283results about How to "Avoid tracking" patented technology

A magnetic head includes a main pole, a write shield, and a gap part. The write shield includes first and second side shields and a top shield. The main pole has first and second side parts. The first side shield has a first sidewall. The second side shield has a second sidewall. The gap part includes a gap film and a nonmagnetic layer. The gap film is disposed to be in contact with the first and second sidewalls. The first side part has first and third side surfaces arranged in this order from the medium facing surface side. The second side part has second and fourth side surfaces arranged in this order from the medium facing surface side. The nonmagnetic layer is present between the third side surface and the first sidewall and between the fourth side surface and the second sidewall.

The invention relates to a high-precision maximum power point tracing method, which is an MPPT algorithm combining variable step-size optimization and a disturbance observation method based on power prediction, i.e. a variable step-size disturbance observation method based on the power prediction. The high-precision maximum power point tracing method can overcome the defects of the conventional disturbance observation method, the variable step-size disturbance observation method, and the like, solve the problems of failure judgment, local maximum power, and the like and quickly and precisely trace a maximum power point.

A text watermarking method embeds an auxiliary message in an original electronic text document to form a watermarked text document. The method applies a spreading function to message symbols to spread the symbols over a carrier, which forms a modulated carrier. It maps elements of the modulated carrier to corresponding inter-word spaces in the electronic text document, and applies an embedding function to modify the corresponding inter-word spaces according to elements of the modulated carrier signal such that the modified inter-word spaces hide the modulated carrier signal in the watermarked text document. The message symbols are automatically decodable from the watermarked document without the original electronic text document. A compatible decoder extracts the auxiliary message from a printed or electronic watermarked text document. The decoder automatically measures inter-word spaces in the watermarked text document. It estimates elements of a modulated carrier signal embedded in the inter-word spaces to form an estimated modulated carrier signal, and applies a de-spreading function to the estimated modulated carrier signal to extract message symbols.

A converter unit to improve the response dynamics and overall recovered power in a photovoltaic array configuration. Each photovoltaic panel in the photovoltaic array may be coupled to a respective converter unit, which may include a controller to sense an output voltage and output current produced by the solar panel, and control operation of a power converter to output modified voltage and current corresponding to the solar panel onto a bus coupling the converter units. The controller may operate as an analog or (digital) firmware control system to regulate the input voltage of each power converter unit under indirect guidance of a Maximum Power Point Tracking (MPPT) controller to optimize and regulate the resultant power, and achieve very fast dynamic response to environmental transients. Input voltage and output voltage management may be achieved by way of a fast inner control loop and a corresponding MPPT control system configured as an outer guidance loop providing a reference signal to the inner control loop.

A track assembly comprising an endless track trained about a sprocket and forward and aft sets of idler wheels. A plurality of apertures at the sprocket engage drive lugs that project from an interior track surface. Longitudinal stabilizer arms restrain the idler wheel axles, idler wheels, sprocket support rollers, sprocket and track against lateral movement and tension the track. Overlapping seals are formed at the idler wheels and/or sprocket support rollers. Alternative sprockets having cutouts or pockets that capture different drive lug configurations are also disclosed along with several alternative track tensioning assemblies that rotate in an eccentric fashion to tension the track.

A container comprising a frame conforming to ISO intermodal container dimensions, a hopper attached within the frame; the hopper defining a chute having a first opening and a second opening, at least one door pivotally attached to the hopper proximal to the second opening; at least one gate assembly attached to the at least one door; a connector apparatus panel mounted to the frame; and at least one actuating fluid or electrical line connected between the at least one gate and the connector apparatus panel. An alternative embodiment includes at least one air tank connected to the container and filled through an air transfer system and a plunger system to cause actuation of container doors for releasing of materials into a second receptacle and where the air transfer and plunger systems reside partially on a rough terrain container handler vehicle.

A magnetic recording medium includes a plurality of recording cells separated from each other on a substrate in a recording direction and a track width direction perpendicular to the recording direction. The recording cell includes a recording layer. The recording layer has a magnetic easy axis inclining in a designated oblique direction against a surface of the substrate.

The invention relates to a peer-to-peer network having at least one first node with a first clock module and part of a peer-to-peer application. Also included is at least one second node with a second clock module and part of the peer-to-peer application. At least one communication connection between the first node and the second node is establishable. The first node comprises at least one first synchronization clock module. The second node comprises at least one second synchronization clock module. At least the first synchronization clock module is configured to transmit at least one first synchronization clock message to the second synchronization clock module via the communication connection, the second synchronization clock module is configured to synchronize the clock signal of the second clock module to the clock signal of the first clock module based on synchronization information included in the first synchronization clock message.

Methods and devices for enabling a user to obtain item information relating to an item (10), the item having associated therewith an item identification means (12) and an RFID response means (14) arranged to provide a predetermined response on being subjected to a currently applicable trigger signal; the method comprising steps of: establishing from the item identification means (12) item identification information; using the item identification information to determine from an item information source (30) a currently applicable trigger signal for the RFID response means (14); subjecting the RFID response means (14) to the currently applicable trigger signal; receiving a predetermined response from the RFID response means (14); and using the predetermined response to obtain item information from the item information source (30); wherein the RFID response means (14) is arranged to generate a new currently applicable trigger signal and a new predetermined response associated therewith following subjecting of the RFID response means (14) to the currently applicable trigger signal.

The invention relates to a Communications system, in particular, a software defined networking communications system, comprising at least one network device comprising at least one data forwarding unit configured to forward at least one data packet, wherein the network device comprises at least one first peer-to-peer module, wherein the first peer-to-peer module is configured to communicate with at least one peer-to-peer application of at least one peer-to-peer network, wherein the peer-to-peer application comprises at least one controlling means configured to manage at least the network device.

The invention provides an Internet of Vehicles privacy protection trust model based on a block chain. Vehicles on the road generate and broadcast messages through the vehicle-mounted ad hoc network toshare surrounding traffic information so as to improve the traffic efficiency and safety. However, due to the untrusted network environment of the vehicle-mounted ad hoc network, the privacy of the vehicle is easy to expose, and whether the received message is reliable cannot be judged. The message is anonymously sent by the vehicle through the ring signature technology, so that the vehicle is prevented from being tracked by a malicious vehicle. Messages sent by the vehicle are evaluated and screened through a reputation evaluation mechanism based on the block chain technology, and forged information in the messages is filtered. Based on the characteristics of the block chain, it is guaranteed that the vehicle reputation is not maliciously tampered, real-time synchronous updating of the vehicle reputation is achieved, and the safety and usability of the vehicle-mounted ad hoc network are further improved.

A method for communication of MIPv6 mobile nodes, comprising: the mobile node accesses network at access location and obtains care of address, calculating a privacy identifier PID using the care of address etc. the mobile node replaces its home address by the PID, and sends the PID and the care of address together as binding update message to the home agent and correspondent node, the home agent and correspondent node recover the home address for the mobile node using the PID after they have received the binding update message. The method for communication of MIPv6 mobile nodes according to the present invention uses that a configuring replaced identifier replacing the home address is sent, thereby hiding Ipv6 address. By setting PID and its algorithm, we improve the sequence number in the binding update messages enabling the sequence number has randomness, and prevent the intercepting person continue tracking the mobile node through the home address.

The invention discloses an OFDM-MFSK underwater acoustic communication broadband Doppler estimation and compensation method of known sub-carrier frequency, and belongs to the field of the underwater acoustic communication. The content disclosed by the invention is specifically as follows: a transmitting end adds a plurality of sub-carries and inserts a pulse pair signal into each OFDM-MFSK data symbol; a receiving end intercepts the pulse pair signal and data, and performs coarse estimation on the Doppler factor, and determines the Doppler frequency deviation search range of each known frequency sub-carrier; performing over-sampling processing on each OFDM-MFSK data block, and computing a mean Doppler factor of the current data block; and then computing new locations of all sub-carriers ofthe whole data block after being influenced by the Doppler, and finishing the broadband Doppler compensation by extracting the corresponding data. By using the method disclosed by the invention, theaccurate estimation and compensation of the broadband Doppler in the underwater OFDM-MFSK communication system can be realized only through once data over-sampling, the process of resampling the datain the traditional Doppler estimation and compensation method is avoided, and the computing efficiency is improved.

A converter unit to improve overall recovered power in a photovoltaic array configuration. Each photovoltaic panel in the photovoltaic array may be coupled to a respective converter unit, which may include a controller to sense an output voltage and output current produced by the solar panel, and manage the output voltage of a corresponding power converter to optimize and regulate the resultant bus voltage to a point which reduces overall system losses, maintains a low loss condition, and removes series-string non-idealities when the panels are series connected. The controller may also adapt to output condition constraints. Instead of single-port regulation, a combination of input voltage and output voltage management and regulation may be performed within the converter. The source voltage and current characteristic may be shaped to correspond to an optimized power curve at the desired bus voltage to allow MPPT tracking according to the DC voltage bus. The optimized power curve may be tracked to hold the DC-bus voltage at the desired operating point.

The invention discloses traffic management system and method, wherein the traffic management system comprises at least one receiver, at least one annunciator and a processing system, wherein the receivers are used for receiving vehicle information from a nearby electronic license plate and reporting the received vehicle information; the annunciators are used for receiving the vehicle information reported by the receivers, inducing the reported vehicle information and sending inducing results, wherein the inducing results are used for indicating the driving conditions of vehicles carried with electronic license plates; and the processing system is used for receiving the inducing results sent by the annunciators, generating traffic management commands according to the inducing results and sending the traffic management commands to the annunciator. The traffic management system and method disclosed by the invention can be used for accurately acquiring the driving conditions of the vehicles on roads, thereby contributing to the reasonable optimization of traffic signal control; and the invention can realize the search of passing places of specific vehicles, thereby being convenient for tracking and survey.

A vacuum suction apparatus is equipped with a body having a supply port, and a pad provided on a lower portion of the body to which a workpiece can be attracted under suction. The pad is constituted from a base plate accommodated in a space of the body, a flexible intermediate plate provided on a lower portion of the base plate, and a suction sheet body disposed on a lower portion of the intermediate plate and having a sheet that attracts the workpiece under suction. In addition, the base plate, the intermediate plate and the suction sheet body are stacked along an axial direction of the body. The rigidity of the base plate is highest, whereas the rigidities of the intermediate plate and the suction sheet body are lower in this order, and the flexibilities thereof are greater in this order from the base plate.

A deployment mechanism is disclosed for deploying a deployable member supported on tracks relative to a base member and comprising a brake system operable in response to relative skewing of the tracks.

An automatic focusing apparatus detects presence or absence of change in a distance between an object and the automatic focusing apparatus while operating in an operation mode to continuously perform an adjustment of the position of a focus lens to focus on the object, and stops a movement of the focus lens if a change in the distance is not detected.

Provided is an image analyzing apparatus for efficiently performing detection of an object and tracking of a specified object, including a feature value recording section that records a plurality of reference feature values different in type from each other; a feature value extracting section that extracts a plurality of feature values different in type from each other, from each of a plurality of moving image constituent images included in a moving image; an object extracting section that extracts an object from the moving image constituent images, based on a degree of matching of the plurality of extracted feature values with respect to the plurality of reference feature values recorded in the feature value recording section; a reference feature value calculating section that calculates, from the plurality of reference feature values recorded in the feature value recording section, a plurality of reference feature values adjusted to the feature values of the extracted object, to a predetermined degree corresponding to the type; and a feature value updating section that updates the plurality of reference feature values recorded in the feature value recording section, with the plurality of reference feature values calculated by the reference feature value calculating section.