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    Interlock circuit
    2.
    发明专利
    Interlock circuit 未知

    公开(公告)号：GB1082426A

    公开(公告)日：1967-09-06

    申请号：GB1990366

    申请日：1966-05-05

    Applicant: IBM

    Inventor： TAUB DANIEL MATTHEW

    IPC: H03M11/02

    Abstract: 1,082,426. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 5, 1966, No. 19903/66. Heading H3T. [Also in Divisions B6 and G4] An electronic latching circuit suitable for use in a touch-operated keyboard comprises a number of bi-stable circuits each having a " set " input terminal, the " set " input signal for each circuit causing the other circuits to be reset. In Fig. 1 (not shown), capacitive type buttons (Ka-Kk) when touched feed a " set " signal to the corresponding bi-stable circuit (Ba-Bk) and light a corresponding lamp. The " set " signal also passes through an OR gate (G) to generate a " reset " signal (at R) which is effective to reset any of the bi-stable circuits that are in the " set " state except that or those receiving the " set " signal. All circuits may be reset by touching button (K R ). The buttons (Ka-Kk) are one group of a number of such groups, a message being set up by pressing one button in each group and transmitted if the correct lamps are lit. If two buttons in a group are touched two lamps light and if this is not corrected as by leaving one finger on longer than the other, a fault condition may be signalled. In Fig. 2 which shows one button circuit A and one bi-stable circuit B the button K forms part of a bridge R 1 , R 2 , (C 1 and C 5 ) and Cin. Touching the button unbalances the bridge so that pulses applied at 10 pass via the bridge to transistors T 1 and T 2 to cause a capacitor C 2 to progressively charge. This causes the bistable circuit to be changed to its " set " state and lamp L to light. The lowering of the potential at the input of B causes the diode D2 of an OR gate G to conduct and so to cause transistor T7 of the reset pulse generator R to conduct. The resulting reset signal is fed in parallel to the other bi-stable circuits and also through D3 and R4 to the input of the gate where it constitutes negative feedback. As such it is smaller than the original " set " signal and accordingly does not reset bi-stable B.

    Improvements in digital data storage devices
    3.
    发明专利
    Improvements in digital data storage devices 未知

    公开(公告)号：GB1037992A

    公开(公告)日：1966-08-03

    申请号：GB1182562

    申请日：1962-03-28

    Applicant: IBM

    Inventor： TAUB DANIEL MATTHEW

    IPC: G11C17/02

    Abstract: 1,037,992. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 26, 1963 [March 28, 1962], No. 11825/62. Heading G4A. A read-only store comprises rows and columns of sense and drive lines respectively and overlaying them a conductive sheet which to store a binary one is punched at intersections of the lines in a pattern which links the lines inductively and to store a zero a hole covering the intersection is punched. It is preferred that the conductive sheet is initially punched to store ones at all locations and that the store is of such a size that a hand card punch can be used to punch zeroes. In Fig. 3 a rectangular storage location is defined by the intersections of the drive lines 1 (a central conductor and two earthed return conductors) and guard conductors 3. The sense line 2 crosses the location to define six sub-rectangles. To store a binary one three of these are punched out as shown so that change of current in the drive lines induces a circulating current in the remaining subrectangles which in turn induce a current pulse in the sense lines. To store a binary zero all six sub-rectangles are punched out. Several other patterns for varying configurations of drive and sense lines are described in the Specification.

    Improvements in information stores
    6.
    发明专利
    Improvements in information stores 未知

    公开(公告)号：GB1014476A

    公开(公告)日：1965-12-22

    申请号：GB3130162

    申请日：1962-08-15

    Applicant: IBM

    Inventor： TAUB DANIEL MATTHEW

    IPC: G11C17/00 ,  G11C17/02

    Abstract: 1,014,476. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 31, 1963 [Aug. 15, 1962], No. 31301/62. Heading G4A. Where an inductive connection is made between drive conductors 11 and sense conductors 12 by means of patterns of coupling conductors 16 or 17, the effect is enhanced by providing an unbalanced capacitive coupling between the conductors. It is explained that by splitting the coupling conductors diagonally, as shown, the coupling between conductors X and C is greater than that between X and D. The e.m.f. across C and D is therefore increased by this capacitive coupling. Various patterns are shown for various configurations of drive conductors, including a single drive conductor which for a short distance is caused to run parallel to the sense conductors. The patterns 16, 17 can represent the two binary values or two of the ternary values, the zero being represented by absence of a pattern.

    Improvements in information stores
    7.
    发明专利
    Improvements in information stores 未知

    公开(公告)号：GB1011325A

    公开(公告)日：1965-11-24

    申请号：GB3080162

    申请日：1962-08-10

    Applicant: IBM

    Inventor： TAUB DANIEL MATTHEW

    IPC: G11C17/00 ,  G11C17/02

    Abstract: 1,011,325. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 31, 1963 [Aug. 10, 1962], No. 30801/62. Heading G4A. An inductor coupling between drive lines 11 and sense lines 12 is achieved by a pattern of coupling conductors 14 which may be, as shown, printed on an insulating sheet or formed by punching out the complementary pattern on a copper sheet. The patterns for binary one and zero are such that, whatever the value of the bit stored, a constant impedance is presented to the drive and sense currents. Several variations of the patterns shown at 14, 15 are described in the Specification. In providing for a ternary code a further pattern is used which gives rise to no e.m.f. in the sense line. The looped ends of the drive and sense conductors may be terminated by their characteristic impedance to prevent reflection of high frequency currents. Specification 996,172 is referred to.

    Improvements in or relating to electrical assemblies
    10.
    发明专利
    Improvements in or relating to electrical assemblies 未知

    公开(公告)号：GB1055632A

    公开(公告)日：1967-01-18

    申请号：GB2163263

    申请日：1963-05-30

    Applicant: IBM

    Inventor： TAUB DANIEL MATTHEW

    IPC: G11C17/04

    Abstract: 1,055,632. Circuit assemblies. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 9, 1964 [May 30, 1963], No 21632/63. Heading H1R. In a read-only memory device, Figs. 4, 5, each of a plurality of matrix sub-assemblies 12 comprises a sheet of epoxy-glass or -paper having on one side a number of parallel drive conductors D1 &c., formed with capacitor plates (shown hatched in Fig. 4) where desired, and on the other side a number of conductors CP &c., running at right angles to the drive conductors and registering with the capacitor plates; these sub-assemblies 12 are mounted on a tape cable 11 comprising a plastics sheet bearing on one side a number of sense line conductors SP &c. in register with conductors CP &c. from which they are insulated by a dielectric film 17, and on the other side a ground plane conductor 16. The drive conductors are thus capacitively coupled via conductors CP &c. to the sense line conductors at the locations of the capacitor plates.

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