Patent ID: 8194174

Claim:
An apparatus comprising: an installer indicator device; an adjustable image capture device; a focus engine circuit; a user interface circuit, the focus engine circuit coupled to the adjustable image capture device, the user interface circuit coupled to the focus engine circuit and to the installer indicator device, whereby the installer indicator device is controlled by the user interface circuit to cue an apparatus installer to manually adjust the adjustable image capture device or to stop manually adjusting the adjustable image capture device; a pixel sum accumulator; a pixel sum comparator; a dark counter and comparator; a reset counter and comparator; and control logic circuits, the pixel sum comparator coupled to the pixel sum accumulator, and coupled to the dark counter and comparator, whereby the dark counter is enabled to count while the pixel sum is not above its threshold, and the dark counter is reinitialized while the pixel sum is above its threshold, the dark counter and comparator further couples to the installer indicator device and a reset counter and comparator, whereby the installer indicator device displays a reset state for a fixed period following initialization of the reset counter when the dark counter has detected a maximum delay, the reset counter is further coupled to the installer indicator device and to a best seen focus store, for to clear the reset state display and to reinitialize the best seen focus store, whereby a focus process may be initialized or reinitialized by an installation technician without access to a server or to a network.