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    62.
    发明专利
    未知

    公开(公告)号：DE3305498A1

    公开(公告)日：1983-08-25

    申请号：DE3305498

    申请日：1983-02-17

    Applicant: RCA CORP

    Inventor： MEISE WILLIAM HARRY ,  DISCHERT ROBERT ADAMS

    IPC: H04N5/46 ,  H04N7/015 ,  H04N11/24 ,  H04N3/30

    Abstract: A wide-angle television system, such as one having 2:1 or 5:3 aspect ratios, transmits end portions that exceed the limits of a conventional 4:3 aspect ratio picture in regions that are normally hidden from view in a conventional receiver. Thus the system is compatible with such a receiver. These regions can comprise the overscan region, blanking intervals, high frequency portions of a chroma signal, etc. Time compression of the end portions can also be used. At a wide-angle receiver, inverse processing is used to reassemble a wide-angle picture.

    CONTROLLED RAM SIGNAL PROCESSOR
    63.
    发明专利
    CONTROLLED RAM SIGNAL PROCESSOR 未知

    公开(公告)号：GB2102603A

    公开(公告)日：1983-02-02

    申请号：GB8220834

    申请日：1982-07-19

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS

    IPC: H03M7/02 ,  G06F1/03 ,  G06F5/00 ,  H04N5/14 ,  H04N7/12 ,  G06F13/06

    Abstract: A digital signal processor uses a RAM for signal processing. This allows the transfer function to be easily changed by either hardwired circuitry or a microprocessor. Two RAMs per channel can be used, one processing the signal, while the other has its transfer function changed. The operations of the RAMs can be changed during a portion of the input signal, e.g. blanking times, when the switch over is not objectionable.

    CONTROLLED RAM SIGNAL PROCESSOR
    64.
    发明专利
    CONTROLLED RAM SIGNAL PROCESSOR 未知

    公开(公告)号：AU8611582A

    公开(公告)日：1983-01-27

    申请号：AU8611582

    申请日：1982-07-16

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS

    IPC: H03M7/02 ,  G06F1/03 ,  G06F5/00 ,  H04N5/14 ,  H04N7/12 ,  G06F1/02 ,  H04N5/26 ,  H04N9/09

    Abstract: A digital signal processor uses a RAM for signal processing. This allows the transfer function to be easily changed by either hardwired circuitry or a microprocessor. Two RAMs per channel can be used, one processing the signal, while the other has its transfer function changed. The operations of the RAMs can be changed during a portion of the input signal, e.g. blanking times, when the switch over is not objectionable.

    66.
    发明专利
    未知

    公开(公告)号：FR2498400A1

    公开(公告)日：1982-07-23

    申请号：FR8200688

    申请日：1982-01-18

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS ,  REITMEIER GLENN ARTHUR

    IPC: H04N11/04 ,  H04N9/64 ,  H04N9/32

    Abstract: In a standard NTSC composite video signal, the peak excursion of the luminance plus chrominance signal for certain saturated colors exceeds the peak excursion of the white-representative luminance alone. When digitized, the signal is subject to quantizing noise. The effective spectial distribution of the quantizing noise is improved by reducing the amplitude of the chrominance signal so that the peak excursion of luminance plus chrominance for saturated colors does not substantially exceed the peak amplitude of white-representative luminance.

    69.
    发明专利
    未知

    公开(公告)号：FR2476955A1

    公开(公告)日：1981-08-28

    申请号：FR8103646

    申请日：1981-02-24

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS ,  FLORY ROBERT EARL

    IPC: H04N9/81 ,  H04N9/825 ,  H04N9/80 ,  H04N9/86 ,  H04N11/12 ,  H04N9/36

    Abstract: An improved transmission arrangement for a color television signal includes a time-division multiplexing apparatus for alternately presenting for transmission through a single channel baseband signals defining the chrominance information of the television signal. In order to provide improved resolution, a store is coupled to the signal source for storing at a writing rate a first of the baseband components during the time at which it is generated. A read generator is coupled to the store for reading the stored baseband component at a higher data rate than that at which it was generated. The baseband component is transmitted through the single channel at the higher data rate.

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