# US 2010/0166406 A1 · Sound-based focus system and focus method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166406 A1 - Document ID: US20100166406A1 - Status: Published application - Kind: A1 - Application number: 12/482,392 - Filed: 2009-06-10 - Published: 2010-07-01 - Earliest claimed: 2008-12-29 - Assignees: Hon Hai Precision Industry Co., Ltd. - Inventors: Shih-Yuan Fan - Web page: https://patentgrep.com/patent/US20100166406A1 ## CPC - G03B 13/32: Means for focusing - G02B 7/28: Systems for automatic generation of focusing signals - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A sound-based focus system includes an imaging device and focus controller. The imaging device is configured for capturing an image. The focus controller includes a sound detecting module and a control module. The sound detecting module is configured for obtaining the position coordinates of a sound source. The control module is configured for controlling the imaging device to focus on the sound source according to the position coordinates thereof. ## Claims ### Claim 1 A sound-based focus system comprising: an imaging device configured for capturing an image; and a focus controller comprising: a sound detecting module configured for obtaining the position coordinates of a sound source; a control module configured for controlling the imaging device to focus on the sound source according to the position coordinates thereof. ### Claim 2 (depends on 1) The sound-based focus system of claim 1, wherein the imaging device comprises a focus lens and a driving unit configured for driving the focus lens to move along an optical axis of the focus lens and adjusting the orientation of the focus lens to aim at the sound source. ### Claim 3 (depends on 2) The sound-based focus system of claim 2, wherein the control module controls the driving unit to drive the focus lens to focus on the detected sound source according to the position coordinates of the sound source. ### Claim 4 (depends on 1) The sound-based focus system of claim 1, further comprising a judging module and a selecting module, wherein the judging module is configured for judging the number of sound sources, the selecting module is configured for selecting a sound source based on a predefined selecting condition when the number of the sound sources is more than one. ### Claim 5 (depends on 4) The sound-based focus system of claim 4, wherein the control module controls the driving unit to drive the focus lens to focus on the selected sound source according to the position coordinates when the number of the sound sources is more than one. ### Claim 6 (depends on 4) The sound-based focus system of claim 4, wherein the sound detecting module is further configured for obtaining the intensities of the sound sources. ### Claim 7 (depends on 6) The sound-based focus system of claim 6, wherein the selecting module selects a sound source having the highest intensity when the number of the sound sources is more than one. ### Claim 8 (depends on 6) The sound-based focus system of claim 6, wherein the selecting module selects a sound source having the lowest intensity when the number of the sound sources is more than one. ### Claim 9 (depends on 4) The sound-based focus system of claim 4, wherein the selecting module selects a sound source having the longest radial distance when the number of the sound sources is more than one. ### Claim 10 (depends on 9) The sound-based focus system of claim 9, wherein the selecting module selects a sound source having the shortest radial distance when the number of the sound sources is more than one. ### Claim 11 A sound-based focus method comprising: obtaining the position coordinates of a sound sources; focusing on the sound source according to the position coordinates thereof. ### Claim 12 (depends on 11) The sound-based focus method of claim 11, further comprising a step of judging the number of sound sources and selecting a sound source by the position coordinates of the sound sources when the number of the sound sources is more than one after the step of judging the number of sound sources. ### Claim 13 (depends on 12) The sound-based focus method of claim 12, further comprising a step of obtaining the position coordinates of the sound sources. ### Claim 14 (depends on 13) The sound-based focus method of claim 13, further comprising a step of selecting one sound source from the sound sources based on a predefined selecting condition before the step of focusing on the sound source. ### Claim 15 (depends on 14) The sound-based focus method of claim 14, wherein the step of selecting comprises selecting a sound source having the longest radial distance when the number of the sound sources is more than one. ### Claim 16 (depends on 14) The sound-based focus method of claim 14, wherein the step of selecting comprises selecting a sound source having the shortest radial distance when the number of the sound sources is more than one. ### Claim 17 (depends on 11) The sound-based focus method of claim 11, further comprising a step of judging the number of sound sources and selecting a sound source by intensities of the sound sources when the number of the sound sources is more than one after the step of judging the number of sound sources. ### Claim 18 (depends on 17) The sound-based focus method of claim 17, wherein the selecting step comprises selecting a sound source having the highest intensity when the number of the sound sources is more than one. ### Claim 19 (depends on 17) The sound-based focus method of claim 17, wherein the selecting step comprises selecting a sound source having the lowest intensity when the number of the sound sources is more than one. ### Claim 20 (depends on 17) The sound-based focus method of claim 17, wherein further comprising obtaining the position coordinates of the selected sound source after the step of selecting one sound source and before the step of focusing on the sound source.