Browse Prior Art Database

Camera Phone Touchscreen Shutter Button with Autofocus

IP.com Disclosure Number: IPCOM000205124D
Original Publication Date: 2011-Mar-15
Included in the Prior Art Database: 2011-Mar-15
Document File: 2 page(s) / 74K

Publishing Venue

Microsoft

Related People

Ahmad Bilal: INVENTOR [+2]

Abstract

Conventional camera phone touchscreen shutter buttons don’t have a way to trigger autofocus. Existing solutions either require a dedicated hardware shutter button or additional user input. The solution integrates capture and auto-focus functionality in a single button by taking advantage of the difference between tap and tap-and-hold gestures.

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Document Author (alias)

Ahmad Bilal (ahmadb)

Defensive Publication Title 

Camera Phone Touchscreen Shutter Button with Autofocus

Name(s) of All Contributors

Shamik Bandyopadhyay (shamikba)

 

 

 

 

Summary of the Defensive Publication/Abstract

Conventional camera phone touchscreen shutter buttons don’t have a way to trigger autofocus. Existing solutions either require a dedicated hardware shutter button or additional user input. The solution integrates capture and auto-focus functionality in a single button by taking advantage of the difference between tap and tap-and-hold gestures.

Description:  Include architectural diagrams and system level data flow diagrams if: 1) they have already been prepared or 2) they are needed to enable another developer to implement your defensive publication. Target 1-2 pages, and not more than 5 pages.  

Conventional camera phone touchscreen shutter buttons don’t have a way to trigger autofocus. Some camera phones solve this problem by providing a dedicated hardware shutter button on the device which works like the shutter button on a point-and-shoot camera. This hardware button has two states: half press and full press. Half press triggers autofocus and full press triggers capture. This works well for devices with this additional hardware control, but there are devices which completely rely on touchscreen controls. Such devices either use touch focus which works by tapping on various regions of the touchscreen to focus, or an additional touchscreen button to trigger autofocus. Either way, additional user input is required

The solution presented here integrates capture and auto-focus functionality in a single button by differentiating between tap and tap-and-hold gestures. This provides user experience similar to the familiar hardware shutter buttons, without requiring additional hardware or touchscreen controls. Using this single integrated button is also convenient for single-...