JP3105824B2 - Radio selective call receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio selective calling receiver, and more particularly to an improvement of a clock function of a radio using time information included in a calling signal and display of two or more times (world time). Etc.) Improving the time display function.
You.

[0002]

2. Description of the Related Art Conventionally, in this type of radio selective calling receiver, generally, when a user moves between reception areas having a time difference, if the user has only one time-measuring means, he or she eventually moves. It will be forcibly changed to the timekeeping method using the local time of the previous reception area.

[0003] There is also provided a technical means for displaying a plurality of times by one time means using a time difference offset. For example, JP-A-6-188814 discloses that when a reception area code is received together with a transmitted call signal, the reception area code is added or subtracted from the area data based on the time difference data of each reception area based on Greenwich Mean Time. There is disclosed a technique of rewriting the time of the clock means.

[0004]

However, a first problem of the prior art is that a radio selective calling receiver having a clock section and a display section automatically adjusts the time based on time information included in transmission information. In such a case, when traveling a long distance where a time difference occurs, only the time of the destination can be confirmed. For example, it is impossible to recognize the time of a desired reception area such as a home area. is there.

[0005] In the receiver having such a function, in order to always recognize the time of a specific area irrespective of the place of movement, it is necessary to stop the time adjustment function before moving. The reason is that it has only one clock function,
Also, the time information transmitted from the transmitting side when performing automatic time adjustment of the receiver is only the time corresponding to the reception area, so the time of the reception area is forcibly forced unless the automatic time adjustment function is stopped. This is because it is received and displayed.

A second problem is that the time difference data of each reception area, which is stored in association with the area code corresponding to the time display of a plurality of areas and is based on Greenwich Mean Time, is switched and used. The table configuration and timing are complicated.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems and to provide a radio selective calling receiver with improved user operability. A receiving unit that receives and demodulates a radio signal modulated by a selective call signal including time information in transmission information from a base station, the transmission of which is controlled at least in synchronization with a standard time, and controls an operation of the receiving unit. Then, there is a time difference that can be received by a control unit that determines and processes call reception and time information from the obtained demodulated signal and a radio paging receiver that has a clock unit that holds the obtained time information at least temporarily. When time information is received in a plurality of reception areas, the time information is stored for each reception area, and a clock unit having a function of measuring time is displayed, and the time information corresponding to each reception area is displayed. Lies in that and a display unit. A second feature is that the storage unit of the time information corresponding to the reception area is grouped in the clock unit, and the display unit is divided into at least two or more groups and time display switching is performed. Third feature
When moving in the reception area, the current reception area is recognized by the destination base identification information included in the transmission information transmitted from the base station to the receiver, and the corresponding time information in the display unit is Is to change the display method.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a radio selective calling receiver according to the present invention. Reference numeral 1 denotes a receiving unit, which controls the start of transmission in synchronization with the standard time and receives and demodulates a radio signal S modulated by a selective call signal including time information in transmission information from a base station.

The data 101 demodulated by the receiving unit 1 is input to the control unit 2. The data 101 is an ID-ROM based on the individual information data 102 written in advance by the control unit 2.
5 is read by the read data individual information 103, and when they match, the own time is determined for the transmission system.

The control unit 2 sets the time information obtained from the receiving unit 1 at the time of synchronization in a table for each reception area of the clock unit 3 according to the reception area identification information obtained at the same time. Holds time information until information is transmitted. The control unit 2 uses the display unit 4 to display time and an incoming message.

The operation of this embodiment will be described with reference to the flowchart of FIG. When moving to a certain area, the receiver stores the frequency and base information in the received transmission information in the ID-ROM.
When the individual information matches the individual information in No. 5, the synchronization is pulled in (step 201).

Waiting for data after synchronization (step 20)
If time information is received in 2) (step 20)
3), according to the base identification information included in the reception information,
The time information is written and stored in the storage location of the clock unit corresponding to each area, and time measurement is performed (step 204).

At this time, if the received time information is the home area set in the clock unit 3 (step 20)
5), and the time is displayed on the display unit 4 as the time for the home area (step 206). If it is determined in step 205 that the time is the sub area, the time is displayed on the display unit 4 as the time for the sub area (step 2).
07).

FIG. 3 shows an embodiment of a method of storing the time display in the clock unit 3. In the storage table 301, areas 1 to M are home area areas, and time 1 to time M corresponding to each home area are stored. Areas M + 1 to N are sub-area areas,
Times M + 1 to N corresponding to each sub area are stored.

Further, an example of display control of the display unit 4 will be described with reference to FIG. In the figure, reference numerals 401, 402, and 403 show display examples of the display screen. In this example, the synchronizable areas in the individual information of the ID-ROM 5 are area 1 (home area), area 2 (sub area), and area 3 ( Sub-area).

Assuming that the user has moved to the area 1, the synchronization is introduced when the frequency of the received information and the base identification information included in the received information match the individual information in the ID-ROM. After that, when the time data is received, the area 1 of the clock unit 3 is
The time is stored in the table and timed, and the time of the home area clock on the display unit 4 is corrected. At this time, the clock in the home area is enlarged and displayed as shown at 401.

Next, when the user moves from the home area 1 to the sub area 2, the synchronization is lost, and the
Assume that time data is received after synchronization. This data is stored in the table in the area 2 of the clock section and timed according to the base identification information. As a result, the clock on the display unit becomes 402
The time is corrected to the time of the sub-area 2 as shown in FIG.

When time data is received after moving from sub-area 2 to sub-area 3 for synchronization, the time data is similarly stored and clocked in the area 3 table of the clock section, and the clock of the display section is indicated by 403 as shown in FIG. It is corrected to the time of area 3.

Next, a second embodiment of the present invention will be described with reference to a table 501 of the clock unit 3 shown in FIG. The basic configuration of the present invention lies in that time information is divided and stored for each area, and time measurement is performed. In the first embodiment of FIG. 1, the home area and the sub area are grouped and displayed. On the other hand, in the embodiment of FIG.
The point of time measurement is the same as that of FIG. To be displayed.

In this case, the hardware of the display unit is configured so that the clock switching in other areas is performed by a manual switching operation. With this configuration, it is possible to know only the time of the reception area necessary for the user.

A third embodiment of the present invention will be described with reference to a clock table 601 shown in FIG. 1st, 2nd
In the embodiment of FIG. 6, only the received time information, minute information, and second information are separately stored for each area, and the time is measured. In the embodiment of FIG. 6, the minute and second information in the receiver is shared by all reception areas. In this case, when time information is received, only time information is stored.

In this case, the minute and second information common to all areas is the time information received in the reception area at the current location, and time measurement is performed for a plurality of other areas having a time difference. With such a configuration, the table is simplified and time calculation is simplified.

That is, in the radio selective calling receiver of the present invention, a plurality of time data are held in the clock section.
The clock for adjusting the time is automatically switched between a reception area normally used by the user (hereinafter referred to as a home area) and a reception area at a destination where a time difference occurs (hereinafter referred to as a sub area).

As an example, assume that the user is currently in the home area and has moved to a sub-area where a time difference occurs. In the home area, the base station receives base identification information from the base station when the receiver synchronizes, determines that the home area is in use, and stores the home area information stored in the clock section based on the time information in the transmission signal. Automatic time adjustment of the time of. At this time, the time adjustment for the sub area is prohibited.

When moving to the sub area, when the synchronization is once lost and the sub area is synchronized again, the sub area base identification information is received, the sub area is determined, and the time adjustment for the home area is prohibited. Performs automatic time adjustment for the sub area.

As described above, the time adjustment between the home area and the sub area is automatically switched, and the automatic adjustment of the other time is prohibited when the one time is automatically adjusted. Can be confirmed, and the world time can be easily recognized.

[0027]

As described above, according to the present invention, the time storage destination is divided according to the area.
Radio selective calling that allows the user to define and display the reception area that the user normally uses as the home area and the reception area at the destination where the time difference may occur as a sub area, making it easy to recognize world time. A receiver can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a structure according to a first embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the first embodiment of the present invention.

FIG. 3 is a table showing a configuration example of a clock unit according to the first embodiment of the present invention.

FIG. 4 is a display screen diagram showing a configuration example of a display unit according to the first embodiment of the present invention.

FIG. 5 is a table showing a configuration example of a clock unit according to a second embodiment of the present invention.

FIG. 6 is a table showing a configuration example of a clock unit according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving part 2 Control part 3 Clock part 4 Display part 5 ID-ROM 101 Reception and demodulation data 102 ID-ROM writing data 103 ID-ROM reading data 104 Clock data 105 Clock data 106 Display data

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q 7/00-7/38 G04G 5/00 G04G 7/02

Claims (3)

(57) [Claims] 1. A receiving unit for receiving and demodulating a radio signal modulated by a selective call signal including time information included in transmission information from a base station, the transmission of which is controlled at least in synchronization with a standard time, and A paging receiver having a control unit for controlling the operation and judging and processing call reception and time information from the obtained demodulated signal and a clock unit for holding the obtained time information at least temporarily. When receiving time information in a plurality of reception areas having a time difference, a clock unit having a function of storing the time information for each reception area and measuring the time, and displaying the time information corresponding to each reception area Selective call receiver comprising: 2. The method according to claim 1, wherein the clock section groups the storage destination of the time information corresponding to the reception area, and the display section divides the storage area into at least two or more groups and switches the time display. The radio selective call receiver according to claim 1. 3. When the mobile station moves in the reception area, a current reception area is recognized based on destination base identification information included in transmission information transmitted from the base station to a receiver. 2. The radio call selective calling receiver according to claim 1, wherein a display method of said time information is changed.