US 2010/0164864 A1Published application

Direction controlling system and method of an electronic device

AssigneeChi Mei Communication Systems, Inc.

InventorMENG-CHIEH CHOU

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Abstract

A direction controlling system and method of an electronic device provides a fingerprint identification device for a user to touch. The electronic device captures a fingerprint template image of a finger. When the finger moves on the fingerprint identification device, the electronic device captures a sequence of fingerprint images of the finger. Furthermore, the electronic device detects a directional movement of the fingerprint according to the sequence of fingerprint images and the fingerprint template image. A scroll bar of the electronic device is controlled to move according to the movement direction and a movement distance calculated by the electronic device.

Claims13

Dependent claims

A direction controlling system of an electronic device, comprising:

at least one processor to execute one or more programs stored in a storage system of the direction controlling system, the one or more programs comprising:
a scanning module to capture a sequence of fingerprint images of a finger when the finger moves on a fingerprint identification device of the electronic device;
a detecting module to detect if at least two consecutive fingerprint images have blank areas, determine that the finger has moved in a leftward direction or in a rightward direction on the fingerprint identification device if at least two consecutive fingerprint images have blank areas, and to determine that the finger has moved in an upward direction or in a downward direction on the fingerprint identification device if no two consecutive fingerprint images have blank areas and there are no blank images in the fingerprint images;
and
the detecting module also to detect if there is only one full fingerprint image if there is at least one blank image, to determine that the fingerprint identification device has been tapped if there is only one full fingerprint image, and to determine that the fingerprint identification device has been double tapped if there are at least two full fingerprint images.

2 more elements

A direction controlling method of an electronic device, the direction controlling method comprising:

(a) capturing a sequence of fingerprint images of a finger when the finger moves on a fingerprint identification device of the electronic device;
(b) determining that the finger has moved in a leftward direction or in a rightward direction on the fingerprint identification device if at least two consecutive fingerprint images have blank areas;
(c) determining that the finger has moved in an upward direction or in a downward direction on the fingerprint identification device on condition that no two consecutive fingerprint images have blank areas and there are no blank images in the fingerprint images;
(d) determining that the fingerprint identification device has been tapped on condition that there is at least one blank image and there is only one full fingerprint image;
and
(e) determining that the fingerprint identification device has been double tapped on condition that there is at least one blank image and there are at least two full fingerprint images.

3 more elements

A computer-readable medium having stored therein instructions that, when executed by an electronic device, cause the electronic device to perform a direction controlling method of an electronic device, the direction controlling method comprising:

(a) capturing a sequence of fingerprint images when a finger moves on a fingerprint identification device of the electronic device;
(b) determining that the finger has moved in a leftward direction or in a rightward direction on the fingerprint identification device if at least two consecutive fingerprint images have blank areas;
(c) determining that the finger has moved in an upward direction or in a downward direction on the fingerprint identification device on condition that no two consecutive fingerprint images have blank areas and there are no blank images in the fingerprint images;
(d) determining that the fingerprint identification device has been tapped on condition that there is at least one blank image and there is only one full fingerprint image;
and
(e) determining that the fingerprint identification device has been double tapped on condition that there is at least one blank image and there are at least two full fingerprint images.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/543,592Filed 19 Aug 2009
Priority: CN 200810306591.X26 Dec 2008
Published: 1 Jul 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06V 40/1335
Fingerprints or palmprints: combining adjacent partial images to create a composite input or reference pattern; Tracking a sweeping finger movement
G06F 3/038
Pointing devices displaced or positioned by the user , e.g. mice, trackballs, pens or joysticks; Accessories therefor: control and interface…
G06F 3/04883
Using a touch-screen or digitiser, e.g. input of commands through traced gestures: for inputting data by handwriting, e.g. gesture or text
G06V
Image and video recognition

Family

US 8,433,109 B2Related patent
US 2010/0164864 A1This patent

From the US filing history. Foreign family members aren’t listed.

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