Methods and Systems for Gesture Classification in 3D Pointing Devices

• US 20140285434A1
• Filed: 04/18/2014
• Published: 09/25/2014
• Est. Priority Date: 11/16/2005
• Status: Abandoned Application

• Current Assignee: IDHL Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Hillcrest Laboratories Incorporated (CEVA Incorporated)
• Inventors: GRITTON, Charles W. K.
• Application Number:
  US14/256,542
• Publication Number:
  US 20140285434A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

Systems and methods according to the present invention provide the ability for a system to realize when a handheld device is performing a gesture and to execute the associated command.

Claims

1-45. -45. (canceled)

46. A method for determining when a user intends to communicate a gesture to a graphical user interface controlling a display screen and when said user does not intend to communicate said gesture to said graphical user interface controlling said display screen, comprising:

outputting data associated with motion of a handheld device held by user; and

evaluating by a processing unit said motion data to determine if said gesture is a predetermined gesture;

wherein said predetermined gesture corresponds to at least one predetermined pattern of motion data stored in a memory device and said gesture is compared with said motion data to identify if said gesture is said predetermined gesture performed by the handheld device; and

wherein said evaluating step occurs only if predetermined motion thresholds are exceeded and predetermined motion thresholds are any of acceleration thresholds, angular thresholds, and distance thresholds.

47. The method according to claim 46, wherein no cursor is displayed on said display screen.

48. The method according to claim 46, wherein said predetermined gesture is stored in a gesture library.

49. The method according to claim 48, wherein said gesture library includes a classification system to identify different sets of predetermined gestures.

50. The method according to claim 46, wherein said predetermined gesture is moving said handheld device a predetermined distance causes a movie displayed on said display screen to change a playback speed.

51. The method according to claim 46, wherein said predetermined gesture is moving said handheld device to cross a predetermined acceleration threshold changes a volume of a movie displayed on said display screen, wherein said volume is increased by moving said handheld device in a right to left direction and said volume is decreased by moving said handheld device in a left to right direction.

52. The method according to claim 46, wherein said predetermined gesture is moving said handheld device a predetermined distance causes a movie displayed on said display screen to fast forward at one speed.

53. The method according to claim 52, wherein moving said handheld device at twice the predetermined distance causes said movie to fast forward twice said one speed.

54. The method according to claim 46, wherein said evaluating step occurs when the user moves the handheld device to point at a specific area on said display screen.

55. A method for determining when a user intends to communicate a gesture to a user interface controlling a display screen, comprising:

outputting data associated with motion of a handheld device held by user; and

evaluating by a processing unit said motion data to determine if said gesture is a predetermined gesture;

wherein the predetermined gesture corresponds to at least one predetermined pattern of motion data stored in a memory device and said gesture is compared with said motion data to identify if said gesture is said predetermined gesture performed by the handheld device;

wherein said predetermined gesture is stored in a gesture library and said gesture library includes a classification system to identify different sets of predetermined gestures;

wherein said predetermined gesture is moving said handheld device a predetermined distance and which is interpreted by said user interface as a command which causes a movie displayed on said display screen to fast forward; and

wherein said evaluating step occurs only if predetermined motion thresholds are exceeded and predetermined motion thresholds are any of acceleration thresholds, angular thresholds, and distance thresholds.

56. The method according to claim 55, wherein no cursor is displayed on said display screen.

57. A handheld device for communicating a gesture to a graphical user interface controlling a display screen and determining when a user moving the handheld device intends to communicate said gesture and when said user moving the handheld device does not intend to communicate said gesture, comprising:

at least one sensor for outputting data associated with motion of said handheld device;

a processing unit for evaluating said motion data to determine if said gesture is a predetermined gesture;

wherein said predetermined gesture corresponds to at least one predetermined pattern of motion data stored in a memory device and said gesture is compared with said motion data to identify if said gesture is said predetermined gesture performed by the handheld device.

58. The handheld device according to claim 57, wherein no cursor is displayed on said display screen.

59. The handheld device according to claim 57, wherein said predetermined gesture is stored in a gesture library.

60. The handheld device according to claim 59, wherein said gesture library includes a classification system to identify different sets of predetermined gestures.

61. The handheld device according to claim 57, wherein said predetermined gesture is moving said handheld device a predetermined distance causes a movie displayed on said display screen to fast forward at one speed.

62. The handheld device according to claim 61, wherein moving said handheld device at twice the predetermined distance causes said movie to fast forward twice said one speed.

63. The handheld device according to claim 57, wherein said evaluating step occurs only if predetermined motion thresholds are exceeded.

64. The handheld device according to claim 63, wherein said predetermined motion thresholds are any of acceleration thresholds, angular motion thresholds, and distance thresholds.

65. The handheld device according to claim 57, wherein said evaluating step occurs when the user moves the handheld device to point at a specific area on said display screen.