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公开(公告)号：US3634008A
公开(公告)日：1972-01-11
申请号：US3634008D
申请日：1968-05-17
CPC分类号： H04N5/23248 , G03B17/561 , H04N5/23258 , H04N5/23261
摘要： A pickup device such as a camera or a microphone is adjustably mounted on a movable support. Signal-generating means on the support provide signals representing the movement of the support with respect to a subject of the pickup device and these signals are combined to provide a vector displacement signal. A control system mounted on the support receives the vector displacement signal and uses it to adjust the pickup device so that a predetermined relationship between the pickup device and the subject is maintained irrespective of movement of the support or the subject.
摘要翻译： 诸如相机或麦克风的拾取装置可调节地安装在可动支架上。 支撑体上的信号产生装置提供表示支撑件相对于拾取装置的被摄体移动的信号，并且这些信号被组合以提供向量位移信号。 安装在支撑件上的控制系统接收矢量位移信号，并使用它来调整拾取装置，使得拾取装置和被摄体之间的预定关系被保持而不管支架或被摄体的移动。
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2.发明授权Improvements in or relating to television camera automatic focus control system 失效电视摄像机自动聚焦控制系统的改进或相关
公开(公告)号：US3617633A
公开(公告)日：1971-11-02
申请号：US3617633D
申请日：1968-11-29
CPC分类号： H04N5/23212
摘要： A system for automatically maintaining the focus of a television camera in which the camera focus setting is modulated, preferably at half the frame or line scan frequency, and the camera video output passed through a high pass filter to a phase-sensitive detector. The output of the detector is indicative of the magnitude and sense of the departure of the camera focus setting from sharp focus, and is used to control a focus servo.
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公开(公告)号：US3615143A
公开(公告)日：1971-10-26
申请号：US3615143D
申请日：1969-04-04
发明人： BARR JOHN DENZIL , REASON RICHARD EDMUND , REEVE THOMAS CHARLES , SPRAGG ROBERT CLAUDE , STARR ARTHUR TISSO , STILLWELL PETER FREDERIC THOMA , WHITEHOUSE DAVID JOHN
CPC分类号： G01B7/282
摘要： IN TESTING THE CIRCUMFERENTIAL SURFACE OF AN OBJECT RELATIVE ROTATION IS EFFECTED AT AN ANGULAR VELOCITY BETWEEN THE OBJECT AND A DETECTOR DEVICE WHICH PROVIDES SIGNALS REPRESENTATIVE OF THE SURFACE CHARACTERISTICS OF THE OBJECT AROUND A CLOSED CIRCUMFERENTIAL PATH. THE SIGNALS ARE PASSED THROUGH A FILTER DEVICE WHICH PASSES THE CONSTANT COMPONENT AND ONE OR MORE SELECTED HARMONIC COMPONENTS OF THE SIGNALS IN ACCORDANCE WITH A REFERENCE SHAPE FOR THE OBJECT. THE FILTER DEVICE ACCORDING TO THE INVENTION HAS AN EFFECTIVE IMPULSE RESPONSE SUCH THAT THE SUM OF THE ORDINATES OF THIS IMPULSE RESPONSE AT TIMES (T+R$R/W), O 3. PREFERABLY THE IMPULSE RESPONSE HAS THE FORM (1+2 COS WT) FOR O
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公开(公告)号：US3548731A
公开(公告)日：1970-12-22
申请号：US3548731D
申请日：1966-09-06
CPC分类号： H04N5/23212 , G03B3/02 , G05D3/1445 , G05D3/1472
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公开(公告)号：US3571579A
公开(公告)日：1971-03-23
申请号：US3571579D
申请日：1968-04-25
发明人： WHITEHOUSE DAVID JOHN , BARR JOHN DENZIL , REASON RICHARD EDMUND , REEVE THOMAS CHARLES , SPRAGG ROBERT CLAUDE , STARR ARTHUR TISSO , STILLWELL PETER FREDERIC THOMA
CPC分类号： G06E3/001 , G01B11/303 , G06G7/1914
摘要： This invention relates to an instrument for testing the surface profile of a workpiece for irregularities. A conventional stylus arrangement is used to derive signals representative of the irregularities of the workpiece profile relative to a convenient datum, and these signals are stored, for example on a film strip or a magnetic tape. Signals are then extracted from the store by operating on each successive value of the stored signal with a weighting function which is nominally symmetrical about an instantaneous midordinate. The resulting signal represents, for each successive part of the profile under test, the convolution of the respective part of the first signal with the said weighting function, and is arranged to represent a useful means line from which the surface irregularities indicated by the first signal may be assessed.
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公开(公告)号：US3571575A
公开(公告)日：1971-03-23
申请号：US3571575D
申请日：1967-06-28
CPC分类号： H03K21/02 , G01B9/02083
摘要： An electronic counter is provided for use in counting pulses, for example pulses representing interference fringes in laser interferometers. In order to give an output reading in a predetermined scale of measurement, for example, the metric system the pulses are counted in a first counter and pass through a gate to a second counter which gives the output reading, the gate being controlled in dependence upon the first counter so that the gate is blocked, for the duration of one input pulse, at predetermined intervals, such that the count in the second counter is modified by a predetermined ratio to give an output count in the desired scale of measurement.
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公开(公告)号：US3541941A
公开(公告)日：1970-11-24
申请号：US3541941D
申请日：1968-08-07
CPC分类号： G05D3/1409 , G02B7/08 , G03B17/14 , G03B17/42 , G03B17/565 , G05D3/14
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