552results about How to "Avoid Privacy Leakage" patented technology

The invention discloses a data processing method and a system based on a virtual character. The invention provides a data processing method based on a virtual character, comprising the following steps: S100, acquiring facial expression image information of a performer; S200, converting the facial expression image information into character expression data; and S300, processing the character expression data according to a data interpolation algorithm to get virtual expression data of a virtual character. The facial movements of a human face can be transferred to any virtual character chosen by users and demonstrated. The current facial expression change of a performer can be reflected in real time through the virtual character. A more vivid virtual character can be created, interest is added, and the user experience is enhanced. Moreover, when there is an identification fault, the action of the character can be stably controlled within an interval to make virtual character demonstration more vivid and natural.

The invention relates to a privacy continuous-query protection method based on a location-based service, which comprises the following steps that: A. a mobile user is used for transmitting a query request to an anonymous server; B. an anonymous engine judges whether the query request Q is a new query or an active query according to a user identification id; C. if the query request is the new query, the anonymous engine can carry out anonymous processing to the query request, and transmits the processed request Q=(id', Rv, t, maxT, con) to a server of a provider; D. the server of the provider carries out the query processing according to the received request Q=(id', Rv, t, maxT, con), and returns a candidate set of a query result to the anonymous server; and E. the anonymous server selects a correct query result from the candidate set returned by the database server and returns the query result to corresponding mobile objects.

The invention discloses a server, a terminal and an authority management and permission method. Identification information of an application program to be inquired from the terminal is obtained; an optimal and reasonable permission policy corresponding to the application program to be inquired is inquired and obtained according to the identification information, and the permission policy is sent to the terminal. The tedious process of judging the application software program manually by a user is avoided, and a server sends the optimal permission policy to the terminal directly through inquiring. In addition, the terminal conducts permission limitation on the corresponding application program through the obtained reasonable permission policy, manual permission selection of a user is avoided, the terminal obtains the reasonable permission policy automatically to limit the application program, and user experience is further improved. Meanwhile, the reasonable permission policy is used, inaccurate permission judgment of the user is avoided, and information safety of the user is protected.

The invention provides a method for application program starting authentication, which mainly comprises the steps that an event starting notice sent by a preset backstage service is received, wherein the event starting notice is generated based on a starting behavior of an application program intercepted by the backstage service; a response is made to the event starting notice, a locking interface is started to receive password input of a user, and the authentication is carried out to the starting behavior of the application program; and the backstage service is informed by an authentication result to release or prohibit starting of the application program. In addition, the invention also provides a device for the application program starting authentication. The method and the device for the application program starting authentication provided by the invention can realize locking before the self-starting of the application program, and determine whether the starting is realized by the user's authentication, so that the problem about frame blinking during the locking is solved, time wasting caused by timed polling of a CPU is avoided, and a program locking function with better user experience is realized.

The invention discloses an express delivery information privacy protection system based on a blockchain, and a protection method thereof. The method records all operational motions of an express delivery enterprise for user data through a blockchain auditing platform, the operation compliance of the express delivery enterprise is enhanced, and the express delivery enterprise can be effectively prevented from illegally obtaining personal information. Meanwhile, a user can read a user data visitor record through an authorization record recorded in the blockchain, the access permission of the express delivery enterprise for the user data is revoked, and the sense of control of the user for personal data is enhanced. In addition, a ciphertext express waybill is used for replacing a plaintext express waybill, so that a possibility that the user data is leaked in each link of an express delivery business process can be lowered. An express delivery package logistics tracking scheme based on the blockchain can assist the user in checking the logistics situation of the express delivery package at any time in a blockchain system, and logistics information which can not be tampered on the blockchain can provide proof-providing information for disputes including delivery losing claims and the like.

The invention provides a data anonymization method and system. The data anonymization method comprises the steps of: carrying out text analysis on the attribute value of a text type in data; replacing the attribute value of the text type in the data with the attribute value of a value type or a class type according to text analysis result; and carrying out anonymization processing on the data in which the attribute value of the text type is replaced by the attribute value of the value type or the class type. According to the invention, after anonymization processing, the data comprising the attribute value of the text type not only can prevent the privacy leakage based on the attribute value, but also still has use value.

The invention provides an information sharing method and an information sharing device of a terminal and the terminal. The information sharing method of the terminal comprises the steps of selecting a designated operating system from at least one of other operating systems of multiple operating systems except any one operating system to handle an information sharing request when detecting any one operating system receives the information sharing request; setting shared information for any one operating system in the designated operating system according to a handling result of the designated operating system handling the information sharing request and information required by the information sharing request to be shared; sharing the set shared information through the designated operating system. By means of the technical scheme, the control ability on personal information of a user is improved, the information security of the terminal is effectively ensured, the privacy security of the user is improved, and the user experience is enhanced.

The invention provides a privacy protecting method in a video call, which comprises the following steps of: sending a video call request by a distal end; if a user is inconvenient to have a video with the distal end, sending a preset image frame to the distal end and talking with the distal end; prompting whether to have the video call during the call; when the user is convenient to have the video call with the distal end, confirming a video call prompt to start the video transmission function; and transmitting real-time image data of the user to the distal end. The invention also provides a privacy protecting system in the video call. Privacy leakage caused by receiving the video call request of the distal end in an emergency by the user can be avoided by using the privacy protecting method.

The invention provides a speech recognition method. The speech recognition method comprises the following steps that a client judges whether current speech recognition application involves privacy, if the current speech recognition application involves privacy, the client conducts speech recognition on collected speed signals; otherwise, the client further judges whether connection between the client and a server is successfully established; if connection between the client and the server is successfully established, the server conducts the speech recognition on the collected speech signals; if the connection between the client and the server is not successfully established, the client conducts the collected speech recognition on the collected speech signals. The invention further discloses the client of the speech recognition. The speech recognition method and the client can achieve the objective that speech recognition is conducted on speech data which contain privacy and is not limited by a network condition.

The invention provides a method and a device for clearing historical records. The method comprises the steps as follows: the historical records are acquired, and feature information in the historical records is extracted; the feature information is compared with preset data items in a feature library; and if matched items exist, and the historical records containing the feature information are cleared. According to an embodiment of the method and the device, user operation steps can be simplified, user privacy leak is prevented, and the safety of user equipment is improved.