Method and apparatus for controlling a display in an electronic device
First Claim
Patent Images
1. A method for controlling the display of a portable electronic device having a camera function;
- the portable electronic device including a light-sensitive transducer for receiving a first image and a trackball for use as a user-input device;
the method comprising;
setting a default zoom level;
activating a viewfinder by generating a second image on the display that corresponds to the first image;
the second image having a field of view that corresponds to the default zoom level;
receiving rolling input from the trackball;
the input representing an instruction either to zoom-in to or zoom-out from the field of view;
adjusting the zoom level based on whether the instruction indicated zoom-in or zoom-out;
regenerating the second image, on the viewfinder, with an enlarged or reduced field of view according to the zoom level from the adjusting;
receiving an input from the trackball corresponding to the trackball being depressed; and
capturing at least a portion of the first image, the portion corresponding to the second image within the viewfinder according to the zoom level.
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Abstract
A novel method and apparatus for controlling a display of an electronic device is provided. In an embodiment, the device is a portable electronic device with the combined features of wireless email and telephony. The portable electronic device also includes a camera. The device includes a trackball which can be used to control the image shown in the viewfinder when the device is being used as a camera.
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Citations
19 Claims
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1. A method for controlling the display of a portable electronic device having a camera function;
- the portable electronic device including a light-sensitive transducer for receiving a first image and a trackball for use as a user-input device;
the method comprising;setting a default zoom level; activating a viewfinder by generating a second image on the display that corresponds to the first image;
the second image having a field of view that corresponds to the default zoom level;receiving rolling input from the trackball;
the input representing an instruction either to zoom-in to or zoom-out from the field of view;adjusting the zoom level based on whether the instruction indicated zoom-in or zoom-out; regenerating the second image, on the viewfinder, with an enlarged or reduced field of view according to the zoom level from the adjusting; receiving an input from the trackball corresponding to the trackball being depressed; and capturing at least a portion of the first image, the portion corresponding to the second image within the viewfinder according to the zoom level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- the portable electronic device including a light-sensitive transducer for receiving a first image and a trackball for use as a user-input device;
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12. A portable electronic device comprising:
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a processor interconnecting a trackball, a light-sensitive transducer, a display, a persistent storage device and a volatile storage device; the processor configured to generate a viewfinder on the display; the viewfinder reproducing an image, received via the light-sensitive transducer, the image having a field of view; the processor configured to receive rolling input from the trackball and to enlarge or reduce the field of view of the image on the viewfinder depending on a direction of the rolling input; and the processor further configured to receive a signal corresponding to the trackball being depressed, and, responsive to the signal, capture for saving on the persistent storage device a captured image;
the captured image corresponding to the image on the viewfinder according to the zoom level. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification