The invention of claim 1 (equivalent to the claim in China patent document) comprises a signal receiving device and a laser pen, wherein the signal receiving device comprises a receiving processing loop and a camera connected with it; the laser pen comprises a headlamp transmitter assembly and a laser pen loop; and the signal receiving device is internally provided with a synchronous signal receiver connected with the receiving processing loop. At the same time, the image sensor in the camera can be exposed globally, and the laser pen is equipped with a synchronous signal transmitter corresponding to the synchronous signal receiver. The laser pen emits light in the form of pulses. As for the electronic whiteboard system of the synchronous laser pen, compare the structure of the invention 1 (see abstract, paragraph numbers [0042]-[0055]), in which the light emitting part of the pen tip emits synchronous signals in the infrared band, and it also has a light receiving part.
However, the invention in claim 1 is slightly different in the synchronization method, and ordinary technicians can easily obtain this difference by comparing the structure in which a synchronization signal is transmitted according to infrared rays at the position detection device side and the structure in which light is emitted within the time of aligning the synchronization signal under the instruction of the light receiving part in invention 2. Therefore, based on the combination of comparative invention 1 and 2, the invention of claim 1 is easily invented by ordinary technicians.
The additional structure in the inventions of claims 2 to 4 is the structure related to the synchronous signal transmitter, which can be easily obtained from the comparison of the synchronous signal transmission structure at the pen tip of the invention 1 and the comparison of the synchronous signal transmission structure according to infrared rays on the position detection device side of the invention 2.
The invention of claim 5 comprises a signal receiving device and a laser pointer, wherein the signal receiving device comprises a receiving processing loop, a camera and a synchronous signal transmitter; The laser pen comprises a headlamp transmitter component and a laser pen loop; The camera and the synchronous signal transmitter are both connected with the receiving and processing loop; The image sensor in the camera is an image sensor capable of global exposure; A synchronous signal transmitter in the laser pen is connected with the receiving and processing loop, and there is also a synchronous signal receiver corresponding to the synchronous signal transmitter in the laser pen, and the laser pen emits light in the form of pulses. As for the electronic whiteboard system of synchronous laser pen, the structure of 1 (refer to abstract, paragraph numbers [0042]-[0055]) is compared, in which the luminous part of the pen tip emits synchronous signals in infrared band, and
However, the invention in claim 5 is slightly different in the synchronization method, and ordinary technicians can easily obtain this difference by comparing the structure in which a synchronization signal is transmitted according to infrared rays on the position detection device side and the structure in which light is emitted within the time of aligning the synchronization signal under the instruction of the light receiving part in invention 2. Therefore, based on the combination of comparative invention 1 and 2, the invention of claim 5 is easily invented by ordinary technicians.
The additional structure in the inventions of claims 6 and 7 is the structure related to the synchronous signal transmitter, which can be easily obtained by comparing the synchronous signal transmission structure at the pen tip of invention 1 with the synchronous signal transmission structure according to infrared rays on the position detection device side of invention 2.
Therefore, the invention of claim 1-7 can be easily invented from the combination of comparative invention 1 and 2.
Generally speaking, the examiner thinks that the application is not creative.
Building 1 need 100 yuan/100 words. I've probably seen it, and it has the word 1000. Should I add some wealth value rewards to my free and professional things, O(∩_∩)O haha ~