JP2002051151A - Method of renewing internal clock by sending date and time from center to lcr integrated telecommunication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically set a clock in an LCR integrated terminal by down- loading the date and time in a site, in which the LCR terminal is installed, from the center to the LCR terminal without depending user's manual operation, in countries such as the USA which have a plurality of time zones with or without a daylight-saving time system. SOLUTION: Respective time zone information and daylight-saving time information are managed in data base by the center, and the data base can be accessed with a telephone number as a retrieval key in telephone system. When the LCR terminal is connected to the center, the center receives a calling telephone number. The data base is retrieved with the calling telephone number as the retrieve key, and the date and time are downloaded to the LCR integrated terminal, after the date and time of the site, in which the LCR integrated terminal has been installed, are decided. The LCR sets the internal clock, on the basis of received date and time information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-cost line selection function for comparing telephone service charges provided by a plurality of telephone service companies (hereinafter referred to as "carriers") and automatically selecting a telephone company with a low charge. Update the clock function with calendar of telecommunications terminals (telephones, facsimile machines, key telephones, PBX devices, etc.) with a built-in (hereinafter referred to as "LCR function") by downloading from the LCR center to the LCR built-in telecommunications terminal About the method of doing. More specifically, the present invention relates to a method of automatically setting a time according to time information of an area where an LCR built-in telecommunication terminal is installed. In addition, taking into account the conditions of whether or not the area where the LCR built-in telecommunications terminal is installed adopts daylight saving time and whether it is currently during daylight saving time,
Regarding the method of automatically setting the date and time.

[0002]

2. Description of the Related Art In a telecommunication terminal with a built-in LCR function, charge information of each carrier necessary for charge comparison or information of a charge of each carrier is determined and information (hereinafter referred to as "LCR table") indicating which carrier is cheaper is determined. It determines which carrier to use (hereinafter referred to as “LCR determination”). After the LCR determination, if a certain carrier is to be used, an access code for designating the carrier is read from the storage area and dialed automatically.

[0003] Telephone charges often differ depending on whether they are holidays. In addition, telephone charges often differ depending on the day of the week. Furthermore, telephone charges often vary depending on the time of day. That is, the LCR determination requires information on whether the time of making a call (calling time) is a holiday, on which day it is not a holiday, and on the time. For this reason, a telecommunications terminal with a built-in LCR function needs a function to manage the current date and time.

[0004] Telephone charges differ between weekday daytime hours and weekday nighttime hours, and company A is cheaper during the day and company B is cheaper at night. Using the correct date, day, and time information is very important for LCR decisions.

Conventionally, the date and time adjustment of a clock function with a calendar of an LCR built-in telecommunications terminal has been left to the user. The user has manually set the date and time based on the time information of the 117 time service and the television. in this way,
Unless set by the user, the correct date and time cannot be obtained. In addition, when the power outlet of the LCR built-in telecommunication terminal is left unplugged for a long period of time, or when a long-term power failure occurs, the clock function is stopped and the correct time may be lost. In such a case, the correct date and time cannot be obtained unless the user adjusts the time again.

[0006] Another method conventionally used by some telecommunications carriers such as Daini Denden Co., Ltd. is to download date and time information from a center. When the LCR built-in telecommunication terminal connected to the center, the current date and time were downloaded from the center, and the LCR built-in telecommunication terminal adjusted the internal calendar clock accordingly. The center is
The date and time information held by the center is downloaded to all the LCR built-in telecommunication terminals regardless of the installation location of the LCR built-in telecommunication terminal. This method is effective in areas where there is no time zone difference and daylight saving time is not used, as in Japan today. However, there is a time difference depending on the time zone, such as the United States, and it cannot be used in an area that uses daylight saving time.

[0007]

As described above, the method of manually setting the user has a problem that accurate date and time information cannot be obtained if the user does not set the date and time. In addition, the method of uniformly downloading the date and time information of the center to all LCR built-in telecommunication terminals is used when there is a time difference depending on the time zone, or when daylight saving time is used depending on the region as in the United States. Had a problem that it could not be used.

[0008] An object of the present invention is to solve the above-mentioned problem, and it is not necessary for a user to manually set the object, and
Even if there is a time difference depending on the time zone as in the United States or if daylight saving time is used depending on the area, a method of correctly setting date and time information according to the location where each LCR built-in telecommunication terminal is installed Is to provide.

[0009]

In order to achieve the above object, a method of transmitting a date and time from a center to a telecommunication terminal with a built-in LCR and updating an internal clock according to the present invention is described by a method in which a center database stores time zones for each region. Information and daylight saving time information are stored. A telephone number is used as a search key for specifying an area. As the time zone information, a time zone number for specifying the time zone is used.
The time difference between each time zone number and the standard time or the center time is also stored in the database. As the daylight saving time information, information on whether daylight saving time is used for each region and whether the current time is daylight saving time is stored.

The center subscribes to a caller telephone number notification service, and when a call is made from the telecommunication terminal with built-in LCR to the center and connected, the telephone number of the telephone line to which the telecommunication terminal with built-in LCR is connected. Is notified from the telephone exchange to the center as a caller telephone number.

[0011] When the telecommunication terminal with a built-in LCR calls the center, the center receives the calling party telephone number and searches the database using the received calling party telephone number as a search key. The center obtains time zone information and daylight saving time information from the database, calculates the difference from the time managed by the center, and obtains the time of the place where the LCR built-in telecommunication terminal is installed. The center downloads the obtained date and time information to the LCR built-in telecommunications terminal.

There is a time lag between the time when the center starts downloading the date and time information and the time when the telecommunication terminal with a built-in LCR completes receiving the date and time information and adjusts the internal clock. For example, if a 1200 bps modem is used for downloading, one byte is required to be transmitted using 0.
When about 01 seconds are transmitted on paper and year, month, day, hour, minute, and second are transmitted in 14 digits, a delay of about 0.14 seconds occurs. In the actual download, information is transmitted after being divided into blocks and error correction is performed, so that a longer delay occurs.

In order to correct this delay, the method of transmitting the date and time from the center to the telecommunication terminal with built-in LCR and updating the internal clock according to the present invention predicts the length of the delay in advance and calculates the actual length of the delay. Download by adding to the time.
For example, assuming that the current actual time is 2:00:00 and the length of the delay is 3 seconds, 2: 00: 00: 00
Download 3 seconds. LCR built-in telecommunications terminal
The download order starts at 2: 00: 00: 00
Adjust the internal clock at minute 03 seconds. The downloaded time is 2:00:03, and an accurate time is set.

[0014]

The method of transmitting the date and time from the center to the telecommunication terminal with a built-in LCR and updating the internal clock according to the present invention operates as follows.

When the telecommunications terminal with a built-in LCR is installed and connected to a telephone line, it connects to the center. Also connect to the center when a situation such as a power outage for a long time that seems to have caused the internal clock to go wrong occurs.

When an incoming call is received from the telecommunication terminal with built-in LCR, the center receives the telephone number of the telephone line to which the telecommunication terminal with built-in LCR is connected by the caller telephone number notification service. The center searches the database using the received caller telephone number as a search key, and determines the current date and time when the LCR built-in telecommunication terminal is installed in consideration of the time zone information and the daylight saving time information. The center downloads the determined date and time to the LCR built-in telecommunications terminal.

The LCR built-in telecommunication terminal receives the downloaded date and time information and updates the internal clock.

If the time required for downloading is long, the time difference from when the center determines the current date and time to when the telecommunication terminal with a built-in LCR updates the internal clock is considered,
The time difference may be added to the current date and time and downloaded.

[0019]

An embodiment will be described with reference to the drawings. FIG.
FIG. 2 is a block diagram showing an embodiment of a method for transmitting a date and time from a center to a telecommunication terminal with a built-in LCR and updating an internal clock according to the present invention. 1 is a telecommunication terminal with built-in LCR, 2 is a telephone exchange network, 3 is a center, 4 is a communication device, 5 is a database for managing time zone information, 6 is a database for managing daylight saving time information, 7 is a standard time or center time. It is a clock that does. FIG. 2 shows an embodiment of the operation of the system according to the first and second aspects of the present invention in which the date and time are sent from the center to the telecommunication terminal with built-in LCR to update the internal clock. FIG. 3 shows an embodiment of the operation of the system according to the third and fourth aspects of the present invention in which the date and time are sent from the center to the telecommunication terminal with built-in LCR to update the internal clock.

According to the first aspect of the present invention, the LC from the center of the present invention is
A method of sending the date and time to the R-equipped telecommunication terminal and updating the internal clock will be described with reference to FIGS. L
The telecommunications terminal 1 with a built-in CR connects to the center 3 through the telephone network 2 (S1). From the telephone network exchange 2, the center 3
The caller telephone number S2 is received. The center 3 uses the received caller telephone number S2 as a search key and
Search for time zone information. The center 3 determines the current date and time of the location of the LCR built-in telecommunications terminal 1 using the searched time zone information based on the center time or standard time managed by the internal clock 7. Center 3
Downloads the determined current date and time S3 to the LCR built-in telecommunications terminal 1. The LCR built-in telecommunications terminal 1
Set the internal clock using the received current date and time information.

According to a second aspect of the present invention, the LC from the center of the present invention is
A method of sending the date and time to the R-equipped telecommunication terminal and updating the internal clock will be described with reference to FIGS. L
The telecommunications terminal 1 with a built-in CR connects to the center 3 through the telephone network 2 (S1). From the telephone network exchange 2, the center 3
The caller telephone number S2 is received. The center 3 uses the received caller telephone number S2 as a search key and
Search for time zone information. The center 3 searches the database 6 using the received caller telephone number S2 as a search key to obtain daylight saving time information. Center 3
Based on the center time or the standard time managed by the internal clock 7, the current date and time of the location of the LCR built-in telecommunication terminal 1 is determined using the retrieved time zone information and daylight saving time information. The center 3 determines the current date and time S3
Is downloaded to the LCR built-in telecommunications terminal 1. L
The CR built-in telecommunications terminal 1 sets the internal clock using the received current date and time information.

According to a third aspect of the present invention, the center of the present invention is an LC.
The method of sending the date and time to the R built-in telecommunication terminal and updating the internal clock will be described with reference to FIGS. L
The telecommunications terminal 1 with a built-in CR connects to the center 3 through the telephone network 2 (S1). From the telephone network exchange 2, the center 3
The caller telephone number S2 is received. The center 3 uses the received caller telephone number S2 as a search key and
Search for time zone information. The center 3 determines the current date and time of the location of the LCR built-in telecommunications terminal 1 using the searched time zone information based on the center time or standard time managed by the internal clock 7. Center 3
Adds the delay time required for download to the current date and time to correct the current date and time. The center 3 downloads the corrected current date and time S3 to the LCR built-in telecommunication terminal 1. The LCR built-in telecommunications terminal 1 sets the internal clock using the received current date and time information.

According to the fourth aspect of the present invention, the center of the present invention
A method of sending the date and time to the R-equipped telecommunication terminal and updating the internal clock will be described with reference to FIGS. L
The telecommunications terminal 1 with a built-in CR connects to the center 3 through the telephone network 2 (S1). From the telephone network exchange 2, the center 3
The caller telephone number S2 is received. The center 3 uses the received caller telephone number S2 as a search key and
Search for time zone information. The center 3 searches the database 6 using the received caller telephone number S2 as a search key to obtain daylight saving time information. Center 3
Based on the center time or the standard time managed by the internal clock 7, the current date and time of the location of the LCR built-in telecommunication terminal 1 is determined using the retrieved time zone information and daylight saving time information. The center 3 adds the delay time required for downloading to the current date and time to correct the current date and time. The center 3 downloads the corrected current date and time S3 to the LCR built-in telecommunication terminal 1. The LCR built-in telecommunications terminal 1 sets the internal clock using the received current date and time information.

[0024]

As described above, the method of transmitting the date and time from the center to the LCR built-in electric communication terminal according to the present invention and updating the internal clock does not rely on the manual setting of the user,
There is an effect that the correct time of the place where the CR built-in telecommunication terminal is installed can be automatically set. Even when a communication method that takes a long time to download is adopted, there is an effect that the time required for downloading can be corrected and a correct time can be automatically set. For reasons such as a power outage, L
Even when the clock of the telecommunication terminal with a built-in CR goes wrong, the correct time of the place where the telecommunication terminal with a built-in LCR is installed can be automatically set just by connecting to the center.

[0025]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a method for transmitting a date and time from a center to a telecommunication terminal with a built-in LCR and updating an internal clock according to the present invention.

FIG. 2 is a diagram showing an operation sequence of a method according to claims 1 and 2 for transmitting a date and time from a center to a telecommunication terminal with a built-in LCR and updating an internal clock.

FIG. 3 is a diagram showing an operation sequence of a method according to claims 3 and 4 for transmitting a date and time from a center to a telecommunication terminal with a built-in LCR and updating an internal clock.

[Explanation of symbols]

 1 Telecommunication terminal with built-in LCR 2 Telephone network 3 Center 4 Communication device 5 Database (time zone) 6 Database (summer time) 7 Clock

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04M 15/16 H04M 15/16

Claims (4)

[Claims] 1. A telecommunication terminal having a built-in LCR function for selecting and using a cheapest telephone service from a plurality of telephone services, and a center comprising the following steps:
A method of sending the date and time from the center to a telecommunications terminal with a built-in LCR. (A) a first step in which the telecommunications terminal calls and connects to a center; (b) the center receives a caller's telephone number using a caller's telephone number notification service; A second step of searching for a time zone in which the telecommunication terminal is installed using a number as a search key; (c) the center sends current date information and current time information corresponding to the searched time zone to the telecommunication terminal; A third step of transmitting (d) a fourth step in which the telecommunications terminal uses the received current date information and current time information to update a clock function with a calendar inside the telecommunications terminal; 2. A telecommunications terminal having a built-in LCR function for selecting and using a cheapest telephone service from a plurality of telephone services, and a center comprising the following steps:
A method of sending the date and time from the center to a telecommunications terminal with a built-in LCR. (A) a first step in which the telecommunications terminal calls and connects to a center; (b) the center receives a caller's telephone number using a caller's telephone number notification service; A second step of searching for a time zone in which the telecommunication terminal is installed by using a number as a search key; (c) the center uses the caller telephone number as a search key in an area where the telecommunication terminal is installed; Third step of searching whether daylight saving time is used (d) The center considers the searched time zone and whether daylight saving time is used, and determines the current date of the area where the telecommunications terminal is installed. A fourth step of determining information and current time information and transmitting the determined information and current time information to the telecommunication terminal; (e) the telecommunication terminal uses the received current date information and current time information to store the information inside the telecommunication terminal; Fifth step to update the render clock function 3. A telecommunications terminal having a built-in LCR function for selecting and using a cheapest telephone service from a plurality of telephone services, and a center comprising the following steps:
A method of sending the date and time from the center to a telecommunications terminal with a built-in LCR. (A) a first step in which the telecommunications terminal calls and connects to a center; (b) the center receives a caller's telephone number using a caller's telephone number notification service; A second step of searching for a time zone in which the telecommunications terminal is installed using a number as a search key (c) a third step in which the center searches for current date information and current time information corresponding to the searched time zone ( d) The center predicts the time required from the start of transmission by the center to the completion of reception by the telecommunication terminal and the completion of updating of the internal clock function with calendar, and calculates the required time as current date information. Fourth step of adding to the current time information (e) The center calculates the added date information and time information,
Fifth step of transmitting to the telecommunication terminal (f) Sixth step in which the telecommunication terminal uses the received date information and time information to update the clock function with calendar inside the telecommunication terminal 4. A telecommunication terminal having a built-in LCR function for selecting and using the cheapest telephone service from a plurality of telephone services, and a center comprising the following steps:
A method of sending the date and time from the center to a telecommunications terminal with a built-in LCR. (A) a first step in which the telecommunications terminal calls and connects to a center; (b) the center receives a caller's telephone number using a caller's telephone number notification service; A second step of searching for a time zone in which the telecommunication terminal is installed by using a number as a search key; (c) the center uses the caller telephone number as a search key in an area where the telecommunication terminal is installed; Third step of searching whether daylight saving time is used (d) The center considers the searched time zone and whether daylight saving time is used, and determines the current date of the area where the telecommunications terminal is installed. Fourth Step of Determining Information and Current Time Information (e) The center waits for the center to start transmitting and then completes the reception of the telecommunications terminal and completes updating the internal clock function with calendar. A fifth step of predicting the required time in the above and adding the required time to the current date information and the current time information. (F) The center calculates the added date information and time information by:
A sixth step of transmitting to the telecommunication terminal (g) a seventh step in which the telecommunication terminal updates the calendar function with a calendar inside the telecommunication terminal using the received date information and time information