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    12.
    发明专利
    未知

    公开(公告)号：FR2551287B1

    公开(公告)日：1990-04-20

    申请号：FR8413380

    申请日：1984-08-29

    Applicant: RCA CORP

    Inventor： CARLSON CURTIS RAYMOND

    IPC: H04N3/00 ,  H04N5/44 ,  H04N7/01 ,  H04N3/16 ,  H04N9/31

    Abstract: A television arrangement produces a progressively-scanned display from signals representing an image scanned by a raster having lines of even fields separated vertically by a distance 2S interlaced with the lines of odd fields. For 2:1 interlace, the lines of the odd fields are spatially separated from the adjacent lines of even fields by a distance S. The lines of signal for application to the display are generated by a spatial filter having a response in the vertical direction such that an output signal occurs for each traversal of a distance S. Thus, the number of lines is doubled in each field. The lines are generated in simultaneous pairs. A parallel-to-serial converter (PISO) converts the simultaneous signals to sequential for display by progressive scanning. The PISO may be a time compressor for use with a double-rate display or a switcher for use with a vertically-dithered display. The characteristics of the filters are selected to match the psychovisual properties of the eye for eliminating line crawl, and for reducing edge flicker and motion artifacts without excessive image degradation. Advantage is taken of the psychovisual phenomenon known as adjacent band masking.

    Method and device for reduction of image data
    15.
    发明专利
    Method and device for reduction of image data 未知

    公开(公告)号：DE3624818A1

    公开(公告)日：1987-02-05

    申请号：DE3624818

    申请日：1986-07-23

    Applicant: RCA CORP

    Inventor： ANDERSON CHARLES HAMMOND ,  CARLSON CURTIS RAYMOND ,  BURT PETER JEFFREY

    IPC: G06T5/00 ,  G06T9/00 ,  H04N7/26 ,  G06F15/66 ,  G06F15/64 ,  H04N5/232 ,  H04N7/12 ,  H04N7/18

    Abstract: An electronic camera (100) with concentration of the resolving power by area (Fovea control) uses a space frequency spectral analyser (202) and a data reduction device (204-0, etc.), which works with moveable space windows, to convert an image which has high resolution and corresponds to a broad field of vision into a group of images which each contain a partial band of the spectrum. The resolution and field of vision of these partial band images range from a very low resolution image of the whole field of vision to a very high resolution image of a very small partial area, the position of which can be selected, of the whole field of vision. Such a camera is useful, for instance, in a surveillance camera system or robot system.

    18.
    发明专利
    未知

    公开(公告)号：FR2560700A1

    公开(公告)日：1985-09-06

    申请号：FR8502983

    申请日：1985-02-28

    Applicant: RCA CORP

    Inventor： CARLSON CURTIS RAYMOND ,  ARBEITER JAMES HENRY ,  BESSLER ROGER FRANK ,  ADELSON EDWARD HOWARD ,  ANDERSON CHARLES HAMMOND ,  LIMBERG ALLEN LEROY

    IPC: H04N5/14 ,  G01R23/165 ,  G01R23/167 ,  G06F3/05 ,  G06F17/10 ,  G06T11/60 ,  H03H17/02 ,  H03M7/30 ,  H04N7/26 ,  G06F15/62 ,  H04N5/91 ,  H04N9/64

    Abstract: PURPOSE: To efficiently and accurately obtain a complex signal by inserting a delay and forming information samples, simultaneously generated in each adder when signals, having time deviation in a signal group is transmitted thereby composing the composite signal in real time. CONSTITUTION: 1st input terminals of relay means 100-2 to 100-n are connected to the 1st output terminals of relay means 100-1 to (n-1) respectively. Then, sampling frequency clocks CL1 to CLn are applied to other input terminals, and other input terminals are corrected by correcting parts 345 to 349, via delays 340 to 344 and connected to adders ADD 359 to 363, respectively. For example, when a thirdly generated signal and a fourthly generated signal are combined and transmitted, it causes time deviation. Then, the 3rd signal precedented generated is delayed for a prescribed time by the delay 342 to form an information sample practically simultaneously generated in the adder 359. Thus, since the composite signal is composed only by a realtime processing, a complex signal is obtained. efficiently and accurately.

    20.
    发明专利
    未知

    公开(公告)号：DE3429901A1

    公开(公告)日：1985-03-07

    申请号：DE3429901

    申请日：1984-08-14

    Applicant: RCA CORP

    Inventor： REITMEIER GLENN ARTHUR ,  CARLSON CURTIS RAYMOND

    IPC: H04N7/26 ,  H04B14/04 ,  H04H20/00 ,  H04L25/17 ,  H04N7/12 ,  H04N7/30 ,  H04N11/04 ,  H04N7/13

    Abstract: A digital TV system reduces the data rate by transmitting or recording only bytes representing half of the sampled pixels. Steering bits are also transmitted that tell which of the transmitted bytes are the closest match to the untransmitted bytes so the pixels represented by the later can be reconstructed. The steering or control bits are repeated for subsequent omitted bytes unless it no longer indicates a match within a selected tolerance or threshold.

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