| US 7,593,054 B2 | ||
| Focusing apparatus | ||
| Kouichi Toyomura, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 10/489,487 PCT Filed Aug. 04, 2003, PCT No. PCT/JP03/09846 § 371(c)(1), (2), (4) Date Aug. 11, 2004, PCT Pub. No. WO2004/015476, PCT Pub. Date Feb. 19, 2004. |
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| Claims priority of application No. 2002-229772 (JP), filed on Aug. 07, 2002; and application No. 2002-229773 (JP), filed on Aug. 07, 2002. | ||
| Prior Publication US 2004/0257461 A1, Dec. 23, 2004 | ||
| Int. Cl. H04N 5/232 (2006.01) | ||
| U.S. Cl. 348—349 [348/351] | 7 Claims |
| 1. A focusing apparatus comprising:
focus signal generating means of generating focus signals indicating the degree of focusing;
in-focus direction signal generating means of generating in-focus direction signals indicating whether a focusing lens moved
for focusing is on a far side or near side viewed from an in-focus position using said generated focus signals at predetermined
time intervals;
in-focus direction signal storing means of storing a plurality of said in-focus direction signals generated at the predetermined
time intervals; and
focusing lens movement controlling means of controlling movement of said focusing lens based on a predetermined plural number
of immediately preceding in-focus direction signals out of said stored in-focus direction signals according to a predetermined
rule.
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