Control system for a head-up display for automotive vehicles

Details Control system for a head-up display for automotive vehicles Control system for a head-up display for automotive vehicles

1989-04-12

1993-04-13

Ng, Jin F.

Communications: electrical

Land vehicle alarms or indicators

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

340980, 359630, 353 13, 353 14, G09G 302

Patent

active

052026680

ABSTRACT:
A noise suppressing arrangement in the form of an interface is provided between a data transfer circuit and a driver associated with a display unit vacuum fluorescent display (VFD) tube. The driver and power supply circuits associated with the display unit feature improved arrangements which attenuate surges and spikes. The voltage appearing on the grid of the VFD is controlled by a circuit which is responsive to a signal produced by a microcomputer which controls the illumination and which induces changes in the voltages applied across the filament of the VFD. The level of illumination can be automatically controlled by light sensor and illumination levels above default values which are automatically reset to optimal values each time the system is initially energized.

REFERENCES:
patent: 4358713 (1982-11-01), Senoo
patent: 4386345 (1983-05-01), Narveson et al.
patent: 4514727 (1985-04-01), Van Antwerp
patent: 4868652 (1989-09-01), Nutton
Japanese Patent Abstract No. 59-92689, dated May 28, 1984.

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