公开(公告)号：TW012897B

公开(公告)日：1973-06-01

申请号：TW019563

申请日：1971-11-29

Applicant: RCA CORPORATION

Inventor： JOSEF GROSS ,  WILLIAM HENRY BARKOW

IPC: H04N

公开(公告)号：TW015028B

公开(公告)日：1974-02-01

申请号：TW019151

申请日：1971-08-31

Applicant: RCA CORPORATION

Inventor： EDWARD CHARLES ROSS

IPC: G11B

公开(公告)号：WO1985004755A1

公开(公告)日：1985-10-24

申请号：PCT/US1985000570

申请日：1985-04-04

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  HAFERL, Peter, Eduard

IPC: H01J29/56

CPC classification number: H04N3/237

Abstract: The faceplate (18) of a square-planar picture tube (10) is relatively flat, with a curvature along the major axis and lines parallel thereto that is generally greater near the left and right edges than in the center. An LC tuned circuit (60), coupled to the deflection winding (LH), has a resonant period of oscillation approximately half that of the line trace interval. The tuned circuit (60) introduces an oscillatory correction component into the trace current that provides additional S-shaping in that portion of the line scan intermediate the center and the left or right edge.

公开(公告)号：WO1984000658A1

公开(公告)日：1984-02-16

申请号：PCT/US1983001173

申请日：1983-08-01

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  BALABAN, Alvin, Reuben ,  STECKLER, Steven, Alan

IPC: H04N09/535

CPC classification number: H04N9/78

Abstract: Signal separation arrangements for separating frequency interleavd signal components of a video signal one of which is modulated as a double sideband modulated component of a subcarrier frequency. A video signal is sampled by a digital-to-analog converter (10). The resultant signal samples are applied to a bandpass filter (12). The bandpass filter produces a filtered signal restricted to a given passband of the original video band over which the double-sideband-modulated component is modulated. The filtered information in the passband is comb-filtered by a comb filter (20) operating on selected ones of the bandpass-filtered samples in response to a subsampling clock signal. The subsampling clock frequency is less than or equal to the subcarrier frequency. The comb filter comprises a shift register (22) and a signal combining circuit (24). Comb-filtered samples, produced at the subsampling clock rate, correspond to one of the interleaved signal components.

公开(公告)号：WO1984000273A1

公开(公告)日：1984-01-19

申请号：PCT/US1983000961

申请日：1983-06-23

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  ACAMPORA, Alfonse

IPC: H04N09/537

CPC classification number: H04N9/68

Abstract: An automatic color control (ACC 90) for a digital television receiver is compatible with and is unaffected by variation of the phase of the color subcarrier signal introduced in demodulating the color subcarrier to effect control of tint. ACC (90) is effectuated by digital gain control for scaling the digital words representing the sampled magnitudes of the color subcarrier burst signals. Quadrature demodulation (30, 32) of the color subcarrier produces color signal digital words I and Q which are each sampled and latched (36, 42) during the color subcarrier burst. The sampled digital words are each squared (38, 44) and are then summed (46) together. The summed digital word is compared (48) to a chroma reference digital word and the difference digital word is employed to scale the color subcarrier digital words.

公开(公告)号：WO1984000263A1

公开(公告)日：1984-01-19

申请号：PCT/US1983000911

申请日：1983-06-10

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  CLARK, John, Fulmer

IPC: H04B07/185

CPC classification number: H04B7/002

Abstract: A method and system for use with or in a satellite (S) for compensating for cross coupling of satellite feeder link signals from a first channel (WV) of a first linear polarization (vertical) as received by a first linearly polarized satellite antenna element (11) with adjacent signals from a second channel (LH or UH). The second channel signals are at a generally orthogonal linear polarization. The system includes a second linearly polarized antenna element (13) oriented orthogonal to the first antenna element (11) for sensing the second channel signal, a gain controlled amplifier (41 or 55) for reducing the gain of the second channel signals received at the second antenna element (13) in inverse proportion to the sensed amount of cross coupling (depolarization), an inverter (43 or 43a) for inverting the reduced gain signals and a summer (35) for summing the inverted, reduced gain signals with the first channel signals from said first antenna element (11).

公开(公告)号：WO1988002907A1

公开(公告)日：1988-04-21

申请号：PCT/US1987002553

申请日：1987-10-07

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  SPRAGUE, David, Leroy ,  FEDELE, Nicola, John ,  RYAN, Lawrence, David ,  DISCHERT, Robert, Adams

IPC: G09G01/28

CPC classification number: H04N5/907 ,  G09G5/02 ,  H04N9/87

Abstract: Computer main memory is used for storing relatively densely sampled wideband video information concerning a television display and for storing relatively sparsely sampled narrowband video information concerning the same television display. The relatively densly sampled wideband video information is read out in substantially real time from computer main memory during line trace intervals in the television display. The relatively sparsely sampled narrowband video information is read out of computer main memory in advanced and compressed time during selected line retrace intervals in the television display. The wideband video information may be luminance information; and the narrowband video information chrominance information.

公开(公告)号：WO1986003921A1

公开(公告)日：1986-07-03

申请号：PCT/US1985002373

申请日：1985-11-29

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  ARBEITER, James, Henry ,  BESSLER, Roger, Frank

IPC: H04N07/01

CPC classification number: H04N7/012 ,  G06T3/4023

Abstract: The invention reduces storage capacity required by one dimensional digital filter/decimator (300, 302) and/or expander/interpolation filter (400, 402) used for spatially filtering that given dimension of a scanned two-dimensional image, orthogonal to raster scan lines. Such filter devices are particularly suitable for use in Burt Pyramid image processing systems.

Abstract translation: 本发明减少了一维数字滤波器/抽取器（300,302）和/或扩展器/内插滤波器（400,402）所需的存储容量，用于空间滤波扫描的二维图像的给定尺寸，与光栅扫描线正交 。 这种过滤装置特别适用于Burt Pyramid图像处理系统。

公开(公告)号：WO1984000659A1

公开(公告)日：1984-02-16

申请号：PCT/US1983001174

申请日：1983-08-01

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  BALABAN, Alvin, Reuben ,  BOLGER, Thomas, Vincent ,  LEWIS, Henry, Garton, Jr. ,  STECKLER, Steven, Alan

IPC: H04N09/535

CPC classification number: H04N9/78

Abstract: A signal separation system operating at a reduced data rate, which requires comparably fewer storage locations than previous arrangements. Such a signal separation system, for use in a television receiver, separates two sampled data video signal components which are interleaved in frequency. This system comprises means (12) for passing the sampled data video signals at a data rate less than the original sampling rate. A comb filter (20) is responsive to the reduced sample rate signal, and produces the comb-filtered output signal.

Abstract translation: 相比之下，降低速率的信号分离系统比以前的配置需要更少的存储位置。 在电视接收机中使用的这种信号分离系统分离出两个频率被共同化的采样数据视频信号分量。 该系统包括用于以小于原始采样率的速率传送采样的视频视频信号的机构（12）。 梳状滤波器（20）响应降低的采样率信号并产生梳状滤波器输出信号。

公开(公告)号：WO1983003166A1

公开(公告)日：1983-09-15

申请号：PCT/US1983000294

申请日：1983-03-07

Applicant: RCA CORPORATION

Inventor： RCA CORPORATION ,  IPRI, Alfred, Charles ,  STEWART, Roger, Green

IPC: H01L29/78

CPC classification number: G11C16/0416 ,  H01L29/7883

Abstract: Un dispositif de mémoire rémanente à porte flottante et modifiable électriquement a un rendement amélioré d'écriture grâce à une extension (28.2) de la porte flottante (28.0). L'extension (28.2) s'étend sur la ligne collectrice (20) d'un dispositif de mémoire adjacent et fournit à la porte flottante (28.0) une capacitance supplémentaire pendant l'opération d'écriture, ce qui permet d'obtenir un rendement d'écriture plus élevé pour une tension donnée.