Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 4734799 | Apparatus for tracking magnetic head on rotary magnetic recording medium by envelope detection A tracking apparatus applicable to a rotatable magnetic recording medium which is provided with a plurality of discrete tracks thereon includes a head for sensing signals out of the tracks, a head transport mechanism for moving the head to a position on a... | 03/29/1988 |
| 4729040 | Tracking apparatus for playing back rotary magnetic recording medium Apparatus for playing back a rotary magnetic recording medium has a magnetic head for sensing color video signals provided by raster scanning out of a plurality of tracks, each of which is provided on the recording medium in such a locus that a beginning ... | 03/01/1988 |
| 4717968 | Video player with power-down capability A video player includes a playback head that repeatedly passes in contact with a circular track on a flexible magnetic disk in order to reproduce a still picture on a video display. By cycling the player into a special quiescent state after a certain inte... | 01/05/1988 |
| 4698702 | Playback apparatus for rotary recording medium Playback apparatus for a rotary recording medium includes a playback head for sensing signals from a plurality of tracks which are formed on a rotary recording medium in such a manner that the front end of recording operation continues to the last end the... | 10/06/1987 |
| 4688105 | Video recording system A video recording system enables self-service production of vended videocassette recordings to a user or customer, with user control of several features. Preferably the system includes forming a composite video picture with the user's image in combination... | 08/18/1987 |
| 4660096 | Dividing high-resolution-camera video signal response into sub-image blocks individually raster scanned A system for recording a high resolution still video image consists of a memory for storing the image. The memory is addressed so that portions of the high resolution image may be read out to form video sub-images corresponding to a conventional video for... | 04/21/1987 |
| 4617597 | Compatible color television with regenerable signals Novel means are disclosed for conditioning a standard color-television composite signal, such as the NTSC composite, so that pictorial information is represented according to Nyquist samples which are very coarsely quantized and therefore regenerable. Thi... | 10/14/1986 |
| 4613910 | Still picture to television signal conversion system A still picture to television signal conversion system for scanning a still picture to produce a video signal includes an image pickup device for scanning a still picture to form a video signal, which represents the still picture. A rotatable recording me... | 09/23/1986 |
| 4609949 | Magnetic disc reproducing apparatus A magnetic disc reproducing apparatus for reproducing analog or digital information signals selectively recorded in a plurality of tracks of a magnetic disc includes a transducer placed in transducing relation with the plurality of tracks for reproducing ... | 09/02/1986 |
| 4568966 | Compatible color television with regenerable signals Novel means are disclosed for conditioning a standard color-television composite signal, such as the NTSC composite, so that pictorial information is represented according to Nyquist samples which are very coarsely quantized and therefore regenerable. Thi... | 02/04/1986 |
| 4553175 | Method/apparatus for playback of color video still pictures from a magnetic disk Apparatus and method are disclosed for playing back a video signal representative of a still image. The video signal is recorded on a magnetic recording disk in the form of three separate signals on three respective tracks; a color component signal on a c... | 11/12/1985 |
| 4488182 | System for recording and reproducing time-division multiplexed digital audio and video signals Analog primary color video signals of a still-picture converted to luminance and color difference components and converted to digital samples. The digital samples of each video component are written into a respective memory at the sampling rate and retrie... | 12/11/1984 |
| 4485412 | Rotary recording medium reproducing apparatus capable of performing high-speed search operation A rotary recording medium reproducing apparatus comprises a transferring circuit for transferring a reproducing element for reproducing a rotary recording medium, along a radial direction of the rotary recording medium, where the transferring circuit tran... | 11/27/1984 |
| 4480270 | Audio/video signal recording method A method for recording video and audio information onto a recording medium which involves recording a carrier frequency signal, frequency modulated with composite color video information, and a subcarrier frequency signal, modulated with audio frequency i... | 10/30/1984 |
| 4392160 | Playback system for video disk having plural information tracks A video disc has first and second information tracks adjacently formed thereon, and first and second FM signals with different frequency bands are recorded on the first and second information tracks, respectively. A common stylus simultaneously traces the... | 07/05/1983 |
| 4386375 | Video disc player with multiple signal recovery transducers A video disc playback apparatus for recovering signal from disc records having radially aligned information fields is provided with multiple signal recovery transducers for interactive signal playback. The signal recovery transducers are independently tra... | 05/31/1983 |
| 4347527 | Video recording on disk and device for the repetitive reading of such a recording The invention relates to recordings in the form of disks and to the reading devices making it possible to repetitively read a still with its sound accompaniment. The invention relates to a recording where the video and audio data form interlaced blocks lo... | 08/31/1982 |
| 4272786 | Video disc playback apparatus with non-linear aperture correction In a video disc playback apparatus, a playback stylus is utilized for the recovery of information from prerecorded disc records. In one system, geometric variations are recorded on the surface of the record and are representative of recorded picture and s... | 06/09/1981 |
| 4188638 | Color television signal having color-difference signals alternating between two carriers A transmission system for a color television signal, in particular a system for recording on and reproducing from a record carrier. The chrominance signal is divided into two separate color signals, which in a line-sequentially alternating fashion are mod... | 02/12/1980 |
| 4175270 | Method and apparatus for recording and reproducing video The video or television signals are broken into numerous elements representing spaced portions of the video display screen along the line sweep, and imprints (electrical or optical) for each element are made in a path on a rotating medium which may be a d... | 11/20/1979 |
| 4107729 | Method and apparatus for reproducing signals from a rotating record medium and method and apparatus for making same A method of and apparatus for recovering information from a record medium of the type wherein the information is modulated onto a carrier and recorded in one portion of the record medium and the carrier is recorded in another portion of the record medium.... | 08/15/1978 |
| 4096514 | Playback circuit for a recorded three-line sequential color television signal In a playback circuit for a three-line sequential color television signal, which includes a memory presenting four outputs providing, respectively, the undelayed sequential signal and the sequential signal delayed by one, two and three horizontal picture ... | 06/20/1978 |
| 4068258 | Method for compressing then expanding a television signal The present invention relates to methods which make it possible to partially eliminate the redundancy in television signals. It consists in splitting the spectrum of the video signal into two parts, one containing the low frequencies, this being transmitt... | 01/10/1978 |
| 4057827 | Apparatus for reading color television signal from a disc-shaped record carrier An apparatus for reading a disc-shaped record carrier, which apparatus comprises provisions such as a command device, for reproducing the recorded information in a scanning sequence which differs from that during recording. In order to maintain the line-s... | 11/08/1977 |
| 4005474 | Recording apparatus and methods for a color picture/sound record Recording apparatus for use in the mastering of a color picture/sound disc includes a source of composite color video signals in which chrominance information appears as sideband components of a chrominance subcarrier interleaved with luminance signal com... | 01/25/1977 |
| 3974519 | Apparatus for reproducing a PAL color television signal which is recorded on a record carrier and drop out compensation A circuit for reproducing recorded PAL TV signals features a pair of mixers that produce signals of opposing phases. Thus the same picture can be repetitively viewed without losing the PAL phase alternation. Drop out compensation can be added.... | 08/10/1976 |
| 3969756 | Color-picture/multichannel-sound record and recording/playback apparatus and methods therefor Color picture information is recorded on a video disc together with multiple channels of sound information (e.g., a pair of stereo sound signal components). Each audio signal to be recorded modulates the frequency of a respectively different sound carrier... | 07/13/1976 |
| 3968513 | System for recording a color television signal with reduced bandwidth A color television system for the combined transmission of a luminance signal and a chrominance signal. The chrominance signal is added to a carrier as a frequency modulation, after which the modulated carrier is amplitude-modulated by the luminance signa... | 07/06/1976 |
