Variable color digital display device

• US 4,771,274 A
• Filed: 11/12/1986
• Issued: 09/13/1988
• Est. Priority Date: 01/08/1986
• Status: Expired due to Fees

• Current Assignee: Karel Havel
• Original Assignee: Karel Havel
• Inventors: Havel, Karel
• Primary Examiner(s): Caldwell, Sr., John W.
• Assistant Examiner(s): OBERLEY, ALVIN E
• Application Number:
  US06/929,625
• Time in Patent Office: 671 Days
• Field of Search: 340/762, 340/804, 340/782, 340/701, 340/702, 340/703, 340/704, 340/815.1, 340/815.03
• US Class Current: 345/690
• CPC Class Codes: G04G 9/0064 in which functions not related to time can be displayed digital output to display devices of digital computers G06F3/14
• CPC Class Codes: G04G 9/12 using light valves, e.g. liquid crystals

Abstract

A variable color display device simultaneously indicates values of first digital data in digital format and values of second digital data in variable color.

Claims

1. A display device comprising:

variable color display means for providing a display indication in a single selective color;

an 8-bit binary counter for accumulating a count, said counter having counter outputs indicative of the value of the accumulated count;

a decoder responsive to said counter outputs for decoding said value of the accumulated count to color control signals, said decoder developing a first color control signal for said value of the accumulated count being less than 63, a second color control signal for said value of the accumulated count being between 64 and 127, and a third color control signal for said value of the accumulated count being between 128 and 191; and

color control means responsive to said color control signals for causing said display means to illuminate in red color in response to said first color control signal, in yellow color in response to said second color control signal, and in green color in response to said third color control signal.

2. A display device comprising:

variable color display means for providing a display indication in a single selective color;

an 8-bit binary counter for accumulating a count, said counter having counter outputs indicative of the value of the accumulated count;

a decoder responsive to said counter outputs for decoding said value of the accumulated count to color control signals, said decoder developing a first color control signal for said value of the accumulated count being between 32 and 63, a second color control signal for said value of the accumulated count being between 64 and 95, a third color control signal for said value of the accumulated count being between 96 and 127, a fourth color control signal for said value of the accumulated count being between 128 and 159, a fifth color control signal for said value of the accumulated count being between 160 and 191, a sixth color control signal for said value of the accumulated count being between 192 and 223, and a seventh color control signal for said value of the accumulated count being over 224; and

color control means responsive to said color control signals for causing said display means to illuminate in red color in response to said first color control signal, in white color in response to said second color control signal, in yellow color in response to said third color control signal, in green color in response to said fourth color control signal, in blue-green color in response to said fifth color control signal, in purple color in response to said sixth color control signal, and in blue color in response to said seventh color control signal.

3. A display device comprising:

variable color display means for providing a display indication in a single selective color;

an N-bit counter for accumulating a count, where N is an integer having value at least 2, said counter having counter outputs indicative of the value of the accumulated count;

a converter responsive to said counter outputs for converting said value of the accumulated count to color control signals, said converter developing a first color control signal for said value of the accumulated count being less than a predetermined low count, a second color control signal for said value of the accumulated count being between the predetermined low count and a predetermined high count, and a third color control signal for said value of the accumulated count being greater than the predetermined high count; and

color control means responsive to said color control signals for causing said display means to illuminate in a first color in response to said first color control signal, in a second color in response to said second color control signal, and in a third color in response to said third color control signal.