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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 |
| 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 |
| 4684985 |
Signal converting method and circuit for television receiver |
Aug. 4, 1987 |
| 4683497 |
Television receiver for flicker-free reproduction of an interlaced video signal |
Jul. 28, 1987 |
| 4679084 |
Method and apparatus for freezing a television picture |
Jul. 7, 1987 |
| 4677482 |
Dual mode progressive scan system with automatic mode switching by image analysis |
Jun. 30, 1987 |
| 4677483 |
Interpolation filter with motion compensation |
Jun. 30, 1987 |
| 4673978 |
Progressive scan processor with plural frequency band interpolation |
Jun. 16, 1987 |
| 4658293 |
Scanning conversion method and scan converter unit employing the conversion method |
Apr. 14, 1987 |
| 4641188 |
Progressive scan display system employing line and frame memories |
Feb. 3, 1987 |
| 4636857 |
Scanning line interpolation circuit for television signal |
Jan. 13, 1987 |
| 4605962 |
Progressive scan television system with video compression exceeding display line rate |
Aug. 12, 1986 |
| 4603350 |
Interlaced digital video input filter/decimator and/or expander/interpolator filter |
Jul. 29, 1986 |
| 4593315 |
Progressive scan television receiver for non-standard signals |
Jun. 3, 1986 |
| 4580163 |
Progressive scan video processor having parallel organized memories and a single averaging circuit |
Apr. 1, 1986 |
| 4577225 |
Progressive scan video processor having common memories for video interpolation and speed-up |
Mar. 18, 1986 |
| 4573080 |
Progressive scan television receiver with adaptive memory addressing |
Feb. 25, 1986 |
| 4539592 |
Double-scanning non-interlace television receiver |
Sep. 3, 1985 |
| 4532546 |
Real time single frame memory for converting video interlaced formats |
Jul. 30, 1985 |
| 4509079 |
Interlace detector |
Apr. 2, 1985 |
| 4451848 |
Television receiver including a circuit for doubling line scanning frequency |
May. 29, 1984 |
| 4426661 |
Television receiver including a circuit for doubling line scanning frequency |
Jan. 17, 1984 |
| 4415931 |
Television display with doubled horizontal lines |
Nov. 15, 1983 |
| 4389668 |
High definition television system |
Jun. 21, 1983 |
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