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公开(公告)号：FI79433B
公开(公告)日：1989-08-31
申请号：FI852489
申请日：1985-06-24
Applicant: RCA CORP
Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.
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公开(公告)号：IT1206467B
公开(公告)日：1989-04-27
申请号：IT2339984
申请日：1984-10-31
Applicant: RCA CORP
Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.
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公开(公告)号：GB2187356A
公开(公告)日：1987-09-03
申请号：GB8604864
申请日：1986-02-27
Applicant: RCA CORP
Inventor： ANDERSON CHARLES HAMMOND , CARLSON CURTIS RAYMOND
Abstract: A foveated electronic camera 100 ie. one giving a high resolution area and a low resolution area, like the human eye, employs a data reduction means 108 including a spatial-frequency spectrum analyzer 202 and window gates 204 defining selectable spatial windows. The high resolution, wide field of view signal from imager 106 is analysed by spectrum analyser 202 to give signals from contiguous subspectra bands of the image spatial frequency spectrum, in particular from adjacent octaves of the spatrial spectrum. The subspectra pass through window gates 204 to reduce the field of view of higher resolution subspectra, preferably the number of pixels in each subspectrum being the same (Fig. 5). The position of the high resolution subspectrum within the field of view is selectable. The spectrum analyser preferably employs known 'Burt Pyramid' or 'Filter-Subtract-Decimate Pyramid' filter techniques. The camera finds application in surveillance, robotic and target tracking techniques where computer handling of large amounts of high resolution data is not practical.
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公开(公告)号：DE3639026A1
公开(公告)日：1987-05-21
申请号：DE3639026
申请日：1986-11-14
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：FR2559329A1
公开(公告)日：1985-08-09
申请号：FR8501440
申请日：1985-02-01
Applicant: RCA CORP
Inventor： REITMEIER GLENN ARTHUR , CARLSON CURTIS RAYMOND
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Patent Agency Ranking
公开(公告)号：FI852489A0
公开(公告)日：1985-06-24
申请号：FI852489
申请日：1985-06-24
Applicant: RCA CORP
Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.
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公开(公告)号：FI842489A
公开(公告)日：1984-12-28
申请号：FI842489
申请日：1984-06-20
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 , G06G
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.
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公开(公告)号：IT8423399D0
公开(公告)日：1984-10-31
申请号：IT2339984
申请日：1984-10-31
Applicant: RCA CORP
Abstract: Noise reduction is achieved, without the introduction of noticeable artifacts in the displayed image, using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer for separating the video signal representing the image into subspectra signals, (2) separate coring means for one or more of the analyzed subspectra signals, and (3) then a synthesizer employing one or more non-ringing, non-aliasing filters for deriving an output image-representing signal from all of the subspectra signals.
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公开(公告)号：FI842489A0
公开(公告)日：1984-06-20
申请号：FI842489
申请日：1984-06-20
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 , G06G
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.
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公开(公告)号：DE3429901C2
公开(公告)日：1993-11-04
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 , H03M7/30
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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