Patent Application
20130215039
1. Field of the Invention
The present invention relates to a prompting device and a prompting method thereof, and more particularly to a prompting device for an optical finger navigation sensor, a prompting method thereof and a prompting system.
2. Description of the Prior Art
An optical finger navigation (OFN) sensor is a derivative product of an optical mouse. The principle of the OFN sensor is that: the infrared light emitted by an infrared LED (Light Emitting Diode) is refracted by a prism and then passes through an infrared filter to a user's finger, then the infrared light can be reflected by the finger to pass through the optical lens to arrive at a sensor to form an image, and a special DSP (Digital Signal Microprocessor) is used to analyze the difference between the images output at different time thereby for judging the moving direction and the moving distance and determining the finger position.
The OFN may be applied to a keypad and a QWERTY keyboard of a mobile phone. The function of the OFN sensor is similar to a red button of the IBM and Toshiba notebooks, which has a touch function and may be controlled to select by one single finger. Because the OFN sensor has many features of high positioning precision, a light and thin module, the operating habit of being similar to the prior mouse and so on. The application scope of the OFN sensor is gradually expanded to the relative products, such as a smart phone, a MP4/MP3, a MID (Mobile Internet Device), a remote controller, a laptop computer and so on.
However, there is no any prompt when the prior OFN sensor is in use. For the user who is not familiar with the operating characteristic, to use in the initial will often encounter many difficulties. If the OFN sensor can provide some necessary message to prompt the user, this will provide a huge convenience for the user. But now, such products still do not appear in market.
An object of the present invention is to provide a prompting device for an optical finger navigation sensor, a prompting method thereof and a prompting system for solving above problems.
To achieve the above object, in accordance with the present invention, a prompting device for an optical finger navigation sensor is provided, comprising at least one light-emitting unit. The light-emitting unit is disposed around the optical finger navigation sensor.
Preferably, the light-emitting unit is annular and surrounds the optical finger navigation sensor.
Preferably, the quantity of the light-emitting unit is two, which are respectively disposed on two sides of the optical finger navigation sensor.
Preferably, the light-emitting unit is a blue light source or a green light source.
To achieve the above object, in accordance with the present invention, a prompting method of a prompting device for an optical finger navigation sensor is also provided, comprising the following steps of:
1) employing an operating system to send out an order signal according to a task of being currently performed;
2) determining by the operating system whether to need to prompt a user for the order signal, and if need to prompt, performing a step of 3);
3) emitting out an indication light by the prompting device according to the order signal;
4) judging whether the user performs an action, and if the optical finger navigation sensor senses that the user performs the action in a predetermined time, performing a step of 5); and
5) reporting the performing position and the performed action and transmitting these messages back to the operating system by the optical finger navigation sensor.
In the step of 2), if the operating system determines that the user need not be prompted for the order signal, the prompting device of the optical finger navigation sensor will not prompt the user.
In the step of 4), if the optical finger navigation sensor does not sense that the user performs the action in the predetermined time, the optical finger navigation sensor will report the message of no action being performed by the user to the operating system.
To achieve the above object, in accordance with the present invention, a prompting system is further provided, comprising:
an operating system sending out an order signal according to a task of being currently performed and determining whether to need to prompt a user for the order signal;
a prompting device emitting out an indication light according to the order signal; and
an optical finger navigation sensor sensing that the user performs an action, reporting the performing position and the performed action and transmitting these messages back to the operating system.
Based on the above description, the prompting device of the present invention employs the light-emitting unit to be disposed around the optical finger navigation sensor. The optical indication of the light-emitting unit can prompt the user to perform the next action, thereby providing a convenience for the user.
For more clearly and easily understanding above object or other objects, the feather and the advantage of the present invention, the following text will take a preferred embodiment of the present invention with reference to the accompanying drawings for detail description as follows.
The following embodiment with reference to the accompanying drawings now has been given for detail describing the technology, the feature, the object and the effect of the present invention.
Please refer to
The above light-emitting unit 2 preferably adopts a blue light source or a green light source. Of course, the light-emitting unit 2 also may adopt other light source, such as a red light source or a yellow light source, according to the actual demand of the user. In the present invention, the electrical device can supply the power to the light-emitting unit 2, and can control the working state of the light-emitting unit 2. The electrical circuit of the light-emitting unit 2 can be designed by the person of ordinary skill in the art, so it need not be specifically described here.
Please refer to
Referring to
The step of S10 is a step of employing the operating system 3 to send out an order signal according to a task of being currently performed. For example, when the user performs the installation process, the user needs to confirm the installation process, such as select a system button of enter or cancel so that the operating system 3 can send out the order signal.
The step of S20 is a step of determining by the operating system 3 whether to need to prompt the user for the order signal, and if it needs to prompt, performing the step of S30.
The step of S30 is a step of emitting out an indication light by the prompting device of the OFN sensor 1 according to the order signal. Namely, according to the order signal, the user can be prompted to perform or confirm each action of this task. Specifically, the light-emitting unit 2 emits out an indication light, such as a continuous green light for prompting the user to confirm. After the completion of performing the step of S30, the step of S40 will be performed.
The step of S40 is a step of judging whether the user performs the action, and if the user performs the action in a predetermined time, then performing a step of S50.
The step of S50 is a step of reporting the performing position and the performed action and transmitting these messages back to the operating system by the OFN sensor 1. For example, in the predetermined time, if the OFN sensor 1 senses that the user has clicked the button about the action, the OFN sensor 1 will report the clicking position and the clicked action to the operating system 3. Accordingly, the operating system 3 can know whether the process needs to continuously proceed or be canceled.
In the step of S20, if the operating system confirms that the user need not be prompted for the order signal, the prompting method will perform a step of S25. The step of S25 is that the prompting device of the OFN sensor 1 does not prompt the user. Namely, no the indication light is emitted out.
In the step of S40, if the OFN sensor 1 does not sense that the user performs the action in the predetermined time, the prompting method will perform a step of S45. The step of S45 is that the OFN sensor 1 reports the message of no action being performed by the user to the operating system 3. For example, in the predetermined time, if the user does not click the enter button, the OFN sensor 1 will report the message of the enter button of not being clicked to the operating system 3.
Please refer to
In the prompting system of the present invention, the prompting device 2 will not prompt the user if the operating system 3 ascertains that the user need not be prompted for the order signal.
In the prompting system of the present invention, the OFN sensor 1 will report the message of no action being performed by the user to the operating system 3 if the OFN sensor 1 does not sense that the user performs the action in a predetermined time.
Moreover, when the electrical device, such as the palmtop mobile internet device and so on has an indication of system status or receives the outside information (such as news in brief or push information), it can adopt the prompting device of the OFN sensor 1 to prompt the user.
It can be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
