MAKOTO , SAKASHITA HIROHIKO
IPC分类号： H04N9/68
摘要： PURPOSE:To reduce an evil which generates in correcting a color transient by using mainly a pulse-shaped signal obtained from a red color difference components. CONSTITUTION:In a comparator 3, pulse-shaped wave shape in which the red color difference components are differenciated and full-wave rectified pulse-shaped wave is given to one input terminal, and slightly higher voltage than minimum electric potential of the pulse-shaped wave shape is given to the other input terminal as a reference voltage. When the electric potential of the pulse-shaped wave shape is higher than the reference voltage, the output of the comparator is low level and a switch 4 turns off. On the contrary, when the electric potential of the pulse-shaped wave shape is lower than the reference voltage, the output of the comparator is high level and a switch 4 turns on, and a pulse-shaped wave shape in which blue color difference components are differenciated and full-wave rectified is added. For this reason, color transient correction is executed mainly by the pulse which generates in a transient period of the red color difference component. Only in case the amplitude change of the red color difference components is small and an amplitude change of the blue color difference components is large, the color transient correction is executed by the pulse generating in a transient period of the color difference components in which the amplitude change is large.

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