09652648 is referenced by 18 patents and cites 472 patents.

Systems and methods are provided for positioning an object with respect to a target location, such as for auto-focusing. One implementation includes a positioning device, which includes a reference object having a plurality of dark-shaded bars arranged in parallel with and separated from each other by spaces equal to a width of each of the bars. The positioning device also includes a motor configured to move in a reciprocating manner and a sensor configured to sense at least one of the bars or spaces. The motor is connected to the reference object or the sensor and moves the reference object or sensor with respect to the other. The motor is configured to stop at a target location in two phases of motion.

Title
Positioning an object with respect to a target location
Application Number
14/851645
Publication Number
9652648 (B2)
Application Date
September 11, 2015
Publication Date
May 16, 2017
Inventor
Khalid El Akel
Castanet-Tolosan
FR
Jean Pierre Stang
Auzeville-Tolosane
FR
H Sprague Ackley
Seattle
WA, US
Agent
Additon Higgins & Pendleton P A
Assignee
Hand Held Products
SC, US
IPC
G06K 7/10
View Original Source