42results about How to "Not easy to attract attention" patented technology

The invention provides an antenna device. The antenna device comprises a radio frequency transceiving circuit, a matching circuit and a metal shell, wherein the matching circuit is electrically connected to the radio frequency transceiving circuit, the edge of the metal shell comprises an arc segment, the metal shell is provided with at least one micro-slot belt, the at least one micro-slot belt comprises an arc part, the arc part is matched with the arc segment of the metal shell, the radio frequency transceiving circuit is electrically connected with the metal shell through the matching circuit so that the metal shell is used as a radiation body of the antenna device, the metal shell is grounded by a grounding line, and a switch is arranged on the grounding line and is used for controlling on/off of the grounding line. With the antenna device according to the invention, the comprehensive appearance effect of a mobile terminal can be ensured, meanwhile, a signal of the antenna device can be prevented from being intervened, and the bandwidth of the antenna device is improved. The invention also provides the mobile terminal.

The invention discloses a method for designing a forest fire prevention early warning system. The method comprises the following steps that (1) monitoring terminals are distributed at all monitoring points of a forest so as to collect environment information around the monitoring points and then the environment information and position information of the monitoring points are sent to a remote monitoring center in a binding mode; (2) the remote monitoring center is provided with a monitoring data base server and a monitoring software platform and a forest fire alarm model which is set in advance is further stored in the monitoring data base server; (3) the monitoring software platform reads the environment information, newly received by the monitoring data base server, around the monitoring points and conducts data processing, then analysis and comparison are conducted on the forest fire alarm model and the processed environment information, if the forest fire alarm model is matched with the processed environment information, the situation that corresponding forest fire occurs to the monitoring point is judged, an alarming sound is emitted, meanwhile, warning information is generated and a pre-protocoled fire prevention measure scheme is sent to a forest fire prevention center. The method for designing the forest fire prevention early warning system is reasonable in design, low in erection cost, stable in running and reliable in monitoring.

The invention discloses a carrier-free text steganography method based on character features. Binary digits are expressed through the character features; secret information is processed into a binaryciphertext string and then is packaged and segmented; mapping between texts and binary ciphertext string segments is established by taking abundant webpage texts in a network big data environment as candidate carriers; corresponding texts are found for the secret information through the mapping relationship; and the texts or the corresponding URLs are sent, thereby finishing secret information interaction. After a receiving end receives the texts, the character features of a first text are analyzed to obtain head information; a binary ciphertext segmentation mode and length are determined; thefollow-up text character features are analyzed to obtain binary ciphertext segments; the segments are recombined to form the complete binary ciphertext string; and decoding or decryption is carried out to obtain the secret information. The method has the advantages of high stealthiness, high expandability and high embedded capacity, and the application and development of a steganography technology in various fields are facilitated.

The invention discloses a reversible data hiding method based on eight neighborhood pixels. According to the method, a gray image of a space domain is predicted using eight neighborhood pixels of a pixel to be embedded and a prediction difference is calculated, and then, secret data is embedded based on the difference and a histogram removal algorithm. The method specifically comprises the steps as follows: first, the smoothness of a current block is predicted based on the characteristics of eight neighborhood pixels of a pixel to be embedded to get the characteristics of smoothness; then, the pixel to be embedded is predicted to get a difference, and different secret data embedding modes are adopted according to the smoothness in the hope of reducing distortion caused by secret data embedding; and finally, an embedding template is used to embed all pixels in the scope of the template in sequence to achieve high embedding capacity. Because of the characteristics of natural gray images, that embedded images have low distortion is ensured while a lot of secret data is embedded, and the security of data hiding is improved.

The invention discloses an extension visual encryption and decryption method. In the extension visual encryption process, a cover image is chunked first, and pixels in each block are divided into secret information pixels, auxiliary black pixels and common pixels; then (2,2) lines of a visual cryptography fundamental matrix are filled at the position of secret information, share images are divided into four areas, and secret images and watermark images are sequentially embedded into the four areas; at last, limited error diffusion is used for incorporating the characteristics of the cover image. In the extension visual decryption process, the two share images are overlaid in a staggered mode, and watermarks are recovered; then the two images align to each other to recover secret images. The extension visual encryption and decryption method has the advantages that image sharing is meaningful, the dimension is not extended, decryption does not need a computer, a tampering authentication function is achieved, and the recovered secrete images and the watermarks can be free of interference of the cover images at the same time.

The invention discloses a shell. The shell is provided with at least two conducting parts and at least one insulating part for partitioning the at least two conducting parts; each insulating part is provided with two micro gap belts arranged at an interval and a gap connected between the two micro gap belts; each micro gap belt is provided with a plurality of micro gaps; each micro gap is communicated to the gap respectively; and each micro gap and the gap are filled with an insulating material respectively. The shell is relatively high in structural strength. The invention also discloses an antenna device, a mobile terminal and a shell processing method.

The invention belongs to the computer network and information safety technology field, and discloses a confidential information transmission method in a P2P network based on a BitTorrent protocol. A covert transmission channel is established based on Handshake information transmission in the P2P network, and by adopting the established covert transmission channel, confidential information is embedded in BT key words of Handshake information in an information coding way, which is not sensitive to case, for transmission. The covert transmission is carried out by introducing the information coding way, which is not sensitive to the case, to the BT key words of the handshake information. The confidential information transmission method provided by the invention is simple and effective, is low in realization cost, is safer and more reliable, and is not easy to crack.

The invention provides an antenna device for a mobile terminal. The antenna device comprises first radio-frequency receiving and transmitting circuit, a first matching circuit, a second radio-frequency receiving and transmitting circuit, a second matching circuit and a shell, wherein the shell comprises a first conducting region; the first conducting region is provided with a first micro-gap strip and a first gap; the first micro-gap strip comprises a plurality of first micro-gaps; the first micro-gap is intersected with the plurality of first micro-gaps; the first radio-frequency receiving and transmitting circuit is electrically connected with the first conducting region through the first matching circuit; and the second radio-frequency receiving and transmitting circuit is electrically connected with the first conducting region through the second matching circuit. According to the antenna device provided by the invention, the overall appearance effect of the mobile terminal can be ensured; and meanwhile, receiving and transmitting of a high-frequency signal and a low-frequency signal can be achieved. The invention further provides the mobile terminal.

The invention provides a method for carrying out secret communication by using a word document. The method mainly comprises the following three steps of: manufacturing secret characters by using a True Type character-formation program and generating a secret key; embedding the secret characters into the word document; and extracting the secret characters by using the secret key. According to the method disclosed by the invention, the True Type character-formation program in the conventional general windows operation system, display characters of a window word base and certain functions of word character processing software are designed and integrated so as to realize a function of performing the secret communication by using the word document. The method disclosed by the invention has the advantages of smart conception, simple method, low cost, good commonality and easiness of operation. Therefore, the method can be accessibly used by any operator familiar with windows.

The invention relates to a dangerous chemical safety inspection device and a gate system. The dangerous chemical safety inspection device comprises a first machine body and a second machine body whichare oppositely arranged at a certain interval to form a security check channel, an air blowing module is arranged in the first machine body and blows air into the security check channel, and an air suction module is arranged in the second machine body and sucks in gas in the security check channel to detect dangerous chemicals in the gas.

The invention provides a shell. A first micro-gap belt, a second micro-gap belt and a first gap are arranged on the shell; the first micro-gap belt comprises multiple first micro-gaps; the second micro-gap belt comprises multiple second micro-gaps; the first gap is intersected with the multiple first micro-gaps; and the multiple first micro-gaps of the first micro-gap belt are respectively communicated with the multiple second micro-gaps in the second micro-gap belt. The invention further provides an antenna device comprising the shell, and terminal equipment comprising the antenna device. According to the shell, the antenna device and the terminal equipment disclosed by the invention, the overall appearance effect of the terminal equipment can be ensured; and simultaneously, transceiving of high-frequency signals and GPS signals can be realized.

The invention provides an anti-plug-in method, device and system, and the method comprises the steps: monitoring a preset detection point in a game application, and obtaining plug-in feature information detected at the preset detection point in a current game stage; when the game stage is finished, generating anti-plug-in game data information corresponding to the game stage according to the plug-in feature information and normal game data information corresponding to the game stage; and sending the anti-plug-in game data information corresponding to the game stage to a first server, so that the first server determines whether plug-in feature information exists in the anti-plug-in game data information or not by comparing the anti-plug-in game data information with normal game data information corresponding to the game stage from a game server. According to the scheme of the invention, a confused and hidden anti-plug-in mechanism is adopted, so that the difficulty in counterfeiting a data packet by a plug-in developer can be greatly increased.

The invention discloses a voice encryption method and a voice sending terminal. The method is applied in the voice sending terminal. The method comprises following steps of judging whether a user starts dictating character string information or not in a call process; if the user starts dictating the character string information, encrypting the user dictated character string information into another piece of character string information; and inputting the encrypted character string information in a mobile communication network. According to the method and the terminal, the voice communication security is improved.

The invention discloses a method for displaying a dark watermark at a mobile end, which comprises the following steps: 1, after the watermark content is encoded and converted, the watermark content isplaced in a matrix; Step 2: the matrix is drawn onto the application interface. By adopting the method, the invention can avoid interfering with the normal reading of the user, ensure the user experience, prevent the illegal elements from forging the watermark content, and bring the safe experience to the user.