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    33.
    发明专利
    未知

    公开(公告)号：DE3201406A1

    公开(公告)日：1982-09-02

    申请号：DE3201406

    申请日：1982-01-19

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS ,  REITMEIER GLENN ARTHUR

    IPC: H04N11/04 ,  H04N9/64 ,  H04N9/02

    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.

    35.
    发明专利
    未知

    公开(公告)号：FR2497037A1

    公开(公告)日：1982-06-25

    申请号：FR8123600

    申请日：1981-12-17

    Applicant: RCA CORP

    Inventor： REITMEIER GLENN ARTHUR ,  MARLOWE FRANK JEROME

    IPC: G06F11/10 ,  G11B20/14 ,  G11B20/18 ,  H03M13/00 ,  H03M13/27 ,  H04N5/94 ,  H03K13/32 ,  H04N5/91

    Abstract: In a transmission channel, such as a tape recorder, errors in code words usually occur in bursts. Further, it is usually possible to detect only some of the erroneous code words. To conceal undetected erroneous code words, concealment starts before, and continues after, a detected erroneous code word. Thus the undetected erroneous code words in an error burst have a high probability of being concealed.

    38.
    发明专利
    未知

    公开(公告)号：FR2471104A1

    公开(公告)日：1981-06-12

    申请号：FR8025175

    申请日：1980-11-27

    Applicant: RCA CORP

    Inventor： REITMEIER GLENN ARTHUR

    IPC: H04N5/232 ,  H04N5/262 ,  H04N5/44 ,  H04N9/64 ,  H04N9/74 ,  H04N3/22

    Abstract: In television image size altering apparatus of the type wherein pixels relating to a composite video signal are sampled at a synchronous real time rate and wherein the flow of pixel information is coordinated through a memory by a write control and a read control, the composite pixel information is separated into original pixels relating to each basic component of the video signal. Interpolated pixel values are then derived from the original pixel values at an effective rate less than the synchronous rate when compressing the image size and at an effective rate greater than the synchronous rate when expanding the image size. The interpolated pixel values are then combined into new pixel values relating to a new composite video signal and the new pixel values are presented for display at the synchronous rate to alter the size of the television image.

    40.
    发明专利
    未知

    公开(公告)号：IT1200586B

    公开(公告)日：1989-01-27

    申请号：IT1901482

    申请日：1982-01-07

    Applicant: RCA CORP

    Inventor： DISCHERT ROBERT ADAMS ,  REITMEIER GLENN ARTHUR

    IPC: H04N11/04 ,  H04N9/64 ,  H04N

    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.

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