JP2508325B2 - Wireless selective call receiver - Google Patents

Abstract

PURPOSE:To attain simple check by providing a 1st ID memory storing an individual selective call number different from each receiver and a 2nd ID memory storing a selective call number for check. CONSTITUTION:As ID memories, a 1st ID-ROM 30 comprising an OTP (a ROM possible for write only once) and an EEPROM as a 1st ID memory and a 2nd ID-ROM 24a comprising a ROM disable of rewrite as a 2nd ID memory storing a selective call number for checking are employed. Thus, before an individual selective call number is written in the 1st ID-ROM 30, check is applied by using a selective call number for check stored in the 2nd ID-ROM 24a. Thus, it is not required to replace the ID memory or rewrite the ID memory, and simple check is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in a radio selective call receiver, and in particular, a radio with an improved inspection method for a radio selective call receiver having a different selective call number for each receiver. The present invention relates to a selective call receiver.

〔Overview〕

The present invention is an ID-which stores a selective call number in a wireless selective call receiver having a different selective call number for each receiver.
The ROM includes a first ID-ROM in which a selective call number different for each receiver is stored, and a second ID-ROM in which a selective call number for inspection is stored. The selective call number of the first ID-ROM is provided. When is not written, the inspection of the receiver is simplified by detecting the selective call number stored in the second ID-ROM.

[Conventional technology]

FIG. 5 is a block diagram showing an example of a conventional radio selective calling receiver.

Referring to FIG. 5, conventionally, this type of radio selective call receiver has only one writable first ID-ROM 30 for storing a selective call number. This ID-ROM is a ROM that can be written only once (one-time programmable read-only memory, hereinafter referred to as OTP) or an electrically erasable and rewritable ROM (electrical
Erasable programmable read-only memory, hereafter referred to as EEPROM. ) Is used. After manufacturing the radio selective call receiver at the factory, in order to inspect many receivers at the same time, in the case of OTP, after replacing the ID-ROM of all receivers with the ID-ROM for inspection and performing the inspection, The ID-ROM was replaced with the selective call number for each receiver. Further, when the EEPROM is used, the selective call number for inspection is written once and then the inspection is performed, and then the selective call number for each receiver is rewritten.

Further, in addition to the selective call number for each receiver, there is also a receiver that has a selective call number common to all receivers and uses the latter at the time of factory inspection.

In FIG. 5, 10 is a radio signal receiving unit, 20 is a received data processing unit, which includes a decoder 21 and a one-chip CPU 25, and the CPU 25 has a processing unit 22 and a RAM (random access memory).
Includes 23 and ROM 24. Further, reference numeral 40 is a notification unit, which includes a liquid crystal display unit (LCD) 41, a diode display unit (LED) 42, and a speaker 43.

[Problems to be solved by the invention]

In the conventional radio selective call receiver described above, when testing many receivers at the same time, it is necessary to replace the ID-ROM (in the case of OTP) and rewrite the ID-ROM (in the case of EEPROM). There was a problem that it took time and effort.

Further, in addition to the selective call numbers of the individual receivers, when the selective call numbers common to all the receivers are provided, it is necessary to be able to detect both of the selective call numbers at the same time, which causes a problem that the hardware becomes complicated. Normally, in addition to the selective call number, the ID-ROM also stores information such as how to report (report time, whether or not the speaker is turned on at the time of report, etc.), and this information cannot be shared. .

An object of the present invention is to provide a radio selective call receiver capable of easily performing inspection by eliminating the above-mentioned problems, without the need to replace or rewrite the ID-ROM at the time of inspection. is there.

[Means for Solving Problems] The present invention is a radio signal receiving unit, an ID-ROM that stores a selective calling number, and the data received by the radio signal receiving unit is processed and stored in the ID-ROM. The received data processing unit for detecting the selected selective calling number, and the received data processing unit
In a wireless selective call receiver including a notification unit that performs a notification operation when a selective call number stored in an ID-ROM is detected, a first selective call number that can be changed is stored as the ID-ROM. An ID-ROM and a second ID-ROM in which the stored selective call number cannot be changed, and at least when the selective call signal is not stored in the first ID-ROM,
The reception data processing unit includes means for detecting the selective call number stored in the second ID-ROM.

Further, in the present invention, the reception data processing unit specifies an ID-ROM selection for designating which one of the first ID-ROM and the second ID-ROM stores the selective call number stored therein. A terminal can be provided.

In the present invention, the first ID-ROM is a read-only memory in which an individual selective call number different for each receiver is stored and which can be written only once or a read-only memory which can be electrically erased and rewritten. And the second
The ID-ROM is preferably a read-only memory in which a selective calling number for inspection is stored and which cannot be rewritten.

Further, in the present invention, it is preferable that the reception data processing unit includes a decoder and a CPU, and the second ID-ROM is provided in a partial area of a read-only memory included in the CPU.

[Action]

The first ID-ROM stores an individual selective calling number which is different for each receiver, and the second ID-ROM stores a selective calling number for inspection.

Therefore, before the individual selective call number is written in the first ID-ROM, the inspection can be performed using the selective call number for inspection stored in the second ID-ROM.
There is no need to replace or rewrite M,
It becomes possible to carry out the inspection easily.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the first embodiment of the present invention.

In the first embodiment, the wireless signal receiving unit 10, an ID-ROM storing the selective calling number, the data received by the wireless signal receiving unit 10 is processed, and the selective calling number stored in the ID-ROM is processed. Received data processing unit 20a for detection and received data processing unit 2
In a radio selective calling receiver having a notifying unit 40 that performs a notification operation when 0a detects the selective calling number stored in the ID-ROM, which is a feature of the present invention, the ID-ROM is A first ID-ROM 30 consisting of OTP or EEPROM as a first ID-ROM in which a different individual selective calling number is stored for each receiver, and a second ID-ROM in which a selective calling number for inspection is stored It includes a second ID-ROM 24a composed of a non-rewritable ROM.

Then, the reception data processing unit 20a includes the decoder 21 and the CPU 25.
a, the CPU 25a further includes a processing unit 22, a RAM 23, and
The second ID-ROM 24a including the ROM 24 is provided in a partial area of the ROM 24. The CPU 25a is formed as a one-chip IC.

The notification unit 40 also includes a liquid crystal display unit (LCD) 41, a diode display unit (LED) 42, and a speaker 43.

Next, the operation of the first embodiment will be described with reference to the flow chart shown in FIG.

When the power switch is turned on, the CPU 25a has the first ID-ROM 30
Is read (step S11), and it is checked whether it is unwritten (step S12). If the first ID-ROM 30 has not been written, the CPU 25a reads the contents of the second ID-ROM 24a which is previously written in the ROM 24 inside the CPU 25a (step S13). After that, the first I in the conventional selective call receiver
The same operation as when the contents of the second ID-ROM 24a is written in the D-ROM 30 is executed. If the first ID-ROM 30 is already written, the same operation as that of the conventional receiver is executed thereafter.

Whether or not the first ID-ROM 30 has been written can be determined by, for example, whether or not the checksum has a specific value (for example, “0”), or the value of a specific address in the first ID-ROM 30.

Referring to FIG. 1, the CPU 25a reads the first ID-ROM 30 or the second ID-ROM 24a according to the above-described flow, sets the read selective calling number in the decoder 21, and starts the receiving operation. The radio signal receiving unit 10 is controlled by the decoder 21 to intermittently perform the receiving operation. The decoder 21 performs processing such as bit synchronization, frame synchronization, and collation of the selective calling number on the reception data output from the radio signal receiving unit 10, and notifies the CPU 25a when the set selective calling number is detected.
When the decoder 25 notifies the CPU 25a that the selective calling number has been detected, the CPU 25a displays a reception message on the liquid crystal display unit 41, and notifies it by the diode display unit 42 and the speaker 43.

The operation of the first embodiment described above is the first or second ID.
Except for the operation of selecting and reading the ROM, the operation is exactly the same as that of the prior art selective call receiver.

FIG. 3 is a block diagram showing the second embodiment of the present invention.

The second embodiment is different from the first embodiment shown in FIG. 1 in that the received data processing unit 20 is a feature of the present invention.
a is a first ID-ROM 30 and a second ID-ROM 24a, ID to which a designation signal is inputted from the outside as an ID memory designating means for designating which one of the stored ID numbers is detected.
The ROM selection terminal 26 is added.

Next, the operation of the second embodiment will be described with reference to the flow chart shown in FIG.

When the power switch is turned on, the CPU 25a checks the ID-ROM selection terminal 26 (step S21), and reads the first ID-ROM 30 if the first ID-ROM 30 is selected (step S21).
22), it is checked whether it is unwritten (step S2)
3). If the first ID-ROM 30 has not been written, the CPU 25a
Second ID pre-written in ROM24 inside U25a
-Read the contents of ROM24a (step S24). Step S
In 21, if the second ID-ROM 24a is selected, the first ID
The read operation of the second ID-ROM 24a in step S24 is performed regardless of whether the ROM 30 has been written.

Thereafter, the first ID-ROM 30 in the conventional selective call receiver
The same operation as when the contents of the second ID-ROM 24a is written in is executed. The ID-ROM selection terminal 26 is checked (step S21), the first ID-ROM 30 is selected, and the first ID-ROM 30 is selected.
If the ID-ROM 30 has already been written, the same operation as the conventional receiver is executed thereafter.

The operation after reading the ID-ROM is the same as in the first embodiment.

In the second embodiment, for example, when the selective calling number for each receiver is written in the first ID-ROM 30 and then the inspection is performed again with the common selective calling number (inspection after repairing a failure, etc.) Is effective for.

〔The invention's effect〕

As described above, the present invention is a rewritable normal type.
In addition to the ID-ROM, it has a common inspection ID-ROM for all receivers, and after the receiver is manufactured, it operates with this inspection ID-ROM before the individual selective call number is written to each receiver. For,
There is an effect that labor can be saved and the test can be easily performed without changing the ID-ROM or rewriting it.

[Brief description of drawings]

FIG. 1 is a block diagram showing the first embodiment of the present invention. FIG. 2 is a flow chart showing the operation. FIG. 3 is a block diagram showing the second embodiment of the present invention. FIG. 4 is a flow chart showing the operation. FIG. 5 is a block diagram showing a conventional example. 10 ... Wireless signal receiving unit, 20, 20a ... Received data processing unit, 21 ... Decoder, 22 ... Processing unit, 23 ... RAM, 24 ...
… ROM, 24a …… Second ID-ROM, 25,25a …… CPU, 26 …… I
D-ROM selection terminal, 30 ... First ID-ROM, 40 ... Notification section, 4
1 …… Liquid crystal display (LCD), 42 …… Diode display (LE
D), 43 ... Speaker, S11-S13, S21-S24 ... Step.

Claims (2)

(57) [Claims] 1. A wireless signal receiving unit, an ID-ROM that stores a selective calling number, a data received by the wireless signal receiving unit, and the ID
-A radio including a reception data processing unit that detects a selective calling signal stored in ROM, and a notification unit that performs a notification operation when the reception data processing unit detects the selective calling number stored in the ID-ROM In the selective call receiver, the ID-ROM comprises a first ID-ROM that can change the stored selective call number and a second ID-ROM that cannot change the stored selective call number, At least when the selective calling signal is not stored in the first ID-ROM, the reception data processing unit is configured to operate the second ID.
-A radio selective calling receiver characterized by comprising means for detecting the selective calling number stored in the ROM. 2. The radio selective calling receiver according to claim 1, wherein the received data processing unit stores the selective calling number stored in either the first ID-ROM or the second ID-ROM. A radio selective calling receiver having an ID-ROM selection terminal for designating whether or not to detect.