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42.
公开(公告)号:GB2183121B
公开(公告)日:1989-10-04
申请号:GB8626929
申请日:1986-11-11
Applicant: RCA CORP
Inventor: BERGEN JAMES RUSSELL , CARLSON CURTIS RAYMOND
Abstract: By analyzing the spatial-frequency spectrum of a high-resolution image into a low-pass remnant subspectrum band having a nominal high-frequency cutoff below that of one or more other spatial frequency bands, and separately transmitting each band, starting with the remnant band, over a narrow-band communication channel from a transmitter to an image display at a remote receiver, useful information as to the image contents is available more quickly to the viewer of the display than by past methods of transmitting high-resolution image information over a narrow-band communication channel for display.
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公开(公告)号:GB2153626B
公开(公告)日:1987-11-18
申请号:GB8502627
申请日:1985-02-01
Applicant: RCA CORP
Inventor: REITMEIER GLENN ARTHUR , CARLSON CURTIS RAYMOND
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公开(公告)号:GB2145902B
公开(公告)日:1987-08-26
申请号:GB8421590
申请日:1984-08-24
Applicant: RCA CORP
Inventor: CARLSON CURTIS RAYMOND
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.
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公开(公告)号:FR2560699A1
公开(公告)日:1985-09-06
申请号:FR8410174
申请日:1984-06-27
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: The spectrum analyser has a pipeline structure with a set of N serial transfer devices for signal samples in order to analyse the frequency spectrum in delayed realtime. Each transfer device has two inputs and two outputs all connected in a specified manner to other transfer devices and clocked by specified clock signals. Each transfer device for the data component has low-pass transfer characteristics between its first input and its first output. These characteristics are chosen with a nominal cut-off frequency that is a direct function of the sampling frequency of the clock signal fed to the second input of this transfer device.
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公开(公告)号:GB2145305A
公开(公告)日:1985-03-20
申请号:GB8420030
申请日:1984-08-07
Applicant: RCA CORP
Inventor: REITMEIER GLENN ARTHUR , CARLSON CURTIS RAYMOND
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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公开(公告)号:DE3423484A1
公开(公告)日:1985-01-10
申请号:DE3423484
申请日:1984-06-26
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 , G01R23/16
Abstract: A pipeline structure (Figure 3) is used for one or both of the following processes: (a) for the analysing, occurring at delayed real time, of the frequency spectrum of an information component (having one or more dimensions) of a given time signal (G0), the maximum frequency of interest of which is no greater than f0 and (b) for synthesising, in delayed real time, such a temporal signal (G0) from its frequency analysis spectrum (L0...G OMEGA ). Such a pipeline structure is particularly suitable for image processing of the two-dimensional space frequencies of television images which are defined by a temporal video signal (Figure 3). … …
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公开(公告)号:ZA8404037B
公开(公告)日:1984-12-24
申请号:ZA8404037
申请日:1984-05-28
Applicant: RCA CORP
Inventor: CARLSON CURTIS RAYMOND , ARBEITER JAMES HENRY , BESSLER ROGER FRANK , ADELSON EDWARD HOWARD , ANDERSON CHARLES HAMMOND , LIMBERG ALLEN LEROY
IPC: H03F3/30 , G01R23/167 , G06F17/10 , G06T5/20 , H03F3/20 , H03H17/00 , H03H17/02 , H04N5/14 , H04N7/26 , H04N , G01R
CPC classification number: H04N19/63 , G01R23/167 , G06F17/10
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