AMPLIFIER SUITABLE FOR USE AS A COLOR KINESCOPE DRIVER

    公开(公告)号:KR800000858B1

    公开(公告)日:1980-08-26

    申请号:KR760000813

    申请日:1976-04-02

    Applicant: RCA CORP

    Abstract: Amplifier arrangement for driving color image reproducing kinescope(153) is composed of amplifying means for combining the chrominance signals and the luminance signals, 1st capacitor(110) for coupling the chrominance signals to the 1st input terminal, comparator means(168) having 1st and 2nd input terminals for comparing voltages applied to the terminals, a low level stabilized reference voltage source(169) coupled to the 1st input terminal of the comparator means, and current converter(180) coupled to the comparator and to the 1st capacitive means.

    DISC RECORD GROOVE SKIPPER
    42.
    发明授权

    公开(公告)号:KR800000656B1

    公开(公告)日:1980-07-12

    申请号:KR750001827

    申请日:1975-08-18

    Applicant: RCA CORP

    Abstract: Appts. for repositioning a signal pickup stylus from one convolution to another of a signal encoded spiral groove on the disc record is composed of a signal pickup stylus for recovering the recorded information, a pivoted support arm(21)for positioning the stylus(17) in the groove of the disc record during rotation and control means. The stylus which cooperates with an information storing spiral groove on a video disc record is caused to selectively skip groove convolutions of the disc record to produce special effects including stop, fast-forward andreverse motion of the displayed image.

    DISPLAY SYSTEM UTILIZING BEAM SHAPE CORRECTION

    公开(公告)号:KR800000610B1

    公开(公告)日:1980-06-30

    申请号:KR750002154

    申请日:1975-10-02

    Applicant: RCA CORP

    Abstract: A color picture reproducing tube utilizes three coplanar electron beams. Convergence of the three beams along at least one axis is accomplished by a deflection assembly producing a magnetic deflection field with particular astigmatism characteristics which also elliptically disorts each of the three beams in a first direction. The electron gun assembly within the picture tube includes apertured electrods which predisort the beams elliptically in a second direction orthogonal to the first direction of disortion.

    COMB FILTER FOR VIDEO PROCESSING
    44.
    发明授权

    公开(公告)号:KR800000581B1

    公开(公告)日:1980-06-26

    申请号:KR750002038

    申请日:1975-09-15

    Applicant: RCA CORP

    Inventor: AMERY J

    Abstract: In a system receptive to the first composite video signal which has a mominal line frequency and a luminance signal componet, a given band of frequencies & a chrominance signal component are interleaved in a portion of the signal band. this filter comprises conversion means(18,20,26,28,30), a delay apparatus(58), the first signal responding devices(46,48,68),the second signal responding device and synthesizing devices(82,84,118).

    CIRCUIT FOR MAINTAINING OPERATING POINT STABILTY OF AN AMPLIFIER

    公开(公告)号:KR800000295B1

    公开(公告)日:1980-04-10

    申请号:KR750001981

    申请日:1975-09-05

    Applicant: RCA CORP

    Inventor: WILLIS D

    Abstract: Amplifier for driving a color image reproducing device comprises a first transistor(46a) whose base is capacitively coupled to a source of color difference signals. The emitter of the first transistor is DC coupled to the base of a second transistor(48a). The emitter of the second transistor is coupled to a source of a predetd. voltage. The capacitive coupling device(54a) and the second transistor form a clamping cct. for maintaining the voltage developed at the emitter of the first transistor which is substantially independent of DC condition of the source of color difference signals and baseto-emitter voltage variations of the first transistor.

    SIDE PINCUSHION CORRECTION CIRCUIT
    46.
    发明授权

    公开(公告)号:KR800000274B1

    公开(公告)日:1980-04-09

    申请号:KR750000626

    申请日:1975-03-25

    Applicant: RCA CORP

    Inventor: DIETZ W

    Abstract: In a raster correction circuit, impedance in controlled by a parabolic vertical rate waveform (50) to alter the charging rate of a storage capacitor(42) coupled to the rectifier(39) for supplying the vertical operating current. The parabolically varying rectifier current alters the loading of the horizontal transformer(20) and alters the horizontal scanning current at a vertical rate in a manner to correct for side pincushion distortion.

    DEFECTION CIRCUIT
    48.
    发明授权

    公开(公告)号:KR800000115B1

    公开(公告)日:1980-03-07

    申请号:KR750002783

    申请日:1975-12-19

    Applicant: RCA CORP

    Inventor: HAFERL P

    Abstract: A deflection cct. had a capacitor(62) whose capacitance and withstand voltage is reduced by connecting the capacitor(62) to the winding (60b, 60c) of the transformer(60) in series. Centering current induced by centering cct. is integrated by coupling capacitor, so that DC current components are flowed through the yoke winding during the horizontal scan period to increase the reliability of the cct.

    OPTICAL DISPLAY ASSEBLAGE
    49.
    发明授权

    公开(公告)号:KR790001852B1

    公开(公告)日:1979-12-24

    申请号:KR750001664

    申请日:1975-07-29

    Applicant: RCA CORP

    Inventor: LAZZERY A G

    Abstract: This module for a watch having a crystal display was comprised of a carrier on which a semiconductor chip and connectors to connect the output of chip install, a fixed device for fixing a frame to the carrier and elastic connectors which was located on the frame for connecting with carrier and liquid crystal cell connectors.

    INDEPENDENT ELECTRONIC GUN BIAS CONTROL

    公开(公告)号:KR790000384B1

    公开(公告)日:1979-05-09

    申请号:KR740001492

    申请日:1974-02-14

    Applicant: RCA CORP

    Abstract: A bias control circuit suitable for elaborate inline gun tube is described. This circuit is composed of several electron guns that have independent cathode. Each voltage clamping circuit is coupled with the output electrode, several amplifiers have a supply source of repetition pulse having selected duty cycle, and voltage dividing circuit.

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