公开(公告)号：FR2545308A1

公开(公告)日：1984-11-02

申请号：FR8409144

申请日：1984-06-12

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  FLORY ROBERT EARL

IPC: H04N9/81 ,  H04N9/80 ,  H04N9/825 ,  H04N9/86 ,  H04N11/12 ,  H04N9/493

Abstract: An improved transmission arrangement for a color television signal includes a time-division multiplexing apparatus for alternately presenting for transmission through a single channel baseband signals defining the chrominance information of the television signal. In order to provide improved resolution, a store is coupled to the signal source for storing at a writing rate a first of the baseband components during the time at which it is generated. A read generator is coupled to the store for reading the stored baseband component at a higher data rate than that at which it was generated. The baseband component is transmitted through the single channel at the higher data rate.

公开(公告)号：GB2136243A

公开(公告)日：1984-09-12

申请号：GB8400146

申请日：1984-01-05

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  FLORY ROBERT EARL

IPC: H04N9/81 ,  H04N9/80 ,  H04N9/825 ,  H04N9/86 ,  H04N11/12 ,  H04N9/491

Abstract: Each line of luminance information (Y) is recorded in a first track (Y) on a magnetic tape (620). Each corresponding line of chrominance information comprises two chrominance components (I, Q), which are time compressed in a compressor (20). The compressor includes switching means controlled to apply both components (I, Q) of each line to a second track (I, Q) on the tape (620). In this way cross-modulation of the chrominance signals is reduced, and vertical resolution of color is maintained.

公开(公告)号：DE3339029A1

公开(公告)日：1984-05-03

申请号：DE3339029

申请日：1983-10-27

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  WILLIAMS JR JAMES JEHU

IPC: G06F7/53 ,  G06F1/035 ,  G06F7/52 ,  G06F7/523 ,  G06F17/16 ,  H04N9/67 ,  H04N9/52 ,  H04N9/535

Abstract: A matrix for digital video signals separates each coefficient into a binary part and a remainder. The binary part can be implemented very simply by a hardwired right shift. The remainder can be implemented using a ROM. Less ROM memory space is required than for implementing the entire coefficient in a ROM.

公开(公告)号：AU1919783A

公开(公告)日：1984-03-29

申请号：AU1919783

申请日：1983-09-16

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  MEISE WILLIAM HARRY

IPC: H04L25/08 ,  H04B14/04 ,  H04L25/04 ,  H04N7/24 ,  H03H17/00 ,  H04B1/66

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：FR2516330A1

公开(公告)日：1983-05-13

申请号：FR8218708

申请日：1982-11-08

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  WALTER JAMES MORGAN

IPC: G06F1/035 ,  G06F7/52 ,  H03G3/00 ,  H04N5/14

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：GB2108354A

公开(公告)日：1983-05-11

申请号：GB8229791

申请日：1982-10-19

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  POWERS KERNS HARRINGTON

IPC: H04N11/20 ,  H04N7/01 ,  H04N7/015 ,  H04N11/24 ,  H04N5/02

公开(公告)号：GB2107151A

公开(公告)日：1983-04-20

申请号：GB8221308

申请日：1982-07-23

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  OAKLEY CHARLES BURKHARDT

IPC: H04N7/015 ,  H04N7/08 ,  H04N7/12 ,  H04N11/12 ,  H04N11/24 ,  H04N9/32

Abstract: A television arrangement generates signals from independent pairs of adjacent lines. The signals are separately summed and differenced to produce S and DELTA signals. The S signal is representative of the luminance of a scan between the original scans, and the DELTA represents vertical resolution. The signals are transmitted to a monitor for generating a high-vertical-resolution picture. Where the display is a color TV receiver, the DELTA signal may be buried within the chroma channel by frequency interleaving with the DELTA signal occuring only in locations representing high-frequency vertical information. The buried DELTA signal is invisible on a conventional receiver. Other independent data may be coupled through the chroma channel by frequency interleaving.

公开(公告)号：DE3227473A1

公开(公告)日：1983-02-10

申请号：DE3227473

申请日：1982-07-22

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS

IPC: H03M7/02 ,  G06F1/03 ,  G06F5/00 ,  H04N5/14 ,  H04N7/12 ,  G11C17/00 ,  G06F13/06 ,  H04N5/16 ,  H04N5/20 ,  H04N9/53 ,  H04N9/535 ,  H03H11/24

Abstract: A digital signal processor uses a RAM for signal processing. This allows the transfer function to be easily changed by either hardwired circuitry or a microprocessor. Two RAMs per channel can be used, one processing the signal, while the other has its transfer function changed. The operations of the RAMs can be changed during a portion of the input signal, e.g. blanking times, when the switch over is not objectionable.

公开(公告)号：FR2510279A1

公开(公告)日：1983-01-28

申请号：FR8212828

申请日：1982-07-22

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS

IPC: H03M7/02 ,  G06F1/03 ,  G06F5/00 ,  H04N5/14 ,  H04N7/12 ,  G06F7/00

Abstract: A digital signal processor uses a RAM for signal processing. This allows the transfer function to be easily changed by either hardwired circuitry or a microprocessor. Two RAMs per channel can be used, one processing the signal, while the other has its transfer function changed. The operations of the RAMs can be changed during a portion of the input signal, e.g. blanking times, when the switch over is not objectionable.

公开(公告)号：DE3107032A1

公开(公告)日：1981-12-17

申请号：DE3107032

申请日：1981-02-25

Applicant: RCA CORP

Inventor： DISCHERT ROBERT ADAMS ,  FLORY ROBERT EARL

IPC: H04N9/80 ,  H04N9/81 ,  H04N9/825 ,  H04N9/86 ,  H04N11/12 ,  H04N9/32 ,  H04N9/491

Abstract: An improved transmission arrangement for a color television signal includes a time-division multiplexing apparatus for alternately presenting for transmission through a single channel baseband signals defining the chrominance information of the television signal. In order to provide improved resolution, a store is coupled to the signal source for storing at a writing rate a first of the baseband components during the time at which it is generated. A read generator is coupled to the store for reading the stored baseband component at a higher data rate than that at which it was generated. The baseband component is transmitted through the single channel at the higher data rate.