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Class Information
Number: 348/448
Name: Television > Format conversion > Line doublers type (e.g., interlace to progressive idtv type)
Description: Subject matter wherein an input signal has N lines per vertical period and an output signal contains at least 2N lines per vertical period.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5237317 |
Image display apparatus |
Aug. 17, 1993 |
| 5237396 |
Scan format conversion apparatus |
Aug. 17, 1993 |
| 5204745 |
High-definition television signal processing system for transmitting and receiving a television signal in a manner compatible with the present system |
Apr. 20, 1993 |
| 5185663 |
Apparatus for processing predistorted first video signal and data reduced second video signal |
Feb. 9, 1993 |
| 5175619 |
Progressive scan television system using luminance low frequencies from previous field |
Dec. 29, 1992 |
| 5159451 |
Field memory expansible line doubler for television receiver |
Oct. 27, 1992 |
| 5151783 |
Digital television with enhancement |
Sep. 29, 1992 |
| 5115312 |
Double scanning circuit of ID-TV |
May. 19, 1992 |
| 5111297 |
Picture-in-picture double-scanning television receiver |
May. 5, 1992 |
| 5093721 |
Line interpolator with preservation of diagonal resolution |
Mar. 3, 1992 |
| 5067016 |
Progressive scan system with field-offset sampling |
Nov. 19, 1991 |
| 5051826 |
Vertical edge detection circuit for a television image motion adaptive progressive scanning conversion circuit |
Sep. 24, 1991 |
| 5049993 |
Format conversion preprocessing method and circuit |
Sep. 17, 1991 |
| 5049994 |
System for converting interlaced video signals to sequential video signals |
Sep. 17, 1991 |
| 5046164 |
Interstitial line generator for an interlace to non-interlace scan converter |
Sep. 3, 1991 |
| 5019903 |
Spatial interpolation between lines of a supersampled digital video signal in accordance with a gradient vector selected for maximum matching of blocks of samples which are offset in opposite |
May. 28, 1991 |
| 5016103 |
Spatial scan converter with vertical detail enhancement |
May. 14, 1991 |
| 5014128 |
Video interface circuit for displaying capturing and mixing a live video image with computer graphics on a video monitor |
May. 7, 1991 |
| 5014119 |
Horizontal and vertical transition level enhancement within television system |
May. 7, 1991 |
| 4989092 |
Picture display device using scan direction transposition |
Jan. 29, 1991 |
| 4985764 |
Apparatus for detecting a pixel correlation and generating an interpolation signal for a digital television signal |
Jan. 15, 1991 |
| 4982280 |
Motion sequence pattern detector for video |
Jan. 1, 1991 |
| 4979041 |
High definition television system |
Dec. 18, 1990 |
| 4959715 |
Method and apparatus for converting an interlaced television transmission to a sequential display using maximum likelihood estimation |
Sep. 25, 1990 |
| 4941045 |
Method and apparatus for improving vertical definition of a television signal by scan conversion |
Jul. 10, 1990 |
| 4937667 |
Method and apparatus for processing picture signals having interlaced field scanning |
Jun. 26, 1990 |
| 4935815 |
Scanconverter system with superimposing apparatus |
Jun. 19, 1990 |
| 4916541 |
Picture processor |
Apr. 10, 1990 |
| 4901148 |
Data processing device |
Feb. 13, 1990 |
| 4881125 |
Progressive scan display of video derived from film |
Nov. 14, 1989 |
| 4868655 |
Method and apparatus for processing picture signals having interlaced field scanning |
Sep. 19, 1989 |
| 4868656 |
Method and apparatus for reducing visibility of scanning lines in television picture |
Sep. 19, 1989 |
| 4866519 |
Method and apparatus for increasing the vertical definition of a transmitted television signal |
Sep. 12, 1989 |
| 4831435 |
Adaptive scanning line converting circuit for a television receiver |
May. 16, 1989 |
| 4825288 |
Method and apparatus for processing video signals |
Apr. 25, 1989 |
| 4814873 |
Method and apparatus for converting an image signal |
Mar. 21, 1989 |
| 4811094 |
Video signal processing device |
Mar. 7, 1989 |
| 4800436 |
Television system with improved temporal resolution on display of a television signal |
Jan. 24, 1989 |
| 4800433 |
Progressive scanning conversion system for television image display apparatus |
Jan. 24, 1989 |
| 4789893 |
Interpolating lines of video signals |
Dec. 6, 1988 |
| 4761686 |
TV receiver having freeze field display |
Aug. 2, 1988 |
| 4750039 |
Circuitry for processing a field of video information to develop two compressed fields |
Jun. 7, 1988 |
| 4733300 |
Contour signal correction circuit for television receiver |
Mar. 22, 1988 |
| 4733299 |
Method and apparatus for generating progressively scanned television information |
Mar. 22, 1988 |
| 4730216 |
Raster distortion correction circuit |
Mar. 8, 1988 |
| 4723163 |
Adaptive line interpolation for progressive scan displays |
Feb. 2, 1988 |
| 4720745 |
Method and apparatus for enhancing video displays |
Jan. 19, 1988 |
| 4701800 |
Scanning line position control system for shifting the position of scanning lines to improve photographic reproduction quality |
Oct. 20, 1987 |
| 4698675 |
Progressive scan display system having intra-field and inter-field processing modes |
Oct. 6, 1987 |
| 4698674 |
Interlace/non-interlace data converter |
Oct. 6, 1987 |
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