Quotables
"There is no reason anyone would want a computer in their home."
Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5197806 | Bearing system Described herein is a rotational bearing system incorporating a ball bearing to support a shaft or housing in freely rotatable state through rolling contact with the ball bearing, the rotational bearing system comprising: vibratory elements adapted to exc... | 03/30/1993 |
| 5181193 | Optical pickup device for a recording and/or reproducing apparatus An optical pickup device for a recording and/or reproducing apparatus in which a light beam from a semiconductor laser element is converged by an object lens and irradiated on recording tracks of an optical disk and the light reflected by the disk is sens... | 01/19/1993 |
| 5170732 | Sewing machine bobbin A bobbin comprises a hollow hub adapted to cooperate with a latch and post on a bobbin casing housed in a sewing machine. The latch and post enter the hub and guide the bobbin into place in the sewing machine. Thread previously wound around the hub is ada... | 12/15/1992 |
| 5170385 | Recording medium with unembossed area indicating sector divisions A recording medium in which one sector is divided into a plurality of segments and information is recorded in the segments, uses a reproducing method in which information is reproduced optically from this medium. The recording medium has an area in which ... | 12/08/1992 |
| 5168363 | Video signal parocessing apparatus with memory and crossfader A video signal processing apparatus for performing editing of video signals includes a memory into which one field or one frame of a moving picture video signal from a video camera is written and a crossfading circuit, wherein a still picture of the video... | 12/01/1992 |
| 5168394 | Apparatus for generating time information for a frame of video information using interpolation In a time information generator for generating time information in an arbitrary frame of video information varying with changes in time on the basis of time information delivered at a predetermined time interval from a video information forming device for... | 12/01/1992 |
| 5166835 | Recording and reproducing apparatus with variable time delay for PCM and analogue audio data An apparatus for editing a digital audio signal includes parallel stationary transducer heads for reproducing the digital audio signal from a magnetic tape the same on the tape after it is modified by a mixing circuit. A digital-to-analogue converter and ... | 11/24/1992 |
| 5161067 | Objective lens driving apparatus for an optical recording and/or reproducing apparatus An optical pickup device with an objective lens movable in two directions comprises a supporting member having a plate-shaped supporting portion mounted with a bobbin to which an objective lens is attached. The bobbin is mounted so that it can be freely m... | 11/03/1992 |
| 5157650 | Optical recording apparatus An optical recording apparatus employing a plurality of modulated laser beams as means for recording information on an optical recording medium, comprising a laser beam source which emits a laser beam, a plurality of carrier sources which generate carrier... | 10/20/1992 |
| 5148424 | Detrack detecting system in an optical recording/reproducing apparatus A detrack detecting system for detecting deviation of the beam spot from the track in an optical recording/reproducing apparatus in which recording and reproducing of data are performed by irradiating optical beams onto an optical disc. Three beam spots a... | 09/15/1992 |
| 5144420 | Color image processing apparatus that multiplies color difference signals by generated coefficients to achieve saturation control without changing color phase Image processing apparatus with a color saturation controller for processing a color image signal to be printed derives color difference signals from an incoming color image signal, detects a minimum difference value between an allowable dynamic range of ... | 09/01/1992 |
| 5144169 | Operational amplifier circuit An operational amplifier circuit comprises a pair of emitter common transistors forming a differential amplifier circuit including a first conductivity type first and second transistors; a current mirror circuit including a second conductivity type third ... | 09/01/1992 |
| 5138598 | Optical disk having relatively wide RAM tracks and relatively narrow ROM tracks A record medium having a pre-formed recording track with a recordable area on the recording track in which data is recorded and an area on the recording track used exclusively for reproduction in which data is pre-recorded by displacing the track in the t... | 08/11/1992 |
| 5138314 | Method for converting and/or detecting data In a data conversion method of converting source data of M bit unit to be recorded on a recording medium into conversion data of N (>M) bit unit, n, which is a number of inter-symbol interferences permitted in a transmission path, continuous codes in the ... | 08/11/1992 |
| 5134579 | Digital adder circuit A digital adder circuit has a plurality of adders for adding binary numbers. A carry calculator calculates carry data to a higher bit on the basis of added results of the plurality of adders, and a carry corrector adds the carry data to the added results ... | 07/28/1992 |
| 5125592 | Tape transport system with servo gain responsive to detected tape tension A tape transport apparatus is comprised of a friction type capstan servo block having a friction type capstan driven by a capstan motor controlled by a capastan servo circuit in response to a control signal for determining a velocity of the capstan and a ... | 06/30/1992 |
| 5124594 | Digital phase comparator for use in a phase lock loop A Digital Phase Comparator has a simplified logic circuit in which Nand Circuits provide UP and DOWN signals containing phase information about E and F signals.... | 06/23/1992 |
| 5093744 | Remote commander A remote commander transmits a command signal from a light emitting element controlled by a transmitting integrated circuit to an apparatus to be controlled. A single low voltage battery drives the remote commander, and a booster circuit boosts the low vo... | 03/03/1992 |
| 5091815 | High packing density disk cartridge with write protect mechanism A disk cartridge includes a first identification recess for serving to prevent data stored on a magnetic disk from being erroneously erased from the disk and to prevent new data from being erroneously written on the disk, a second identification recess fo... | 02/25/1992 |
| 5062132 | Telephone apparatus providing for automatic transfer of stored data between handsets In a telephone system, when a predetermined key of a handset unit is operated data stored in a memory incorporated within the handset unit is transferred to a memory incorporated within another handset unit, so that data that was manually input for storag... | 10/29/1991 |
| 5050002 | Circuit for detecting a drop-out of a frequency modulated video signal A drop-out detecting circuit forms a drop-out detecting signal on the basis of the result of comparing the frequency of a frequency modulated video signal reproduced from a slant track on a magnetic tape with a reference frequency. The level of a reproduc... | 09/17/1991 |
| 5040082 | Recording apparatus A tape recording apparatus is capable of operation in either a normal recording mode or a high band recording mode. Detecting holes to indicate whether a tape cassette loaded into the recording apparatus is designed for the normal recording mode or the hi... | 08/13/1991 |
| 4963097 | Display apparatus for a group education system In a group education system of the type having a teacher console and a plurality of terminals at seat positions assignable for student use, a display apparatus includes a display screen adapted to display a seating pattern which corresponds to the seating... | 10/16/1990 |
| 4946298 | Printing apparatus A printing apparatus including a printing section defined between a platen and a printing head mounted for movement in parallel with the platen to convert information into printed form on a printing medium placed in the printing section. At least one pair... | 08/07/1990 |
| 4931017 | Stencil book A book for children comprises a front cover, a back cover and a plurality of sheets forming a succession of pages between the front cover and the back cover. The sheets are die cut or perforated to form knockout plugs intended to be removed by the consume... | 06/05/1990 |
| 4922343 | Apparatus for detecting frequency of input signal with a digital scanning G-converter A frequency detector is used with a digital scanning converter that enables a monitor receiver having a particular horizontal deflection frequency to monitor various video signals having various horizontal frequencies. The frequency detector has a counter... | 05/01/1990 |
| 4909138 | Ruminant feedstuffs, their production and apparatus for use therein The invention provides novel feedstuffs for ruminants comprising an edible water insoluble salt of an edible higher fatty acid, free fat, excess of the salt-forming metal, and optionally a further nutritional material, expecially a proteinaceous feedstuff... | 03/20/1990 |
| 4902988 | Control for flexible probe An electrically-conductive flexible probe is mounted within a wave guide that receives radio-frequency electromagnetic radiation. A leading portion of the probe has an orientation that is adjustable between two positions that are angularly displaced with ... | 02/20/1990 |
| 4896225 | Tape recording and/or reproducing apparatus A tape recorder has an operating mode in which a magnetic tape is run at a speed higher than an ordinary reproducing speed, a magnetic head is in sliding contact with the magnetic tape, and a desired tape position is searched. In this operating mode, the ... | 01/23/1990 |
