Abstract: The present disclosure relates to a method for communication control, comprising: receiving, from a second user, a request for communicating with a first user, the request including a first identification specific to the first user, the first identification being different from an account used by the first user in the communication; determining, based on a communication mapping associated with the first user, whether the second user is allowed to communicate with the first user using the first identification, the communication mapping indicating authorized users allowed to communicate with the first user and respective identifications allowed to be used by the authorized users; and obtaining, in response to determining that the second user is allowed to communicate with the first user using the first identification, the account used by the first user in the communication to initiate the communication with the first user.

Abstract: The present disclosure relates to a method for communication control, comprising: receiving, from a second user, a request for communicating with a first user, the request including a first identification specific to the first user, the first identification being different from an account used by the first user in the communication; determining, based on a communication mapping associated with the first user, whether the second user is allowed to communicate with the first user using the first identification, the communication mapping indicating authorized users allowed to communicate with the first user and respective identifications allowed to be used by the authorized users; and obtaining, in response to determining that the second user is allowed to communicate with the first user using the first identification, the account used by the first user in the communication to initiate the communication with the first user.

Abstract: The present invention discloses an image capturing apparatus and a method for obtaining the distances between different points of an object to be shot during image capturing of said object. The method comprises: determining a pair of specified points on the object for distance measurement; focusing on each specified point respectively, and obtaining a focal length for obtaining a clear image of the specified point on an imaging device of an image capturing apparatus, a distance between the clear image point of the specified point and a longitudinal axis of a convex lens of the image capturing apparatus, and a distance between the convex lens and the imaging device of the image capturing apparatus during said focusing; and calculating a distance between the specified points in the pair on the object.

Abstract: The invention teaches managing an item in the Internet of Things, wherein the system comprises: an item registration module, configured to receive at least one registration information of the item, wherein the registration information of the item includes the item's unique number marked by an information sensing device and a tag of an external data source where related information of the item is located, the at least one registration information is from at least one external data source, the unique number is the same in the at least one registration information; a storage module, configured to store the item's registration information; and a query processing module, configured to receive a query to the related information of the item, and obtain the related information of the item from the external data source which corresponds to the external data source tag included in the stored registration information of the item.

Abstract: The present invention provides a text searching method including the steps of: extracting initials of corresponding words in a text to be searched according to a predetermined extracting rule to form an initial character string; creating mapping relation between the extracted initial character string and the text to be searched; performing matching between the initial character string and an abbreviation character string to be searched for; and determining an expanded phrase corresponding to the abbreviation character string to be searched for and a location of the expanded phrase in the text to be searched according to a result of the matching and the mapping relation. The invention further provides a text searching device for implementing the method and a text processor including the text searching device.

Abstract: A linear actuator includes two spaced seats connecting by a center piezoelectric member. The seats are mounted in a rail frame. Each seat has a piezoelectric member and an elastic zone for engaging or disengaging with the rail frame. Through energizing and disenergizing the center piezoelectric member alternately, the center piezoelectric member may be extended or contracted alternately, and thus moves the seats, consequently the actuator, longitudinally along the rail frame. A linear and accurate movement of the actuator thus may be achieved at micro meter level.

Abstract: Disclosed is a micro-positioning flatbed comprising a bed; a first driving unit and a second driving unit of resilient construction; a piezo-electric element firmly coupling the first and the second driving units; and piezo-electric elements firmly received within the first and the second driving units, wherein the bed is formed with corresponding, extending guides, the first and the second driving units include opposing sides having configurations corresponding to configurations of the guides, and the first and the second driving units are aligned within the guides of the bed, whereby the piezo-electric elements expand or contract while being subjected to voltages to cause lateral expansion or contraction of the first and the second driving units in response to expansion or construction of the piezo-electric elements firmly received within the first and the second driving units, such that the piezo-electric elements firmly coupled to the first and the second driving units activate the first and the second dr