54results about How to "Accurate time information" patented technology

A method of producing multiple models of a hardware (integrated circuit) design including: translating a master model of a design of the integrated circuit to at least first and second models that are functionally equivalent to the master model and that are at different levels of abstraction from each, other and in which each of the first and second models includes integrated circuit timing information that is accurate for its level of abstraction.

The invention discloses a system for automatically checking time of a mobile phone, comprising a central computing processor, a system clock module which is connected with the central computing processor and used for displaying the current time of a mobile phone system and maintaining the current time accuracy of the mobile phone system, and a checking module which is connected with the system clock module and used for emitting a time check request through a network, receiving the return check information and writing the check information in the system clock module. The checking module carries out the time synchronization with an administrative clock server through the network, and the administrative clock server checks self time from time to time through an Internet, thereby the checking module can be ensured to obtain the accurate time information from the administrative clock server, the time information can be written into the system clock module of the mobile phone and the purpose of time synchronization of the mobile phone system can be reached; the invention has the advantages that the use is simple and convenient, the cumbersome and complicated operation processes of the user are solved, and the time of the mobile phone system can be easily, conveniently and rapidly checked.

In a computer-implemented method of adjusting a local clock at a receiver in a packet network, the local clock is generated by a phase locked loop locked to a master clock with the aid of time-stamped timing packets arriving over the network from the master clock with a packet delay distribution about a nominal delay. The timing packets are filtered to adjust for the packet delay distribution. A control input for the phase locked loop is derived from the timing packets. The amount of skew in the packet delay distribution about the nominal delay is determined, and the arrival times of timing packets are then selectively modified to correct for the amount of skew in the packet delay variation distribution prior to filtering the timing packets.

A method for automatically setting a time includes receiving a time set by a user and corresponding to a geographic region where a digital broadcast receiver is located, and then determining if a broadcast signal received by the digital broadcast receiver includes time information; if the broadcast signal includes the time information, calculating a difference between the set time and received time information; setting a time zone based on the difference in the digital broadcast receiver; and if a command to display time information is received, applying a time difference corresponding to the set time zone to the time information in the broadcast signal, which is received at the time the command is received, and displaying the resulting time information. A digital broadcast receiver using the method is also provided.

A system and method for characterizing incident ions are provided. The method includes positioning a transmission line detector to receive incident ions, the transmission line detector comprising a superconducting meandering wire defining a detection area for incident ions, and applying a bias current to the transmission line detector. The method also includes detecting a first signal produced in the transmission line detector due to an ion impacting the detection area, and detecting a second signal produced in the transmission line detector due to the ion impacting the detection area. The method further includes analyzing the first signal and the second signal to characterize the ion. In some aspects, the method further includes identifying a delay between the first signal and the second signal to determine, using the identified delay, a location of the ion on the detection area.

Provided is an apparatus and method for transmitting/receiving time information in a mobile communication system. In a method for calculating a current time in the mobile communication system, time information is received from a base station. Date information and parameters for calculation of time are obtained on the basis of the received time information. A lapse time length from a reference time is calculated on the basis of the parameters. A current time is calculated using the calculated lapse time length and the date information. The time information is periodically transmitted and received using the idle frame of an idle state and the stealing flag of a normal burst contained in a BCCH.

A method and system for implementing synchronization between a receiving end and a source end of broadcast television service. The method includes: determining, at a transmitting station, time difference information between the source end and the transmitting station; and transmitting, by the transmitting station, time information of the transmitting station and the time difference information to the receiving end; implementing, by the receiving end, synchronization between the receiving end and the source end according to the time difference information and the time information of the transmitting station. With the method, synchronization between the source end and the receiving end in a broadcast television service network may be realized so that the receiving end may learn the accurate initial time information for receiving program streams transmitted from the program source. With the method, energy waste due to in-advance turn-on of receiving end device for receiving a program may be avoided.

The invention discloses a multi-channel concurrent downlink internet of things LoRa base station. The multi-channel concurrent downlink internet of things LoRa base station comprises a LoRa wireless data transmission unit, a CPU core processing unit, an MCU core processing unit, an Ethernet data transmission unit, and a GPS positioning unit, wherein the LoRa wireless data transmission unit is provided with multiple uplink channels and multiple downlink channels, the LoRa wireless data transmission unit is connected with the CPU core processing unit, the CPU core processing unit is connected with the GPS positioning unit, the CPU core processing unit is connected with the MCU core processing unit, and the MCU core processing unit is connected with the LoRa wireless data transmission unit. Through adoption of the multi-channel concurrent downlink internet of things LoRa base station, full-duplex communication is realized, further, two-way symmetrical 8+8 channels are realized; two downlink channels are added, so as to realize two-way peer-to-peer communication, fewer packets are lost, communication is reliable, retransmission is lowered, network dropout can be determined timely, thecapability of wide area coverage is realized, and city level coverage is realized.

A time information acquisition channel setting screen includes a channel number display window, a scan state display window and a command window. A channel time information of each channel as well as channel numbers of each channel are displayed in the channel number display window. While viewing the channel numbers and the channel time information, a viewer operates a cursor and selects a channel for updating internal time information.

The invention relates to a GNSS (global navigation satellite system) intermediate-frequency data and inertia measurement data combined collector which comprises a GNSS radio-frequency unit, an inertia measurement unit and an expansion sensor unit, wherein the GNSS radio-frequency unit is connected with a data combined collection unit and a baseband receiver unit through a bus interface unit respectively; the inertia measurement unit and the expansion sensor unit are connected with the data combined collection unit through the bus interface unit; a whole-second pulse output end of the baseband receiver unit is connected with the data combined collection unit; an output end of the data combined collection unit is connected with an input end of a data transmission unit; and an output end of the data transmission unit is connected with an input end of a data storage unit. The combined collector provided by the invention adopts three collection modes through a direct collection channel, a synchronous collection channel and an asynchronous collection channel, and can realize combined collection of the inertia measurement unit, the expansion sensor unit and GNSS intermediate-frequency data with multiple different output interfaces; and the collection result includes accurate GNSS time information and has the characteristics of good time synchronization result, flexible data format, strong compatibility and the like.

The invention relates to an auditory pulse coding method and system based on sparse coding. The method comprises the following steps: constructing a kernel function group capable of expressing sound basic elements; acquiring a to-be-coded sound signal; preprocessing the to-be-coded sound signal to obtain a preprocessed to-be-coded sound signal; according to the preprocessed to-be-coded sound signal, adopting a time sequence matching pursuit algorithm to acquire a plurality of sparse codes of the preprocessed to-be-coded sound signal; and mapping each sparse code into an auditory pulse code. The auditory pulse mode codes generated by the method can be suitable for a spiking neural network, and high coding efficiency and high coding fidelity can be ensured.

The exemplary embodiment of present invention provides a sampling device and method in a wireless communication system that is capable of precisely measuring a distance by combining data blocks passing through at least two delay paths and performing sampling thereon.

To this end, the sampling device includes: a delayer that delays received signals in a block unit; a delay path selector that selects any one of a plurality of delay paths to control the delayer to apply the selected delay path to each block; a sampler that performs sampling for each block delayed by the delayer; a signal processor that combines at least two sampling blocks sampled by the sampler; and a timing tracker that tracks reception timing of the combined signal, wherein the delayer includes at least two selectable delay paths.

The invention provides a time determination method and system based on hierarchical control and a medium. The time determination method comprises the following steps: S1, each standby TS receives a wireless time service signal and completes respective first time service integrity monitoring based on the wireless time service signal so as to obtain a first 1PPS of the standby TS, the first 1PPS is a demodulation second of the standby TS, and the wireless time service signal does not access a hierarchical control network; S2, each main TS completes respective second time service integrity monitoring based on a wired time service signal received by the wired time service link so as to obtain a second 1PPS of the main TS, and the second 1PPS is a demodulation second of the main TS; and S3, a deviation between the first 1PPS and the second 1PPS is determined, and third time service integrity monitoring is completed based on the deviation as time service integrity information of the current node.