75 results about "Time constrained" patented technology

An ultra-wide band (UWB) waveform generator and encoder for use in a UWB digital communication system. The UWB waveform is made up of a sequence of shaped wavelets. The waveform generator produces multi-amplitude, multi-phase wavelets that are time-constrained, zero mean, and can be orthogonal in phase, yet still have a −10 dB power spectral bandwidth that is larger than the frequency of the peak of the power spectrum In one embodiment, the wavelets are bi-phase wavelets. The encoder multiplies each data bit by an n-bit identifying code, (e.g., a user code), resulting in a group of wavelets corresponding to each data bit. The identifying codeword is passed onto the UWB waveform generator for generation of a UWB waveform that can be transmitted via an antenna.

The invention, which is an embodiment of what the inventor calls, “Active behavior Fingerprint Authentication” is one which employs a sequential reading of fingerprints of various fingers, in a way that may or may not be time constrained, as a means to improve authentication security. Authentication security is strengthened based upon the reduced likelihood that a potential intruder would 1.) Know what the correct sequence of fingerprints were associated with the control authentication template; 2.) Know the correct timing characteristics associated with successive fingerprint readings; 3.) Be able to successfully “hack” the authentication server in order to gain access to minutia or image information, and finger sequence information, and timing information, which would be required in order to fully compromise the authentication system. The technique embodied by the invention represents an overlay of a known, ordered sequence, which may or may not be timed, over the fingerprint authentication process itself.

A method and system is provided for the recovery of an aircraft energy upset in a time-constrained descent. The system includes a computational unit to assess a number of adjustments involving a combination of speed changes, aerodynamic brake deployment and track miles adjustments that alter the energy dissipation profile whilst allowing the aircraft to maintain a pre-determined time-of-arrival over an incoming waypoint along the original descent path.

A mobile device (10) manages tasks (18) using a scheduler (20) for scheduling tasks on multiple processors (12). To conserve energy, the set of tasks to be scheduled are divided into two (or more) subsets, which are scheduled according to different procedures. In a specific embodiment, the first subset contains tasks with the highest energy consumption deviation based on the processor that executes the task. This subset is scheduled according to a power-aware procedure for scheduling tasks primarily based on energy consumption criteria. If there is no failure, the second subset is scheduled according to a real-time constrained procedure that schedules tasks primarily based on the deadlines associated with the various tasks in the second subset. If there is a failure in either procedure, one or more tasks with the lowest energy consumption deviation are moved from the first subset to the second subset and the scheduling is repeated.

The invention discloses a video previewing segment generating method of a media player, which is based on a network media player with a video editing function. The video previewing segment generating method comprises the step of automatically generating a previewing segment of video on the basis of each complete video. The video is completely and rapidly analyzed in a background by using a video player, and most wonderful segment is grabbed by using parameter information of the video, such as change of a code stream, and is arranged into a playing list through storing the starting time and the ending time of the wonderful segment. When a user clicks the previewing video, the player can plays the previewing video according to the playing list. Therefore, the user can more effectively utilize time for enjoying the most wonderful video segment, and is helped to rapidly make a correct selection in a large quantity of videos; the user can also be helped to select the wonderful segment of the video for enjoyment under the condition of limited time; and a video website can be helped to select the wonderful film segment for attracting the attention of the audience, thus the income of the website is increased.

The invention discloses a computerized method, system and device for maximizing airport landing and takeoff capacity by generating an optimized landings and takeoffs schedule for a plurality of aircrafts located in a vicinity of a specific airport by determining an optimal four dimensional (4D) trajectory for efficient landing/takeoff sequence and time schedule.

The aircrafts are separated by the number of parameters to ensure safety for the aircrafts according to the updated FAA/EASA standards. Accordingly, the model disclosed in the invention works under current FAA/EASA runway usage, precedence and time constrains.

Special Takeoffs Traffic Lights System is additionally disclosed, wherein Traffic Lights will be installed on the runway to increase the landing/takeoff safety, such traffic lights will have changing green/red colors on vacancy/occupancy of the specific runway.

The system could be used either as an automatic system or as a decision-support system for ATC personnel.

The principles of the present invention provide for providing contention free quality of service to wireless stations. A station indicates to an access point that higher priority data (e.g., time constrained data) is to be sent to the access point. The access point receives the indication and selects a slot time for the station based on the number of other stations that have also indicated higher priority data. A slot time is selected such that the station can check for access to a common wireless link before any stations with lower priority data (e.g., data without time constraints). The access point sends the selected slot time to the station and the station receives the slot time. When the station receives an indication that an application has higher priority data to send, the station checks the common wireless link for availability at the selected slot time.

Conventionally, when a biological information collecting device is used for measurement, an electrode is directly attached to a human body, accurate information cannot be collected and measurement through a lead wire is performed, for long time constraining the human body because of the lead wire. A device proposed to solve the problem comprises a capacitive sensor used for detecting a signal from the human body, and therefore the temperature characteristics are not good, bringing out a drawback that the signal varies in a low-frequency range. A biological information collecting device according to the invention comprises a closed pneumatic sound sensor having a gas-tight air bag made of soft rubber, plastic, or cloth or a cabinet made of metal, rubber, plastic, or wood. Biological information about the respiration, the cardiac rate (cardiac cycle), and the body movement due to, e.g. a cough or a snore is collected by a microphone of a pressure sensor to perform measurement without constraining the human body, thereby solving the problem of the conventional devices.

This system introduces photo imagery, video imagery, animation imagery, graphic interchange format (GIF) imagery, written content imagery, audio wave imagery, audio file imagery, and streaming media imagery, which is subject to an appearing, disappearing, deletion, and expiring time restriction as set by the sender or system administrator. The system primarily facilitates time restricted appearing content such as selfies, standard photos, video, and audio files where end-users can alter, manipulate or replicate the content against a competing clock for a predetermined period of time while the content is still in a server or electrical storage device prior to going live on a social media website or in a private in-house website forum. In addition, a sender or system administrator may grant preferred end-users pre-release authority to replicate the sender's original content within the server so that it may later be compared against the sender's original content sent to a website display or gallery.

Method for correcting seismic simulations, RTM, and FWI for temporal dispersion due to temporal finite difference methods in which time derivatives are approximated to a specified order of approximation. Computer-simulated seismic data (51) are transformed from time domain to frequency domain (52), and then resampled using a mapping relationship that maps, in the frequency domain, to a frequency at which the time derivative exhibits no temporal dispersion (53), or to a frequency at which the time derivative exhibits a specified different order of temporal dispersion. Alternatively, measured seismic data from a field survey (61) may have temporal dispersion of a given order introduced, by a similar technique, to match the order of approximation used to generate simulated data which are to be compared to the measured data.

A video compression process speeds the optimal choice of quantizers for compressing a data stream by setting up the optimization problem as a path-optimization problem in configuration space and finding the lowest cost path through the configuration space. The process begins with a starting node (or “state”) and propagates least-cost waves through the space until a path is completed to the end. The process may continue using uncompleted paths while their costs are less than the end state, beginning with the lowest cost incomplete path, until an improved path is found. The process may further continue, for a time constrained process, until time runs out or all useful possibilities are exhausted.

The invention relates to a sound and time recording system of an embedded multi-channel phone. The system provided by the invention is characterized in that a signal conditioning component is connected to a signal amplification component; an analogue-digital (A/D) converter is connected to a starting signal judgment component and a dump control processor, and the output of the starting signal judgment component is respectively connected with the dump control processor and an ARM7 processor; the output of the dump control processor is connected with a dual-port RAM (random-access memory), the output of the dual-port RAM is connected with the ARM7 processor, and the output of the ARM7 processor is respectively connected with an Ethernet, a keyboard display and a flash memory, the function of starting and stopping sound recording of multi-channel phone voice according to a sound control signal is automatically realized, the sound recording content is circularly stored in a non-volatile memory in the system one by one according to the starting time of a conversation, a graph and remote management interface is provided, and the rapid retrieval, replay, backup and deletion of the sound recording content is realized through a local keyboard and a remote network so as to store, retrieve and replay the multi-channel phone voice content, therefore, the defect that the traditional sound recording phone is limited in recording time and inconvenient for management is solved, and the degree of automation is improved.

The invention relates to a path planning method for an unmanned aerial vehicle group, particularly to a time-constrained simultaneous-arrival multi-unmanned-fixed-wing-aircraft planning path planningalgorithm, thereby realizing coordinated flight of the unmanned aerial vehicle group having specific time requirements of same-time arrival and successive-time interval arrival. The invention providesa time-constrained simultaneous-arrival multi-unmanned-aerial-vehicle path planning algorithm. A three-dimensional reference path length is planned by considering the speed, acceleration and deceleration limits of an unmanned aerial vehicle under the flight time requirement; three-dimensional path information is determined by radius searching within an available path length range; and then a current speed given value and a speed adjusting value are calculated based on flight time to carry out real-time speed controlling. Therefore, the coordinated flight time requirements of multiple UAVs aremet.

The invention provides a region task decomposition method of ground-air-space earth observation. The method comprises that a region task is decomposed into resource observing subtasks according to time constrained conditions; and according to positional relation among the subtasks, and the regional task is decomposed into meta-tasks. The region task is decomposed into the meta-tasks that can be observed by four types of observation resources in a combined way, and the method can adapt to the ground-air-space integrated development trend and the coordinated observation requirement. The capacity of the observation resources and the time constraint conditions of the tasks are taken into consideration, space errors of task boundaries in a grid decomposition method are avoided effectively, the quantity of meta-tasks is reduced effectively, and the subsequent meta-task distribution efficiency is improved greatly.