Computer graphics processing and selective visual display system – Plural physical display element control system – Segmented display elements
Patent
1995-02-17
1997-04-22
Harvey, David E.
Computer graphics processing and selective visual display system
Plural physical display element control system
Segmented display elements
361683, G09G 304
Patent
active
056232748
ABSTRACT:
A front-panel display of a PC has several 7-segment light-emitting diode (LED) displays. A serial link is provided from an I/O port on the PC motherboard to the front panel display. This serial link uses the turbo-in line that is normally used to light the turbo LED indicator. A microcontroller on the front-panel display samples the turbo-in line and extracts serial data once a start sequence is detected. The serial data is converted to parallel form, and then encoded into a code that can be decoded by the 7-segment LED displays. The microcontroller drives this code to the 7-segment displays so that the serial data from the I/O port on the PC motherboard is displayed by the 7-segment displays on the front panel. Software on the PC periodically writes to the I/O port to update the data bit transmitted. This software can thus alter the front panel display. Information displayed on the front panel can include the temperature of the CPU or power reduction in suspend modes. The display can be made to blink to alter the user when a critical temperature has been reached. Attributes may be sent with the serial data to designate that the display be blinked. Since the amount of data transmitted is small and not critical, the transmission is quick and causes the turbo Led to flicker only briefly.
REFERENCES:
patent: 4550278 (1985-10-01), Yamanaka
patent: 4613269 (1986-09-01), Wilder et al.
patent: 4685124 (1987-08-01), Smitt et al.
patent: 4718082 (1988-01-01), Parker et al.
patent: 4727491 (1988-02-01), Culley
patent: 5005151 (1991-04-01), Kurkowski
patent: 5088051 (1992-02-01), Forsythe et al.
patent: 5115225 (1992-05-01), Dao et al.
patent: 5121113 (1992-06-01), Kedge et al.
patent: 5157701 (1992-10-01), Parker
patent: 5172314 (1992-12-01), Poland et al.
patent: 5185881 (1993-02-01), Brooks et al.
patent: 5233337 (1993-08-01), Takahashi
patent: 5233347 (1993-08-01), Dahl et al.
"SmartVu.TM." as described in the User Manuals for the Dell.TM. 486D Systems; 1988-1992.
Jones Larry
Mambakkam Sreenath
Venkidu Arockiyaswamy
Auvinen Stuart T.
Harvey David E.
OnSpec Electronic Inc.
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