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7321399 |
Multiplexed analog-to-digital converter arrangement
A system such as an audio and/or video system includes a multiplexed analog-to-digital converter arrangement. The arrangement includes an ADC for converting first and second analog signals to first...
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7154495 |
Analog interface structures and methods for digital displays
Structures and methods are provided for generating a digital display signal from an analog signal that is limited to 2 N discrete analog levels and from a synchronization signal that defines...
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7102693 |
Data acquisition circuit which changes a range of a reference potential
An A/D converter updates its reference potential so that it coincides with an analog potential of a video signal. The A/D converter changes a variable voltage range of the reference potential...
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7053958 |
Method and apparatus for providing binary digital TV data from a structured data format
A method and apparatus for providing binary digital TV data from a structured data format, wherein data in a structured data format according to a predetermined intermediate data format definition...
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6995802 |
Image binarization method and binary image creation method
An image binarization method having highest fidelity for multi-digitized luminance data, and a binary image creation method by which images can be obtained in real-time without post-processing....
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6989871 |
Image-signal processing apparatus for clamping analog image signal and then for converting it to digital image signal
An analog Y signal input from an input terminal 101 is clamped at a pedestal level in a clamp circuit 102 , and then, is converted to a digital image signal in a quantization circuit 103 . The...
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6965407 |
Image sensor ADC and CDS per column
A solid state imager includes an arrangement for converting analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp...
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6789124 |
Multi-standard enhanced inband data receiver
A system for receiving and analyzing at least one inband user data packet within a CATV video signal. The system includes a data detector, a data processor and a memory. The data detector receives...
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6486926 |
Adaptable raster distortion correction system for multiple horizontal scanning frequencies
A memory and a switchable digital filter supply different numbers of digital distortion correction values. The supplied distortion correction values are converted to an analog distortion correction...
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6429904 |
Method for converting analog video signal to digital video signal
A VGA to analog video converter is useful e.g. for displaying video and/or graphics data from a computer onto a large screen television or television monitor. The RGB video signals output from the...
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6057891 |
Method and apparatus for calibrating an analog to digital converter
A process for correcting the input-output correspondence of an analog-to-digital converter includes calculating the equation of the actual input-output correspondence, for known input values,...
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5541665 |
Image processing apparatus with change over of clock signals
In order to enable sampling of high definition still video signals in addition to common video signals, a function is added for sampling video signals with every other plurality of picture elements...
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5121207 |
Digital circuit arrangement for processing an analog video signal at a free running system clock
In a digital circuit arrangement for processing an analog video signal, which operates at a fixed system clock not coupled to the video signal, in which the video signal is sampled and which...
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4704632 |
Electronic camera for digital processing of CCD data
A camera for sensing image information and accurately and quickly reducing such information to a plurality of black and white analog voltages corresponding to pixels of a line image scan. A sensor...
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4667237 |
Image signal processing device
A binary digitizing apparatus in which the white and the black levels of the input signals are measured for determining a reference value, and thus determined reference value is used for binary...
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4491869 |
Pulse code modulation system suitable for digital recording of broadband analog signals
The d.c. component of video signals is to a great extent eliminated for a wide range of content, sufficiently for recording, for example, without the introduction of redundancy in the digital...
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4258390 |
Video signal processing circuit
A video signal processing circuit in which sampling hold circuits are responsive to respective sampling pulses supplied simultaneously for sampling common input video signals and for holding values...
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4220972 |
Low contrast object extraction device
A system for automatic thresholding video data to educe and detect objects of interest from both high and low contrast imagery is disclosured here, which makes an object screening system adaptive...
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4130835 |
Electrical waveform analysis
A circuit for detecting changes in the amplitude of a video signal features a sampler for sampling the signal. The sampled signal is then held and delayed by a selected amount. The delayed and...
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3911212 |
Threshold device for converting video signal to binary video signals and method of determining threshold level
In an image analysis for document or a particle measuring system, a threshold circuit for providing a reference signal for comparison with a video signal derived from a television camera to provide...
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3878323 |
Detecting devices for image analysis systems
Detection devices for image analysis systems employing line scanning in which detection is in part governed by inspecting video signal from portions of scan lines intersecting a feature under...
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3813487 |
DETECTION DEVICES FOR IMAGE ANALYSIS SYSTEMS
Circuit modifications to a known detection device by which video signal amplitude excursions are converted into a two value signal by comparing the video signal with a reference voltage, which is...
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3813486 |
IMAGE ANALYSIS
The invention concerns image analysis systems employing a source of scanned video signal and threshold detector means for generating a binary signal whose value depends on the fulfilment or...
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3804979 |
DETECTION DEVICES FOR IMAGE ANALYSIS SYSTEMS
The invention concerns detection devices for image analysis systems in which an amplitude modulated video signal is obtained by line scanning. A two value signal is obtained by comparing the...
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3757038 |
IMAGE ANALYZING APPARATUS
As described herein, television information signals are supplied concurrently to a display device for reproduction and to a converter network which converts the analogue television information...
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3637927 |
COMPARING TELEVISION SIGNALS WITH VARIED THRESHOLD AND PRODUCING BINARY SIGNALS
A reference voltage is cyclically varied within a range of dark and bright television picture signals. Binary one signals are produced when an instantaneous picture brightness signal voltage is...
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3453383 |
ELECTRONIC PICTURE DISPLAY SYSTEM PERMITTING TRANSMISSION OF INFORMATION FROM CAMERA TO MONITOR THROUGH A NARROW BANDWIDTH DATA LINK
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