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

System and method for enabling signal acquisition in a satellite positioning system (SPS) when signals from SPS satellites are attenuated by the operating environment of a SPS receiver. A preferred embodiment comprises a communications server (for example, communications server 220) coupled to a SPS receiver (for example, SPS receiver 210) at one end and a time server (for example, time server 225) by a public network (for example, the Internet 230). Preferably, the communications server 220 is coupled to the Internet 230 via a wireless network to facilitate maximum mobility and flexibility. The communications server 220 queries the time server 225 for the current time and then provides the current time to the SPS receiver 210. The SPS receiver 210 makes use of the current time to assist it in signal acquisition.

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.

Embodiments of the present invention are directed to a communication system that provides various automated operations, including searches of public and private resources for third party information, performance of operations to assist a user in response to keyword identification in an audio, text or video stream, and speed dial updates based on calling frequencies to various telephone numbers.

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.

The invention provides a 220V synchronous phasor measurement device on a user side. The device comprises a driving CPU and a driven CPU which are in seamless connection through a serial peripheral interface; the driving CPU is connected with a 220V alternating-current power grid through a signal acquiring and processing unit and obtains phasor information in the alternating-current power grid through FFT, and the driving CPU is further connected with a data storage unit and a display unit and controls the working state of the data storage unit and the working state of the display unit through a keyboard; the driven CPU receives the phasor information of the driving CPU and is connected with a synchronous clock unit so as to obtain accurate time information, and the driven CPU is connected with a communication unit so that the time-scale-carrying phasor information can be transmitted to a server terminal. The measurement device is low in cost, simple in structure, convenient to install and prone to achieve wide area measuring of the power grid compared with a traditional phasor measurement unit.

The invention discloses a recipe development method applied to a recipe development system; the recipe development system includes a pot tool and a stove tool. The recipe development method includes the steps that during cooking, the temperature of the pot tool and the thermal power value of the stove tool are obtained; according to the temperature of the pot tool and the thermal power value of the stove tool, a time correspondence relationship between the temperature of the pot tool and the thermal power value of the stove tool is generated; raw material information of dishes and a time pointwhen the dishes are added into the pot tool are obtained; according to the time correspondence relationship, the time point and the raw material information of the dishes, recipe data is formed. Additionally, the invention also discloses the recipe development system. According to the recipe development method and the recipe development system, on the basis of the time correspondence relationshipbetween the temperature of the pot tool and the thermal power value of the stove tool, the raw material information of the dishes, the time point when the dishes are added into the pot tool and otherinformation, the recipe data is formed, so that the recipe data is more complete, and the time information involved in the recipe data is more accurate.

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 provides an X-ray pulse detection system signal processing method. The method performs high-frequency sampling and quantification of a pulse signal output by a detector, and performs threshold filtering and peak value detection so as to obtain accurate pulse amplitude information, wherein a threshold value in the threshold filtering can be tested according to star calibration and can be adjusted online in real time. The filtering method may effectively reduce an influence of noise on X-ray pulse detection so as to obtain accurate amplitude information of an X-ray pulse signal. Further, a local crystal oscillator records local sampling time, counts received atomic clock pulses, and records GPS time. A processing module may correct the local sampling time by using the counted atomic clock pulses so as to solve a problem of clock drifting of a detection system. As a result, the processing module may achieve X-ray pulse signal detection according to a result output by the method.

Embodiments of the present invention are directed to a communication system that provides various automated operations, including searches of public and private resources for third party information, performance of operations to assist a user in response to keyword identification in an audio, text or video stream, and speed dial updates based on calling frequencies to various telephone numbers.

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 discloses a TOA estimation circuit based on a digital delay circuit. The TOA estimation circuit consists of a signal edge generation module, a synchronous matching pulse generation module, a time matching module and a time generation module, wherein the signal edge generation module utilizes the digital delay circuit to output a signal edge pulse according to the rising edge of a measured signal, and inputs the signal edge pulse into the time matching module. The synchronous matching pulse module utilizes the digital delay circuit to output a series of matching narrow pulses in sequence within a time range during measurement, and outputs the matching narrow pulses to the time matching module. The time matching module processes the input signal edge pulse and the matching narrow pulses, and a time matching signal is obtained and output to the time generation module. The time generation module outputs arrival time according to the input time matching signal. The TOA estimation circuit based on the digital delay circuit accurately estimates the arrival time of a narrow pulse signal generated by the utilization of the digital delay circuit, and has high accuracy, commonality and applicability.

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 invention discloses a method for adjusting the speed of a digital display electronic clock, belonging to the technical field of the combination of electronic technology and computer technology. According to the invention, the technical problem of the digital display electronic clock that only the time can be corrected but the running speed cannot be adjusted is solved. According to the method, a microprocessor, a digital display device, a plurality of buttons and a power supply unit are used. The method for adjusting the speed of the digital electronic clock disclosed by the invention is implemented by changing the time interval of interruption of a timer and can be widely applied to various digital electronic clocks in daily life and digital electronic clocks in the fields of scientific research, industrial measure and control and the like.

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.

A method of providing information regarding the location of a mobile user equipment (1) in a system wherein the location is determined based on information signalled from entities (10) of a positioning system and assistance data signalled from a station (5) of a communication system. In the method the likely location of the mobile user equipment relative to the station is first determined. Based on the determined likely location, an estimate of the delay in transmitting a signal from the station to the mobile user equipment is estimated. Assistance data is then signalled from the station to the mobile user equipment, said assistance data comprising information about the timing of the positioning system. A more accurate location determination is accomplished at the user equipment based on signals from the entities of the positioning system, the assistance data and said estimated delay.

The invention discloses a single-line time service and time keeping method based on a global navigation satellite system (GNSS). The method comprises the following steps of S1, receiving a satellite signal by a GNSS receiver; S2, performing down-conversion and A / D conversion on the satellite signal; S3, capturing, tracking and demodulating satellite signals to obtain original message information; S4, decoding to obtain a measured value and navigation message information of the satellite; S5, performing PVT calculation to obtain the position, speed and time information of the GNSS receiver; S6, performing time service and time keeping processing on the GNSS receiver; and S7, the GNSS receiver outputting positioning information and time service information. According to the method, GNSS navigation and time service functions are provided at the same time, navigation, positioning information and time service information of a GNSS receiver are outputted and broadcasted through the same serial port, so the equipment obtains accurate time information while obtaining the positioning information, and a serial port is saved for the equipment.