Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8144245 | Method of determining a machine operation using virtual imaging A method of determining a machine for operating at an actual site includes establishing a three-dimensional geographical model representing the actual site, determining at least one operation characteristic relating to the operation of each of a set of machines in r... | 03/27/2012 |
| 7336302 | Frame memory device and method with subsampling and read-out of stored signals at lower resolution than that of received image signals A frame memory device is employed in a digital camera, for example, to output raster-scanned digital color image signals at lower resolution than that of original image signals. The order of sequentially received original raster-scanned digital color image signals i... | 02/26/2008 |
| 7248302 | Picture signal processing In a picture signal processing method, an analog picture signal (APS1, APS2) is processed (PSP) in dependence on a quality indication (QI1, Q12) relating to the analog picture signal (APS1, APS2) and received together with t... | 07/24/2007 |
| 7162098 | System and method for increasing temporal and spatial capacity of systems that amplitude quantize data prior to processing A system and method for collecting relatively high resolution amplitude data with a conventional sensing device from a signal source that is sampled at a relatively low characteristic scan resolution, and then generating relatively high scan resolution, relatively l... | 01/09/2007 |
| 6970508 | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks It is possible to produce a decoded image with a high image quality from data of the lowermost hierarchy obtained during hierarchical coding operation. An image of a first hierarchy equal to an original image is successively thinned in thinning units so that an imag... | 11/29/2005 |
| 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 |
| 6853683 | Regularized dequantizer for DCT-based transform coding A new dequantization scheme for DCT-based transform coding, such as JPEG, MPEG and H.26x, is disclosed. The new approach drastically reduces blocking artifacts without smoothing the decoded image. Most discrete cosine transform (DCT) based video coding suffers from ... | 02/08/2005 |
| 5838376 | Video coder/decoder which separately processes high and low frequencies In a predictive coding apparatus, an interframe/interfield predictive signal is generated in which low frequency components are depressed. A predictive error signal is generated on the basis of an input video signal and the interframe/interfield predictiv... | 11/17/1998 |
| 5523850 | Picture signal recording device having adaptive processing circuit for adding color signal and sub-sampled color signal in response to motion signal A picture signal recording device for recording color video signals having a color signal detection circuit detects the quantity of motion of chroma signals from an inter-frame difference between a color difference signal from a chroma recording processin... | 06/04/1996 |
| 5517245 | High efficiency encoding and/or decoding apparatus A high efficiency encoding device for compressing the input information by temporal/spatial sampling transmits the input information supplied at an input terminal 10 to a thinning sub-sampling unit 11 and to a normal equation generating unit 12a in a mode... | 05/14/1996 |
| 5450214 | Video signal processing device A video signal processing device is designed to input selectively a first video signal or a sub-sampled second video signal. These inputs are input to a common filter. The output of the filter is output after being sub-sampled, when the first video signal... | 09/12/1995 |
| 5327241 | Video signal processing apparatus for reducing aliasing interference In a video signal processing apparatus for restoring a signal which has been bandwidth-compressed by offset sub-sampling after restoring an image from sample points of a same field of a sub-sampled signal, a first adder performs an inter-field averaging p... | 07/05/1994 |
| 4891699 | Receiving system for band-compression image signal When the receiving system for a band-compression image signal receives a dropout signal representing a dropout portion of an image signal, an output of the third delay circuit of the temporal filter for motion detection processing, that is, motion informa... | 01/02/1990 |
| 4845561 | Field interleaving compatible high definition television transmission system In a system for transmitting and receiving a television signal via a transmission channel having at least a transmitting section and a receiving section, the transmitting section including a sampling circuit for sampling each field of the television signa... | 07/04/1989 |
| 4819086 | Multirecording method eliminating striped-pattern interference A multirecording method in which a multiplex sub-Nyquist-sampling video signal is multirecorded together with a predetermined signal, such as a pilot or audio signal, with no generation of striped-pattern interference in the reproduced picture. In accorda... | 04/04/1989 |
| 4488175 | DPCM Video signal processing technique with spatial subsampling When a DPCM encoded video signal is spatially subsampled in order to reduce the amount of information that must be transmitted, the values of nontransmitted picture elements (pels) must nevertheless be reconstructed at both transmitter and receiver. In ac... | 12/11/1984 |
| 4292652 | Method of receiving a video signal In receiving a narrow band video signal transmitted through a narrow band transmission line such as a telephone line, a sound tape recorder or the like, the narrow band video signal is first stored in memories and is then read out therefrom at a higher re... | 09/29/1981 |
| 4168509 | Method for transmitting and receiving compatible high resolution television pictures A method for transmitting and receiving high resolution television pictures is disclosed. Each frame of the pictures is comprised of scan lines having frequency components from 0 to fMAX where fMAX is ࣙ the bandwidth BW of the conv... | 09/18/1979 |
| 4064538 | Method and device for displaying a picture film via a video-disc A method and apparatus for displaying a picture film via a video-disc which consists in analyzing the pictures of the film on a plurality of interlaced fields which are successively recorded onto a video-disc. These fields are then read simultaneously on ... | 12/20/1977 |
