Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 5787005 | Method and apparatus for signal threshold adjustment that compensates for signal asymmetry A method and apparatus for signal threshold adjustment that compensates for signal asymmetry which utilizes an algorithm to detect each side of an asymmetric signal independently to ensure that the proper signal detection point is used on both the high an... | 07/28/1998 |
| 5745318 | Digital video tape reproducing apparatus for reproducing video signals from tracks in a magnetic tape having reproducing heads having widths the same as or different from that of the recording heads In a digital video tape recording and/or reproducing apparatus including a pair of rotary magnetic heads having a predetermined head width and gaps with mutually different azimuth angles which helically scan a magnetic tape as the tape is advanced in orde... | 04/28/1998 |
| 5731921 | Method and apparatus for determining and using head parameters in a hellical scan recorder Methods of calibrating a helical scan recorder include transporting a storage media past a drum at a controlled linear velocity and recording tracks on the media using a write head. During a read-after-write operation, servo signals recorded on the track;... | 03/24/1998 |
| 5712947 | Method of recording ID signals for retrieving images, method of retrieving images, and apparatus for reproducing recorded images On tape carrying a mixture of a static image recording portion and a dynamic image recording portion, ID (identification) signals are recorded to specify only a specific static image for retrieval. During image recording, the PP (Photo/Picture) ID signal ... | 01/27/1998 |
| 5703852 | Optical disk reproducing apparatus having a cosine equalizer with boosted frequency characteristics An optical disk apparatus has an optical pickup, a cosine equalizer having frequency characteristics including a boosting frequency for a frequency component which has a frequency that is about twice the frequency of an RF signal reproduced from recorded ... | 12/30/1997 |
| 5684919 | Recording apparatus for a video signal and a control information indicative of a control state of a video camera An apparatus for recording a video signal while forming a multiplicity of recording tracks in parallel on a tape-shaped recording medium, wherein camera information representing the operating state of a camera when shooting each picture is recorded in a p... | 11/04/1997 |
| 5675446 | Method of controlling magnetic disk unit based on version data A method of controlling a magnetic disk unit. The method controls the magnetic disk unit which comprises a disk enclosure part and a printed-circuit board part. The disk enclosure part includes at least one magnetic disk, at least one magnetic head and a ... | 10/07/1997 |
| 5668872 | Information processing method and system An information processing method and system in which coded or incomplete information is transmitted through a space or through a predetermined transmission line and is received by a user. A program or data needed to demodulate the information is read out ... | 09/16/1997 |
| 5659400 | Information signal recording device for recording main information signal with index signal for rapidly and accurately searching main information signal A signal recording apparatus is arranged to record main information in a first area provided in each of a multiplicity of parallel tracks formed on a tape-shaped recording medium, and an index signal in a second area of each of a predetermined number of c... | 08/19/1997 |
| 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 |
| 5650883 | Data recording apparatus having check-after-write function and reproduction apparatus and method for reproducing data recorded by the recording apparatus A recording apparatus has a check-after-write function for reproducing and checking the recorded state of a recorded track. When overwriting of data is started, an identification number to be stored in a track is set at a fixed value, and check-after-repr... | 07/22/1997 |
| 5644310 | Integrated audio decoder system and method of operation A data processing system (10) is disclosed which comprises a microprocessor host (12) coupled to a decoding system (14). A host interface block (18) receives a bit stream and passes bit stream on to a system decoder block (20). The system decoder block (2... | 07/01/1997 |
| 5638225 | Magnetic disc apparatus A magnetic disc apparatus using an electric filter for waveform equalization of a read signal is provided. The optimum parameters are set for every head and the writing and reading operations are executed on the basis of the optimum characteristics. At th... | 06/10/1997 |
| 5627692 | Recording and reproducing apparatus for reproducing time-base compressed signals dependent on the time-base compression implemented There is provided a recording/reproducing apparatus, e.g., digital video tape recorder, etc., applicable to a transmission system sufficiently utilizing communication capacity. The recording/reproducing apparatus comprises a recording element (e.g., rotar... | 05/06/1997 |
| 5625504 | Magnetic recording and reproducing system A time lapse magnetic recording/reproduction apparatus for recording and reproducing picture signals while intermittently thinning them out in a frame unit is used for monitoring and burglar-proofing in plants, shops, banks, etc. Recording picture informa... | 04/29/1997 |
| 5625503 | Magnetic recording and reproducing apparatus having means for discriminating performance of magnetic recording medium to achieve optimum recording and reproduction A magnetic recording and reproducing apparatus records a signal on a recording track of a magnetic recording medium in a recording mode and reproduces the signal from the recording track of the magnetic recording medium in a reproducing mode. The apparatu... | 04/29/1997 |
| 5625461 | Recording and reproducing apparatus A recording and reproducing apparatus is capable of editing video signals and audio signals recording additional information data for controlling the reproduction output level. The recording side includes an additional information data generating circuit,... | 04/29/1997 |
| 5623474 | Disk apparatus having automatic adjustment of adaptive filter equalization parameter using training pattern A training pattern which is used for a waveform equalization is preliminarily recorded on a disk medium and the waveform equalization to suppress an interference between bits of a read waveform by an adaptive type equalizer is performed. An error detector... | 04/22/1997 |
| 5619732 | Image manipulating system for controlling the selection of permissible recording time intervals An image manipulating system according to the present invention can perform interval recording for repeatedly recording supplied image information at predetermined time intervals. Herein, a limit value of recording time intervals designative depending on ... | 04/08/1997 |
| 5592300 | Method and apparatus for using programming signals for automatic time settings A method and device for automatic time setting utilizing broadcasting signal which can set the present time automatically utilizing broadcasting signals of teletext and video program system. The automatic time setting device includes a tuner and demodulat... | 01/07/1997 |
| 5589992 | Magnetic recording and reproducing apparatus for performing slow-motion reproduction with higher quality of image In a magnetic recording and reproducing apparatus for reproducing a video signal recorded on a video track of a magnetic tape by pair of magnetic heads arranged in a rotation drum so as to oppose to each other at an angle of 180 degrees, while rotating a ... | 12/31/1996 |
| 5585855 | Digital video signal coding circuit, digital signal decoding circuit A digital video signal coding circuit has a first DCT circuit for DCT converting a digital video signal with respect to frame and second DCT circuit for DCT converting the digital video signal with respect to fields which is used to reduce high frequency ... | 12/17/1996 |
| 5583654 | Digital video and audio signal recording and reproducing apparatus efficiently storing a variety of different accompanying video and audio information data A video tape recording apparatus records and reproduces digital video and audio signals in the form of coded signals that have a recording format which includes a video signal recording area for recording video data and its respective accompanying informa... | 12/10/1996 |
| 5579119 | Recording signal control apparatus capable of optimizing recording conditions for magnetic recording medium A plurality of test signals of different frequencies are recorded on a magnetic recording medium while gradually increasing or decreasing recording current, and the variation of the level of each of the replayed test signals and the variation of the recor... | 11/26/1996 |
| 5566379 | Economical recording and reproducing apparatus which performs real-time processing of digital audio data An audio signal recording and reproducing apparatus can perform realtime processing with a structure having a low cost. The audio signal recording and reproducing apparatus records a series of input audio signals as digital audio data, and reproduces and ... | 10/15/1996 |
| 5561565 | Magnetic tape recording and/or reproducing apparatus with detecting means A magnetic tape recording and/or reproducing apparatus comprises a tape-characteristic-information detecting circuit arranged to detect information on characteristics of a tape from a tape-characteristic-information recording area provided on the tape whi... | 10/01/1996 |
| 5561530 | Magnetic recording device with automatic media-test function A magnetic recording device records an input signal on a magnetic medium. Either when the magnetic medium is first inserted in the device, or just before recording of the input signal is to begin, the device determines whether a previously-recorded signal... | 10/01/1996 |
| 5559642 | Reproducing device used with a record carrier containing two sides recorded in opposite directions that determines the selection of particular read back characteristics Digital information recorded in a track (Ta.i) on a tape-like magnetic record carrier (20) can be read out again when the record carrier is transported in a specific direction. The transport direction of the record carrier when the information ... | 09/24/1996 |
| 5557423 | Synchronization of digital video with digital audio A method of synchronizing digitized audio information and digitized picture information establishes a reference time base based on timecodes included with the audio and picture information. The reference time base may be used to synchronize output between... | 09/17/1996 |
| 5550682 | Mode discrimination circuit for an image recording/playback system utilizing peak detectors A circuit for detecting the recording/playback mode of a system, e.g., a video tape recorder (VTR), for recording/playing back an image signal on/from a recording medium, using first and second input signals derived from pilot signals also recorded on the... | 08/27/1996 |
| 5539587 | Digital signal recording apparatus having sampling rate converter In a digital signal recording apparatus, when a sampling frequency of a digital signal inputted thereto does not correspond to a predetermined sampling frequency set for the digital signal recording apparatus, the sampling frequency of the input digital s... | 07/23/1996 |
| 5523855 | Discriminating device for automatically discriminating between recorded video signal reproduction modes A mode discriminating device which discriminates whether a normal mode or a high-band mode is used to reproduce a recorded video signal. If the reproduction level is too low and/or the noise level is too high, a mute signal is used in determining the disc... | 06/04/1996 |
| 5523896 | Variable speed reproducing apparatus for a digital video cassette recorder A variable speed reproducing apparatus for a digital videocassette recorder which outputs data having an improved C/N ratio. A gate buffer receives a reproduction signal which has been amplified by a pre-amplifier and outputs only that portion of the repr... | 06/04/1996 |
| 5506733 | Apparatus for recording and reproducing digital and analog video signals using two analog record/reproduce heads and two digital record/reproduce heads, respectively An apparatus for recording and reproducing digital/analog video signals including a single head drum attached with heads for processing analog video signals and heads for processing digital video signals, and switches performing switching operations on th... | 04/09/1996 |
| 5500775 | Data recording and reproducing apparatus A data recording and reproducing apparatus of a helical scanning system includes a unit for recording and reproducing an information signal in an oblique information track on a magnetic tape by a rotary magnetic head and a unit for recording and reproduci... | 03/19/1996 |
| 5499148 | Digital video tape reproducing apparatus compatible with tapes having a track width different from a rotary magnetic head width In a digital video tape recording and/or reproducing apparatus including a pair of rotary magnetic heads having a predetermined head width and gaps with mutually different azimuth angles which helically scan a magnetic tape as the tape is advanced in orde... | 03/12/1996 |
| 5493346 | Signal demodulating apparatus capable of effectively suppressing the beat interference caused by the pilot signal A signal demodulating apparatus for demodulating FM video signals on which a pilot signal is mixed. The apparatus comprises an input circuit, a first deriving circuit, a pilot canceling signal generating circuit, a mixing circuit, a limiter and a demodula... | 02/20/1996 |
| 5493412 | Information signal reproduction apparatus A video signal processing apparatus is arranged to process a composite information signal which is formed by multiplexing first and second information signals having different frequency bands. When the composite information signal recorded on a recording ... | 02/20/1996 |
| 5488409 | Apparatus and method for tracking the playing of VCR programs A video tape player monitors the selection habits of a viewer selecting from a plurality of video tapes. Each video tape contains a plurality of programs. A first type of video tape has a title information symbol contained in a predetermined interval of t... | 01/30/1996 |
| 5485320 | Method and apparatus for adjusting asymmetric recording signals In a magnetic recording system, an asymmetry detector reverses the phase of a read, single-frequency test signal to indicate to a micro-controller whether recording signal asymmetry is present. Upon detecting such asymmetry, the micro-controller causes a ... | 01/16/1996 |
