Quasi-composite video signal generator in CRT display unit

Details Quasi-composite video signal generator in CRT display unit Quasi-composite video signal generator in CRT display unit

1996-06-04

1997-12-16

Lee, Michael H.

Television

Monitoring, testing, or measuring

Test signal generator

348189, 315365, H04N 1700

Patent

active

056991118

ABSTRACT:
A quasi-composite video signal generator incorporated in a microcomputer having a circuit for generating a quasi-composite video signal to be used to adjust a cathode ray tube (CRT) of a display unit, and the microcomputer being incorporated in the display unit. This generation circuit has a synchronous signal generation section for generating horizontal and vertical synchronous signals, a display setting unit for setting an image to be displayed, and a signal generator for generating a three-state signal Vout according to the image set by the display setting unit and the horizontal and vertical synchronous signals. The signal Vout is converted by a shaping circuit into the quasi-composite video signal, which is applied to drivers of cathode electrodes of the CRT.

REFERENCES:
patent: 4513318 (1985-04-01), Wilensky et al.
patent: 4538268 (1985-08-01), Pham Van Cang
patent: 5291276 (1994-03-01), Matsumoto et al.
patent: 5298985 (1994-03-01), Tsujihara et al.
patent: 5319446 (1994-06-01), Simmoto et al.
Milton S. Kiuer et al., Television Electronics : Theory and Servicing, 1983, pp. 813, 522.

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