Analog graphic display method and apparatus
Patent
·
OSTI ID:7083839
Disclosed are an apparatus and method for using an output device such as an LED to show the approximate analog level of a variable electrical signal wherein a modulating AC waveform is superimposed either on the signal or a reference voltage, both of which are then fed to a comparator which drives the output device. Said device flashes at a constant perceptible rate with a duty cycle which varies in response to variations in the level of the input signal. The human eye perceives these variations in duty cycle as analogous to variations in the level of the input signal. 21 figures.
- DOE Contract Number:
- AC09-76SR00001
- Assignee:
- PTO; EDB-94-111368
- Patent Number(s):
- US 5039978; A
- Application Number:
- PPN: US 7-461964
- OSTI ID:
- 7083839
- Resource Relation:
- Patent File Date: 8 Jan 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analog graphic display method and apparatus
Analog graphic display method and apparatus
Method for transmitting analog data over a fiber-optic link
Patent Application
·
Mon Jan 08 00:00:00 EST 1990
·
OSTI ID:7083839
Analog graphic display method and apparatus
Patent
·
Tue Jan 01 00:00:00 EST 1991
·
OSTI ID:7083839
Method for transmitting analog data over a fiber-optic link
Conference
·
Thu Jan 01 00:00:00 EST 1981
· Proc. Symp. Eng. Probl. Fusion Res.; (United States)
·
OSTI ID:7083839