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    Teaching and game playing machine
    1.
    发明授权
    Teaching and game playing machine 失效
    教学与游戏机

    公开(公告)号：US3629956A

    公开(公告)日：1971-12-28

    申请号：US3629956D

    申请日：1970-08-04

    Applicant: RCA CORP

    Inventor： THOMAS LUCIUS PONDER ,  MCDONALD JAMES ALEXANDER ,  JANSON EUGENE ERNST ,  CHRISTOPHER TODD J ,  PEER JOHN CHARLES

    IPC: G09B7/08

    CPC classification number: G09B7/08

    Abstract: Frames on a film may contain multiple choice questions which can be answered by selecting one of a number of answer buttons but each frame includes only a single next address code. The latter has only a small number of bits but is ambiguous in the sense that the present address on a number of frames is equal to this next address. The ambiguity is resolved by counting the frames having this common present address until the one called for by the selected answer button is reached. A second feature of the machine useful in playing games is the production of a random number in response to a user actuated button for comparison with the count of frames having a particular common present address.

    Kinescope socket
    4.
    发明授权
    Kinescope socket 失效
    KINESCOPE插座

    公开(公告)号：US3668475A

    公开(公告)日：1972-06-06

    申请号：US3668475D

    申请日：1970-12-24

    Applicant: RCA CORP

    Inventor： OWENS RAYMOND CLYDE ,  THOMAS LUCIUS PONDER

    IPC: H01T4/08 ,  H02H1/04

    CPC classification number: H01T4/08

    Abstract: A kinescope socket includes two sections secured together by conductive connectors, with keyhole openings in each of the sections in alignment. A portion of each conductive connector is held captive within one of a plurality of kinescope pin receptacles in the first section. The other section has a conductive pattern on one of its surfaces. The pattern includes conductive pads electrically connected to pins of a kinescope when inserted into the kinescope pin receptacles by a second portion of the conductive connector. The second portion passes through the two sections and is connected by a conductive strap to the first portion. The conductive pattern also includes a conductive area adjacent to, but separated from, the conductive pads to provide an arc gap therebetween.

    Abstract translation: 显像管插座包括通过导电连接器固定在一起的两个部分，每个部分中的键孔开口对齐。 每个导电连接器的一部分被保持在第一部分中的多个显像管针插座的一个内。 另一部分在其一个表面上具有导电图案。 该图形包括当通过导电连接器的第二部分插入到显像管引脚插座时电连接到显像管的引脚的导电焊盘。 第二部分穿过两个部分，并通过导电带连接到第一部分。 导电图案还包括与导电焊盘相邻但与之隔离的导电区域，以在它们之间提供电弧间隙。

    6.
    发明专利
    未知

    公开(公告)号：DE967705C

    公开(公告)日：1957-12-05

    申请号：DER0010338

    申请日：1952-11-23

    Applicant: RCA CORP

    Inventor： THOMAS LUCIUS PONDER ,  HOYT CLYDE WARREN

    IPC: H04N5/21 ,  H04N5/213

    Abstract: 740,370. Television. RADIO CORPORATION OF AMERICA. Nov. 7, 1952 [Nov. 23, 1951], No. 28162/52. Class 40 (3). [Also in Group XL (c)] In a television receiver noise impulses exceeding the sync pulse amplitude in an I.F. stage 14 produce, due to anode current saturation being reached, rectified impulses of synchronizing frequency in the I.F. stage screen grid circuit 34, 50, which are applied through a capacitor 65 and resistor 66 to the line and frame sync separator valves 30, 32 at the intermediate point of resistors 58, 59 connected as shown to the video output stage 90 and the grids of the valves, to cancel out or reduce the noise superimposed on the sync pulses. The cancellation pulses first may be amplified. An A.G.C. voltage may be applied at 69 to the cathodes of the sync separator valves to vary the threshold bias of the synchronizing valves for varying signal levels.

    7.
    发明专利
    未知

    公开(公告)号：DE1215757B

    公开(公告)日：1966-05-05

    申请号：DER0039894

    申请日：1965-02-12

    Applicant: RCA CORP

    Inventor： THOMAS LUCIUS PONDER

    IPC: H03G11/00 ,  H04N5/08 ,  H04N5/10 ,  H04N5/12 ,  H04N5/213

    Abstract: 1,105,661. Field effect transistor clipper circuit; television synch, signal separator. RADIO CORPORATION OF AMERICA. 3 Feb., 1965 [12 Feb., 1964], No. 4704/65. Headings H3T and H4F. A method of clipping an input signal to obtain an output signal comprises applying an input signal between the source and gate of an insulated gate field effect transistor and applying a control signal to bias the transistor at a level above which the input signal causes the transistor to conduct to obtain an output signal which corresponds to the portion of the input signal that exceeds the bias level. A clipper circuit for carrying out this method may be used as a noise inverter 200 and as a synch. separator 205 for separating the horizontal and vertical synch. pulses from the picture signal in a television receiver as shown. The transistor 50 is biased by an A.G.C. voltage 218 so that any noise occurring on the picture signal from the output of the video amplifier 210 is inverted at the output drain electrode 56. This inverted noise signal is applied via a capacitor 60 to the input of the synch. separator transistor 80 together with the picture signal from the video amplifier 210 applied across the terminals t, t 1 so that the noise signal is eliminated. The video signal is coupled via a resistor 84 and capacitor 87 to the substrate electrode 108 of the field offset transistor 80 so that the rectifier diode (110, Fig. 8, not shown) between the substrate electrode and the source electrode biases the gate 76 at a value such that the synch. pulses are aligned at this potential level. The resistor 84 may be connected to a tapping point on the resistor 70. In an alternative synch separator circuit (Fig. 9, not shown), an additional short time constant R.-C. circuit (88, 90) is connected between the point b and capacitor 87 and a diode (82) is connected in parallel with the resistor 93 in place of the substrate diode connection. In a simplified clipper circuit (Fig. 4, not shown), the input signal (49) is applied to the source electrode and the control voltage which may be an A.G.C. voltage (V3) is applied to the gate electrode (44). Similar synch. separator and limiter circuits are described in Specification 1,043,124. Reference has been directed by the Comptroller to Specification 1,043,124.

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