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公开(公告)号：US3698611A
公开(公告)日：1972-10-17
申请号：US3698611D
申请日：1970-11-04
Applicant: INT COMPUTERS LTD
Inventor： TWINE KENNETH FREDERICK C
Abstract: Apparatus for feeding a web of recorded medium such as plastic or paper tape has a capstan roller for feeding a web past a read/write station in a first direction and a device is positioned upstream of the station automatically to form a loop in the web when the capstan roller is disengaged from the web to move a fixed length of the web in a reverse direction past the station to permit reading or re-recording of the information on the web.
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公开(公告)号：US3671351A
公开(公告)日：1972-06-20
申请号：US3671351D
申请日：1969-06-23
Applicant: INT COMPUTERS LTD
Inventor： TIES SIDNEY
CPC classification number: G11B5/84 , G11B5/74 , Y10T156/1093
Abstract: A METHOD FOR PRODUCING A MAGNETIC RECORDING MEMBER HAVING A FILM OF MAGNETIC MATERIAL WITH A HIGHLY FINISHED SURFACE ON A BACKING LAYER IS DISCLOSED. THE METHOD INCLUDES THE STEPS OF PREPARING A GLASS DISC SUCH THAT THE DISC SURFACE IS OF NEAR OPTICAL FLATNESS, DEPOSITING A FILM OF MAGNETIC MATERIAL ON THE DISC, BONDING A BACKING LAYER TO THE FILM AND STRIPPING THE GLASS DISC FROM THE FILM TO REVEAL A HIGHLY FINISHED SURFACE ON THE FILM OF MAGNETIC MATERIAL, THE FILM BEING BONDED TO THE BACKING LAYER. A TWOSIDED MAGNETIC RECORDING MEMBER MAY BE PRODUCED BY PLACING TWO THREE-LAYER STRUCTURES BACK TO BACK AND STRIPPING BOTH GLASS DISCS TO REVEAL TWO HIGHLY FINISHED MAGNETIC FILMS.
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公开(公告)号：US3591170A
公开(公告)日：1971-07-06
申请号：US3591170D
申请日：1969-03-12
Applicant: INT COMPUTERS LTD
Inventor： DOUGHTY KENNETH WILLIAM , WINSTANLEY CYRIL
CPC classification number: B65H7/12
Abstract: A device is disclosed for detecting the presence of overlapping documents in a document feed. The device includes a member rotatable about a pivot and having a surface which, in the unoperated position, is spaced from the feed bed by a distance of approximately 1 1/2 times the thickness of the documents being fed. The surface is formed so that on rotation of the member from its unoperated position the spacing between the surface and the feed bed remains constant or slightly decreases. Documents in overlapped relationship will therefore rotate the member which in turn may interrupt a light beam and stop the document feed. The member may also carry a marking device to mark the overlapped document for subsequent identification.
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公开(公告)号：US3550933A
公开(公告)日：1970-12-29
申请号：US3550933D
申请日：1968-12-26
Applicant: INT COMPUTERS LTD
Inventor： WILSON ERIC
IPC: G06K13/063 , B65H9/10
CPC classification number: B65H9/166 , B65H5/38 , B65H2404/696 , B65H2701/1912 , G06K13/063
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公开(公告)号：US3420164A
公开(公告)日：1969-01-07
申请号：US3420164D
申请日：1965-12-20
Applicant: INT COMPUTERS LTD
Inventor： LEE RONALD HENRY
CPC classification number: B41J19/64
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Patent Agency Ranking36.发明授权
公开(公告)号：US3883737A
公开(公告)日：1975-05-13
申请号：US38095573
申请日：1973-07-20
Applicant: INT COMPUTERS LTD
Inventor： THROSSELL WALTER ROBERT , FRYER PAUL RAYMOND
Abstract: Apparatus for assessing the quality of printed characters on a record has a document support arranged beneath a scanning head. The scanning head has a lens arranged to oscillate in a direction parallel to the vertical axis of characters printed on the document. The lens is arranged to focus a character to be evaluated on to a set of photoelectric strips arranged side-byside in a direction perpendicular to the oscillatory movement of the lens, so that a character image is scanned in vertical strips. The lens moving arrangement also has a timing pulse generator so that the character scan is broken into notional zones which, in conjunction with the orientation of the photoelectric strips enables a matrix representation of the recorded character to be generated. The separate output signals from the photoelectric strips are passed to shifting registers whose stages are connected to a storage matrix capable of selecting an idealised character form to be compared with the scanned character. The comparison is carried out over a number of scanning cycles while the position of the document carrying the character is changed and an indication is provided of the least deviation of the scanned character from the idealised character form during the change. The clock pulse generator is arranged so that non-linear clock pulses are generated from a harmonic scan. Signals from a velocity transducer are utilized to drive a voltage controlled pulse generator whose output frequency is proportional to the input voltage.
Abstract translation: 用于评估记录上的打印字符的质量的装置具有布置在扫描头下方的文档支撑。 扫描头具有布置成在与打印在文档上的字符的垂直轴平行的方向上振荡的透镜。 透镜被布置成将要评估的字符聚焦在与透镜的振荡运动垂直的方向上并排布置的一组光电条，从而以垂直条扫描字符图像。 透镜移动装置还具有定时脉冲发生器，使得字符扫描被分解成图形区域，其结合光电条带的取向使得能够生成记录字符的矩阵表示。
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公开(公告)号：US3879708A
公开(公告)日：1975-04-22
申请号：US37983373
申请日：1973-07-16
Applicant: INT COMPUTERS LTD
Inventor： FRYER PAUL RAYMOND , THROSSELL WALTER ROBERT
CPC classification number: G06K9/20 , G06K9/03 , G06K9/2009
Abstract: Apparatus for assessting the quality of printed characters on a record has a document support arranged beneath a scanning head. The scanning head has a lens arranged to oscillate in a direction parallel to the vertical axis of characters printed on the document. The lens is arranged to focus a character to be evaluated on to a set of photoelectic strips arranged side-byside in a direction perpendicular to the oscillatory movement of the lens, so that a character image is scanned in vertical strips. The lens moving arrangement also has a timing pulse generator so that the character scan is broken into notional zones which, in conjunction with the orientation of the photoelectric strips enables a matrix representation of the recorded character to be generated. The separate output signals from the photoelectric strips are passed to shifting registers whose stages are connected to a storage matrix capable of selecting an idealised character form to be compared with the scanned character. The comparison is carried out over a number of scanning cycles while the position of the document carrying the character is changed and an indication is provided of the least deviation of the scanned character from the idealised character form during the change.
Abstract translation: 用于评估打印字符在记录上的质量的装置具有布置在扫描头下方的文档支撑。 扫描头具有布置成在与打印在文档上的字符的垂直轴平行的方向上振荡的透镜。 透镜被布置成将待评估的字符聚焦在垂直于透镜的振荡运动的方向上并排布置的一组光电条，使得字符图像以垂直条扫描。 透镜移动装置还具有定时脉冲发生器，使得字符扫描被分解成图形区域，其结合光电条带的取向使得能够生成记录字符的矩阵表示。 来自光电带的分离的输出信号被传送到移位寄存器，其移位寄存器被连接到能够选择与扫描字符进行比较的理想化字符形式的存储矩阵。 在多个扫描周期中执行比较，同时改变携带文字的文档的位置，并且在改变期间提供扫描字符与理想化字符形式的最小偏差的指示。
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公开(公告)号：US3846906A
公开(公告)日：1974-11-12
申请号：US36730273
申请日：1973-06-05
Applicant: INT COMPUTERS LTD
Inventor： CASE D
CPC classification number: G11B5/455 , G11B5/1272 , G11B5/1335 , G11B5/193 , Y10T29/49004 , Y10T29/49036 , Y10T29/49041 , Y10T29/49048
Abstract: A method of manufacturing magnetic transducing heads to facilitate testing of individual components of the head is disclosed. A head for digital recording on magnetic discs is made of a slider profiled for co-operation with the disc and contains a pair of gapped pole pieces and a yoke assembly includes a yoke for completing the magnetic circuit and a resilient mounting for the head. The slider and the yoke assembly are tested individually.
Abstract translation: 公开了一种制造磁转换头以便于测试头部的各个部件的方法。 用于磁盘上数字记录的头由与盘相配合的滑动件制成，并包含一对有盖的极片和轭组件，其包括用于完成磁路的轭和用于磁头的弹性安装。 单独测试滑块和轭组件。
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公开(公告)号：US3818310A
公开(公告)日：1974-06-18
申请号：US35098073
申请日：1973-04-13
Applicant: INT COMPUTERS LTD
Inventor： SMITH S
IPC: H03K17/725 , H02P7/06
CPC classification number: H03K17/725
Abstract: A switching circuit for energising a load with unidirectional current of either polarity as desired from an a.c. supply includes a pair of triacs connected as a full wave rectifier in which the control electrodes of the triacs are responsive to control currents which are derived from the a.c. supply by a control switch which switches diodes into the control current path so that the control current flows in a direction such that the triac conducts to establish the required current in the load.
Abstract translation: 一种切换电路，用于根据需要从一个直流电源向任一极性的单向电流供电负载。 电源包括连接为全波整流器的一对三端双向可控硅开关，其中三端双向可控硅开关元件的控制电极响应于从交流电源导出的控制电流。 通过将二极管切换到控制电流路径的控制开关供给，使得控制电流沿着使得三端双向可控硅开关导通以在负载中建立所需电流的方向流动。
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公开(公告)号：US3811038A
公开(公告)日：1974-05-14
申请号：US28879472
申请日：1972-09-13
Applicant: INT COMPUTERS LTD
Inventor： REDDAWAY S
CPC classification number: G06F7/584 , G06F7/58 , G06F2207/581 , G06F2207/583
Abstract: A pseudo-random number generator produces a substantially Gaussian distribution of output numbers from a succession of uniform random numbers. In each cycle uniform random numbers are produced and applied to an adder operative to form cumulative sums. A counter is responsive to carry signals from the adder and the outputs of the adder and counter are combined to form an output pseudo-random number. The number of permitted adding operations is preset.
Abstract translation: 伪随机数发生器从连续的均匀随机数产生输出数的基本高斯分布。 在每个周期中，产生均匀随机数并将其应用于加法器，以形成累积和。 计数器响应于从加法器传送信号，加法器和计数器的输出被组合以形成输出伪随机数。 预设了允许的添加操作的数量。
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