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91. 发明专利

JPS51108731A 失效
公开(公告)号：JPS51108731A
公开(公告)日：1976-09-27
申请号：JP3379675
申请日：1975-03-20
申请人： SONY CORP
发明人： SAWARA HIROSHI , TANAKA YUTAKA
IPC分类号： H04N9/64

92. 发明专利

JPS51102521A KARAATEREBIJUZOKINO JIDOKIRIKAESOCHI 失效
公开(公告)号：JPS51102521A
公开(公告)日：1976-09-10
申请号：JP2849675
申请日：1975-03-07
申请人： SONY CORP
发明人： SAWARA HIROSHI , TANAKA YUTAKA
IPC分类号： H04N9/00 , H04N5/46 , H04N9/64 , H04N9/66

93. 发明专利

JPS5182558A 失效
公开(公告)号：JPS5182558A
公开(公告)日：1976-07-20
申请号：JP737475
申请日：1975-01-16
申请人： SONY CORP
发明人： SAWARA HIROSHI , TANAKA YUTAKA , ISOBE TOSHINOBU
IPC分类号： H03D3/08 , H03D3/10 , H04N9/64 , H04N11/18

94. 发明专利

JPS5162659A Chikusekikan 失效
公开(公告)号：JPS5162659A
公开(公告)日：1976-05-31
申请号：JP13724074
申请日：1974-11-28
申请人： Sony Corp
发明人： SATO HIROKI , SAWARA HIROSHI
IPC分类号： H01J31/58 , G11B9/00 , H01J29/48 , H01J29/52

95. 发明专利

JPH07111626A CATHODE-RAY TUBE DISPLAY DEVICE 失效
公开(公告)号：JPH07111626A
公开(公告)日：1995-04-25
申请号：JP25566993
申请日：1993-10-13
申请人： SONY CORP
发明人： SAWARA HIROSHI , SASAKI TAKESHI
IPC分类号： H04N5/57 , G09G1/00 , H01J29/48 , H01J29/96
摘要： PURPOSE:To obtain a cathode-ray tube display device which is capable of preventing excessive beam current from flowing without causing the complication of a circuit and an increase in cost. CONSTITUTION:The DC potential of the carthode electrode K of a cathode-ray tube 1 is fixed. A video signal is supplied to the first grid electrode G1 of the cathode-ray tube 1 from a video amplifier 4 through a capacitor 9. By adjusting the DC potential of the first grid electrode G1 by a variable resistor 27, a brightness adjustment is performed. The needle of the variable resistor 27 is connected with the connection point of the variable resistor 27 and a variable resistor 28 for cut-off adjustment via a high resistance 32 with 2 MOMEGA or more, for instance. Even if prescribed DC potential is not impressed on the first grid electrode G1 by the needle of the variable resistor 27 due to the failure, etc., of the variable resistor 27, excessive beam current does not flow and the adverse influence on the cathode-ray tube 1 and a circuit is avoided because ground potential is impressed on the first grid electrode G1 via the variable resistor 28 and a resistor 32.

96. 发明专利

JPH06268881A HORIZONTAL DEFLECTING CIRCUIT 失效
公开(公告)号：JPH06268881A
公开(公告)日：1994-09-22
申请号：JP5251693
申请日：1993-03-12
申请人： SONY CORP
发明人： SAWARA HIROSHI
IPC分类号： H04N3/16
摘要： PURPOSE:To secure the reliability of a circuit and the stability of pictures by preventing the malfunction of output circuits without giving a large time constant to drive circuits of a horizontal output circuit and a high voltage output circuit. CONSTITUTION:The output of a horizontal oscillation circuit 11 is supplied to the base of a drive transistor TR 31. The collector of the TR 31 is connected to a power terminal 12 through a load resistor 32 and filters 13 and 14 which eliminate a pulse noise. The connection point between the collector of the TR 31 and the resistor 32 is connected to the gate of an output TR 51. The drain of the TR 51 is connected to the power terminal 12 through a primary winding 21a of a flyback transformer 21. A resonance capacitor 38 and a horizontal deflecting coil 40 are provided. The supply voltage of the drive circuit does not rise earlier than that of the oscillation circuit 11, and the malfunction that an excessive current flows to the horizontal output circuit can be prevented. It is unnecessary to give a large time constant to the drive circuit for the purpose of preventing the malfunction, and the stability of pictures is not degraded.

97. 发明专利

JPH06253167A PICTURE DISTORTION CORRECTION DEVICE FOR FLAT TYPE CATHODE RAY TUBE 失效
公开(公告)号：JPH06253167A
公开(公告)日：1994-09-09
申请号：JP3680493
申请日：1993-02-25
申请人： SONY CORP
发明人： SAWARA HIROSHI
IPC分类号： H04N3/23
摘要： PURPOSE:To correct inverse trapezoidal shape distortion in an excellent way without causing remaining correction in the flat type cathode ray tube. CONSTITUTION:A sawtooth wave signal of a vertical period is applied from an output circuit 100 to a base of a transistor(TR) of a modulation circuit 300, a sawtooth wave signal generated at a latter half of the vertical period is applied from a generating circuit 200 to the emitter of the TR, and a synthesis signal of the two sawtooth wave signals is obtained at its collector. The latter half of the sawtooth wave signal of a vertical period is emphasized in the synthesis signal and a joint of the two sawtooth wave signals is subjected to smoothing processing by an integration circuit 311. An integration circuit 301 for AC feedback acts as enhancing the operating efficiency of the integration circuit 311. A voltage modulated by the synthesis signal for a DC voltage +B2 is obtained at an emitter of a TR 307 and the voltage is used for the power supply for a deflection circuit 7. A horizontal deflection current is more emphasized at a lower part of the screen in the deflection circuit 7 and inverse trapezoidal picture distortion is corrected without causing remaining correction at the lower part of the screen.

98. 发明专利

JPH03201892A VIDEO TELEPHONE SET 失效
公开(公告)号：JPH03201892A
公开(公告)日：1991-09-03
申请号：JP34427189
申请日：1989-12-28
申请人： TOKYO ELECTRIC POWER CO , SONY CORP
发明人： HATTORI SEIJI , KIMURA HIROSHIGE , SHIMIZU HIDEO , IKEDA YASUNARI , SAWARA HIROSHI
IPC分类号： H04N5/225 , H04M11/00 , H04N5/278 , H04N7/14
摘要： PURPOSE:To prevent deterioration in picture quality due to blooming by detecting a current flowing to a flyback transformer of a monitor and controlling a level of a video signal outputted from a storage element based on the result of detection. CONSTITUTION:A current flowing to a flyback transformer 21 of a monitor 20 is detected and when the detected current is less, a level of a video signal outputted from a storage element 9 is decreased and when the detected current is much conversely, the level of the video signal outputted from the storage element 9 is increased. Thus, when the background is bright, the superimposing part is made bright to make the pattern to be observed easily and when the background is dark, the superimposed part is darker. Moreover, the level of the video signal outputted from the storage element 9 in the blackboard mode in which an average brightness level is low by decreasing the level of the video signal outputted from the storage element 9 in the superimposed mode and the blackboard mode.

99. 发明专利

JPH02193489A VIDEO COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH02193489A
公开(公告)日：1990-07-31
申请号：JP1238889
申请日：1989-01-20
申请人： TOKYO ELECTRIC POWER CO , SONY CORP , MEIDENSHA ELECTRIC MFG CO LTD , ASCII CORP
发明人： HATTORI SEIJI , KIMURA HIROSHIGE , SHIMIZU HIDEO , SUZUKI TOSHIO , SAWARA HIROSHI , MIYAJIMA NAOTO , FUJII HISAO
IPC分类号： H04N7/15 , H04N7/14
摘要： PURPOSE:To input and transmit a line picture, etc., on pictures/writings brought to image pickup and to improve the use convenience by transmitting data of an inputted line picture together with a video signal and a sound signal. CONSTITUTION:A tablet input display device 15 displays a line picture by using a liquid crystal display device 46, and also, constitutes a tablet 39 of an electrode stuck to the back of the liquid crystal display device concerned 46. Also, in a telewriting mode, the display device 15 displays an input menu, etc., of a straight line, a circular, a handwritten input, etc., on a display screen of the liquid crystal display device 46, and this mode is switched to a desired input mode by pressing the menu concerned with a stylus 40 on the liquid crystal display screen concerned. That is, in the display device 15, the tablet 39 is divided into minute areas of 640 and 480 in the horizontal direction and the vertical direction, respectively, and by an (xy) coordinate data detecting circuit 39A, each minute area of the tablet 39 is scanned in a prescribed period. In such a way, position information of the minute area pressed with the stylus can be detected by (xy) coordinate data DXY based on a prescribed origin O on the tablet 39 as reference.

100. 发明专利

JPH02193484A VIDEO TELEPHONE SYSTEM 失效
公开(公告)号：JPH02193484A
公开(公告)日：1990-07-31
申请号：JP1254289
申请日：1989-01-20
申请人： TOKYO ELECTRIC POWER CO , SONY CORP , MEIDENSHA ELECTRIC MFG CO LTD , ASCII CORP
发明人： HATTORI SEIJI , KIMURA HIROSHIGE , SHIMIZU HIDEO , SAWARA HIROSHI , OGINO TAIJI , MIYAJIMA NAOTO , FUJII HISAO
IPC分类号： H04N7/14
摘要： PURPOSE:To simplify the constitution, to reduce the cost and the space factor by attaching a person camera, and also, a picture/writing camera being a separate body from the camera to a monitor picture receiver. CONSTITUTION:A person camera 2 is positioned in the upper part of a color CRT 1B, and also, turned to the front of a monitor picture receiver 1, namely, to the screen side of the color CRT 1B. A picture/writing camera 3 is attached so at to be freely turnable to a side face 1b of the monitor picture receiver 1, namely, to a side face of a cabinet 1A through an L-shaped arm 4. In such a way, since the person camera, and also, the picture/writing camera 3 being a separate body from the camera are attached to the monitor picture receiver 1, the constitution is simplified, the cost is reduced and the space factor can be reduced in spite of a fact that the person camera 2 and the picture/writing camera 3 are provided.

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