Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7995896 | System and user interface for a television receiver in a television program distribution system A television receiver includes a source of digital data comprising a plurality of data streams each representing one of a standard definition television signal and a high definition television signal and encoded in such a manner that it may be decoded at full resolu... | 08/09/2011 |
| 7657151 | Method and system for displaying a series of recordable events A method and system for displaying identifiers for one or more series of recordable events is described. A system, such as the system of a digital video recorder, may receive a set of recordable events data, such as a listing of all television shows to be broadcast ... | 02/02/2010 |
| 7324742 | Video-signal processing apparatus and method, recording medium and program Apparatus to suppress image deterioration in a data, broadcast thereby providing a display with quality, wherein a video signal separated from a reception signal by a demultiplexer is outputted to a converter section through an MPEG decoder section. When the video s... | 01/29/2008 |
| 7231042 | Signal transmission apparatus and signal transmission method Copyright of contents to be transmitted may be protected for an analog signal produced by converting a digital signal representative of the contents. A signal transmission apparatus determines whether the contents are protected by copyright by detecting copyright pr... | 06/12/2007 |
| 7118241 | Clip type light emitter The present invention relates to a clip type light emitter, and in particular to a clip type light emitter capable of enhancing a visual field at night by detachably engaging a clip type light emitter to a leisure cap (including hat) generally used for a mountain cl... | 10/10/2006 |
| 7057995 | Digital data reproducing apparatus An apparatus has a plurality of rotary heads for reproducing digital data from a recording medium, and delays a reference signal phase-locked with the rotary heads on the basis of the detection output of predetermined reference data in the reproduced digital data, t... | 06/06/2006 |
| 6978080 | Video switcher A video switching apparatus in which an operating mode (recording/reproduction) of a recording/reproducing apparatus is discriminated from a video output signal of the recording/reproducing apparatus by recording/reproduction detecting portion, thereby enabling an a... | 12/20/2005 |
| 6925244 | Apparatus for recording/reproducing high resolution video signal A video signal recording/reproducing apparatus for recording/reproducing a high resolution video signal wherein the video resolution is enhanced by shifting a carrier frequency to a higher band in frequency modulation in a VCR's video signal recording mode, and by d... | 08/02/2005 |
| 6909751 | Device jointly implementing a post-processing and a decoding of data The present invention relates to a device for processing blocks of coded data included in a sequence of coded digital images (ES) according to a block-based coding technique, said device comprising a post-processing circuit DFD (33). Such a device effectively... | 06/21/2005 |
| 6901210 | Multi-session disc having a DVD application session, and a recording and/or reproducing apparatus and method thereof A multi-session disc having a digital versatile disc (DVD) application session, a recording/reproducing apparatus, and a recording/reproducing method, are provided. In this multi-session disc, which has a compact disc read only memory (CD-ROM) session, a lead-in are... | 05/31/2005 |
| 6895173 | Combined DVD/CD data processor A combined DVD/CD (Digital Video Disk/Compact Disk) data processor used in a DVD/CD player. The DVD/CD data processor includes a PLL (Phase Locked Loop) to receive a pulse stream input to generate a PLL clock; a frame/ID synchronization detector to latch the pulse s... | 05/17/2005 |
| 6879775 | Optical disc playback apparatus In an optical disc playback apparatus capable of appropriately setting a font resolution of an on-screen message depending on a display resolution of data to be reproduced from an optical disc, a reader 12, 13, 14, 15 reads record data Si from a recording sur... | 04/12/2005 |
| 6865340 | CD-type disc in which a DVD application is recorded on a physical layer of the CD-type disc, and a recording/reproducing apparatus and method thereof A disc in which a digital versatile disc (DVD) application is recorded in a physical layer of the disc, a recording/reproducing apparatus, and a recording/reproducing method are provided. In the disc, a lead-in area, a lead-out area and a user area, each having a co... | 03/08/2005 |
| 6865339 | Digital video and data recorder A “pause and resume” function and a “channel change” function for recording and playing interframe compressed audiovideo data, particularly MPEG data. The invention includes a digital track format and a method for recording one or more sessions from one or m... | 03/08/2005 |
| 6847781 | Digital signal recording apparatus and recording medium The present invention provides a digital signal recording apparatus and a recording medium for recording digital compressed picture information on magnetic tape, and specifically the structure of the recording apparatus that suitably records picture trick-play data ... | 01/25/2005 |
| 6807363 | Digital moving picture data player system having a time-based access list The present invention relates to an image reproducing device, and an image recording/reproducing device, which reproduce encoded image data. With these devices, special reproduction such as reproduction at an arbitrary speed-multiple, etc., and special recording/rep... | 10/19/2004 |
| 6804457 | Digital video signal recorder/reproducer and transmitter When recording/reproducing a digital video signal having 1080 effective lines, an MPEG stream can be extracted on the reproducing side with a simple structure and without causing serious deterioration of the image quality, and without wastefully consuming the capaci... | 10/12/2004 |
| 6639602 | Image data demodulation apparatus and method thereof An image data demodulation apparatus comprises an input control portion for turning ON/OFF input of an encoded image data corresponding to a control signal, a detecting circuit for detecting a sequence header from the encoded image data supplied therefrom... | 10/28/2003 |
| 6633725 | Layered coding of image data using separate data storage tracks on a storage medium A source image is encoded into a base layer and an enhancement layer. The base layer represents a standard definition portion of the source image and the enhancement layer represents a high-resolution portion of the source image. The base layer is stored ... | 10/14/2003 |
| 6177961 | Television system with display of VCR mode A digital video recording/reproducing system in which the operating state of the recording/reproducing device is transmitted to the television system separately from the digital video signal. The television system uses this information to generate an on-s... | 01/23/2001 |
| 6075887 | High definition color modification There is provided a method of applying colour correction to a video image obtained by scanning photographic film frames, in which each frame on the film is scanned a plurality of times to produce a plurality of constituent frames each containing only part... | 06/13/2000 |
| 6072594 | Information signal reproducing apparatus with noise processing An information signal recording apparatus for recording an information signal having a predetermined frequency band onto a recording medium, which comprises signal separating means for receiving said information signal and for separating the received info... | 06/06/2000 |
| 5991494 | Digital image data processing apparatus and method A digital image data processing apparatus has a preprocessing apparatus for preprocessing the digital video data before recording-and a post-processing apparatus for post-processing the digital video data after recording. The preprocessor receives a main ... | 11/23/1999 |
| 5909532 | Apparatus and method for recording and reproducing a television signal The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The syste... | 06/01/1999 |
| 5905839 | Digital video signal recording/reproducing apparatus for storing a vertical resolution signal The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The syste... | 05/18/1999 |
| 5880941 | Digital video signal recording/reproducing apparatus for storing a vertical resolution signal The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The syste... | 03/09/1999 |
| 5875061 | Method and apparatus for the recording of signals Method and apparatus for recording a digital signal wherein the recording rate is higher than the available data rate. In such a situation, the available excess recording capability is used for extending the playing time by the existing storage capacity o... | 02/23/1999 |
| 5848221 | Recording and reproduction of video signal A video signal recording apparatus includes a first device for processing a first time segment of a video signal in response to a second time segment of the video signal. The first time segment relates to a first frame or field while the second time segme... | 12/08/1998 |
| 5832169 | Apparatus and method for recording and reproducing a television signal The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The syste... | 11/03/1998 |
| 5778064 | Apparatus and method for processing a high definition video signal Digital video tape recorder which reproduces from a record medium a digital high definition video signal having copy-prevention data therein, extracts the copy-prevention data from the reproduced signal, generates from the extracted digital copy-preventio... | 07/07/1998 |
| 5742727 | Apparatus and method for recording and reproducing a television signal The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The syste... | 04/21/1998 |
| 5715351 | Double deck video cassette tape recorder with video signal processing circuit An video signal processing circuit of a double deck VCR capable of preventing a deterioration of picture when dubbing, which includes a reproducing video cassette tape recorder and a recording video cassette tape recorder disposed in a single body, wherei... | 02/03/1998 |
| 5657309 | Video disc recording and playback system with two recording areas to record an information signal and a reference signal A disc recording device for recording a first information signal and a second information signal, e.g. a pilot signal, on a disc-shaped recording medium comprises an optical pick-up having first and second laser diodes for recording the first and second i... | 08/12/1997 |
| 5587802 | Extended definition video signal converter for use with a video recorder A converter with which an extended definition (ED) video signal may be converted into a signal that may be recorded by a video recorder and with which a signal read out by a video reorder may be converted to an ED video signal. The ED video signal include... | 12/24/1996 |
| 5583648 | Picture signal recording/reproducing method and apparatus for recording/reproducing a high-definition picture signal and a normal picture signal Whether or not a luminance signal or an HD input signal is input to a picture signal recording apparatus is detected, and a recording mode is determined according to the detection of the luminance signal in a recording mode determining unit. In cases wher... | 12/10/1996 |
| 5561467 | Receiver and channel compatible encoding/decoding system for high definition video High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modu... | 10/01/1996 |
| 5550640 | Digital video signal recording and reproducing apparatus and method for setting a number of compression blocks according to different operational modes A digital video signal recording and reproducing apparatus and method wherein a basic block is constituted by a plurality of pixels of video signals. A picture data compressing unit effects data compression of the video signals so that a compression data ... | 08/27/1996 |
| 5442455 | Two-sided video disc having high definition television video signals recorded thereon and a method of manufacturing the same A two-side video disc is manufactured by laminating a top side face disc having a HDTV video signal with red color signal component recorded and a back side face disc having a HDTV video signal with blue color signal component recorded at a position corre... | 08/15/1995 |
| 5317412 | Video tape recorder for recording and reproducing high-definition video signal and audio signal In a helical scan type magnetic recording/reproducing apparatus in which a magnetic tape is wound on a rotary cylinder through about 350° for recording/reproducing each of the component color video signals, two magnetic heads in a reverse azimuth relatio... | 05/31/1994 |
| 5303060 | Apparatus for recording and/or reproducing HDTV signals An HDTV signal (dot density: 2N dots/line) is converted into a luminance signal and a line sequential color signal, and the resulting signals are both subjected to vertical interpolation and vertical filtering to derive a sequential scanning luminance sig... | 04/12/1994 |
