KR19990026004A - How to display the world time of a radio receiver - Google Patents

Abstract

The present invention relates to a method of displaying a world time of a radio call receiver, and more particularly, to a world of radio call receivers capable of displaying the current time of a home country of a radio call receiver and the current time of major cities of various countries having a time difference based thereon. The time display method.

The present invention is a first step of setting each local time for a plurality of major cities of the world at the time of the initialization process in advance to have a difference by the corresponding time difference from the preset current time of Korea and set to the reception standby state to display the current time And a second step of converting from the reception standby state to a time adjustment mode, and a third step of storing a corrected current time when the modification is made by determining whether the current time is corrected in the time adjustment mode; It is characterized by comprising a fourth step of automatically changing the local time of a number of major cities of the world based on the time difference between the time before and after the correction of the time and then stores it.

Description

How to display the world time of a radio receiver

The present invention relates to a method of displaying a world time of a radio call receiver, and more particularly, to a world of radio call receivers capable of displaying the current time of a home country of a radio call receiver and the current time of major cities of various countries having a time difference based thereon. The time display method.

Currently, there is a widespread wireless call receiver that uses a landline telephone to notify a call message wirelessly in a state where it is impossible to make a direct call with the receiver. According to the wireless call receiver, when a number of a wireless call receiver is called by a wired subscription telephone. Vibration or alarm sounds are generated to indicate that there is a call to the radio call receiver, while a call message such as the caller's phone number is displayed on the indicator.

Conventional radio receivers receive RF signals for converting high frequency signals received through antennas into binary data after amplifying, frequency downconverting, filtering, demodulating and waveform shaping, and receiving and decoding the binary data. A decoder for determining whether the address of the received message matches a unique address, a microprocessor that receives the output signal of the decoder and controls all functions of the receiver, and stores a system control program to store the received message. It consists of a memory, an alarm such as a vibration motor / buzzer for notifying the reception of a message, and an indicator for displaying the telephone number and reception time of the received caller.

The conventional radio call receiver displays a received message and a message reception time on an indicator when a message is received, and generates a vibration, a beep, or a melody according to an alarm mode set by a user to notify the reception of the message.

In the conventional wireless paging receiver, as shown in FIG. 1, when the receiver is in a reception standby state, a current time 1 is displayed at the bottom of the display 10, and a current state of the receiver, that is, a reception area display 2, is displayed at the bottom of the display 10. ), The lock and unlock indication (3) of the call message, the alarm indication (4), the vibration indication (5) in the alarm mode, and the like are displayed as symbols.

However, in this case, the current time (1) and the day of the week (6) is conventionally displayed on the display unit 10, which is inconvenient to know the current time of another country having a time difference from the current time. Therefore, in this case, if the current time of another country is known, numerical calculations between the current time and the time difference table of the country could be used to estimate only the inaccurate time when the time difference and the exact time difference between countries are not known. .

Therefore, the present invention has been made in view of the problems of the prior art, the purpose of which is the radio call receiver that can display the current time of the home country and the current time of the major cities of various countries with a time difference based on this The present invention provides a method for displaying world time of a receiver.

1 is a display example of an indicator showing an initial state of a conventional paging receiver,

2 is a schematic block diagram showing a configuration of a radio call receiver in which a world time displaying method according to the present invention is implemented;

3 is a display example showing world time on the indicator shown in FIG. 2;

4 is a flowchart for explaining a world time display process of the radio call receiver shown in FIG. 2;

5 is a flowchart illustrating a natural update operation of the current time and world time according to the present invention.

* Explanation of symbols on the main parts of the drawings

101; Antenna 102; RF receiver

106; Decoder 108; CPU

110; ROM 112; RAM

114; Data output section 116; Indicator

118; Buzzer 120; Vibration motor

122; Key input section 124; Clock generator

126; Reception time generation unit 130; Day of the week

132; time

In order to achieve the above object, the present invention, in the initializing process, each preset local time for a number of the world's major cities in advance to have a difference as much as the corresponding time difference with the current time of the initial setting of the Republic of Korea received and displaying the current time A first step of setting to a standby state, a second step of switching from the reception standby state to a time adjustment mode, and if the modification is made by determining whether the current time is corrected in the time adjustment mode, the modified current time is stored; And a fourth step of automatically changing the local time of the plurality of major cities of the world based on the time difference between before and after the correction of the current time and storing it. Provides a way to display world time.

If the local time is one day slower than the current time in Korea, it can be indicated by adding a minus sign.

In the present invention, the first major city name and the local time of one of the plurality of major cities in the world according to the step of converting from the reception standby state to the world time adjustment mode using the first switch, and converted to the world time adjustment mode Displaying a second main city name and a local time according to the operation of the first switch if there is no time correction and storing the modified local time for the first major city; The method may further include displaying / modifying local time for a plurality of major cities, including local time of the second major city, in the same manner as the local time correction for the first major city. This display and correction of world time is used to read the world time and to set the correct time according to the implementation of summer time in each country.

Meanwhile, after executing another mode from the reception standby state, it is always updated to the correct time by executing the natural change and storage of the current time and the local time of the main city according to the clock provided from the built-in time generator. have.

As described above, in the present invention, by displaying the current time of the home country and the current time of the major cities of various countries having a time difference based on the same by operating a function switch outside the receiver for a predetermined time, it is a useful world time in response to the era of globalization. Information can be provided conveniently.

(Example)

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a schematic block diagram showing a configuration of a radio call receiver in which a world time display method according to the present invention is implemented, FIG. 3 is a display example showing world time on the indicator shown in FIG. 2, and FIG. FIG. 5 is a flowchart illustrating a process of displaying world time of the radio calling receiver, and FIG. 5 is a flowchart illustrating a natural update operation of the current time and the world time according to the present invention.

First, referring to FIG. 2, the radio call receiver to which the present invention is applied is amplified, frequency down-converted, filtered, demodulated, and waveform-formed after the antenna 101 and the antenna, similarly to the prior art, and then binary. An RF receiver 102 for converting the data, a decoder unit (DEC) 106 for receiving the binary data and performing decoding to determine whether the address of the received message matches the unique address, and an output signal of the decoder unit Receive a microprocessor (CPU) 108 to control all functions.

In addition, the CPU 108 stores a control program necessary for overall system control including a world time display operation as shown in FIG. 4, a ROM 110 storing its own address (ID), and data being processed. The RAM 112 for temporarily storing is connected.

On the other hand, on the output side of the CPU 108, a data output unit 114 for driving the indicator 116 made of the LCD shown in FIG. 3 to display various setting states of the receiver including a message according to an incoming call and a current time; A buzzer 118 for generating a beep sound for notifying the incoming call in the beep mode and a vibration motor 120 for generating vibration for notifying the incoming call in the silent mode are connected.

In addition, the input side of the CPU 108 has a read switch SW1 used to read a received message or to confirm a condition indicated on the display 116, and to change various functions including the world time display, change a number, lock or unlock a message, The key input unit 122 is connected to a function switch SW2 used for selecting individual deletion and a selection switch SW3 used for function selection, movement and lamp operation.

In this case, the switches SW1-SW3 of the key input unit 122 may be changed to 2-5 depending on the preparation of the control program.

The receiver also includes a clock generator 124 for generating a reference clock signal for operating the CPU 108 and generating a time signal, and a reception time generator 126 for providing a reception time when an incoming call occurs according to the control program. Include.

Hereinafter, the process of displaying the world time according to the present invention in the radio call receiver as described above will be described in detail with reference to FIGS. 4 and 5.

First, when the wireless call receiver is powered on and powered on, the CPU 108 initializes all functions of the system according to an initialization routine stored in the ROM 110 and enters a reception standby state (S1, S2). ). In the reception standby state, the receiver performs a time display function as shown in FIG. 3A to display the day of the week SUN 130 and the time 12: 00A 132 of the initial state as the current time at the bottom of the display 116. Where A stands for AM and means morning time.

Meanwhile, as shown in Table 1, since there is a predetermined time difference between the major cities of Korea and the world, in consideration of this, in the present invention, the local time of each major city is set in advance so as to have a difference by the time difference described above. . For example, Los Angeles (LA) has a time difference of (-) 17:00 with Korea, so it is initially set to (-) 7: 00A, and in Hong Kong (HK), it has a time difference of (-) 1:00. Therefore, it is initially set to (-) 11: 00P. Here, the minus sign added before the time indicates that it is one day slower than Korea.

World timetable Korea Sydney (SN) Los Angeles (LA) New York (NY) London (LD) Bangkok (BK) Hong Kong (HK) Time difference 0 +1 -17 -14 -9 -2 -One Initial time 12:00 A 1: 00A -7: 00 A -10: 00A -3: 00P -10: 00P -11: 00P current time 9: 00A 10: 00A -4: 00P -7: 00P 12:00 A 7: 00A 8: 00A

Then, when the user adjusts the present time of the initial state to the correct present time, the day / time adjustment mode may be first selected using the function switch SW2. For example, the function setting mode of the wireless call receiver is vibration / call sound selection mode, power on / off selection mode, receiving area automatic / manual selection mode, all message deletion mode, day / time adjustment mode, alarm on / off selection mode. A plurality of modes are provided, such as an automatic power supply ON / OFF selection mode and a world time adjustment mode. The selection of each mode can be generally selected according to the number of presses of the function switch SW2.

For example, the vibration / calling sound selection mode is selected when the function switch (SW2) is operated once, and the day / time adjustment mode is selected when the function switch (SW2) is operated five times consecutively. In this case, the world time adjustment mode is selected after 10 consecutive operations.

Therefore, when the function switch SW2 is operated once (S3), the vibration / calling sound selection mode is selected (S3A), and in this case, one desired by the user using the selection switch SW3 in accordance with a well-known procedure, for example. Set to the state of (S4). Thereafter, the set reception alarm mode is automatically stored (S5) or returns to the reception standby state according to the operation of the read switch SW1 (S17).

Similarly to the above, if the function switch SW2 is operated five times (S3), the day / time adjustment mode is selected (S3B), and the present time of the initial state is changed to the correct current time, for example, MON 9: 00A. In case of correction, move to the position to be corrected with the selection switch SW3 and set the correct current time by changing the number using the function switch SW2. Then, the corrected current time is automatically stored (S6, S7).

Then in a subsequent step (S8) the difference between the initial time and the modified current time, ie 9:00, is used to update the current time of the world's major cities so that each world time is automatically displayed as shown in Table 1 above. The changed contents are automatically stored (S9), or return to the reception standby state according to the operation of the read switch SW1 (S17). In this case, the modified day of the week and the current time are displayed on the screen of the display 116 of the reception standby state as shown in FIG. 3B.

On the other hand, similar to the above, if the function switch SW2 is operated 10 times (S3), the world time adjustment mode is selected (S3C). It is used when the world time is correctly set during the summer time period for a country or city that has a summer time system that advances the reference time by a certain time, for example, one hour in the summer.

When the world time adjustment mode is selected in the above manner, the current time LA -4: 00P of Los Angeles LA is first displayed on the display 116 as shown in FIG. 3C (S10).

Then, if the time is corrected using the selection switch SW3 and the function switch SW2 by the adjustment time according to the daylight saving time system, the modified time is automatically stored by one operation of the function switch SW2 (S11, S12, S13).

If the function switch SW2 is operated once again without time correction in step S10 (S13), the current time NY -7: 00P of the next world city, for example, New York (NY), is shown in FIG. 3D. As shown.

In this case as well, the same procedure as in the steps S11, S12, and S13 described above shows the current time LD 12: 00A of the London LD as the next city as shown in FIG. 3E.

In addition, it is possible to know the local time HK 8: 00A for Hong Kong (HK) by using the function switch SW2 and the selection switch SW3 in the same manner as described above, and to perform time correction (S14, S15, S16). . After that, when the read switch SW1 is operated, it returns to the reception standby state of step S2.

Further, in the present invention, the operation may be returned to the reception standby state by operating the read switch SW1 at any stage, and may be configured to automatically return to the reception standby state even when no switch operation is performed for a predetermined time or more. have.

The present time (local time) for the world's major cities can be read in the above-described manner, and time correction can be performed if time adjustment is required according to the implementation of summer time.

Meanwhile, in the above-described embodiment, the user manually modifies the current time and accordingly changes the world time. However, in the present embodiment, as shown in FIG. 5, the present current is corrected from the clock generator 124 provided in the receiver. The clock related to the time is supplied to the CPU 108, and accordingly, the CPU 108 performs a natural change of the current time and displays it on the display 116 (S21).

Thereafter, the current time is stored (S22), and based on the clock, a natural change to the world time is executed in the same manner as the update of the current time (S23).

After that, the changed world time is stored (S24), and the display returns to the reception standby state displaying the current time (S25).

This is because the built-in clock generator 124 continues to operate and returns to the reception standby state when the receiver is not in the reception standby state, that is, when the message is read or various selection modes are performed. Changes are made.

As described above, the present invention displays the current time of the home country and the current time of major cities of various countries having a time difference based on the same by operating a switch outside the receiver for a predetermined time, and thus is a useful world time in response to the era of globalization. Information can be provided conveniently.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (4)

A first step of presetting each local time for a plurality of major cities of the world at the time of initialization processing to have a difference by a corresponding time difference from the preset current time of Korea, and setting the reception time to display a current time; A second step of switching from the reception standby state to a time adjustment mode; Determining whether the current time is corrected in the time adjustment mode, and when the modification is made, storing the modified current time; And a fourth step of automatically changing local time of a plurality of major cities of the world based on the time difference between the before and after correction of the current time, and storing the local time. The method of claim 1, wherein the local time is displayed by adding a negative sign when the local time is one day slower than the current time in Korea. The method of claim 1, Converting from the reception standby state to a world time adjustment mode using a first switch; Displaying a first major city name and a local time of one of the plurality of major cities in the world as the world time adjustment mode is converted; Storing the case of modifying the local time for the first major city and displaying the second major city name and the local time according to the operation of the first switch if there is no time correction; And displaying / modifying local time for a plurality of major cities, including local time of the second major city, in the same manner as the local time correction for the first major city. How to display world time on receiver. The method according to claim 1, wherein after executing another mode from the reception standby state, natural changes and storages of the current time and the local time of the main city are executed according to a clock provided from an embedded time generation unit. How to display the world time of the radio receiver.