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| Patent # | Description |
|---|---|
| US-4,679,102 |
Method and means for parking read/write heads in a disc drive using the
back-EMF of the spindle motor to... Electronic circuitry is provided to position the read/write heads in a designated landing zone when the electrical power is removed from the drive. When power is... |
| US-4,679,101 |
Information recording or erasing apparatus Apparatus for use with a cassette housing a recording medium including a recording-erasing apparatus and an inhibit device for inhibiting signal recording or... |
| US-4,679,100 |
Rotary head type magnetic recording and reproducing device A rotary head type magnetic recording and reproducing device intended for dubbing one tape from another wherein the effects of vibration, jitter, etc., during... |
| US-4,679,099 |
Information signal reproducing apparatus The disclosed information signal reproducing apparatus reproduces information signals from a recording medium with a number or tracks. Four pilots signals having... |
| US-4,679,098 |
Video tape transport servo for variable tape speed control A capstan servo for moving video tape with variable speed during playback controls the tape speed according to time period inputs. The input specifies the number... |
| US-4,679,097 |
Method of recording and reproducing video and audio signals on a
magnetic tape A magnetic recording and reproducing method, applicable to a magnetic recording and reproducing apparatus such as a video tape recorder. The method comprising... |
| US-4,679,096 |
Image processing apparatus An image processing apparatus comprises an image reader for inputting image data, a memory for storing the image data, a read clock generator for generating a... |
| US-4,679,095 |
Method and apparatus of scanning and recording image A novel method of scanning and recording image and an apparatus for use thereof in which: plural original pictures are attached to an original picture cylinder;... |
| US-4,679,094 |
Method for compression and transmission of video information A facsimile transmitter capable of transmitting graphic as well as text material, by telephone or wireless. A digital code derived from scanning the document to... |
| US-4,679,093 |
Image communication apparatus An image communication apparatus has a detector for detecting if the length of a text sheet to be transmitted is greater than the length of a cut record sheet in... |
| US-4,679,092 |
Reduced distortion display circuit The distortion of an emitter-follower output stage of a video amplifier for driving a cathode of a picture display tube can be reduced without rendering a beam... |
| US-4,679,091 |
Multiple scanning type television receiver A television receiver having a video signal receiving circuit for receiving a video signal, a vertical synchronizing signal and a horizontal synchronizing... |
| US-4,679,090 |
CCD circuitry for line-sequential read out of a photosensor array Diagonally disposed line-selection artifacts appear in the video signal from a CCD imager using a line-transfer register, owing to differential delay in a... |
| US-4,679,089 |
Solid state image sensor having an anti-blooming isolation electrode An image sensor includes a layer of photosensitive amorphous silicon on one surface of which is a large area common electrode and on the opposite surface of... |
| US-4,679,088 |
Image sensor with means to adjust capacitance of signal leads Image sensor wherein there are provided a charge storage type photoelectric conversion section and a drive circuit including an integrated circuit on a... |
| US-4,679,087 |
Method and apparatus for photographing video images of either polarity
without CRT brightness or contrast... Apparatus and method for controlling a video signal amplitude excursion to provide a display image within a photographic acceptance range of a film. A clamping... |
| US-4,679,086 |
Motion sensitive frame integration Noise smoothing of imaging data is performed using frame integration, by averaging pixels over time instead of space, without resulting in a smear of moving... |
| US-4,679,085 |
Digital integrated electronic storage system for video and audio playback An apparatus for displaying in real-time a previously recorded video sequence includes a main memory wherein digitized video gray-scale information is stored for... |
| US-4,679,084 |
Method and apparatus for freezing a television picture Method and apparatus for producing a frozen television picture are disclosed. Successive fields of picture information are generated by an interpolator which is... |
| US-4,679,083 |
Teletext device with reduced page-access time Arrangement for receiving and processing digital signals in teletext or associated systems, comprising a picture store and a background store, the background... |
| US-4,679,082 |
Code transmission system character broadcasting receiver A receiver for receiving a code transmission system character broadcasting signal transmitted during the vertical blanking period of television video signal,... |
| US-4,679,081 |
System for coding video signal in block unit A system for coding video signals e.g. television signals in block units is disclosed. The coding system comprises a synchronization detector for detecting a... |
| US-4,679,080 |
Field blanking pulse modifier A field blanking pulse modifier in which the line synchronizing pulses and the field blanking pulse of a conventional television signal are derived. A counter is... |
| US-4,679,079 |
Method and system for bit-rate compression of digital data transmitted
between a television transmitter and a... A method and the system for bit-rate compression of digital data between a television transmitter and receiver employs at the transmitter a differential coding... |
| US-4,679,078 |
High security subscription television transmission system A system for scrambling and descrambling a composite video signal having video program information, vertical sync pulses, and horizontal sync and blanking... |
| US-4,679,077 |
Visual Image sensor system A visual image sensor system for detecting an abnormal change in a monitored scene is disclosed, wherein normal changes which may occur in the monitored scene... |
| US-4,679,076 |
Means for registering coordinates The coordinates are determined for arbitrary points on the contour of any body (1). This is achieved by producing a line (13) circumventing the body (1). The... |
| US-4,679,075 |
Glassware inspection using optical streak detection Method and apparatus for inspecting transparent articles such as glassware for various types of defects, while conveying the articles past an optical inspection... |
| US-4,679,074 |
Color image processing apparatus with a plurality of addressable
characteristic conversion tables for... There is disclosed an image processing apparatus for processing an image signal in which the mode of image processing is rendered variable to adapt to plural... |
| US-4,679,073 |
Color image reading apparatus with white balance system for controlling
the intensity of a light source... In a color image reading apparatus, a CCD line image sensor reads a color document illuminated by a light source three times in succession through red, green and... |
| US-4,679,072 |
Color adjusting device The color adjusting device of the invention is provided with coordinate axis converting means in which a plurality of independent chrominance signals at the... |
| US-4,679,071 |
Method of recording register marks A method of recording register marks by a color scanner for the respective color separation pictures, wherein the register marks are produced by positive and... |
| US-4,679,070 |
Method and apparatus for enhancing magenta modulation of a light valve
projector Improved signal modulating circuits for a light valve projector are disclosed which are capable of increasing the magenta efficiency of the projector. The... |
| US-4,679,069 |
Color picture projection system with a wavelength-selective reflector
for filtering out undesired light from a... In a color picture projection system three monochrome pictures are superimposed to form a color display on a projection screen by means of a chromatic projection... |
| US-4,679,068 |
Composite visible/thermal-infrared imaging system Multispectral imaging apparatus for producing a composite visible/infrared image includes a wavelength-independent focus reflective optical system for focusing... |
| US-4,679,067 |
Color correction system and method with localized color sampling In a scene-by-scene color corrector, automatic color correction circuitry produces color correction signals which are stored and utilized in preparing... |
| US-4,679,066 |
Color image pickup device A color image pickup system includes image pickup apparatus for obtaining a color video signal from an optical image; adjusting apparatus for adjusting the hue... |
| US-4,679,065 |
Automatic white control circuit for color television receiver A color television receiver with automatic reference white control circuit has negative feedback loops for automatically adjusting the amplitude of each cathode... |
| US-4,679,064 |
Circuit for changeable prolongation of the running time of an ultrasound
delay line A circuit for the changeable prolongation of the (phase-) running time of an ultrasound delay line with a delay duration of somewhat less than a line duration... |
| US-4,679,063 |
Infra red detectors A detector in which a barrier region is interposed in the current path between the emitter and collector of the detector. This region is of a material having a... |
| US-4,679,062 |
Thin film transistor An impurity-doped amorphous silicon semiconductor layer is deposited on a substrate, source and drain electrodes are deposited apart from each other on the... |
| US-4,679,061 |
Superlattice photoconductor Photoconductive gain is observed in a device comprising a superlattice having well and barrier layers, and cladding layers on the opposite sides of the... |
| US-4,679,060 |
Ionic print cartridge and printer In one of its aspects the invention provides an ionographic print cartridge for use in placing discrete dots of electrostatic charge on a drum to build a latent... |
| US-4,679,059 |
High speed ink jet printer with improved electrical connection to the
nozzles An ink jet printer is provided with an ink reservoir including a laminar substrate covered on the outer surface of a plurality of metal coatings forming... |
| US-4,679,058 |
Cassette-type printing head with perforated film member The present invention relates to a cassette-type printing head which comprises in combination: a cassette body for housing an ink, an ink guiding member in which... |
| US-4,679,057 |
Laser recording apparatus Disclosed is a tone reproducible laser recording apparatus in which a laser beam is produced by a pulse signal modulated in amplitude and also in pulse width in... |
| US-4,679,056 |
Thermal head with invertible heating resistors A thermal head comprising heating resistors with their temperature coefficient of resistance being negative at normal temperature and invertible to be positive... |
| US-4,679,055 |
Method and apparatus for thermal half-tone printing Each picture element is made to correspond to a plurality of dots and the ratios of printing energy corresponding to respective dots in each picture element are... |
| US-4,679,054 |
Print head A print head with elongate electrical conductors and a fixing member containing hexagonal boron nitride, the elongate electrical conductors being embedded in or... |
| US-4,679,053 |
Thermal variable velocity printer system A recording system for driving heating elements of a thermal printing head such that the recording intensity is substantially the same at two different recording... |
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