- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
118
10.6.5. AE Hysteresis Function
AE hysteresis function is available with the SS-HQ1 system. Using this function can enhance AE stability, even
in moments when the luminance level changes, such as when objects momentarily cross in front of the screen.
Table 10.6-9 AESTAB
AESTAB
AE STABility
Category CAT14_Byte9_bit0-7
(8bit)
Outline
The threshold value at which AE control stops can be set.
Conditions
AEHYST>0, AEWAIT>0, AEHYST>AESTAB
Available settings range
00[h] to FF[h] 8bit
Initial value
0[h]
Description
This setting specifies the threshold value for AE operation to stop after
it is in effect. 0[h] (none) to FF[h] (maximum)
Notes
Table 10.6-10 AEHYST
AEHYST
AE HYSTeresis
Category CAT14_Byte10_bit0-7
(8bit)
Outline
The threshold value at which AE control starts can be set.
Conditions
AEHYST>0, AEWAIT>0, AEHYST>AESTAB
Available settings range
00[h] to FF[h] 8bit
Initial value
0[h]
Description
Specifies the dead zone relevant to fluctuations in subject luminance.
0[h] (no dead zone) to FF[h] (dead zone maximum)
If the setting value is too small, AE tracks even minimal fluctuations in
the luminance, and the hysteresis function is less effective. Excessive
values, on the other hand, make differences in the luminance level
obvious when AE reaches convergence.
Notes
When AEHYST = 0[h], the AE hysteresis function is deactivated.