TWI424736B - Non-fixed frequency synchronous 3d shutter glasses receiving and sending system - Google Patents

Description

Non-fixed frequency synchronous 3D shutter glasses transceiver system

The invention relates to a 3D shutter glasses signal transceiving system, in particular to a non-fixed frequency synchronous 3D shutter glasses transceiver system

3D stereoscopic image is the ultimate pursuit of human imagery. In the case of static images, if the series is printed on the 2D surface, the stereoscopic newspaper, stereoscopic painting, and stereoscopic image have been developed by the distribution of primitives and laser printing technology. Advertising, etc., if it is a dynamic image, it must be achieved by the user carrying 3D glasses, and the application range of the 3D glasses is very wide. The most common use is to watch stereoscopic movies and play stereo games, with the advancement and time of technology. The 3D technology will become more mature and popular, and 3D glasses will surely enter thousands of households, giving everyone a different 3D stereoscopic experience.

The shutter type 3D technology is favored by manufacturers because it can provide high-quality 3D display effect. The principle of 3D shutter glasses is to receive the signal transmitted from the image end, and simultaneously open and close according to the different timings of the image frequency by the two eyes. To achieve this, by quickly increasing the fast frequency of the picture to replace the image and maintaining the same number of frames as the 2D video, the viewer's two eyes see different images that are quickly switched, and create an illusion in the brain that can be viewed. Stereoscopic image.

However, the signal transceiving system of the conventional 3D shutter glasses is a fixed-frequency synchronization system, which is synchronized with the tone before the image projection device and the 3D shutter glasses are used, that is, there must be a specific transmitting and receiving device, and such a device The unique configuration of the device, the cost is not too high, and the fixed-frequency 3D shutter glasses, that is, the image is viewed at a fixed frequency, and generally, when the frequency is opposite, the frequency of the initial correspondence cannot reach 100% correspondence, often A certain degree of difference, large or small, such a drop, after a period of time, there will be accumulated error, that is, the frequency of the image projection device and the shutter opening and closing frequency of the 3D shutter glasses will be different, thus causing the image Blinking, even unable to stereoscopically image, seriously affecting the effect of viewing; currently, in order to solve this problem, the operator will periodically send a synchronization signal, such as in the example time sequence of synchronization {10, 10, 10, 10, 10, 10, 10,10,...}, in its fixed time sequence length, it is still transmitted in the manner of paired synchronous fixed frequency, so it is necessary to transmit the synchronization signal all the time to avoid the error in the frequency, so It is easy to capture for other shutter glasses when it is transmitted in a certain frequency. When any sync shutter glasses intercepts this sync signal, it can correct the synchronization and easily view the sent image information, so that the image emitted by the transmitter is used. By visually combining the stereoscopic images, it is impossible to prevent the snooping and interception of other outsiders or shutter glasses of the same brand or other cottage cards, so that it is necessary for improvement.

An object of the present invention is to provide a non-fixed-frequency synchronous 3D shutter glasses transceiver system capable of frequency-adjusting between an image projection device and 3D shutter glasses to ensure signal synchronization and prevent snooping by others.

Another object of the present invention is to provide a non-fixed-frequency synchronous 3D shutter glasses transceiver system, such that the image projection device has exclusive 3D shutter glasses, and can effectively prevent Stop the pirated version of the mountain glasses and pry into the interception of the sync signal to use.

In order to achieve the above object, the non-fixed-frequency synchronous 3D shutter glasses transceiver system of the present invention comprises a synchronization signal unsteady transmission module and a synchronization signal receiving module, and the synchronization signal unsteady transmission module is disposed on the 3D image projection device. The synchronization signal undetermined transmission module emits a synchronization correction parameter from time to time, and the synchronization correction parameter includes a correction code; the synchronization signal receiving module is disposed on the 3D shutter glasses, and the synchronization signal receiving module has A decoder decodes the correction code of the synchronization correction parameter, and adjusts the shutter opening and closing frequency of the 3D shutter glasses to be synchronized with the frequency of the image projection.

Further, the synchronization correction parameter further includes a confirmation code to confirm whether the 3D shutter glasses and the image projection device are used together, that is, whether the two products are the same brand or products of the same frequency.

Through the above structure, the shutter opening and closing frequency of the 3D shutter glasses is synchronized with the signal frequency of the image projection device, so that the viewed image is kept clear and not blurred, and the conventional 3D shutter glasses system is avoided, and the sneak peek is insufficient. And the synchronization parameter signal is defined in the protocol layer. Since it is defined in the protocol layer, after receiving the synchronization signal receiving module, the synchronization signal receiving module immediately turns on the synchronization signal unsteady transmission module through the protocol layer. The correction code changes the shutter frequency of the synchronization signal receiving module, so that the 3D image projection device should have 3D shutter glasses, and prevent the 3D shutter glasses of the cottage version, snooping and capturing the synchronization signal to view the 3D image, Maintain the irreplaceability of the 3D shutter glasses.

In order to enable the reviewing committee to further understand the features of the present invention and other objects, the preferred embodiments are illustrated in the following detailed description, but the embodiments illustrated in the drawings are for illustrative purposes and are not intended for the patent application. The only limit.

Referring to FIG. 1 and FIG. 2, the present invention includes: a synchronization signal undefined transmission module 10 disposed on a 3D image projection device 1 or in a transmission box batched with the 3D image projection device 1 The synchronization signal undefined transmission module 10, as shown in FIG. 3, includes: a power connection port 101 connected to the power source, and an image signal transfer port 102 connected to the display screen of the 3D image projection device 1 for intercepting The frequency of the image is displayed, and an encoder 103 is electrically connected to the power port 101 and the image signal port 102 to convert the frequency intercepted by the display screen into a synchronization correction parameter 11, and the synchronization correction is performed. The parameter includes a confirmation code 110 and a correction code 111, wherein the confirmation code 110 is an identification code, so that the 3D image projection device 1 and the 3D shutter glasses 2 can be directly paired and decoded corresponding to the synchronizer, and the correction code 111 Then, it is a time sequence ON/OFF control code; a transmitter 104 is electrically connected to the encoder 103 to thereby transmit the aforementioned synchronization correction parameter 11 to the outside. A synchronizing signal receiving module 20 is disposed on the 3D shutter glasses 2. The synchronizing signal receiving module 20 has a power source 201. The power source 201 is a battery, and the power source 201 is electrically connected to a receiver 202 and a decoder. The receiver 203 receives the signal transmitted by the asynchronous signal transmitting module 10, and the signal is the synchronization correction parameter 11, and the decoder 203 decodes and confirms the synchronization correction parameter 11. The decoder 203 is further electrically connected to a control port 204, and the control port 204 is connected to the shutter control signal receiving end of the 3D shutter glasses 2 to send a signal to the 3D shutter glasses 2 for frequency synchronization adjustment. By.

The overall synchronization adjustment process includes: a first step: output synchronization correction parameter 11: the synchronization signal transmission module 10 is transmitted to the 3D image projection device 1 via the aforementioned image signal transmission port 102. The image frequency displayed in the screen is outputted by the encoder 103 with the synchronization correction parameter 11 having the confirmation code 110 and the correction code 111; the second step: transmitting 12: transmitting the indefinite frequency in different module modes, such as: For example, {(9,11),(9,11),(9,11),(9,11),...}, the time sequence is cyclically transmitted in 9 unit time and 11 unit time. And the correction code 111 corresponding to the time sequence is {(+1,-1), (+1,-1),,...} to correct the frequency synchronously; or three kinds of time sequence loop synchronization Frequency transmission, ie {(9,10,11),(9,10,11),(9,10,11),...}, the time sequence is 9, 10, 11 unit time Sequential pairing of cyclic transmissions, or even random random number of random numbers {9,11,10,10,12,8,9,11,8,...}, that is, the number of units in different units The transmission is performed at intervals, and the correction code 111 reaches the purpose of the indefinite frequency transmission.

The third step: receiving 21: the synchronization correction parameter 11 transmitted by the aforesaid transmission 12 is sent to the decoder 203 via the receiver 202 of the synchronization signal receiving module 20, wherein the transmission 12 and the reception 21 are The end uses a communication protocol such as Zigbee/Bluetooth/Infrared/RF/WiFi/Wireless USB... or a matching hardware architecture to facilitate mutual connection.

The fourth step: decoding 22: unblocking the confirmation code 110 and the correction code 111 of the synchronization correction parameter 11, and performing the following steps in sequence; the fifth step: confirming 23: confirming that the synchronization signal is paired via the confirmation code 110 After receiving the module 20, the sixth step: sending the correction code 24: the correction code 111 is sent from the control port 204 to the shutter control unit of the 3D shutter glasses 2 to perform the controller of the shutter synchronization.

Referring to the figure, when the synchronization signal receiving module 20 receives the signal transmitted by the synchronization signal of the asynchronous signal transmitting module 10, the decoder 21 decodes the confirmation code 110 to facilitate subsequent procedures. Carry out, including: match or not? 30: It can be determined whether the synchronization signal receiving module 20 matches the synchronization signal unsteady transmitting module 10, that is, whether the two products belong to the same brand or the same frequency, and if the decoder 21 cannot 110 decoding, it is determined that the synchronization signal receiving module 20 does not match the synchronization signal unsteady transmission module 10, so the 3D shutter glasses are not able to work correctly 31; if the decoder 21 can When the confirmation code 110 is decoded, it is determined that the synchronization signal receiving module 20 matches the synchronization signal unsteady transmission module 10, and then the following correction procedure 32 is performed; then the decoder 21 further decodes the correction code 111. The correction code 111 directly adjusts the shutter opening/closing frequency of the 3D shutter glasses 2 to the image projection device signal synchronization 240 via the above-described operation of sending the correction code 24, thereby adjusting the signal to be synchronized.

The synchronization correction parameter 11 may also only include the correction code 111, and thus, After the signal arrives at the synchronization signal receiving module 20, the decoder 21 directly decodes the correction code 111, and adjusts the shutter opening and closing frequency of the 3D shutter glasses to be synchronized with the frequency of the video projection device.

The synchronization parameter signal 11 is defined in the protocol layer. Since the synchronization signal receiving module 20 receives the signal, the synchronization signal receiving module 20 immediately turns on the synchronization signal unsteady transmission module 10 through the protocol layer. And the correction frequency 111 changes the receiving frequency of the synchronization signal receiving module 20, so that the 3D shutter glasses and the image projection device maintain signals synchronization.

Through the above structure, the synchronization signal outputting module 10 and the synchronization signal receiving module 20 perform an untimed frequency, so that the shutter frequency of the 3D shutter glasses is synchronized with the signal frequency of the image projection device, so that Ensure that the viewed image remains clear and not blurred, avoiding the insufficiency of the conventional 3D shutter glasses synchronization signal being snooped; and the structure of the present invention makes the 3D image projection device have a special 3D shutter glasses, and prevent the cottage version. He used 3D shutter glasses to snoop on the sync signal to view the 3D image to maintain the irreplaceability of the 3D shutter glasses.

1‧‧‧3D image projection equipment

2‧‧‧3D shutter glasses

10‧‧‧Synchronous signal undefined frequency transmitting module

101‧‧‧Power connection埠

102‧‧‧Image signal transfer埠

103‧‧‧Encoder

104‧‧‧transmitter

11‧‧‧Synchronization correction parameters

110‧‧‧Confirmation code

111‧‧‧Revised code

12‧‧‧ launch

20‧‧‧Synchronous signal receiving module

201‧‧‧Power supply

202‧‧‧ Receiver

203‧‧‧Decoder

204‧‧‧Control 埠204

21‧‧‧ Receiving

22‧‧‧Decoding

23‧‧‧Confirm

24‧‧‧Send the correction code

240‧‧‧Signal synchronization

30‧‧‧ Match or not?

31‧‧‧Cannot work correctly

32‧‧‧Amendment procedure

Figure 1 is a block diagram of the system of the present invention.

Figure 2 is a schematic diagram of the external hardware architecture of the present invention.

FIG. 3 is a schematic diagram of the architecture of the synchronous signal unsteady transmitting module of the present invention.

Figure 4 is a schematic diagram of the architecture of the synchronous signal receiving module of the present invention.

Figure 5 is a schematic diagram of the decoding detail process of the present invention.

10. . . Synchronous signal undefined frequency transmitting module

11. . . Synchronization correction parameter

110. . . Confirmation code

111. . . Correction code

12. . . emission

20. . . Synchronous signal receiving module

twenty one. . . receive

twenty two. . . decoding

twenty three. . . confirm

twenty four. . . Send correction code

Claims (3)

A non-fixed-frequency synchronous 3D shutter glasses transceiver system includes: a synchronization signal unsteady transmission module disposed in a 3D image projection device or in a transmission box batched with the 3D image projection device, the synchronization signal is an indefinite frequency emission mode The group unscheduledly emits a synchronization correction parameter, the synchronization correction parameter includes a correction code; a synchronization signal receiving module is disposed on the 3D shutter glasses, the synchronization signal receiving module has a decoder, and the synchronization correction parameter The correction code is decoded, and the shutter opening and closing frequency of the 3D shutter glasses is adjusted to be synchronized with the frequency of the image projection. The non-fixed-frequency synchronous 3D shutter glasses transceiver system according to claim 1, wherein the synchronization correction parameter further includes a confirmation code to confirm whether the 3D shutter glasses and the 3D image projection device are used together. The non-fixed-frequency synchronous 3D shutter glasses transceiver system according to claim 1, wherein the synchronization parameter signal is defined in a protocol layer, and since it is defined in a protocol layer, the synchronization signal receiving module receives Immediately through the agreement layer, the synchronization signal unsteady transmission module is connected to the same protocol, and the synchronization frequency of the synchronization signal receiving module is changed by the correction code, so that the 3D shutter glasses and the image projection device maintain the signal synchronization, and the synchronization signal is prevented. Being peeped and captured.