Class 348/454 - PAL to NTSC or vice versa

Subclass of Class 348 - Television
Definition: Subject matter wherein a chrominance signal having the phase
No. of patents: 34
Last issue date: 06/14/2011

Number	Title	Issue Date
7961254	Method, system and computer-readable medium for detecting pulldown sequence from input interlaced images device A 2:3 pulldown sequence detecting system includes a history data table that stores a correspondence between each input field and a determination result of whether each input field is a repeated field and a threshold value table that stores threshold values. The syst...	06/14/2011
7206025	Device and method for converting format in digital TV receiver Device and method for converting a format of a video signal in a digital TV receiver is provided. Format conversion can be carried out at one chip of a format converting device, inclusive of conversion of resolution, frame rate, scanning method, aspect ratio, color ...	04/17/2007
7072390	Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen...	07/04/2006
6999057	Timing of fields of video An apparatus and method to delay a field of video by one row in a two field frame to reduce DC build-up or stick caused by textual image. ...	02/14/2006
6947060	Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance...	09/20/2005
6836294	Method of decreasing delay through frame based format converters An apparatus converts an input video signal having a first format into an output video signal having a second format. A formatter receives the first video signal and divides each field or frame into an active video top and bottom half. Two format converters receive ...	12/28/2004
6823129	Scaleable resolution motion image recording and storage system A system for scaling resolution of an input stream includes an input for receiving the image input stream which passes the image input stream to a frame buffer. The frame buffer holds one or more image frames such that a router can decorrelate the image input stream...	11/23/2004
6784941	Digital camera with video input A digital camera with video input is disclosed. An image sensor is provided to capture an image and convert the captured image into R/G/B image signals the are processed by a video signal processing unit for being converted into pixel data having a first format. A T...	08/31/2004
6727958	Method and apparatus for displaying resized pictures on an interlaced target display system In a method and apparatus for displaying resized pictures on an interlaced target display system, the contents of an input video source are initially read and decoded to obtain original input picture data and title format information that indicates scan format of th...	04/27/2004
6636187	Display and method of driving the display capable of reducing current and power consumption without deteriorating quality of displayed images A display has a panel, and first and second electrodes. The first and second electrodes define a matrix of cells on the panel. The second electrodes, which correspond to lines of the cells, are scanned to select the cell lines one by one. The first electr...	10/21/2003
6445419	Image processing apparatus An image processing apparatus includes a decoding circuit block decoding a coded image input signal specified by NTSC system with a frame rate of the NTSC system and writing a decoded image signal in an image memory as image data, and a display-image prod...	09/03/2002
6172713	Color television system determination circuit A color system determination circuit for use with an input video signal having a frequency component is disclosed. The circuit includes a color trap filter for attenuating the frequency component in the input video signal with the color trap filter provid...	01/09/2001
6154604	Signal processor for converting playback signal in NTSC standards to video signal used in PAL system and method of signal processing used therein A video signal processor includes a decoder supplied with a playback signal formatted in accordance with the standards of National Television System Committee and producing a digital video signal with a vertical synchronous frequency and a horizontal sync...	11/28/2000
5825435	Color cathrode ray tube and display device By selecting the number of apertures per vertical row in the shadow mask of a color cathode ray tube to be in the range between 615 and 650, such a cathode ray tube can be used both in a PAL, an NTSC system and a MUSE system without the occurrence of dist...	10/20/1998
5808688	Method and apparatus for interpolating pixels for format conversion An interpolation method and apparatus for converting pixels according to image formats, prevents deterioration of picture quality by performing a bilinear conversion which uses a larger number of pixels than does the conventional interpolation method whic...	09/15/1998
5771074	Method of interframe interpolation of color difference signals, and circuit arrangement for performing said method To avoid color defects in the motion-compensated luminance signal, which defects occur in non-motion-compensative time-interpolation of the color signal, a method includes the steps of generating a second color difference signal from a first color differe...	06/23/1998
5640209	NTSC/PAL video signal conversion apparatus employing ITU-R BT.601 video signal An NTSC/PAL video signal conversion apparatus employing a ITU-R BT.601 video signal, comprising a timing reference signal decoder for detecting a timing reference signal from external input data in response to an external clock signal, a counting circuit ...	06/17/1997
5404169	Method and apparatus for converting scanning line of a video signal receiver A scanning line converting apparatus for converting between NTSC and PAL formats includes a plurality of line memories, an arithmetic circuit and a picture memory. Switches in the lines connecting these elements permits the order of connection to be shift...	04/04/1995
5379072	Digital video signal resolution converting apparatus using an average of blocks of a training signal A digital video signal converting apparatus for converting a first digital video signal having a first resolution to a second digital video signal having a second resolution higher than the first resolution, comprises; block segmentation circuit for conve...	01/03/1995
5325179	Circuitry and method for converting 50 Hz, 312.5 line video composite signals into and from 60 Hz, 262.5 line video composite signals The system for converting a 50 Hz, 312.5 lines per field video composite input signal into a 60 Hz, 262.5 lines per field video composite output signal includes an A/D converter for converting the entire video input signal into a digital video composite s...	06/28/1994
5309224	Apparatus for converting a television signal of a first television system into a television signal of a second television system employing a digital chrominance signal processing circuit A color television system conversion apparatus converts a television signal of a first television system into a television signal of a second television system by converting the carrier frequency of the chrominance signal of the first television system in...	05/03/1994
5216496	Digital color television camera apparatus for selectively outputting component or composite PAL/NTSC signals Digital color television camera apparatus including an encoder for selectively producing either a digital component video signal or a digital composite video signal in accordance with first or second television standards (e.g. NTSC or PAL) by encoding dig...	06/01/1993
5021871	Conversion circuit for removing line-by-line phase alternation The present invention includes a delay line for memorizing the chrominance composite signal for one horizontal time period of a phase alternating input signal and a switch alternatingly applying a first phase composite signal for one line and then the del...	06/04/1991
4914523	Optical disk apparatus compatible with different television system standards An optical disk having radially discrete main and lead-in track areas in which there are respectively recorded color video information according to one of a plurality of TV systems, such as, NTSC and PAL systems, and code data including data identifying t...	04/03/1990
4573086	Color television signal converting circuit In a video disc player system, the NTSC color TV signal is recorded on the video disc, of which carrier chroma signal has been lowered to e.g., 1.52 MHz, due to limitations on the available frequency band within this system. To reproduce this recorded TV ...	02/25/1986
4568963	Signal converter circuit for color TV A signal converter for a color TV is used for converting a signal of the NTSC system, in which a subcarrier is quadrature-modulated by two chroma signal components, to a signal of the PAL system, in which a subcarrier is quadrature-modulated by two chroma...	02/04/1986
4567507	Color television signal conversion device Color TV signal data picked up from an NTSC video disc is separated by a separation filter into a first chrominance signal (1.52 MHz) and a luminance signal. In this case, the rotational frequency of the video disc is set such that a horizontal line frequ...	01/28/1986
4466022	Color video signal reproducing apparatus which transforms the recorded signal of one signal format into signals of another format upon reproduction A color video signal reproducing apparatus comprises a reproducing circuit for picking up and reproducing a recorded signal from a recording medium in which a carrier chrominance signal and a color burst signal within a PAL system color video signal are c...	08/14/1984
4346397	Apparatus for reproducing a video signal of one system with conversion to a video signal of another system A reproducing apparatus reproduces a video signal of a certain system having a field frequency F1 and a number N1 of horizontal scanning lines within one field period which has been recorded on a magnetic tape travelling at a speed S1 along plurality trac...	08/24/1982
4314273	Chrominance transcoder A transcoder useful in a video disc player includes a single multiplier in a chrominance signal path supplied with conversion signals which cause the multiplier to simultaneously frequency translate, conjugate and timebase correct a recovered chrominance ...	02/02/1982
4286283	Transcoder Samples of the amplitude of a quadrature amplitude modulated (QAM) subcarrier signal are taken at times corresponding to each axis crossing of each of the two quadrature related signal components. The polarity of alternate ones of the samples is inverted ...	08/25/1981
4283738	NTSC to PAL transcoder R-Y and B-Y color difference components of an NTSC format input signal are demodulated to base-band and a burst flag is added to the R-Y signal. Both the B-Y signal which includes the original base-band burst component and the R-Y signal with the added bu...	08/11/1981
4282545	Method and apparatus for playing back color video records through television receiver operating at a different color standard An NTSC color television signal picked up from a disc recording is mixed in such a way as to provide one sideband having the chrominance carrier at the PAL standard frequency and another sideband at a higher frequency which can be stepped down in a second...	08/04/1981
4229760	Video games color synthesis A color signal synthesis network suitable for use in a video games system includes a source of four mutually quadrature phased reference signals derived from a common source, a plurality of color signal transmission gates, and a plurality of resistive wei...	10/21/1980

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Class 348/454 - PAL to NTSC or vice versa