Display device

Details Display device Display device

1986-03-28

1988-10-25

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340799, 340747, G06F 3153

Patent

active

047807130

ABSTRACT:
The invention concerns a display device for displaying graphical information, in the form of point patterns forming symbols of an arbitrary size and shape, each symbol being allocated a unique symbol code, as well as in the form of non-symbolic information, on a display unit (8) of a raster-scan type and comprising a symbol memory (13) including information on the point pattern of the available symbols, a pixel oriented image memory (2) including all graphical information to be displayed on the display unit, and a processor (1), by which the symbols incorporated in the image are read into the image memory by processing the information that is stored in the symbol memory. What is characteristic of the invention is a pixel oriented auxiliary memory (3) with the same pixel division as the image memory, each symbol in the image memory (2) corresponding to a pixel in the auxiliary memory, which pixel defines the symbol position in the image. The auxiliary memory is also allocated a row memory (4), each pixel row in the auxiliary memory (3) being allocated a memory cell in the row memory. Furthermore, the row memory is allocated a code memory (5) including the symbol codes for the symbols that appear in the image, each memory cell in the row memory including a pointer (ADDRESS 1, ADDRESS 2, ---) to the memory cell in the code memory (5) that includes the symbol code for the first symbol on the corresponding pixel row in the auxiliary memory (3), and the symbol codes for the remaining symbols on this pixel row being allocated the consecutive memory cells of the code memory.

REFERENCES:
patent: 4074254 (1978-02-01), Belser et al.
patent: 4131883 (1978-12-01), Lundstrom
patent: 4392130 (1983-07-01), Lundstrom et al.
patent: 4509043 (1985-04-01), Mossaides
patent: 4591850 (1986-05-01), Lundstrom
patent: 4660029 (1987-04-01), Houda et al.

Affiliated with

Also associated with

Rating

Display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2271843