-
公开(公告)号：US4627483A
公开(公告)日：1986-12-09
申请号：US569218
申请日：1984-01-09
CPC分类号： F24D19/1039 , F24D10/00
摘要： A control system for controlling a heating system having a heat pump and a source of supplemental heat. Simultaneous operation of the heat pump and supplemental heat source is monitored, and when such simultaneous operation occurs for a given portion of a heating cycle, the heat pump will shutdown until the temperature has risen by a predetermined amount or a given interval of time has elapsed. The heat pump is also shutdown if the outside ambient temperature falls below a certain level and is automatically reenabled if the outside ambient exceeds a second level.
摘要翻译： 一种用于控制具有热泵和补充热源的加热系统的控制系统。 监测热泵和补充热源的同时运行，当在加热循环的给定部分发生这种同时运行时，热泵将关闭直到温度升高预定量或经过给定的时间间隔 。 如果外界环境温度低于一定水平，热泵也会关闭，如果外界环境超过第二级，则自动重新启用。
-
公开(公告)号：US4627484A
公开(公告)日：1986-12-09
申请号：US569258
申请日：1984-01-09
CPC分类号： F24D19/1039 , F24D10/00
摘要： A control system for controlling a heating system having a heat pump and a source of supplemental heat. The control system monitors the defrost cycling of the heat pump, and when the heat pump is in its defrost cycle for more than a predetermined portion of a heating cycle, the heat pump will be shut down until the outdoor ambient temperature has risen by a predetermined amount or a given interval of time has elapsed. The heat pump is also shut down if the outside ambient temperature falls below a certain level and is automatically reenabled is the outside ambient exceeds a second level. The system results in more efficient operation of the heat pump/supplemental heat system by disabling the heat pump when weather conditions do not favor efficient heat pump operation.
摘要翻译： 一种用于控制具有热泵和补充热源的加热系统的控制系统。 控制系统监视热泵的除霜循环，当热泵在除霜循环中超过加热循环的预定部分时，热泵将被关闭，直到室外环境温度升高预定值 数量或给定的时间间隔已经过去了。 如果外界环境温度低于某一水平，并且自动重新启用，则外部环境温度超出第二水平，热泵也将关闭。 当天气条件不利于有效的热泵运行时，该系统通过禁用热泵来实现热泵/辅助热系统的更有效的运行。
-
公开(公告)号：US4852360A
公开(公告)日：1989-08-01
申请号：US130076
申请日：1987-12-08
CPC分类号： F24D19/1039 , F25B13/00 , F25B47/025 , G05D23/1912 , F24D10/00
摘要： A control system for controlling a heating system having a heat pump and a source of supplemental heat. The indoor heat exchanger temperature is monitored, such as by a thermocouple or the like, and when the temperature falls below a given threshold level, defrost cycling of the heat pump is initiated. The control system monitors the defrost cycling of the heat pump, and when the heat pump is in its defrost cycle for more than a predetermined portion of a heating cycle, the heat pump will be shut down until the outdoor ambient temperature has risen by a predetermined amount or a given interval of time has elapsed.
摘要翻译： 一种用于控制具有热泵和补充热源的加热系统的控制系统。 例如通过热电偶等来监视室内热交换器温度，并且当温度低于给定阈值水平时，启动热泵的除霜循环。 控制系统监视热泵的除霜循环，当热泵在除霜循环中超过加热循环的预定部分时，热泵将被关闭，直到室外环境温度升高预定值 数量或给定的时间间隔已经过去了。
-
公开(公告)号：US4670782A
公开(公告)日：1987-06-02
申请号：US699961
申请日：1985-02-08
CPC分类号： H04N17/04
摘要： A television video pattern generator system comprises a keyboard for entering pulse width and timing parameters for a video scanning rate. The individual incremental pulse width and timing parameters for the horizontal and vertical synchronizing waveforms are entered into a keyboard. A pattern selector selects a particular pattern which the operator wants to display on the video screen. The entered values are stored in a memory and a central processing unit processes the entered parameters and causes horizontal and vertical generators to generate the horizontal and vertical scan signals. A sync generator receives inputs from the horizontal and vertical generators and generates the scan rate. A pattern generator receives inputs from the sync generator and a pattern selector and generates a video display pattern in accordance with the selected pattern parameters and the selected scan rate parameters. If it is desired to compute a scan rate rather than to build a custom scan rate the central processing unit will automatically calculate a scan rate based upon enter parameters so that the individual pulse width of the scan rate pulses are expressed as a percentage of total horizontal line time.
摘要翻译： 电视视频图案发生器系统包括用于输入脉冲宽度的键盘和用于视频扫描速率的定时参数。 水平和垂直同步波形的各个增量脉冲宽度和时序参数输入到键盘中。 图案选择器选择操作者想要在视频屏幕上显示的特定图案。 输入的值存储在存储器中，中央处理单元处理输入的参数，并使水平和垂直发生器产生水平和垂直扫描信号。 同步发生器接收来自水平和垂直发生器的输入并产生扫描速率。 模式生成器接收来自同步发生器和模式选择器的输入，并根据所选择的模式参数和所选择的扫描速率参数产生视频显示模式。 如果希望计算扫描速率而不是建立自定义扫描速率，则中央处理单元将基于输入参数自动计算扫描速率，使得扫描速率脉冲的单个脉冲宽度表示为总水平的百分比 行时间。
-
公开(公告)号：US4509079A
公开(公告)日：1985-04-02
申请号：US464687
申请日：1983-02-07
申请人： John H. Harshbarger
发明人： John H. Harshbarger
CPC分类号： H04N5/10
摘要： The application relates to an interlace detector for a raster beam control circuit, such as in a television or computer display. Under 1:1 interlace conditions, depending on the condition of the logic at the time that the 1:1 interlace is selected, an odd field condition may result wherein the first half of the top horizontal line and the second half of the bottom horizontal line are blanked. The interlace detector detects this situation by detecting coincidence between a horizontal blanking pulse and the vertical reset pulse, and delays the transmission of the vertical reset pulse to the vertical field counter for one-half of the horizontal line scan time. This, in turn, delays vertical blanking so that a full line of information appears in the upper and lower lines of the display. In the specific embodiment disclosed, a bistable circuit triggered by horizontal blanking pulses and the undelayed vertical reset pulse produces the delayed vertical reset pulse.
摘要翻译： 本申请涉及一种用于光栅控制电路的交错检测器，例如在电视或计算机显示器中。 在1：1交错条件下，取决于选择1：1隔行扫描时的逻辑条件，可能会导致奇数场条件，其中顶部水平线的前半部分和底部水平线的后半部分 被空白。 隔行检测器通过检测水平消隐脉冲和垂直复位脉冲之间的一致性来检测这种情况，并且将垂直复位脉冲的传输延迟到水平行扫描时间的一半的垂直场计数器。 这反过来延迟了垂直消隐，使得整条信息出现在显示屏的上下两行。 在所公开的具体实施例中，由水平消隐脉冲和未延迟的垂直复位脉冲触发的双稳态电路产生延迟的垂直复位脉冲。
-
6.发明授权
公开(公告)号：US5351201A
公开(公告)日：1994-09-27
申请号：US932364
申请日：1992-08-19
摘要： A method and apparatus for evaluating the degradation of a video display device. Single parameter test signals and patterns, generated either internally or externally to the video device, are displayed on the screen. A sensing device such as a CCD camera reads the screen and transmits the data to a processing unit. Codes, imbedded in the test signal or pattern, indicate to the testing device what test is currently being run, the content of the test, and/or the specific setup situation. The code may be inherent in the pattern, the sequencing, or in addition thereto. The processing unit reads and interprets the results in accordance with the received test codes. The apparatus includes a portable, hand-held unit capable of detecting video degradation on a pass/fail basis. The unit is separate from the display under test and is capable of identifying and evaluating the test through the receipt and interpretation of the embedded codes in the test patterns, and evaluating performance on a go/no-go basis.
摘要翻译： 一种用于评估视频显示装置的劣化的方法和装置。 在视频设备内部或外部生成的单参数测试信号和模式显示在屏幕上。 诸如CCD摄像机的感测装置读取屏幕并将数据发送到处理单元。 嵌入测试信号或模式的代码向测试设备指示当前正在运行的测试，测试的内容和/或具体的设置情况。 代码可以是模式，排序或其附加内容。 处理单元根据接收到的测试代码读取和解释结果。 该装置包括便携式手持单元，其能够在通过/失败的基础上检测视频劣化。 该单元与被测显示器分离，能够通过测试模式中的嵌入代码的接收和解释来识别和评估测试，并且可以基于不间断的方式评估性能。
-
公开(公告)号：US4568975A
公开(公告)日：1986-02-04
申请号：US637150
申请日：1984-08-02
申请人： John H. Harshbarger
发明人： John H. Harshbarger
IPC分类号： H04N17/04
CPC分类号： H04N17/04
摘要： A method and apparatus for measuring the Gray Scale characteristics of a CRT display wherein a luminance meter surveys a ten percent portion of the total surface area of the screen of the CRT display screen. The luminance meter is positioned far enough from the screen so that the cone surveyed by the luminance meter will intersect the plane of the screen to cause ten percent of the screen surface area to be surveyed. A special test pattern is generated for display on the CRT screen whereby a surveyed area is provided having a sufficiently large surface area and being of uniform brightness. The test pattern also provides for an additional screen area equal in size to the surveyed area. The average picture level for the surveyed area and the non-surveyed area is maintained at fifty percent of peak picture level while the brightness of the surveyed area is varied in incremental steps through the Gray Scale. The test pattern also provides for another portion of the screen having three contiguous areas having brightness levels of whiter than black, black, and blacker than black, respectively. An additional area of the test pattern is provided which together with the black areas provide for a fifty percent average picture level. The APL for the entire screen is maintained at fifty percent. As the surveyed area brightness level is varied through the Gray Scale, the luminance meter measures the brightness whereby the Gray Scale performance of the CRT display can be measured. The black areas of the screen are monitored visually to ensure that the black level setting for the CRT display is proper throughout the test.
摘要翻译： 一种用于测量CRT显示器的灰度特性的方法和装置，其中亮度计测量CRT显示屏幕的屏幕的总表面积的百分之十。 亮度计距离屏幕足够远，使得由亮度计测量的锥体将与屏幕的平面相交，以使得屏幕表面积的百分之几被测量。 产生用于显示在CRT屏幕上的特殊测试图案，由此提供具有足够大的表面积并且具有均匀亮度的测量区域。 测试模式还提供了与被测区域大小相等的附加屏幕区域。 被调查区域和非调查区域的平均图像水平保持在峰值图像水平的百分之五十，而被测区域的亮度通过灰度级增量逐步变化。 测试图案还提供屏幕的另一部分具有分别具有黑色，黑色和黑色黑色的亮度级别的三个连续区域。 提供了测试图案的附加区域，其与黑色区域一起提供了百分之五十的平均图像水平。 整个屏幕的APL保持在百分之五十。 由于通过灰度级调查区域亮度水平变化，亮度计测量亮度，从而可以测量CRT显示器的灰度性能。 屏幕的黑色区域被视觉监控，以确保整个测试中CRT显示屏的黑电平设置正确。
-
8.发明授权Method and apparatus for testing a CRT display under beam duty cycle variation 失效用于在波束占空比变化下测试CRT显示器的方法和装置
公开(公告)号：US4536792A
公开(公告)日：1985-08-20
申请号：US554843
申请日：1983-11-23
申请人： John H. Harshbarger
发明人： John H. Harshbarger
CPC分类号： H04N17/04
摘要： A method and apparatus for testing the geometry of a cathode ray tube raster scan under beam duty cycle variation. Alternate polarities of white on black and black on white images of a test pattern are displayed on the CRT screen, and the displacement of a reference point from one polarity to the other is measured to determine quantitatively the amount of displacement. Preferably, the pattern comprises a plurality of regularly arranged and spaced graphic elements, such as a bar, dot or dot grating pattern, wherein the pattern occupies a low percentage of the screen area. By alternately switching the polarity, the electron beam of the CRT undergoes wide swings in the amount of current it draws from the high voltage supply, and the amount of image displacement and size deviation can be readily measured.
摘要翻译： 一种用于在波束占空比变化下测试阴极射线管光栅扫描的几何形状的方法和装置。 在CRT屏幕上显示测试图案上的白色黑色和白色图像上的白色的交替极性，并且测量参考点从一种极性到另一种极性的位移以定量地确定位移量。 优选地，图案包括多个规则排列和间隔的图形元素，例如条形，点状或点状光栅图案，其中图案占据屏幕区域的低百分比。 通过交替切换极性，CRT的电子束以高电压供给的电流量发生大的波动，并且可以容易地测量图像位移量和尺寸偏差。
-
公开(公告)号：US3979741A
公开(公告)日：1976-09-07
申请号：US583198
申请日：1975-06-02
申请人： John H. Harshbarger
发明人： John H. Harshbarger
IPC分类号： G01R19/145 , G01R31/02 , G08B21/00
CPC分类号： G01R19/145 , G01R31/021
摘要： A power loss alarm system in which an electric power supply is connected to a relay so that the relay is energized while the power supply is on. If the power supply fails, or if the voltage is reduced below a certain minimum amount, the relay is de-energized and an alarm signal is activated. The alarm signal is connected to second source of electric power, a battery, for example, so that power loss in the power circuit will not prevent actuation of the alarm. The system includes a selector switch having an "OFF" position, an "ON" or "RETURN" position in which the system is checked and is also operative to sound the alarm when power returns to the system, and a "LOSS" position in which the system is operative to indicate the occurrence of loss of power.
摘要翻译： 一种电力损失报警系统，其中电源连接到继电器，使得继电器在电源接通时被通电。 如果电源出现故障，或者电压降低到一定的最小值以下，继电器断电，报警信号被激活。 报警信号例如连接到第二电源，电池，使得电源电路中的功率损耗不会阻止报警器的致动。 该系统包括具有“OFF”位置，“ON”或“RETURN”位置的选择开关，其中系统被检查并且还可用于在电源返回到系统时发出报警，并且在“返回” 该系统用于指示电力损失的发生。
-
10.发明授权
公开(公告)号：US5572444A
公开(公告)日：1996-11-05
申请号：US287539
申请日：1994-08-08
摘要： A method and apparatus for evaluating the degradation of a video display device. Single parameter test signals and patterns, generated either internally or externally to the video device, are displayed on the screen. A sensing device such as a CCD camera reads the screen and transmits the data to a processing unit. Codes, imbedded in the test signal or pattern, indicate to the testing device what test is currently being run, the content of the test, and/or the specific setup situation. The code may be inherent in the pattern, the sequencing, or in addition thereto. The processing unit reads and interprets the results in accordance with the received test codes. The apparatus includes a portable, hand-held unit capable of detecting video degradation on a pass/fail basis. The unit is separate from the display under test and is capable of identifying and evaluating the test through the receipt and interpretation of the embedded codes in the test patterns, and evaluating performance on a go/no-go basis.
摘要翻译： 一种用于评估视频显示装置的劣化的方法和装置。 在视频设备内部或外部生成的单参数测试信号和模式显示在屏幕上。 诸如CCD摄像机的感测装置读取屏幕并将数据发送到处理单元。 嵌入测试信号或模式的代码向测试设备指示当前正在运行的测试，测试的内容和/或具体的设置情况。 代码可以是模式，排序或其附加内容。 处理单元根据接收到的测试代码读取和解释结果。 该装置包括便携式手持单元，其能够在通过/失败的基础上检测视频劣化。 该单元与被测显示器分离，能够通过测试模式中的嵌入代码的接收和解释来识别和评估测试，并且可以基于不间断的方式评估性能。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.011 秒)
