公开(公告)号：DE2711947A1

公开(公告)日：1977-09-22

申请号：DE2711947

申请日：1977-03-18

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  BANKS ARTHUR JAMES ,  HOPKINS JUN ROBERT SHERMAN

IPC: H04N5/073 ,  H04N9/475 ,  H04N9/896 ,  H04N5/04 ,  H04N9/44

Abstract: TELEVISION SYNCHRONIZING APPARATUS Television synchronizer apparatus includes a coherent memory with preassigned fixed burst phasing of 0.degree. or 180.degree. for each line store of color video image information. The incoming synchronizing components including burst are discarded on the premise that they are well-known repetitive functions. The incoming color video image information is read into the memory coherent with the preassigned burst phasing, thereby significantly reducing the memory storage capacity normally utilized to store sync and burst information.

公开(公告)号：DE2636481A1

公开(公告)日：1977-02-17

申请号：DE2636481

申请日：1976-08-13

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  WALTER JAMES MORGAN

IPC: G11B20/02 ,  H04N9/89 ,  H04N9/896 ,  H04N5/04 ,  H04N5/08

Abstract: A synchronizing system separates the synchronizing components from a composite video signal into signal components representing horizontal sync and color burst. The leading edge of the horizontal sync component is used to develop a timing signal which is compared with the positive and negative averaged burst signal from a band pass filter tuned to the burst frequency. Comparators drive respective flip-flops arranged to provide both negative and positive burst signal outputs at a selected burst signal crossover near the end of the original burst signal.

公开(公告)号：DE2414013A1

公开(公告)日：1974-10-03

申请号：DE2414013

申请日：1974-03-22

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  MONAHAN JOHN FRANCIS

IPC: H04N9/093 ,  H04N9/08

Abstract: The described control system provides automatic registration of colors for television reproduction by comparing individual horizontal and vertical color components of an object scene, and by developing output control voltages whenever mis-registration occurs. The horizontal and vertical components of one such color are periodically compared against themselves at different points in the system to provide a further control signal indicative of differences in the translation characteristics of the comparison channels utilized.

公开(公告)号：FR2599204B1

公开(公告)日：1990-03-16

申请号：FR8707251

申请日：1987-05-22

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  TOPPER ROBERT JOSEPH ,  SHYU WILLIAM MING-JEN

IPC: H04N7/01 ,  H04N5/44 ,  H04N5/14

公开(公告)号：FR2600478A1

公开(公告)日：1987-12-24

申请号：FR8708661

申请日：1987-06-19

Applicant: RCA CORP

Inventor： TOPPER ROBERT JOSEPH ,  DISCHERT ROBERT ADAMS

IPC: H04N5/91 ,  H04N5/44 ,  H04N5/262 ,  H04N1/40

Abstract: Method and apparatus for producing a frozen television picture are disclosed. Successive fields of picture information are generated by an interpolator which is responsive to a video input signal. These successive fields are applied to the input of a first field store device. The video input signal is applied to the input of a second field store device so that the successive fields of the video input signal correspond in time to the successive fields generated by the interpolator. Lines from the respective field store devices are sequenced repetitively to form a video signal representing the frozen television picture. The interpolator generates fields which, when displayed with corresponding fields of the video input signal, minimizes motion-induced artifacts without unduly degrading vertical resolution.

公开(公告)号：FR2599578A1

公开(公告)日：1987-12-04

申请号：FR8707598

申请日：1987-05-29

Applicant: RCA CORP

Inventor： JOSE DAVID LEE ,  DISCHERT ROBERT ADAMS

IPC: H04N5/46 ,  H04N7/015 ,  H04N11/24 ,  H04N9/12

Abstract: A compressor compresses the edges of a wide screen image to provide a compressed wide screen video signal which may be displayed on a conventional 4:3 aspect ratio receiver with the compressed edge portions largely hidden from view because of receiver overscan. Complementary edge expansion restores the compressed signal to its original form for display by a wide screen receiver. The relative proportions of compression applied to the left and right edges of the wide screen images are varied to reduce the appearance of edge distortion in the compressed signal when displayed on a standard aspect ratio receiver and to reduce the appearance of loss of edge resolution in the expanded signal when displayed on a wide screen receiver.

公开(公告)号：IT1171089B

公开(公告)日：1987-06-10

申请号：IT2294783

申请日：1983-09-21

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  MEISE WILLIAM HARRY

IPC: H04L25/08 ,  H04B14/04 ,  H04L25/04 ,  H04N7/24 ,  H03K

Abstract: A digital signal coring circuit removes from a stream of incoming digital data words low-valued variations lying between upper and lower threshold reference values. Upper and lower threshold values are adjusted in response to the value of the outgoing cored digital data words so that such low-valued variations are removed over the entire range of values of the digital data words, and not merely around a baseline value.

公开(公告)号：IT1163017B

公开(公告)日：1987-04-08

申请号：IT2413182

申请日：1982-11-08

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  WALTER JAMES MORGAN

IPC: G06F1/035 ,  G06F7/52 ,  H03G3/00 ,  H04N

Abstract: A high speed multiplier, such as for video signals features cascaded ROMs. Each ROM is divided into pages, and each page contains different multiplying coefficients. Different significant bits of a control signal are applied to each ROM to select a page for processing the video signal.

公开(公告)号：DK413086A

公开(公告)日：1987-03-01

申请号：DK413086

申请日：1986-08-29

Applicant: RCA CORP

Inventor： JOSE DAVID LEE ,  TSOKAS SPYROS WILLIAM ,  DISCHERT ROBERT ADAMS

IPC: H04N5/46 ,  H04N20060101 ,  H04N3/223 ,  H04N5/222 ,  H04N7/00 ,  H04N7/01 ,  H04N7/015 ,  H04N9/64 ,  H04N11/00 ,  H04N11/06 ,  H04N11/20 ,  H04N5/00

Abstract: A video display installation for displaying a picture with a format ratio, for example 5:3 which is larger than the standard format ratio, for example 4:3 for pictures which are represented by normal television video signals, is arranged for displaying such a picture with standard format ratio without changing the width of the normal screen pattern of the display apparatus for large format ratio. This is achieved according to the invention by the display installation comprising a signal processing device 402', 1102, which in response to a video signal which is representative of a picture with standard format ratio, produces a processed video signal for the operation of the display device in large format ratio, which processed video signal has line periods which comprise not only a line synchronization interval and an active video interval but also a delay interval ("PAUSE"), the effect of which is to determine the position of the displayed picture in standard format ratio within the width of the screen pattern with large format ratio.

公开(公告)号：DK412986A

公开(公告)日：1987-03-01

申请号：DK412986

申请日：1986-08-29

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  MOLES WARREN HUGH ,  JOSE DAVID LEE ,  WALTER JAMES MORGAN

IPC: H04N7/00 ,  H04N5/44 ,  H04N11/00 ,  H04N11/24 ,  H04N5/00

Abstract: A wide aspect ratio television system includes memories (40,42,44) for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted (410, Figure 4) to compress edge regions of a wide aspect ratio input signal and read clock pulses are deleted (Figure 8) to restore the signal to its original aspect ratio. The pattern of deleted pulses is preferably altered (404) on a line-by-line basis to reduce visible artifacts of signal decimation. In dual mode receivers which may include provisions for controlling edge blanking or effecting edge interpolation, the pattern of deleted clock pulses may be selected as a function of the type of received signals.