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1.发明授权
公开(公告)号：US4864405A
公开(公告)日：1989-09-05
申请号：US9663
申请日：1987-02-02
申请人： John P. Chambers
发明人： John P. Chambers
CPC分类号： H04N7/0122 , G01R13/20 , G01R13/22 , G01R13/24 , H04N7/015
摘要： A cathode ray tube video display device is adapted to display wide aspect ratio signals by reducing the vertical scanning amplitude of the scanning raster. The scan is collapsed in the vertical direction without reducing the number of lines used to display the active picture, leaving unscanned bands at the top and bottom of the display. The device can change between a normal raster scanning mode and such a collapsed wide screen mode automatically in response to an indicator in the received video signal.
摘要翻译： 阴极射线管视频显示装置适于通过减小扫描光栅的垂直扫描振幅来显示宽的宽高比信号。 扫描在垂直方向上折叠，而不减少用于显示活动图像的行数，将未扫描的波段保留在显示屏的顶部和底部。 响应于所接收的视频信号中的指示符，设备可以在正常的光栅扫描模式和这种折叠的宽屏幕模式之间自动地改变。
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公开(公告)号：US4529916A
公开(公告)日：1985-07-16
申请号：US347471
申请日：1982-02-10
申请人： Atsushi Nozawa
发明人： Atsushi Nozawa
摘要： In an alternating sweeping system for use in an oscilloscope of the type wherein a sweeping signal and a delayed sweeping signal are alternately supplied to a horizontal deflection circuit of the oscilloscope, and wherein a unblanking signal and a delayed unblanking signal are alternately supplied to a brightness modulation circuit, widths of the delayed sweeping signal and the delayed unblanking signal made to be less than one half of width of the sweeping signal and the unblanking signal so that the delayed blanking signal and the delayed unblanking signal are used a plurality of times during an interval in which the sweeping signal and the unblanking signal are used once.
摘要翻译： 在用于示波器的交替扫描系统中，其中扫描信号和延迟扫描信号被交替地提供给示波器的水平偏转电路，并且其中将非曝光信号和延迟的非曝光信号交替地提供给亮度 调制电路，延迟清扫信号的宽度和延迟的非空白信号的宽度小于扫描信号和非曝光信号的宽度的一半，使得延迟的消隐信号和延迟的消隐信号在一段时间内被使用多次 扫描信号和非曝光信号使用一次的间隔。
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公开(公告)号：US4224556A
公开(公告)日：1980-09-23
申请号：US11643
申请日：1979-02-12
申请人： Yasuhiko Muto
发明人： Yasuhiko Muto
摘要： A drive circuit for an electrostatic deflection type cathode-ray tube where the drive circuit includes an amplifier and a load. At least one diode is connected between the output of the amplifier and the load and at least one push-pull emitter follower circuit is provided, the bases of whose transistors are connected to opposite terminals of the diode, the cathode-ray tube being deflected by the output of the push-pull emitter follower circuit.
摘要翻译： 一种用于静电偏转型阴极射线管的驱动电路，其中驱动电路包括放大器和负载。 至少有一个二极管连接在放大器的输出端和负载之间，并提供至少一个推挽射极跟随器电路，其晶体管的基极连接到二极管的相对端子，阴极射线管被偏转 推挽射极跟随器电路的输出。
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公开(公告)号：US4097798A
公开(公告)日：1978-06-27
申请号：US772879
申请日：1977-02-28
摘要： A system for indicating the sweep rate of an oscilloscope time base. A counter is enabled by a sweep gate signal to permit clock pulses having a predetermined repetition rate to be counted during the time a sweep-driving ramp waveform is generated. The count output, which is proportional to the length of a time-base sweep, is decoded to generate specific control signals indicative of the sweep rate thereof. The control signals may then be used by a utilization means to provide a visual readout of the time-base sweep rate or to provide auto ranging for a digital voltmeter scaled in time units for time interval measurements.
摘要翻译： 用于指示示波器时基扫描速率的系统。 通过扫描栅极信号使计数器能够被允许在产生扫描驱动斜坡波形的时间期间对具有预定重复频率的时钟脉冲进行计数。 与时基扫描的长度成比例的计数输出被解码以产生指示其扫描速率的特定控制信号。 控制信号然后可以由利用装置使用以提供时基扫描速率的可视读出，或为按时间单位测量的数字电压表提供自动测距。
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公开(公告)号：US3701993A
公开(公告)日：1972-10-31
申请号：US3701993D
申请日：1971-06-28
申请人： TEKTRONIX INC
摘要： A ramp generator for a chart recorder or the like and a chart recorder for permanently recording information on recording media by sampling means for sampling signals is described. The ramp generator generates a ramp signal whose magnitude gradually changes in response to movement of the recording media rather than time. The ramp signal thus derived is applied to a strobe comparator via a slow ramp control circuit as the reference level thereof for producing a strobe pulse to drive the sampling gate and thereby sampling a signal applied thereto.
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公开(公告)号：US3559082A
公开(公告)日：1971-01-26
申请号：US3559082D
申请日：1968-02-28
申请人： TEKTRONIX INC
发明人： HORN JOHN J
摘要： AN IMPROVED SWEEP CIRCUIT FOR AN OSCILLOSCOPE OR THE LIKE INCLUDES A PLURALITY OF SWEEP GENERATORS OPERATED BY A PLURALITY OF SELECTABLE GATING CIRCUITS. THE GATING CIRCUITS ARE BIASED SUCH THAT EACH GATING CIRCUIT, EXCEPT A SELECTED GATING CIRCUIT, CLAMPS A RESPECTIVE SWEEP GENERATOR IN A NONOPERATIVE CONDITION. A COMMON INPUT TRIGGER RECEIVING CIRCUIT NOT ONLY RECEIVES INPUT TRIGGERING SIGNALS, BUT ALSO FORMS A MULTIVIBRATOR WITH A SELECTED GATING CIRCUT. THIS MULTIVIBRATOR IS OPERATIVE FOR CAUSING THE SELECTED GATING CIRCUIT TO CLAMP ITS ASSICATED SWEEP GENERATOR IN A NONOPERATIVE CONDITION ONLY FOR THE DURATION OF AN OPERATING PERIOD OF THE MULTIVIBRATOR, CORRESPONDING TO THE HOLDOFF PERIOD DESIRED FOR THE SWEEP GENERATOR. IN THE MULTIVIBRATOR, THE SELECTED GATING CIRCUIT INCLUDES THE TIMING MEANS FOR DETERMINING A HOLDOFF TIMING PERIOD APPROPRIATE FOR THE ASSOCIATED SWEEP GENERATOR. AT THE CONCLUSION OF THE MULTIVIBRATOR''S OPERATING PERIOD, THE SELECTED GATING CIRCUIT CAUSES THE ASSOCIATED SWEEP GENERATOR TO INITIATE A SWEEP WAVEFORM. SELECTION OF A DESIRED SWEEP WAVEFORM AS WELL AS THE SELECTION OF AN APPROPRIATE HOLDOFF PERIOD MAY THUS BE ACCOMPLISHED BY MEANS OF SELECTING A PROPER GATING CIRCUIT.
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7.发明授权Circuit system for enlarging a selected part of the image on the screen of a cathode ray tube 失效用于放大阴极射线管屏幕上图像的选定部分的电路系统
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公开(公告)号：US3439220A
公开(公告)日：1969-04-15
申请号：US3439220D
申请日：1967-11-20
发明人： KATAGIRI HIROSHI , KONNO SUYOSHI
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9.发明授权Apparatus for generating crt deflection signals for describing a circular pattern 失效用于产生用于描述圆形图案的crt偏转信号的装置
公开(公告)号：US3411030A
公开(公告)日：1968-11-12
申请号：US61062667
申请日：1967-01-20
申请人： BUNKER RAMO
IPC分类号： G01R13/24
CPC分类号： G01R13/24
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公开(公告)号：US2604590A
公开(公告)日：1952-07-22
申请号：US62260845
申请日：1945-10-16
申请人： WILSON VOLNEY C
发明人： WILSON VOLNEY C
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