Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.

Abstract: The present disclosure provides method and system to facilitate definition, tuning and visualization of a geo-fence at a computer system. The method comprises: receiving input parameters for a geo-fence, the input parameters including one or more parameters specifying a geographical region; sampling historical mobile signals based on one or more of the input parameters; dividing the geographical region into a plurality of areas; determining a weight for each respective area of the plurality of areas based at least on density of sampled mobile signals associated with geographical locations in the respective area; selecting a subset of the plurality of areas based on respective weights of the plurality of areas; and forming the geo-fence using the subset of the plurality of areas, the geo-fence including one or more contiguously closed regions each formed by a cluster of adjacent areas among the subset of the plurality of areas.

Abstract: The present disclosure provides method and system to facilitate definition, tuning and visualization of a geo-fence at a computer system. The method comprises: receiving input parameters for a geo-fence, the input parameters including one or more parameters specifying a geographical region; sampling historical mobile signals based on one or more of the input parameters; dividing the geographical region into a plurality of areas; determining a weight for each respective area of the plurality of areas based at least on density of sampled mobile signals associated with geographical locations in the respective area; selecting a subset of the plurality of areas based on respective weights of the plurality of areas; and forming the geo-fence using the subset of the plurality of areas, the geo-fence including one or more contiguously closed regions each formed by a cluster of adjacent areas among the subset of the plurality of areas.

Abstract: The present disclosure provides method and system to facilitate definition, tuning and visualization of a geo-fence at a computer system. The method comprises: receiving input parameters for a geo-fence, the input parameters including one or more parameters specifying a geographical region; sampling historical mobile signals based on one or more of the input parameters; dividing the geographical region into a plurality of areas; determining a weight for each respective area of the plurality of areas based at least on density of sampled mobile signals associated with geographical locations in the respective area; selecting a subset of the plurality of areas based on respective weights of the plurality of areas; and forming the geo-fence using the subset of the plurality of areas, the geo-fence including one or more contiguously closed regions each formed by a cluster of adjacent areas among the subset of the plurality of areas.

Abstract: The present disclosure provides method and system to facilitate definition, tuning and visualization of a geo-fence at a computer system. The method comprises receiving an application program interface (API) call from the computer system, and in response to the API call, enabling the computer system to display a user interface (UI) on a display screen of the second computer system. The UI includes a first region and a second region, the first region including a plurality of screen areas for receiving input parameters for defining the geo-fence via a user input device of the computer system, and a second region is configured to display the geo-fence over a map of a geographical region around a location specified in the input parameters. The method further comprises, in response to receiving user inputs in the second region, generating the geo-fence based on the input parameters and mobile device events data stored in an electronic storage.

Abstract: A Radio Frequency Identification (RFID) chip device includes a carrier, and an RFID chip and a reading process inhibitor disposed on the carrier. The RFID chip is charged by a reader and transmits, when activated, an RFID signal to the reader. The reading process inhibitor includes a touch point arranged on a surface of the carrier. Charged by the reader, the reading process inhibitor is activated not later than activation of the RFID chip so as to emit an RFID disturbing signal for interfering with the RFID signal. The reading process inhibitor stops emitting the RFID disturbing signal when an electric field established thereby at the touch point is varied due to operation performed upon the touch point by the user.

Abstract: A method performed by one or more computer systems coupled to a packet-based network to determine the location of a mobile device comprises receiving a set of input signals associated with the mobile device from the packet-based network. The set of input signals include a plurality of location components and context information. The method further comprises determining whether the set of input signals include a pair of latitude/longitude coordinates, and determining whether the pair of latitude/longitude coordinates are valid using a set of criteria. The method further comprises defining at least some of the set of criteria using historical data associated with a plurality of mobile devices communicating with the packet-based network. The method further comprises deriving the location of the mobile device using one or more other location components of the plurality of location components and the context information, in response to the pair of latitude/longitude coordinates being marked as invalid.

Abstract: A Radio Frequency Identification (RFID) chip device includes a carrier, and an RFID chip and a reading process inhibitor disposed on the carrier. The RFID chip is charged by a reader and transmits, when activated, an RFID signal to the reader. The reading process inhibitor includes a touch point arranged on a surface of the carrier. Charged by the reader, the reading process inhibitor is activated not later than activation of the RFID chip so as to emit an RFID disturbing signal for interfering with the RFID signal. The reading process inhibitor stops emitting the RFID disturbing signal when an electric field established thereby at the touch point is varied due to operation performed upon the touch point by the user.

Abstract: The present disclosure provides method and system to facilitate definition, tuning and visualization of a geo-fence at a computer system. The method comprises receiving an application program interface (API) call from the computer system, and in response to the API call, enabling the computer system to display a user interface (UI) on a display screen of the second computer system. The UI includes a first region and a second region, the first region including a plurality of screen areas for receiving input parameters for defining the geo-fence via a user input device of the computer system, and a second region is configured to display the geo-fence over a map of a geographical region around a location specified in the input parameters. The method further comprises, in response to receiving user inputs in the second region, generating the geo-fence based on the input parameters and mobile device events data stored in an electronic storage.

Abstract: A method performed by one or more computer systems coupled to a packet-based network to determine the location of a mobile device comprises receiving a set of input signals associated with the mobile device from the packet-based network. The set of input signals include a plurality of location components and context information. The method further comprises determining whether the set of input signals include a pair of latitude/longitude coordinates, and determining whether the pair of latitude/longitude coordinates are valid using a set of criteria. The method further comprises defining at least some of the set of criteria using historical data associated with a plurality of mobile devices communicating with the packet-based network. The method further comprises deriving the location of the mobile device using one or more other location components of the plurality of location components and the context information, in response to the pair of latitude/longitude coordinates being marked as invalid.

Abstract: An anonymous authentication method is implemented by an authentication device that has a key array. The key array has multiple array dimensions each having multiple device keys. The method includes: receiving ciphertexts from a chip that has multiple chip keys; acquiring authentication keys by: for each of the ciphertexts, performing trails of decryption using the device keys of one of the array dimensions that corresponds to one of the chip keys used to generate the ciphertext one by one until obtaining one of the device keys that successfully decrypts the ciphertext to serve as one of the authentication keys; and obtaining, for authentication, information associated with the chip according to the authentication keys.

Abstract: A method of delivering location-based information comprises receiving a request including a location indicator from a packet-based network and translating the location indicator into a probabilistic representation of one or more possible locations of a mobile user based on historical data collected from mobile devices. By generating the probabilistic user location representation, the method can be used to deal with the inherent uncertainty in user location data, particularly in a mobile world. In some embodiments, this is done by using validation, context analysis, creation of consistent groups, and probability allocation procedures. Location-based document retrieval can be enabled using the probabilistic user location representation.

Abstract: An anonymous authentication method is implemented by an authentication device that has a key array. The key array has multiple array dimensions each having multiple device keys. The method includes: receiving ciphertexts from a chip that has multiple chip keys; acquiring authentication keys by: for each of the ciphertexts, performing trails of decryption using the device keys of one of the array dimensions that corresponds to one of the chip keys used to generate the ciphertext one by one until obtaining one of the device keys that successfully decrypts the ciphertext to serve as one of the authentication keys; and obtaining, for authentication, information associated with the chip according to the authentication keys.

Abstract: A method of delivering location-based information comprises receiving a request including a location indicator from a packet-based network and translating the location indicator into a probabilistic representation of one or more possible locations of a mobile user based on historical data collected from mobile devices. By generating the probabilistic user location representation, the method can be used to deal with the inherent uncertainty in user location data, particularly in a mobile world. In some embodiments, this is done by using validation, context analysis, creation of consistent groups, and probability allocation procedures. Location-based document retrieval can be enabled using the probabilistic user location representation.

Abstract: A geographic document retrieval method (GDR) can be executed by a computer system to index, retrieve and rank geographical documents. Textual and spatial attributes of geographical documents are indexed separately using inverted index and spatial index, respectively. Spatial attributes of a document are represented as one or more contiguously closed regions of arbitrary shapes. Upon receiving an input query carrying a geographic representation of a location using arbitrary regions, the GDR method retrieves one or more documents by executing an overlap test between arbitrary regions from the query and the arbitrary regions associated with the documents.

Abstract: A method of delivering location-based information comprises receiving a request including a location indicator from a packet-based network and translating the location indicator into a probabilistic representation of one or more possible locations of a mobile user based on historical data collected from mobile devices. By generating the probabilistic user location representation, the method can be used to deal with the inherent uncertainty in user location data, particularly in a mobile world. In some embodiments, this is done by using validation, context analysis, creation of consistent groups, and probability allocation procedures. Location-based document retrieval can be enabled using the probabilistic user location representation.

Abstract: A method of delivering location-based information comprises receiving a request including a location indicator from a packet-based network and translating the location indicator into a probabilistic representation of one or more possible locations of a mobile user based on historical data collected from mobile devices. By generating the probabilistic user location representation, the method can be used to deal with the inherent uncertainty in user location data, particularly in a mobile world,. In some embodiments, this is done by using validation, context analysis, creation of consistent groups, and probability allocation procedures. Location-based document retrieval can be enabled using the probabilistic user location representation.

Abstract: In accordance with aspects disclosed herein, impact that a user interface design has on a user's experience is measured. User response to one or more user interface designs is measured. Two or more user interface designs can be compared based on user response to each design. A single user interface design can be evaluated based on one or more measures of user response to the user interface, or two or more user interface designs can be compared using one or more user response measures corresponding to the user interface designs.

Abstract: A chip card device includes: a first insulative substrate; a chip unit disposed on an inner side of the first insulative substrate; a first conductive wiring disposed on the inner side of the first insulative substrate, and including a first chip-connecting end that is electrically connected to the chip unit, and a first open circuit terminal opposite to the first chip-connecting end; and a second conductive wiring disposed on the inner side of the first insulative substrate and including a second chip-connecting end that is electrically connected to the chip unit, and a second open circuit terminal that is opposite to the second chip-connecting end, and that can be electrically connected to the first open circuit terminal through an external touching member.

Abstract: A chip card device includes: a first insulative substrate; a chip unit disposed on an inner side of the first insulative substrate; a first conductive wiring disposed on the inner side of the first insulative substrate, and including a first chip-connecting end that is electrically connected to the chip unit, and a first open circuit terminal opposite to the first chip-connecting end; and a second conductive wiring disposed on the inner side of the first insulative substrate and including a second chip-connecting end that is electrically connected to the chip unit, and a second open circuit terminal that is opposite to the second chip-connecting end, and that can be electrically connected to the first open circuit terminal through an external touching member.