CN101751119A - Method and system for realizing inputting in hand-held electronic equipment - Google Patents
Method and system for realizing inputting in hand-held electronic equipment Download PDFInfo
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Abstract
The invention discloses a method for realizing inputting in hand-held electronic equipment. A motion sensing chip sensing the motion track of the equipment is integrated in the hand-held electronic equipment. The method includes the steps: controlling the motion sensing chip to record the motion track of the equipment; reading the motion track recorded by the motion sensing chip and converting the motion track into a coordinate suitable for the size of the display window of the equipment and displaying the coordinate. The invention also discloses a system for system for realizing inputting in hand-held electronic equipment. The invention can be applied to simplify the operations and improve the input speed.
Description
Technical Field
The present invention relates to input technology, and more particularly, to a method and system for implementing input in a handheld electronic device.
Background
The input implemented in the handheld electronic device means writing text or other symbols into the handheld electronic device, for example writing text short messages or digital telephone numbers into the mobile communication terminal. The current ways to implement input in a handheld electronic device include the following: a first, traditional numeric keyboard is matched with function keys; secondly, screen handwriting is matched with a numeric keyboard; thirdly, the touch keys are matched with a numeric keyboard; fourthly, the handwriting pen is matched with function keys; and fifthly, full-screen touch operation.
Adopt all need user's both hands cooperation during above-mentioned second and fourth mode, even can adopt one-hand operation during above-mentioned first, third and fifth mode, also need press numeric keypad and function key many times just can accomplish the input, consequently no matter what kind of input mode among the prior art adopts, the operation is all more loaded down with trivial details, and the speed of input is also relatively slow.
Disclosure of Invention
A first object of the present invention is to provide a method for enabling input in a handheld electronic device, with which the operation can be simplified and the input speed can be increased.
A second object of the present invention is to provide a system for implementing input in a handheld electronic device, with which the operation can be simplified and the input speed can be increased.
The technical scheme of the invention is realized as follows:
a method for realizing input in a handheld electronic device is characterized in that a motion sensing chip for detecting the motion track of the device is integrated in the handheld electronic device, and the method comprises the following steps:
controlling a motion sensing chip to record the motion track of the equipment;
and reading out the motion track recorded by the motion sensing chip, converting the motion track into coordinates suitable for the size of a display window of the equipment, and displaying the coordinates.
A system for implementing input in a handheld electronic device, the system comprising: the motion sensing device comprises a control module, a motion sensing chip, a conversion module and a display module;
the control module is used for controlling the motion sensing chip to record the motion track of the equipment;
the motion sensing chip is used for recording the motion track of the equipment;
the conversion module is used for reading out the motion track recorded by the motion sensing chip and converting the motion track into a coordinate suitable for the size of a display window of the equipment;
and the display module is used for displaying the motion trail after the coordinate conversion in the equipment display window.
According to the technical scheme, the motion sensing chip capable of detecting the motion track of the equipment is integrated in the handheld electronic equipment, when the user needs to input the character to the handheld electronic equipment, the user does not need to press a keyboard or take a stylus pen for writing, the user only needs to directly move the equipment according to the character track to be input, the motion track of the equipment recorded by controlling the motion sensing chip is the character track to be input, then the recorded motion track is read and converted into the coordinate with the size of the display window of the equipment for displaying, the user does not need to cooperate with two hands to press the keyboard for multiple times, and other complicated operations, the input operation is simplified, and the input speed is greatly improved.
Drawings
FIG. 1 is a flow chart of a method of implementing input in a handheld electronic device in accordance with the present invention;
FIG. 2 is a flow chart of a method for implementing input in a handheld electronic device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a motion trajectory of an apparatus according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a display of a display window of an apparatus in an embodiment of the present invention;
FIG. 5 is a schematic diagram of a system for implementing input in a handheld electronic device according to the present invention.
Detailed Description
To make the objects and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and examples.
The handheld electronic equipment integrates a motion sensing chip capable of detecting the shaking displacement and amplitude. The motion sensing chip is a component existing in the prior art, and the principle of detecting the jitter displacement and amplitude is not described herein again.
FIG. 1 is a flow chart of a method for implementing input in a handheld electronic device according to the present invention, the flow chart including:
step 101: and controlling the motion sensing chip to record the motion track of the equipment.
Step 102: and reading out the motion track recorded by the motion sensing chip, converting the motion track into coordinates suitable for the size of a display window of the equipment, and displaying the coordinates.
In one embodiment, if the motion trajectory of the device can be decomposed into a plurality of strokes, the motion sensor can record the motion trajectory of the device according to the strokes, and in this embodiment, step 101 is implemented by the following sub-steps:
step 1011: and judging whether a current input starting signal is received, if so, continuing to execute the step 1012, and otherwise, returning to continue to execute the step 1011.
Step 1012: and triggering the motion sensing chip to record the motion track of the equipment.
Step 1013: judging whether a current input ending signal is received, if so, triggering the motion sensing chip to end recording the motion track, and executing the step 102; otherwise, the process returns to step 1013.
Through the steps 1011 to 1013, the device motion trajectory recorded by the motion sensing chip is a stroke. On the basis, in the present invention, step 101 may be executed once, that is, each time a stroke is recorded, step 102 is executed to display the stroke, or step 101 may be repeatedly executed until all strokes are recorded, and step 102 is executed to display all strokes, in the latter case, step 102 may be preceded by further steps of:
step 102': judging whether all input end signals are received, if so, continuing to execute the step 102; otherwise, return to execute step 1011.
The current input start signal, the current input end signal, and all the input end signals are preset different key signals, and include multiple setting modes according to actual application requirements, and specific setting examples will be given in the following embodiments.
The application scenarios of the embodiment of the present invention are assumed as follows: the handheld electronic equipment is a mobile communication terminal; the motion sensing chip is G Sensor; the number 1 key on the mobile communication terminal is preset as a shortcut key, when a user presses the shortcut key, a current input starting signal is sent out, when the user releases the shortcut key, a current input ending signal is sent out, and when the user continuously clicks the shortcut key twice, all input ending signals are sent out. In connection with this application scenario, an embodiment of the above-described flow illustrated in fig. 1 is given below. Fig. 2 is a flowchart of a method for implementing input in a handheld electronic device according to an embodiment of the present invention, where the flowchart includes:
step 201: and judging whether the current shortcut key is pressed, if so, executing the step 202, otherwise, returning to continuously judging whether the current shortcut key is pressed.
Step 202: and triggering the G Sensor to record the motion track of the mobile communication terminal.
Step 203: and judging whether the current shortcut key is lifted, if so, executing the step 204, otherwise, continuously executing the step of judging whether the current shortcut key is lifted.
Step 204: and triggering the G Sensor to stop recording the motion track of the mobile communication terminal.
In steps 201 to 204, the motion track recorded by the G Sensor between the pressing or lifting of the shortcut key is taken as a stroke.
Step 205: and judging whether the current shortcut key is continuously clicked twice, if so, executing the step 206, otherwise, returning to execute the step 201.
If the current shortcut key is clicked twice, all inputs, which may include one stroke or a plurality of strokes, are terminated on behalf of the user, via step 205.
Fig. 3 is a schematic diagram of the movement track of the device in the embodiment of the present invention, and assuming that the first stroke that the user wants to input is the letter b, the user holds the mobile communication terminal to move along the directions indicated by the thin solid line and the arrow in fig. 3 between pressing the number 1 key and releasing the number 1 key. Similarly, if a subsequent user wants to input a second stroke, the subsequent user follows the first stroke as described above.
When recording a first stroke, the G Sensor establishes a coordinate system comprising an X axis and a Y axis by taking an input starting point of a letter b as a first coordinate origin, coordinate values on the X axis and the Y axis are both millimeter, and then records coordinate values of all points in the current motion track in the coordinate system according to the sequence from the input starting point to the input ending point.
The G Sensor, when recording subsequent strokes, still follows the manner described above for recording the first stroke. Thus, all strokes recorded by the G Sensor are based on a coordinate system established by the same standard, which facilitates determination of the planar extent of all strokes in subsequent steps.
To distinguish between different strokes, the G Sensor may take a variety of forms when recording different strokes. For example, a storage space of a preset size may be left between the end recording position of one stroke and the start recording position of the next stroke; or an identifier may be inserted between the end recording position of one stroke and the start recording position of the next stroke.
Step 206: reading all strokes recorded in the G Sensor, traversing coordinates of all points of all strokes, and determining the maximum plane range of all strokes. The planar extent is a plane parallel to the display window of the device.
In this step, since the G Sensor records all strokes in a point coordinate manner, the maximum plane range is determined according to the following formula:
the minimum abscissa of the plane range is X1 ═ min (X), the minimum ordinate of the plane range is Y1 ═ min (Y), the maximum abscissa of the plane range is X2 ═ max (X), and the maximum ordinate of the plane range is Y2 ═ max (Y).
Step 207: the coordinate scaling ratio of all strokes is calculated according to the size of the display window of the device.
In this step, assuming that the device display window width is rect.width and the device display window length is rect.height, the coordinate scaling ratio is performed as follows:
if ((X2-X1)/(Y2-Y1) > rect.width/rect.height), the coordinate scaling ratio is Value ═ X2-X1)/rect.width;
if ((X2-X1)/(Y2-Y1) < rect.width/rect.height), the coordinate scaling ratio is Value ═ (Y2-Y1)/rect.height.
Step 208: all strokes are converted into coordinates of the device display window.
In this step, a coordinate system is established according to the size of the device display window, taking the upper left corner of the device display window as the second origin of coordinates as an example, the left edge of the device display window is marked as rect.left, and the above edge of the device display window is marked as rect.top, so that the new coordinates of the nth point in each stroke are marked as (xnew (n), yenew (n)), and the conversion is performed according to the following formula:
Xnew(n)＝(Xn-X1)/Value+Rect.left；
Ynew(n)＝(Yn-Y1)/Value+Rect.top。
if the abscissa value of a certain point calculated according to the above formula is larger than the width of the device display window, it indicates that this point needs to be displayed by line feed, and at this time, the final abscissa value of the point needs to be determined by subtracting the width of the device display window from the new abscissa value calculated according to the above formula. If the abscissa value of a certain point calculated according to the above formula is greater than the length of the device display window, it indicates that the point needs to be displayed by turning pages, and at this time, the length of the device display window subtracted from the new ordinate value calculated according to the above formula needs to be taken as the final ordinate value of the point.
Step 209: and respectively sending simulated screen touch messages to the operating system aiming at each stroke, wherein each message carries the conversion coordinate value of the stroke.
In this step, the simulated screen touch message for each stroke is divided into three pieces, which respectively correspond to the starting point, the middle point and the ending point of the stroke, so as to completely simulate the processes of pen falling, moving and ending. The three messages are as follows:
sending WM _ LBUTTONDOWN by a starting point; the intermediate point sends WM _ MOUSEMOVE; the end point sends WM _ lbuttonop. The specific formats of these three messages are the same as those in the prior art, and are not described here.
Step 210: and the operating system displays each stroke after the coordinates are converted according to the screen touch message.
FIG. 4 is a diagram illustrating a window display of a device according to an embodiment of the present invention.
In order to implement the method provided by the present invention, the present invention further provides a system for implementing input in a handheld electronic device, and fig. 5 is a schematic structural diagram of the system, where the system includes: the device comprises a control module, a motion sensing chip, a conversion module and a display module. Wherein,
and the control module is used for controlling the motion sensing chip to record the motion track of the equipment.
And the motion sensing chip is used for recording the motion track of the equipment.
And the conversion module is used for reading out the motion track recorded by the motion sensing chip and converting the motion track into a coordinate suitable for the size of the display window of the equipment.
And the display module is used for displaying the motion trail after the coordinate conversion in the equipment display window.
The control module controls the motion sensing chip to record the motion track of the device, and can be triggered by a preset key signal, under the condition, the control module comprises: a first control execution unit and a second control execution unit. Wherein,
and the first control execution unit is used for triggering the motion sensing chip to start recording when receiving the current input starting signal.
And the second control execution unit is used for triggering the motion sensing chip to end recording when receiving the current input end signal and triggering the conversion module to read out the motion track recorded by the motion sensing chip.
The motion sensing chip is triggered to record each time and then stops recording, and the recorded motion track is used as a stroke. On the basis, the present invention can display every time a stroke is recorded, or can display all strokes together after recording, and in order to satisfy the latter situation, the second control execution subunit includes: a first control subunit and a second control subunit. Wherein,
and the first control subunit is used for triggering the motion sensing chip to end recording when receiving the current input end signal.
The second control subunit is used for triggering the conversion module to read out the motion track recorded by the motion sensing chip when receiving all the input end signals; and when not receiving all input end signals, triggering the first control execution unit. It can be seen that the second control subunit indicates that the input is not completely ended when not receiving all the input end signals, and therefore triggers the first control execution unit to continue receiving the current input start signal, so that the input of the next stroke can be continued.
The motion sensing chip of the present invention includes: a determination unit and a recording execution unit. Wherein,
the determining unit is used for being triggered by the first control executing unit and taking a starting point in the current motion trail as a first coordinate origin; and the first control subunit in the second control execution unit triggers to stop determining the coordinate origin.
And the recording execution unit is used for sequentially recording the coordinate values of all points in the current motion track according to the sequence from the starting point to the end point after the determining unit determines the coordinate origin. If all the recorded motion tracks are displayed together as described above, the recording execution unit may leave a storage space between the different recorded strokes or insert an identifier between the different strokes to distinguish the different strokes.
The conversion module in the invention comprises: a readout unit, a plane range determination unit, a window scaling ratio determination unit, and a coordinate conversion unit. Wherein,
and the reading unit is used for being triggered by the second control subunit to read the motion track recorded by the motion sensing chip.
And a plane range determining unit for determining coordinate values of the plane ranges of all the motion trajectories read by the reading unit. The planar extent is a plane parallel to the display window of the device.
A window scaling ratio determining unit, configured to calculate a difference between a maximum abscissa value and a minimum abscissa value of the plane range divided by a difference between a maximum ordinate value and a minimum ordinate value to obtain a first result; calculating the width of the equipment display window divided by the length of the equipment display window to obtain a second result; when the first result is larger than or equal to the second result, dividing the difference of the maximum abscissa and the minimum abscissa of the plane range by the width of a device display window to obtain a window scaling ratio; and when the first result is not more than the second result, dividing the difference of the maximum ordinate and the minimum ordinate of the plane range by the length of the device display window to obtain a window scaling ratio.
A coordinate conversion unit, configured to select a second coordinate origin in the device display window, and for each point in each motion trajectory, divide a difference between an abscissa value of the point and the minimum abscissa of the plane range by a window scaling ratio, and add an abscissa value at the second coordinate origin as a new abscissa value of the point; and dividing the difference between the ordinate value of the point and the minimum ordinate of the plane range by the window scaling ratio, and adding the ordinate value at the origin of the second coordinate to obtain a new ordinate value of the point.
When the new abscissa value is larger than the width of the display window, the coordinate conversion unit is further configured to subtract the width of the display window from the new abscissa value as a final abscissa value.
When the new ordinate value is greater than the length of the display window, the coordinate conversion unit is further configured to subtract the length of the display window from the new ordinate value to obtain a final ordinate value.
In order to display the recorded motion trail on the device display window, the system of the invention further comprises: and the message sending module is connected with the coordinate conversion unit and used for sending a simulated screen touch message, wherein the message carries the coordinate values of the converted points of the motion trail. The screen touch message here may be three messages corresponding to the start point, the middle point and the end point of the current motion trajectory, as described in the above method.
In this case, the display module includes: the device comprises an analysis unit and a display execution unit. Wherein,
and the analysis unit is used for analyzing the coordinate values carried in the screen touch message.
And the display execution unit is used for displaying the analyzed coordinate values in the equipment display window.
The invention integrates the motion sensing chip capable of detecting the motion trail of the equipment into the handheld electronic equipment, when the input is needed to the handheld electronic equipment, a user does not need to press a keyboard or take a stylus for writing, and only needs to directly move the equipment according to the character trail to be input, the motion trail of the equipment recorded by the motion sensing chip is controlled to be the character trail to be input, and then the recorded motion trail is read and converted into the coordinate suitable for the size of the display window of the equipment for displaying, so that the user does not need to cooperate with two hands to press the keyboard for multiple times and other tedious operations, thereby simplifying the input operation and greatly improving the input speed.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. A method for realizing input in a handheld electronic device is characterized in that a motion sensing chip for detecting the motion track of the device is integrated in the handheld electronic device, and the method comprises the following steps:
controlling a motion sensing chip to record the motion track of the equipment;
and reading out the motion track recorded by the motion sensing chip, converting the motion track into coordinates suitable for the size of a display window of the equipment, and displaying the coordinates.
2. The method of claim 1, wherein the step of controlling the motion sensing chip to record the motion profile of the device comprises:
judging whether a current input starting signal is received or not;
if yes, triggering the motion sensing chip to record the motion track of the equipment; judging whether a current input end signal is received or not, if so, triggering the motion sensing chip to stop recording the motion track of the equipment, taking the motion track recorded by the motion sensing chip as a stroke, and continuously executing the motion track recorded by the motion sensing chip; otherwise, continuing to judge whether the current input end signal is received;
otherwise, continuing to judge whether the current input starting signal is received.
3. The method of claim 2, wherein after triggering the motion sensor chip to stop recording the motion trace of the device and before reading out the motion trace recorded by the motion sensor chip, the method further comprises:
judging whether all input end signals are received or not, if so, continuing to execute the motion track recorded by the read motion sensing chip; otherwise, returning to execute the judgment whether the current input starting signal is received.
4. The method of claim 2 or 3, wherein the step of the motion sensing chip recording the motion trajectory of the device comprises:
taking a starting point in the current motion track as a first coordinate origin;
and sequentially recording the coordinate values of all points in the motion trail according to the sequence from the starting point to the end point.
5. The method of claim 4, wherein the step of converting to coordinates suitable for a device display window size comprises:
determining the plane range coordinate values of all motion tracks recorded by the motion sensing chip, which are parallel to the equipment display window;
calculating the difference between the maximum abscissa value and the minimum abscissa value of the plane range, and dividing the difference between the maximum ordinate and the minimum ordinate by obtaining a first result; calculating the width of the equipment display window divided by the length of the equipment display window to obtain a second result;
judging whether the first result is larger than or equal to the second result, if so, dividing the difference between the maximum abscissa and the minimum abscissa of the plane range by the width of a device display window to obtain a window scaling ratio; otherwise, dividing the difference of the maximum ordinate and the minimum ordinate of the plane range by the length of the equipment display window to obtain a window scaling ratio;
selecting a second coordinate origin in the equipment display window, and aiming at each point in each motion track, dividing the difference between the abscissa value of the point and the minimum abscissa of the plane range by the window scaling ratio, and adding the abscissa value at the second coordinate origin to be used as a new abscissa value of the point; and dividing the difference between the ordinate value of the point and the minimum ordinate of the plane range by the window scaling ratio, and adding the ordinate value at the origin of the second coordinate to obtain a new ordinate value of the point.
6. The method of claim 5, wherein when the new abscissa value is greater than the width of the device display window, the new abscissa value is subtracted by the width of the device display window as a final abscissa value;
and when the new longitudinal coordinate value is larger than the length of the equipment display window, subtracting the length of the equipment display window from the new longitudinal coordinate value to serve as a final longitudinal coordinate value.
7. The method of claim 2 or 3, wherein the displaying further comprises, prior to: sending a simulated screen touch message to an operating system of the equipment, wherein the message carries the coordinate values of all the points in the motion trail after conversion;
the display is: and the operating system displays the converted coordinate values on a device display window according to the message.
8. The method of claim 7, wherein the step of sending the simulated screen touch message to the operating system of the device is:
and sending three screen touch messages to an operating system of the equipment according to each motion track, wherein the three screen touch messages respectively correspond to the starting point, the middle point and the end point of the motion track.
9. A system for enabling input in a handheld electronic device, the system comprising: the motion sensing device comprises a control module, a motion sensing chip, a conversion module and a display module;
the control module is used for controlling the motion sensing chip to record the motion track of the equipment;
the motion sensing chip is used for recording the motion track of the equipment;
the conversion module is used for reading out the motion track recorded by the motion sensing chip and converting the motion track into a coordinate suitable for the size of a display window of the equipment;
and the display module is used for displaying the motion trail after the coordinate conversion in the equipment display window.
10. The system of claim 9, wherein the control module comprises: a first control execution unit and a second control execution unit;
the first control execution unit is used for triggering the motion sensing chip to start recording when receiving a current input starting signal;
and the second control execution unit is used for triggering the motion sensing chip to end recording and triggering the conversion module to read out the motion track recorded by the motion sensing chip when receiving the current input end signal.
11. The system of claim 10, wherein the second control execution unit comprises: a first control subunit and a second control subunit;
the first control subunit is used for triggering the motion sensing chip to end recording when receiving a current input end signal;
the second control subunit is used for triggering the conversion module to read out the motion track recorded by the motion sensing chip when receiving all the input end signals; and when not receiving all input end signals, triggering the first control execution unit.
12. The system of claim 11, wherein the motion sensing chip comprises: a determination unit and a recording execution unit;
the determining unit is used for being triggered by the first control executing unit and taking a starting point in the current motion trail as a first coordinate origin; the first control subunit triggers to stop determining the first coordinate origin;
and the recording execution unit is used for sequentially recording the coordinate values of all points in the current motion track according to the sequence from the starting point to the end point after the determining unit determines the first coordinate origin.
13. The system of claim 12, wherein the conversion module comprises: a reading unit, a plane range determining unit, a window scaling ratio determining unit and a coordinate converting unit;
the reading unit is used for being triggered by the second control subunit to read the motion track recorded by the motion sensing chip;
the plane range determining unit is used for determining the coordinate values of the plane ranges of all the motion tracks read by the reading unit, wherein the coordinate values are parallel to the equipment display window;
the window scaling ratio determining unit is used for calculating the difference between the maximum abscissa value and the minimum abscissa value of the plane range and dividing the difference between the maximum ordinate and the minimum ordinate to obtain a first result; calculating the width of the equipment display window divided by the length of the equipment display window to obtain a second result; when the first result is larger than or equal to the second result, dividing the difference of the maximum abscissa and the minimum abscissa of the plane range by the width of a device display window to obtain a window scaling ratio; when the first result is less than or equal to the second result, dividing the difference between the maximum ordinate and the minimum ordinate of the plane range by the length of the device display window as a window scaling ratio;
the coordinate conversion unit is used for selecting a second coordinate origin in the equipment display window, and for each point in each motion track, dividing the difference between the abscissa value of the point and the minimum abscissa of the plane range by the window scaling ratio, and adding the abscissa value at the second coordinate origin to serve as a new abscissa value of the point; and dividing the difference between the ordinate value of the point and the minimum ordinate of the plane range by the window scaling ratio, and adding the ordinate value at the origin of the second coordinate to obtain a new ordinate value of the point.
14. The system of claim 13, wherein when the new abscissa value is larger than the width of the device display window, the coordinate conversion unit is further configured to subtract the width of the device display window from the new abscissa value as a final abscissa value;
when the new ordinate value is greater than the length of the device display window, the coordinate conversion unit is further configured to subtract the length of the device display window from the new ordinate value as a final ordinate value.
15. The method of claim 10 or 11, further comprising: the message sending module is used for sending a simulated screen touch message, wherein the message carries the coordinate values of the transformed points of the motion trail;
the display module includes: the device comprises an analysis unit and a display execution unit;
the analysis unit is used for analyzing the coordinate value carried in the screen touch message;
and the display execution unit is used for displaying the analyzed coordinate values in the equipment display window.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2480140A (en) * | 2010-05-04 | 2011-11-09 | Timocco Ltd | Tracking and Mapping an Object to a Target |
| CN102385472A (en) * | 2010-09-06 | 2012-03-21 | 深圳富泰宏精密工业有限公司 | Unlocking system and method for portable electronic device |
| CN105468173A (en) * | 2014-09-12 | 2016-04-06 | 联想(北京)有限公司 | Automatic page-turning electronic device and method for realizing off-screen handwriting input |
| CN112418213A (en) * | 2020-11-06 | 2021-02-26 | 北京航天自动控制研究所 | Vehicle driving track identification method and device and storage medium |
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2008
- 2008-12-15 CN CN200810204605A patent/CN101751119A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2480140A (en) * | 2010-05-04 | 2011-11-09 | Timocco Ltd | Tracking and Mapping an Object to a Target |
| GB2480140B (en) * | 2010-05-04 | 2014-11-12 | Timocco Ltd | System and method for tracking and mapping an object to a target |
| US9110557B2 (en) | 2010-05-04 | 2015-08-18 | Timocco Ltd. | System and method for tracking and mapping an object to a target |
| CN102385472A (en) * | 2010-09-06 | 2012-03-21 | 深圳富泰宏精密工业有限公司 | Unlocking system and method for portable electronic device |
| CN105468173A (en) * | 2014-09-12 | 2016-04-06 | 联想(北京)有限公司 | Automatic page-turning electronic device and method for realizing off-screen handwriting input |
| CN105468173B (en) * | 2014-09-12 | 2019-01-15 | 联想(北京)有限公司 | Realize the electronic equipment and method of the automatic page turning of off screen handwriting input |
| CN112418213A (en) * | 2020-11-06 | 2021-02-26 | 北京航天自动控制研究所 | Vehicle driving track identification method and device and storage medium |
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Application publication date: 20100623 |