The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
This article describes a technique which allows refresh-mode images to be superimposed on stored images in a storage cathode ray tube (CRT) with the refresh-mode images distinguished by color.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
53% of the total text.
Page 1 of 3
Storage Oscilloscope Tube with Color and Refresh Mode
This article describes a technique which allows refresh-mode images to be
superimposed on stored images in a storage cathode ray tube (CRT) with the
refresh-mode images distinguished by color.
Steady progress in thin-film AC electroluminescent structures makes
increasingly certain that bright, high-contrast storage CRTs will be able to be
made. These make use of the bistable effects in AC electroluminescent (EL)
In the CRT mode, the CRT faceplate would have a sandwich target structure
consisting of a transparent electrode, an insulator, the thin-film EL material,
another insulator and a back electrode which could be either transparent or
metallic. This structure, shown in Fig. 1, would be excited by an AC voltage of
suitable amplitude to make its light output bistable; i.e., where it is turned on to
emit light, it will remain on until turned off by reducing the AC voltage.
The faceplate can be turned on by an E-beam, exciting a UV phosphor
behind the structure. The bistable film can be directly turned on by bombardment
directly with energetic electrons.
For interactive computer display applications, storage on the display output
device is very helpful. It allows presentation of more information than can be
accommodated in refresh mode where all formation contained in the display must
be written every 30 milliseconds or so to avoid flicker. However, it can be a
handicap if the entire display must be rewritten every time a small change or
interaction takes place. Therefore, it is helpful to combine the properties of
storage with overlaid ref...