KR0173540B1 - Synchronizer of time information and its control method - Google Patents

Abstract

The present invention wirelessly transmits the current real-time information (or even date information) at a predetermined time interval in one transmitting apparatus, receives and detects the transmitted time information from a plurality of receiving apparatuses, and detects the detected time information. By using this, a plurality of receiving apparatuses can perform a task with synchronized time information, as well as a synchronization apparatus of time information, which makes it possible to exclude components related to obtaining time information from each receiving apparatus. It relates to a control method.

Conventional electronic, electrical, and communication devices use oscillators (real time clock generation means) for acquiring time information for each device, and use time information generated by the real time clock generation means. Since they do not coincide and each device must have a separate oscillator, the circuit configuration becomes complicated and the manufacturing cost increases.

In order to solve the above problem, the present invention transmits time information (which may have a meaning including date information) in one transmission device at a predetermined time, and simultaneously receives the time information from all the receiving devices. By using the received time information, the time information is synchronized, and the desired work is performed by each device independently or in association with each other in a network or the like with always consistent time information (performing a function requiring time information). This can be done at the correct time.

Description

Synchronizer of time information and its control method

1 is a block diagram of a synchronization device for time information of the present invention.

2 is a block diagram of an embodiment of a synchronization device for time information of the present invention.

3 is a flowchart of a method for controlling transmission of time information according to the present invention.

4 is a flowchart of a method for controlling reception of time information according to the present invention.

* Explanation of symbols for main parts of the drawings

10: wireless time data transmission device 20: wireless time data using device

10a: conversion determining unit 10b: time data transmitting unit

20a: reception converting section 20b: discrimination processing section

101: real time clock generator 102: timer

103 control unit 104 local oscillator

105: mixer 106: RF amplifier

107, 201: antenna 202: receiver

203: demodulator 204: detector

205: use part

The present invention wirelessly transmits the current real-time information (or even date information) at regular time intervals in one transmitting apparatus, receives and detects the transmitted time information from a plurality of receiving apparatuses, and detects the detected time information. By using

A device for synchronizing time information and a method of controlling the same, which enables a plurality of receiving apparatuses to perform a task with synchronized time information, as well as to exclude a component related to obtaining time information from each receiving apparatus. will be.

For example, the present invention transmits time (including date information) information wirelessly at a predetermined time interval in a mobile communication company providing a wireless calling service, and the wireless call receiver only receives and displays the transmitted time information. In addition, the present invention provides a synchronization device and a method of controlling the time information that can ensure that the time information of all radio call receivers is matched with the correct time.

Alternatively, the time information receiving means on the radio call receiver side is attached to another device, for example, a TV, a VCR, a hotel PA system, a general wrist watch, a home wall clock, and any other device which displays all the time. The present invention provides a synchronization device and a method of controlling the time information to ensure the use of the matched time information.

Alternatively, by synchronizing the time information from the satellite and receiving it, the time information synchronizer and its control method can be used so that the time information of all time information utilizing devices in a wide area (country) can be operated in a consistent state in standard time. To provide.

Conventional devices such as electronic, electrical and communication devices have oscillators (real time clock generation means) for acquiring time information for each device, and use time information generated by this real time clock generation means.

For example, if a TV receiver and a VCR are used at home, each device has a time generator and uses the time information separately. Often, the display time of the TV and the display time of the VCR are different. You will be confirmed.

This is usually due to the difficulty of setting the correct time when the user initially sets the time (including date) of the device for each device and due to the error of the built-in time generator for each device.

That is, the user usually sets the current time of visually checking the clock to the TV and also adjusts the VCR to the VCR, so that the time displayed on each device is different due to the time difference caused by the naked eye. The inherent function of using the time information for each device, for example, the execution of the TV sleep reservation function (the function of automatically turning off after watching a certain time) or the incorrect time when the VCR reservation recording function is executed. It causes the inconvenience of performing the function.

The inconvenience caused by the time mismatch for each device is also, for example, when the time indicated by the clock hanging in the lobby of a hotel, etc., and the time indicated by the clock hanging on each floor or room are different. Also appears.

It is no exaggeration to say that virtually all of the devices we use display different times, as devices using multiple computer systems recognize the current time with each oscillator for each computer system.

The present invention provides a device for synchronizing time information and a method of controlling the same so that problems such as inconsistency of time information and inconvenience caused by the above-described information, time error of device control, and inaccurate use of time information can be solved. For that purpose.

In order to solve the above problem, the present invention transmits time information (which may have a meaning including date information) in one transmission device at a predetermined time, and simultaneously receives the time information from all the receiving devices. By using the received time information, the time information is synchronized, and the desired work is performed in which each device is independently connected to each other independently or in a network or the like with a consistent time information (performing a function requiring time information). Another goal is to make sure that it can be done at the correct time.

In addition, the present invention can eliminate the use of a separate device-modified oscillator, real-time clock IC, etc. for generating time information in each receiving device, thereby simplifying circuit configuration and cost reduction Another object of the present invention is to provide an apparatus for synchronizing time information and a control method thereof.

FIG. 1 shows a configuration of a synchronization device for time information of the present invention for achieving the above object.

As shown in FIG. 1, the apparatus for synchronizing time information of the present invention,

One time data transmitter 10 for transmitting accurate time data wirelessly, and a plurality of time data transmitters 20 using time data by wirelessly receiving time information transmitted from the time data transmitter 10. It consists of.

The time data transmitting apparatus 10 includes a conversion determining unit 10a for making current data into time data at regular time intervals, and a time data transmitting unit 10b for wirelessly transmitting time data configured in the conversion determining unit 10a. ),

The time data using apparatus 20 includes a reception converting unit 20a for receiving and converting wireless time information output from the time data transmitting apparatus 10 into a usable form and the receiving converting unit 20a. And a discrimination processing unit 20b for discriminating the time information and using the same time information as appropriate information required by each device.

In the time data transmitting apparatus 10, the conversion determining unit 10a recognizes the current time for each interval to transmit the predetermined time-time information promised in advance, and provides the current time information to the time data transmitting unit 10b. The time data transmitter 10b converts (modulates) the input time information into an RF signal and outputs time information for wireless transmission.

In the time data using apparatus 20, the reception converting unit 20a receives the transmitted time information and converts the time information into a form usable by the device. In the case of time information, demodulation and detection of time information are performed, and the time information is provided to the determination processing unit 20b. The determination processing unit 20b determines the current time from the input current time information, and the current time. The information is processed to perform a function required by the device (a function using time information) (for example, control of a reservation recording in the case of a VCR).

When the above-described series of operations are performed at regular time intervals, the multiple user devices 20 can perform tasks with the same time information in synchronization with the same time information provided by one transmitter 10. The above object of the present invention is achieved.

The wireless time data transmitter 10 may be applied to one transmitter on a wirelessly connected network, and the wireless time data using apparatus 20 may be applied to a plurality of receivers on a wirelessly connected network. have.

In the above example, in the case of a TV and a VCR, the reception circuit means of the radio time data using device 20 is incorporated into a TV and a VCR in the home as a radio call receiver, and the radio time data transmission device described above by the radio call service company ( If time information is provided at a time by using the time transmission circuit means of 10), all devices will be able to use the same time information at the same time, and in the case of several clocks such as a hotel as in the above example, the hotel All clocks in it will display the matched time.

Alternatively, if the transmitter is applied to the satellite and the receiver is applied to a device using information from the satellite, all receivers will be able to utilize the matched time information.

For example, if a satellite sends time information as described above, each country has its own time zone code and the time value (GMT time) sent by the satellite is added so that the time in that region is displayed. It will also be possible to ensure the effectiveness of the metropolitan system where all the time information in the countries belonging to is consistent.

FIG. 2 is an embodiment in the case where the time information synchronizing apparatus of the present invention transmits time information wirelessly and receives and uses the wireless time information.

First, the configuration and effects of the transmitters 101, 102, 103, 104, 105, 106, and 107 in FIG. 2 are as follows.

The real time clock generator 101 is connected to the control determination unit 103 and supplies current time information to the control determination unit 103.

The timer 102 is connected to the control determining unit 103 and makes the control determining unit 103 recognize that the timing of the transmission of the time information is reached at regular time intervals, for example, the control determining unit 103 at predetermined time intervals. You can apply a method to interrupt.

The control determination unit 103 is connected to the real time clock generator 101 and the timer 102, and also to the mixer 105 to output time information.

The control panel stage 103 reads the current time information provided by the real time clock generator 101 and provides the current time information to the mixer 105 when the timer 102 is interrupted.

The first input of the mixer 105 is connected to the output of the control determination unit 103, and the second input of the mixer 105 is connected to the output of the local oscillator 104.

The mixer 105 performs a function of modulating means for mixing the time information output from the control determination unit 103 with the local oscillation frequency output from the local oscillator 104 to modulate the time information into an RF signal including the time information.

An RF amplifier 106 is connected to the output terminal of the mixer 105.

The RF amplifier 106 amplifies the RF-modulated time information to a predetermined level sufficient for wireless transmission and transmits the RF-modulated time information through the antenna 107 connected to the output terminal of the amplifier 106.

The radio time information transmitted in this way is received and processed by the reception apparatuses 201, 202, 203, 204 and 205 of the radio time information.

An antenna 201 for receiving an RF signal is connected to an input terminal of the receiver 202, and an output terminal of the receiver 202 is connected to a demodulator 203.

The receiver 202 tunes the time information transmitted by the RF radio to an intermediate frequency signal, and inputs the converted time information to the demodulator 203.

An output terminal of the receiver 202 is connected to an input terminal of the demodulator 203, and an output terminal of the demodulator 203 is connected to an input terminal of the detector 204.

The demodulator 203 demodulates the time information input from the receiver 202 and inputs it to the detector 204.

The detector 204 detects the current time information required by the input demodulation signal and provides the time information to the user unit 205 connected to the output terminal of the detector 204.

The user unit 205 supplies the input time information in a suitable form available to the device. For example, in the case of a VCR, the user unit 205 may be a circuit for displaying the current time.

As described above, a plurality of receiving apparatuses simultaneously receive time information wirelessly transmitted from one transmitting apparatus and perform processing with a matched time.

4 is a flowchart showing a method for controlling the transmission of time information of the radio, which is a first step of determining whether the time information is transmitted at a predetermined time interval and a timing of transmitting the time result of the determination of the first step. In this case, the method may be controlled by a second process of converting the current time into data of a predetermined format and a third process of processing and transmitting the time data converted in the second process according to the wireless transmission format.

The first process is a process in which the control panel end 103 receives an interrupt from the timer 102, and recognizes the transmission timing information provided from the timer at a predetermined time interval.

In the second process, when the control determination unit receives the transmission timing information from the timer, the control unit recognizes the current time information provided by the real time clock generator 101, and wirelessly recognizes the current time information. It is converted into transmission information.

The third process is a process of processing the time data converted into the radio transmission information into RF format data and outputting the same to the radios 106 and 107.

FIG. 5 is a flowchart showing a process of receiving and processing the wirelessly transmitted time information in a receiving apparatus, continuing with the above-described transmission control procedure;

A fourth process of receiving time data, a fifth process of converting the time data received in the fourth process into usable forms, and a process of discriminating and providing the time data converted in the fifth process to the user apparatus; It is characterized by controlling in 6 processes.

The fourth process is a process of receiving the time information transmitted by the RF receiver 201 and 202 wirelessly.

The fifth process converts the received time data, and the RF demodulator 203 restores the time information wirelessly received to the original time information before being modulated.

The sixth process is a process of detecting and demodulating the RF demodulated time information to the use unit 205 for processing.

As described above, according to the synchronization device of the time information and the control method thereof, time data transmitted from one time data transmission device is received and displayed by a plurality of time data using devices without a separate oscillator and time processing circuit. Therefore, multiple time data using devices do not need separate time setting for each,

In addition, since there is no need to have a separate oscillator, it is possible to simplify the circuit configuration and reduce the cost,

Multiple time-using devices are always able to proceed with the matched time information, thereby ensuring a high time reliability and accuracy.

Claims (2)

One transmitting means for transmitting real time information to a plurality of receiving apparatuses; Means for generating a real time clock, converting means for determining the current time information of the real time clock generating means at regular time intervals and processing the time information appropriately in a transmission format, and time information converted by the converting means wirelessly. Means for transmitting, and a plurality of receiving means for receiving time information transmitted from said one transmitting means; Means for receiving the transmitted time information wirelessly, means for converting the time information received by the input means into time information before being converted into a transmission format, and means for discriminating and using the converted time information. ; Synchronizing device of time information, characterized in that consisting of. A first step of determining whether to transmit time information at a predetermined time interval, a second step of converting a current time into data of a predetermined format when the timing result of the determination of the first step is to transmit time information, and the second step A third process of processing and transmitting the time data converted in accordance with a wireless transmission format, a fourth process of receiving the wirelessly transmitted time data, and converting the time data received in the fourth process into usable forms And a fifth process of discriminating and processing the time data converted in the fifth process and providing the same to the user device.