Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 348/607
Name: Television > Image signal processing circuitry specific to television > Noise or undesired signal reduction
Description: Subject matter including specific circuitry for the elimination of unwanted signals generated in the system, or by the transmission medium.










Sub-classes under this class:

Class Number Class Name Patents
348/615 Blackspot or shading correction (e.g., corrects for fixed pattern defects) 124
348/616 Dropout compensator (e.g., replacement type) 147
348/624 For color television 170
348/618 For removal of low amplitude random noise (e.g., variable bandwidth) 110
348/614 Ghost elimination (e.g., multipath) 335
348/608 Processing at encoder or transmitter (e.g., pre-correction) 156


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
5262857 Still-image video signal processing circuit Nov. 16, 1993
5260792 AGC circuit with 60 hertz hum compensation Nov. 9, 1993
5260793 Receiver post coder selection circuit Nov. 9, 1993
5258838 HDTV transmission system with reduced NTSC co-channel interference Nov. 2, 1993
5257105 Display driving method and apparatus with noise signal processing Oct. 26, 1993
5255078 Impulse noise detector for a video signal receiver Oct. 19, 1993
5251033 D.C. responsive equalization for television transmission channel irregularities Oct. 5, 1993
5249064 Noise canceller for use in a magnetic reproducing apparatus Sep. 28, 1993
5247362 Adaptive noise reduction apparatus using motion detection signal Sep. 21, 1993
5247363 Error concealment apparatus for HDTV receivers Sep. 21, 1993
5243427 Contour correction apparatus and contour correction method Sep. 7, 1993
5243428 Method and apparatus for concealing errors in a digital television Sep. 7, 1993
5243429 Combined image producing apparatus Sep. 7, 1993
5241370 Methods and apparatus for reducing the color noise of a television signal using a limiter with transfer function Aug. 31, 1993
5241386 Video signal gradation corrector providing smooth correction while avoiding oscillation of a corrected output luminance signal due to noise and achieving fast response to sudden video scene ch Aug. 31, 1993
5241387 Noise-reducing filter apparatus for decoded digital video signal Aug. 31, 1993
5241388 Video signal filter method and circuit Aug. 31, 1993
5237402 Digital image processing circuitry Aug. 17, 1993
5237413 Motion filter for digital television system Aug. 17, 1993
5237524 Method of low-pass filtering and arrangement for performing said method Aug. 17, 1993
5233424 Amplifier circuit to prevent video "buzzing" sound caused by a turning round of video signal into power source Aug. 3, 1993
5231477 Comb filter Jul. 27, 1993
5227869 Method for correcting contour of image Jul. 13, 1993
5225907 Television signal scan conversion system with reduced noise sensitivity Jul. 6, 1993
5223947 Noise reduction system for a video recorder Jun. 29, 1993
5222035 Digital filter circuit Jun. 22, 1993
5220424 Circuit for image signal transmission and reception by adaptive modulation and a method therefor Jun. 15, 1993
5216507 Waveform distortion removing apparatus Jun. 1, 1993
5214510 Adaptive digital aperture compensation and noise cancel circuit May. 25, 1993
5210608 Method for the correction of television signals at transmission, and implementation device May. 11, 1993
5200824 Luminance signal noise suppressor Apr. 6, 1993
5184228 Recording circuit for mirror mother tape Feb. 2, 1993
5181100 Digital video processing system with mixing prefilter Jan. 19, 1993
5177601 Apparatus for selectively dampening noises contained in Y signal for a video signal processing system Jan. 5, 1993
5177611 Method and apparatus for canceling quadrature distortion as for video signals having in-phase and quadrature phase components Jan. 5, 1993
5172232 Method and apparatus for communication channel identification and signal restoration Dec. 15, 1992
5170260 Selective deghosting of plural GCR-containing video signals Dec. 8, 1992
5166794 Drop out compensating circuit with interpolation of proximate pixel signals Nov. 24, 1992
5162900 Co-channel interference filter for television receiver Nov. 10, 1992
5161017 Ghost cancellation circuit Nov. 3, 1992
5161018 Noise reduction system for color television signal Nov. 3, 1992
5159442 Color signal processing apparatus Oct. 27, 1992
5151785 HDTV transmission system with reduced susceptibility to NTSC cochannel interference Sep. 29, 1992
5146329 Apparatus and method for reducing line flicker in a television picture Sep. 8, 1992
5144414 Ghost cancelling device with waveform checking circuit Sep. 1, 1992
5144434 Video signal processing device using look-up table Sep. 1, 1992
5144435 Noise immunity in N signals Sep. 1, 1992
5140424 Image signal processing apparatus with noise reduction Aug. 18, 1992
5138453 Ghost cancelling circuit having filter controlled by variable limiter Aug. 11, 1992
5136385 Adaptive vertical gray scale filter for television scan converter Aug. 4, 1992

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next










 
 
  Recently Added Patents
Light emitting device
Use of a high-oleic and high-tocol diet in combination with a non-tocol antioxidant for improving animal meat quality
Plants and seeds of hybrid corn variety CH514730
Acoustic measuring instrument
Leaky wave mode solar receiver
Packet communication system and packet communication method, and node and user device
Method and apparatus for producing homogeneous magnetic fields
  Randomly Featured Patents
Optical scanning device, optical scanning method, program, recording medium, and image forming apparatus
Radial pressure flange seal
Thermotoga maritima mannitol dehydrogenase
Solvent soluble fluorine-containing polymer, coating composition containing the same and coating process thereof
Method of making bread from dough and cutting means for use therewith
Integrated process for whole crude deasphalting and asphaltene upgrading
Ophthalomologic apparatus
Image forming device
Verbena plant named `Carwi`
Incubation station for test sample cards