CN101533572A - Laser projector pen with the ability to sense gestures that are related and representative of a function - Google Patents

Abstract

A laser projection pen with the capability of sensing related gestures representing a function comprises a light-emitting unit, a sensing unit, a control unit and a communication unit. The light emitting unit is used for emitting laser light; the sensing unit is used for sensing a group of accelerations formed by at least one acceleration of the gesture and sending an acceleration group signal; the control unit is used for receiving and sending the acceleration group signal, or sending the acceleration group signal after processing; the communication unit is used for receiving and sending the acceleration group signal or the processed acceleration group signal through a communication channel, and enabling the electronic device to judge the gesture according to the acceleration group signal or the processed acceleration group signal and execute the function.

Description

Laser projection pen with the ability to sense gestures that are relevant and represent a function

technical field

The invention relates to the field of laser projection pens, in particular to a laser projection pen capable of sensing related gestures representing a function.

Background technique

The laser projection pen is often used in speeches, and the speaker uses the laser projection pen to indicate the content projected on the screen. However, when using a laser projection pen to make a speech, the speaker needs to manipulate the computer projecting the speech content at the same time to change pages on the projected content on the screen, or to move the cursor to the text and other content. In some lecture rooms, the speaker It is even inconvenient to ask a person to be responsible for handling these computer operations.

From this point of view, if it is more convenient to operate the laser projection pen and computer actions at the same time, it will be much easier for the speaker to make a speech.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, an object of the present invention is to propose a laser projection pen with the ability to sense gestures related to and representing a function, so that the speaker can conveniently operate the laser projection pen and its associated gesture at the same time. Compatible computer.

Another object of the present invention is to provide a laser projection pen capable of sensing related gestures representing a function, so that the speaker can conveniently operate the laser projection pen and the specific functional electronic device used with it at the same time.

In the present invention, the laser projection pen capable of sensing related gestures representing a function includes a light emitting unit, a sensing unit, a control unit and a communication unit. The light-emitting unit is used to emit a laser light; the sensing unit is used to sense a group of accelerations composed of at least one acceleration of the gesture, and send an acceleration group signal; the control unit is used to receive and send the acceleration group signal, or send a processed acceleration group signal after processing; the communication unit is used to receive and send the acceleration group signal or the processed acceleration group signal through a communication channel, for an electronic device to receive and make the electronic device The device determines the gesture and executes the function according to the acceleration set signal or the processed acceleration set signal.

In a preferred embodiment, the laser projection pen capable of sensing related gestures representing a function further includes a key unit including at least one key, for receiving a command representing a function issued by a user , and form a key signal according to the command, and transmit the key signal to the control unit, and the control unit interprets the key signal as a command signal, and sends a command signal to be transmitted to the electronic device through the communication unit device, and cause the electronic device to execute the command.

In a preferred embodiment, the control unit receives the key signal sent by the key unit and the acceleration group signal sent by the sensing unit, and sends out a composite signal according to the key signal and the acceleration group signal as the processed Acceleration group signal. In a preferred embodiment, the acceleration group signal or the composite signal is interpreted by the control unit to output a function signal as the processed acceleration group signal for the electronic device to receive. In another preferred embodiment, the acceleration group signal or the composite signal is interpreted by the electronic device to output a function signal as the processed acceleration group signal for the electronic device to receive.

The effect of the present invention is that, by using the present invention, the speaker can simultaneously operate the laser projection pen, the computer and other electronic devices with a micro-control unit in a more convenient way when making a speech in conjunction with the projected content.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is a schematic diagram of a lecturer projecting a speech content on a screen and indicating the speech content by using a laser projector pen capable of sensing related gestures representing a function of the present invention and cooperating with an electronic device; and

FIG. 2 is a functional block diagram of a laser projector pen capable of sensing related gestures representing a function of the present invention;

3A and FIG. 3B are respectively a first embodiment schematic diagram of a look-up table in a driver software and a control unit; and

4A and 4B are schematic diagrams of a second embodiment of a look-up table in a driver software and a control unit, respectively.

Among them, reference signs

11 Laser projection pen 12 Electronic device

13 Screen 14 Projection content

15 Projection point 20 Laser projection pen

21 Light emitting unit 22 Sensing unit

23 Control unit 24 Communication unit

25 Communication channel 26 Key unit

30, 40 Driver software 31, 41 Lookup table

Detailed ways

The present invention is a laser projection pen capable of sensing related gestures representing a function. The laser projection pen is held by the user during a speech and can be directly used by the user to hold the hand holding the laser projection pen. Gestures are used to control an electronic device such as a computer that cooperates with the laser projection pen to make a speech, and for this purpose to control the projected speech content or events related to the speech. The preferred embodiments will be detailed below in conjunction with the accompanying drawings. Add explanation.

Figure 1 is a schematic diagram of a user holding a laser projection pen to indicate the content projected on a screen by an electronic device such as a computer, wherein the number 11 is the laser projection pen, 12 is the electronic device, 13 is the screen, 14 is the projected content of the electronic device 12 on the screen 13 , and 15 is an indication point of the projected content 14 on the screen 13 by the laser projection pen 11 .

FIG. 2 is a functional block diagram of a laser projection pen capable of sensing related gestures representing a function of the present invention. As shown in FIG. 2 , the laser projection pen 20 includes a light emitting unit 21 , a sensing unit 22 , a control unit 23 and a communication unit 24 .

The light-emitting unit 21 emits a laser light, and the laser light can be controlled by a laser light signal S1 sent by the control unit 23, or sent out independently of the control unit 23 (although the light-emitting unit 21 is indicated as the control unit 23 in the figure issued) to indicate the content projected by an electronic device used in conjunction with the laser projection pen 20 .

The sensing unit 22 is used to sense the gesture of the user's hand holding the laser projection pen 20 by sensing at least one acceleration presented by the user's hand, and is composed of an acceleration sensor. The at least one acceleration constitutes a group of accelerations, and the sensing unit 22 sends an acceleration group signal Sa according to the group of accelerations.

Next, the control unit 23 receives the acceleration set signal Sa, and directly sends the acceleration set signal Sa, or sends a processed acceleration set signal Sap after processing the acceleration set signal Sa.

Then, the communication unit 24 receives and sends the acceleration group signal Sa or the processed acceleration group signal Sap, and sends it out through a communication channel 25, wherein the above-mentioned processing of the acceleration group signal Sap will be described later. At this time, an electronic device can receive the signal Sa or Sap and execute the function. The communication unit 24 can be a wireless communication unit or a wired communication unit, wherein the wireless communication unit can be one of an infrared unit, a bluetooth unit and a radio frequency unit, or even any communication unit developed in the future; and the wired communication unit It is used to communicate with the electronic device through a cable. The electronic device can be a computer or an electronic device with a micro-control unit and the communication unit, and the function is a previously preset function, such as jumping to the next page of the file, jumping to the previous page of the file, cursor Move, turn on lights, play sounds, etc. The most typical person of this electronic device is a computer, because the speaker often cooperates with the computer to project the content of the speech to give a speech, but the electronic device can also be other devices, such as a lamp in the speech site, or a speaker group, as long as The electronic devices such as the lamp and the horn set can be added with a micro control unit and a communication module.

Therefore, the orator can use the laser projection pen to indicate the projection content and manipulate the electronic device for projecting the speech content at the same time when giving a speech, so the speech of the orator becomes easy, and there is no need for a dedicated person to operate the electronic device presence of personnel.

In one embodiment, a driver software storing a lookup table is installed in the electronic device, as shown in FIG. 3A . In the driver software 30, the look-up table 31 stores a mapping relationship describing several acceleration group signals and the several function signals, for interpreting the acceleration group signal Sa sent by the control unit 23 into a function signal, and the The interpreted function signal is regarded as the above-mentioned processed acceleration group signal Sap, and the driver software 30 executes the corresponding function on the electronic device according to the function signal. In a different embodiment, the control unit 23 includes a look-up table, as shown in FIG. 3B . The look-up table 31 stores an image relationship describing several acceleration group signals and the corresponding several function signals, and the control unit 23 also interprets a function signal for the received acceleration group signal Sa from the look-up table , and the function signal is regarded as the above-mentioned processed acceleration group signal Sap. At this time, the driving software 30 executes the corresponding function on the electronic device according to the function signal.

In addition, the laser projection pen 20 may further include a button unit 26, the button unit 26 includes at least one button, used to receive a command representing a function issued by a user, and form a button signal Sb according to the command, and send The key signal Sb is sent to the control unit 23 . Then, the control unit 23 interprets the key signal Sb as a command signal Sc, and sends the command signal Sc to be transmitted to the electronic device through the communication unit 24, and makes the electronic device execute the function corresponding to the command.

In one embodiment, the control unit 23 receives the key signal Sb sent by the key unit 26 and the acceleration group signal Sa sent by the sensing unit 22, and then sends out the processed signal according to the key signal Sb and the acceleration group signal Sa. Acceleration group signal Sap. That is, the signals Sb and Sa sent by the key unit 26 and the sensing unit 22 are used together and combined into a composite signal Sh to control the execution of a function on the electronic device. In one embodiment, the control unit 23 enables the sensing unit 22 to perform sensing after receiving the key signal Sb of the key unit 26 . In the present invention, if the key unit 26 does not send a key signal Sb, the acceleration group signal purely from the sensing unit 22 is also called the composite signal Sh, and the "processed" acceleration signal Sap of the processed The meaning may include processing through one or both of the above-mentioned mapping and compounding.

At this time, the look-up table 41 of the driver software 40 installed in the electronic device stores an image relationship describing several composite signals and several functions (as shown in FIG. The received composite signal Sh sends a functional signal, and the functional signal is now regarded as the above-mentioned processed acceleration set signal Sap. In a different embodiment, the control unit 23 includes a look-up table 41, and the look-up table 41 stores a mapping relationship describing several composite signals and several functions (as shown in FIG. 4B ), and the control unit 23 A function signal is also interpreted from the received acceleration set signal Sa by the look-up table 41 , and the function signal is regarded as the above-mentioned processed acceleration set signal Sap at this time.

In the above, the function represented by the command received by the button unit 26 can also be preset functions such as going to the next page of the file, going to the previous page of the file, moving the cursor, turning on the light and playing a sound, or may also include other functions.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. A laser projection pen with the ability to sense gestures that are relevant and represent a function, characterized in that it comprises: a light emitting unit for emitting a laser light; A sensing unit, used to sense a group of accelerations composed of at least one acceleration of the gesture, and send an acceleration group signal; a control unit for receiving and sending the acceleration group signal, or sending a processed acceleration group signal after processing; A communication unit, used to receive and send the acceleration group signal or the processed acceleration group signal through a communication channel, to be received by an electronic device, and to make the electronic device determine the acceleration group signal or the processed acceleration group signal according to the acceleration group signal or the processed acceleration group signal gesture and perform the function. 2. The laser projector pen capable of sensing gestures related to and representing a function according to claim 1, wherein said electronic device is installed with a driver software storing a lookup table, and the The look-up table describes the mapping relationship between several acceleration group signals and several function signals, and is used to interpret a function signal from the received acceleration group signal as the processed acceleration group signal. 3. The laser projection pen with the ability to sense gestures related to and representing a function according to claim 1, wherein said control unit comprises a lookup table, and there is a description in the lookup table The image relationship between the acceleration group signal and several function signals, and the control unit interprets a function signal from the received acceleration group signal by the look-up table as the processed acceleration group signal for the electronic device to receive. 4. The laser projection pen with the ability to sense gestures related to and representing a function according to claim 1, wherein the communication unit is a wireless communication unit or a wired communication unit, and the wireless communication unit It is one of the following groups: an infrared unit, a bluetooth unit and a radio frequency unit, and the wired communication unit is used to communicate with the electronic device through a cable. 5. The laser projector pen capable of sensing gestures related to and representing a function according to claim 1, wherein the function is a previously preset function, and the function is one of the following groups One: Jump to the next page of the file, jump to the previous page of the file, move the cursor, turn on the light and play the sound. 6. The laser projector pen capable of sensing related gestures representing a function according to claim 1, further comprising: A key unit, including at least one key, is used to receive a command representing a function issued by a user, and form a key signal according to the command, and transmit the key signal to the control unit, and the control unit interprets The button signal is a command signal, and the command signal is sent through the communication unit, so as to be received by the electronic device and executed by the electronic device. 7. The laser projector pen capable of sensing related gestures representing a function according to claim 6, wherein the control unit receives the key signal from the key unit and the signal from the sensing unit. Acceleration group signal, and according to the button signal and the acceleration group signal, a composite signal is sent as the processed acceleration group signal. 8. The laser projection pen capable of sensing related gestures representing a function according to claim 7, wherein the control unit causes the sensing unit to perform sensing after receiving the key signal. The processed acceleration group signal is then issued. 9. The laser projection pen capable of sensing related gestures representing a function according to claim 7, wherein said electronic device is installed with a drive software storing a look-up table, and the The look-up table stores an image relationship describing several composite signals and several function signals, and the driver software interprets a function signal from the received composite signal according to the look-up table as the processed acceleration group signal. 10. The laser projector pen capable of sensing gestures related to and representing a function according to claim 7, wherein said control unit comprises a lookup table, and a description of several The mapping relationship between the composite signal and several functional signals, and the control unit interprets a functional signal from the received composite signal as the processed acceleration group signal through the look-up table.

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