JPH03267826A - Selective radio call receiver - Google Patents

Abstract

PURPOSE:To always confirm an important incoming call by decoding a call number and caller information from a call number signal and an information signal included in a digital signal and storing the decoded result into a RAM. CONSTITUTION:This receiver is provided with a reception section 101 receiving and demodulating a digital radio signal and generating a base band digital signal, a ROM 6 storing its own call signal, an incoming informing instruction and a designation memory time in advance, a decoder section 102 decoding a call number and caller information from a call number signal and an information signal included in a digital signal, collating the call number with its own call number, sending an incoming notice signal to an informing section 103 when the result of collation shows coincidence and storing the caller information to a RAM 4 in a predetermined condition and the informing section 103 giving a notice with a predetermined means according to the incoming informing signal. Thus, when a weak ringing tone call mode and a unvoiced calling mode are set and no receiver is present in the visual field at all times, the content of the call is confirmed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a wireless selective calling receiver, and in particular, when calls to the same calling number (address) are received multiple times, the memory execution of the incoming call is The present invention relates to a wireless selective calling system and its receiver that can be controlled by the signal content of a wireless signal.

[Conventional technology]

A conventional radio selective calling receiver of this type will be explained with reference to the drawings.

FIG. 5 is a block diagram showing an example of a conventional wireless selective calling receiver, FIG. 6 is a diagram showing an example of a signal configuration in a conventional wireless selective calling receiver, and FIG. 7 is a block diagram showing an example of a conventional wireless selective calling receiver. It is a flowchart showing incoming call notification and memory operation.

First, the signal structure of a digital radio signal in a conventional radio selective calling system or a baseband digital signal demodulated by a radio selective calling receiver will be explained with reference to FIG.

The digital signal is “1” as detailed in bl.
A preamble signal for bit synchronization consisting of repetitions of and "0", a certain - synchronization signal (SC signal) consisting of, for example, 32 bits 1 IDI for paging individual radio selective calling receivers ~ID
It is constituted by a call number part signal IDb consisting of n.

This calling number part signal IDb further includes a flag bit at the beginning for each radio selective calling receiver to distinguish between the calling number part signal IDb and a message signal (not used in this example), An address that signals the calling number set on the calling receiver.
Bit, 0. It is divided into a function bit provided for specifying a tone pattern, and a check bit provided for performing a parity check generated by these signals.

Now, in FIG. 5, the radio selective calling receiver has antennas 1. A receiving section 101 configured by the radio section 2 and a decoder 53. A decoder section 502 composed of a RAM (random access memory) 4, a ROM (read-only memory) 6, and an LED (R photodiode) 8
．． Notifying unit 103, which is constituted by notifying means such as a vibrator 9 and a speaker 10, and a driver 7 that drives the notifying means. Power switch (5W power supply) 1.1. Function selector switch (select 5W) 12. It is composed of a power supply and the like (not shown).

In addition, select 5W12 has its switch position (SW
By selecting the position), the method for notifying an incoming call when the power source 5W11 is turned on, and whether the incoming call is stored in the RAM 4 or not is specified.

In FIG. 5, the signal is transmitted from a transmitting device (not shown) using the wireless selective calling method. That is, the transmitted digital radio signal is received by the air #iA1 in the receiving section 101, and is amplified and demodulated by the radio section 2 to generate a baseband digital signal. The generated digital signal is input to the decoder 53 in the decoder section 502, and a call number is generated from the address bits of the call number part signal IDb included in the digital signal. The decoder 53 checks whether the generated call number matches a self-call number stored in advance in the ROM 6. Decoder 5
3, if the checked calling number and the self-calling number match, it is assumed that there is an incoming call. The decoder 53 further determines whether or not this incoming call is a designated emergency call number.
The call number is compared with the designated emergency call number stored in advance in the OM6. Based on the above verification results, the decoder 53 follows the incoming call notification means specified by the 1 select 5W12 set by the user of the wireless selective calling receiver and the incoming call notification instructions stored in advance in the ROM 6. , outputs an incoming call notification signal to the notification section 103. Notification section 10
The driver 7 in the mobile phone 3 causes the LED 8 to emit light in a pattern according to the incoming call notification signal from the decoder 53, and also drives and sounds the vibrator 9 or speaker 10 to notify the carrier of the incoming call. .

This wireless selective calling receiver has its own calling numbers corresponding to each of a plurality of caller groups, and is capable of receiving calls to a plurality of calling numbers (addresses). Further, one caller group is made up of a plurality of callers. The RAM 4, which is a memory area within the decoder unit 502, can store incoming calls corresponding to the self-calling number. Memory execution of the call to RAM4 is performed by memory designation of select 5W12.

The person carrying the wireless selective calling receiver can later use this memory to confirm the contents of the caller information.

However, in this wireless selective calling receiver, even if the memory of the caller information is designated by the select 5W12, after the notification section 103 notifies the incoming call, the decoder 53
checks whether the same call is stored in RAM4, and if the same call is already stored in memory, all subsequent calls are canceled, and R is sent only if it is not stored in memory yet.
It was stored in AM4.

Further, even when the wireless selective calling receiver is on standby with the power source 5W11 turned off, only the decoder 53 is always operating. When the person carrying the wireless selective calling receiver turns on the power source 5W11, the receiver 101. R.O.
M6. The notification unit 103 starts operating, and a digital wireless signal,
In other words, it becomes ready to receive calls.

Next, the state of incoming call notification and memory operation in the conventional radio selective calling receiver will be explained with reference to the flowchart shown in FIG.

First, the decoder 53 in the decoder section 502 is powered by the power source 5W11.
If the power supply SWI 1 is in the OFF state, it waits for the power supply 5W11 to be turned ON by the operation of the person carrying the radio selective calling receiver (Step 702). If the power supply 5WII is already in the ON state, it is detected whether it changes from ON to OFF (step 703), and if it changes to OFF, all the memory contents of the RAM 4 are cleared (step 70).
4) Wait for it to turn ON again (step 702)
. Note that if the power source 5WII remains on and does not change, the process shifts to waiting for a call reception, that is, waiting for reception of a digital radio signal (step 705). Also (step 702), ON
If a change is detected, the process also moves to waiting for a call reception (step 705). Waiting for call reception (step 7o5)
If there is no call reception, it is detected whether the power supply 5W11 changes from ON to OFF (step 703), and if the ON state continues, the process returns to waiting for call reception (step 705) and is repeated.

When the decoder 53 is waiting to receive a call (step 7o5) and there is an incoming call, the decoder 53 first receives the call number part signal IDb.
decipher the call number. Next, in step 706, the decoder 53 verifies whether the decoded calling number is a designated emergency call number or not, and sends an incoming call notification signal to the notification unit according to the specifications of the ROM 6 and the select 5w12.
Send on 03. In the case of an emergency call designation whose calling number is pre-stored in the ROM 6, the notification unit 103 sounds at the maximum volume in the current SW position of the select 5W12 in accordance with the incoming call notification signal (step 707) L, no emergency call designation. In this case, the incoming call is notified by means instructed by the ROM 6 (step 708).

After the notification section 103 notifies the incoming call, the decoder 53 checks whether or not a memory is designated by the select 5W12 (step 709), and if no memory is designated, the decoder 53 waits for call reception (step 705). Transition. If memory is specified, check whether there is memory for the same call in RAM 4 (step 710) L, and if the newly received call is the same as a call already stored in memory, cancel all subsequent calls. Step 711) L, if not yet stored in RAM 4 (Step 712)
After completing (step 712), the decoder 53 detects whether the power supply 5WII changes from ON to OFF (step 712).
Step 703).

[Problem to be solved by the invention]

In the conventional wireless selective calling receiver described above, when calls to the same calling number (address) are received multiple times,
Regardless of whether the call is made by the same caller or by multiple callers, only the first reception is valid, and subsequent calls are not memorized and are all canceled.

Therefore, if someone other than the first caller sends a call to the same calling number as the first caller, or if the first caller sends a call to the same address again,
In order to store these information in the wireless selective calling receiver, the person carrying the wireless selective calling receiver must turn off the power switch and turn the power on again between the time the previous call was received and the time the current call is received. It is necessary to clear the memory of the previous call by either turning on the switch or forcibly clearing the memory contents.

Therefore, if the person carrying the wireless selective calling receiver does not clear the memory contents of the calls being received on the bow and has set the incoming call notification method to, for example, the weak ringing mode since the last time the call was received, If the phone is not attached to the front of the phone, or if it is not kept within the user's field of vision at all times when the silent ring mode is set, the phone may be ringed by multiple callers even if the phone user attempts to check the details later. Another disadvantage is that it is completely unknown that the same caller has made multiple calls.

[Means to solve the problem]

The wireless selective calling receiver of the present invention uses a digital wireless signal composed of a preamble signal, a synchronization signal, a calling number part signal including calling number information, and an information part signal including calling party information. receiving and demodulating the digital radio signal in a selective calling receiver;
a receiving unit that generates a baseband digital signal; a ROM in which a self-calling number 1 incoming call notification instruction and a specified memory time are stored in advance; and a receiving unit that generates a call from the calling number part signal and the information part signal included in the digital signal. The number and caller information are decoded, the calling number is compared with the self-calling number, and if the matching results match, an incoming call notification signal is sent to the notification unit, and under predetermined conditions. It has a decoder section that stores the caller information in a RAM, and a notification section that reports the caller information by a predetermined means in accordance with the incoming call notification signal.

〔Example〕

The present invention will be explained below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a radio selective calling receiver according to the present invention, FIG. 2 is a detailed block diagram of the decoder in FIG. 1, and FIG. 3 is a wireless selective calling receiver according to the present invention. FIG. 4 is a flowchart showing an incoming call notification and memory operation in the wireless selective calling receiver according to the present invention.

Now, the signal structure of the radio signal or baseband digital signal used in the present invention will be explained with reference to FIG.

In the digital signal a, a preamble signal SC signal,
The call number part signal IDa has the same signal configuration as the conventional digital signal shown in FIG. The present invention further uses a signal to which an information section signal INF containing caller information is added.

This information part signal INF includes a flag bit at the beginning for the radio selective calling receiver to distinguish between the information part signal INF and other messages, an information bit determined by the calling party information, and these bits. It consists of a check bit, which is a parity check bit generated by a signal. In the radio selective calling receiver, this information part signal I following the calling number part signal IDa
The contents of the NF are processed to identify whether the received call requires memory or not.

Caller information is information about the caller obtained by the signal processing device on the digital wireless signal transmission side, and is the caller number obtained by detecting and processing the unique number of the telephone line used by the caller. and so on. This calling party information enables the calling party to be identified.

In FIG. 1, this wireless selective calling receiver includes a decoder 3 in a decoder unit 102 that decodes a baseband digital signal a, and a decoder 3 in the same number as all callers scheduled to receive a call. Caller information (caller number)
A RAM 4 that can store each caller information, and a decoder 3
The elapsed time from the start of the memory is measured for each caller information stored in the RAM 4 according to instructions from the controller. It has a plurality of timers 5 prepared in the same number as the number of memories in the RAM 4. Further, the ROM 6 specifies the memory cancellation time for later arriving calls. The specified memory time is also stored. Receiving section 101
．． Notification section 103. The power source 5W11 and the selector 5W12 have substantially the same configuration and functions as the wireless selective calling receiver shown in the conventional embodiment shown in FIG.

Now, the digital radio signal received by antenna 1 is transmitted to radio section 2.
The signal is amplified and demodulated to generate a baseband digital signal a. The generated digital signal a is input to the decoder 3, where the calling number is decoded from the calling number part signal IDa and the calling party information is decoded from the information part signal INF.

The decoder 3 checks whether the calling number of the newly received call (later-arrived call) matches the self-calling number stored in advance in the ROM 6, and whether it is the calling number designated for an emergency call. . And the result of verification and select 5W1
Based on the designation of the SW position in step 2, the notification method is determined, such as whether the function that operates when notifying an incoming call is only light emission and vibration, or sound, or whether light emission, vibration, or sound is performed and memory is also performed. to judge. After determining the above, the decoder 3 sends an incoming call notification signal to the driver 7 in the notification section 103 necessary for performing incoming call notification in accordance with the instructions in the ROM 6. The driver 7 causes the LED 8 to emit light in a pattern according to the incoming call notification signal from the decoder 3, and also causes the vibrator 9 or the speaker 1 to emit light.
By driving and making a sound, the user of the wireless selective call receiver is notified of an incoming call.

The decoder 3 also determines whether or not memory is specified for the received call based on the selection 5W12, and if memory is specified, the caller information of the later incoming call is already F' (the outgoing call stored in AM4). If the decoder 3 confirms that the same calling party information as the later arriving call is already stored in the RAM 4,
Next, a judgment is made as to whether or not the subsequent call has arrived with an elapsed time equal to or longer than the specified memory time specified in advance by the ROM 6.
This determination is made based on the time measured by the timer 5 configured by a counter circuit or the like within the decoder section 502.

Time measurement by the timer 5 is started in response to an instruction from the decoder 3 when the first call is stored in the RAM 4. If the later call arrives within the specified memory time of ROM6,
The decoder 3 then cancels the memory of the caller information of the incoming call, and stores the caller information of the later incoming call in the RAM 4 if the specified memory time or more has elapsed.

Next, detailed operation of the decoder 3 will be described.

In FIG. 2, the decoding means 21 decodes the calling number and caller information contained in the digital signal a from the receiving section 10. The first checking means 22 checks the calling number decoded by the decoding means 21 and the own calling number stored in advance in the ROM 6. As a result of that verification,
If the calling numbers match, the notification signal sending means 23 sends an incoming call notification signal to the notification section 103 in accordance with the specifications of the ROM 6 and the select 5W12.

Further, when there is an instruction to store caller information by the selection 5W12, the first verification means 22 sends a verification signal to the second verification means 24 at the same time as sending out the incoming call notification signal,
The second collation means 24 collates the caller information of the first incoming call already stored in the RAM 4 with the newly decoded caller information of the later incoming call. As a result of the comparison, if the caller information of both parties does not match, the first memory instruction means 25 stores the information in the RAM 4.
The caller information for the next incoming call is stored in memory. As a result of the verification by the second verification means 24, when the caller information of both parties matches, the time comparison means 26 uses the specified memory time stored in advance in the ROM 6 and the first-arrival memory measured by the timer 5. Compare the elapsed time. As a result of the comparison, if the elapsed time from the memory of the first call exceeds the memory specified time in the ROM 6, the second memory instruction means 2
7 instructs the RAM 4 to store the caller information of the subsequent call.

The calling party information is stored in the RAM 4 in the order in which the memory instructions to the RAM 4 are generated. Since the latest caller information has the highest degree of importance, the latest caller information is read first.

Here, the designated memory time stored in the ROM 6 is 1 minute, 2 minutes, 4 minutes, 8 minutes, etc., and is set according to the actual usage situation of the person carrying the wireless selective call receiver.

Note that the caller information stored in RAM 4 is
By setting W12 to a predetermined position, the information is read out from the RAM 4 by the notification signal sending means 23. The notification signal sending means 23 uses a tone predetermined for each caller information, for example, so that the caller information can be identified.
The speaker 10 is made to sound according to the sound pattern, etc., and the RA
The caller information stored in M4 is announced.

Next, the state of call notification and memory operation in the radio selective calling receiver according to the present invention will be explained with reference to the flowchart shown in FIG.

First, the decoder 3 detects whether or not the power supply 5W11 is OFF (step 401.) L, the power supply 5W11 is OFF.
If it is in the F state, wait for it to change to ON (step 4).
02). If the power supply 5WII is already in the ON state, it is detected whether it changes from ON to OFF or not (step 403).
, if it turns OFF, all the memory contents of the RAM 4 are cleared (step 404), and the system waits for the power supply 5W11 to turn ON again (step 402). Note that if the power source 5W11 remains on and does not change, the decoder 3 shifts to waiting for call reception (step 405). Also, if it is detected in step 402 that it has turned ON, the process moves to wait for call reception (step 405).

The decoder 3 waits for a call reception (step 405). If there is no call reception, the decoder 3 detects whether the power supply 5WII changes from ON to OFF (step 403). If the ON state continues, the decoder 3 waits for a call reception again. The operation returning to (step 405) is repeated.

When a call is received during call reception waiting (step 405), the decoding means 21 first decodes the calling number from the calling number part signal IDa and the calling party information from the information part signal INF of the received digital signal a. do. Next (step 406), the first verification means 22 verifies whether the decoded calling number is a designated emergency call number stored in advance in the ROM 6, and notifies the incoming call based on the verification result. Sends a signal to the notification unit 103.9 If the verified call number is designated as an emergency call, the notification unit 103 outputs the maximum volume according to the incoming call notification signal, regardless of the current SW position of the Sereno SW12. to make a sound (step 407). If the verified call number does not specify an emergency call, the notification unit 103 sends R to each SW position of the select 5W12 in accordance with the incoming call notification signal.
The incoming call is notified (step 408) using the notifying means that is stored in advance and instructed in the OM6.

After the call notification, the decoder 3 selects 5W12 when receiving the call.
The mode shifts to a mode in which the presence or absence of memory designation set by is detected (step 409).

The decoder 3 detects whether memory is designated (step 40).
9) If the selection 5W12 does not specify memory in the mode to
The mode shifts to a mode in which it is detected whether or not the change occurs (step 403).

(Step 409), if it is determined that the caller information of the currently received call number is to be stored by specifying memory designation of select SW 1.2, the decoder 3 stores the caller information received this time. The second matching means 24 checks whether the calling party information matches the caller information received in the past (step 410). If the calling party information matches, the time comparing means 27 checks the corresponding calling party information. Read the measured time of timer 5 corresponding to (first-arriving call), and check whether the elapsed time from the memory start of the first-arriving call to RAM4 to the reception of the current second-arriving call exceeds the designated memory time specified in advance in ROM6. A comparison is made to see if it is true or not (step 411). If the time measured by the timer 5 exceeds the designated memory time, the second memory instruction means 27 stores the currently received caller information in the memory of the RAM 4 (step 412), and then resets the timer 5. Memory time measurement is started again (step 413). Thereafter, the decoder 3 shifts to a mode in which it detects whether the power supply 5W11 changes from ON to OFF (step 403).

In addition, in the time comparison by the time comparison means 26 (step 411), if the elapsed time from the memory of the first call to the RAM 4 to the reception of the second call is less than the specified memory time,
The second memory instruction means 27 cancels the memory of the caller information of the later incoming call (step 416) L, and the decoder 3 enters the mode to detect whether the power supply 5W11 changes from ON to OFF (step 403). Transition.

Note that (step 410), if the calling party information does not match the calling party information received in the past, the first memory instruction means 25 stores the calling party information received this time in the memory of the RAM 4 ( Step 414) and start the timers (step 414).
Step 415). After that, the power supply for decoder 3 is 5W.
11 changes from ON to OFF (step 403).

〔Effect of the invention〕

As explained above, the wireless selective calling receiver of the present invention can be used even when a call is made to the same calling number multiple times, when the caller is different, and after a predetermined period of time has elapsed. Even in the case of the same caller, the latest call can be stored in memory and read out for confirmation.
Even if a call arrives when the silent/low-tone calling mode is set, important incoming calls can be confirmed without being affected by the visual or auditory sense of the person carrying the phone, making communication between users of the wireless selective calling system easier. This has the effect of reducing incompleteness.

FIG. 1 is a block diagram showing an embodiment of the radio selective calling receiver of the present invention, FIG. 2 is a detailed block diagram of the decoder of FIG. 1, FIG. 3 is a signal configuration diagram in the present invention, and FIG. 4 is the incoming call notification and call notification in the wireless selective calling receiver of the present invention.
A flowchart showing the state of memory operation; FIG. 5 is a block diagram showing an embodiment of a conventional wireless selective call receiver;
FIG. 6 is a signal configuration diagram in the conventional embodiment, and FIG. 7 is a flowchart showing the state of incoming call notification and memory operation in the conventional embodiment.

1...Antenna, 2...Radio section, 3.53...Decoder, 4...=RAM, 5...Timer, 6=-R
OM, 7 driver, 8...LED, 9...vibrator, 10...speaker, 11...power SW, 12...
...Select SW, 101...Receiving section, 102, 50
2... Decoder section, 103... Notification section.

Claims (1)

[Claims] 1. Wireless selective calling using a digital radio signal composed of a preamble signal, a synchronization signal, a calling number section signal containing calling number information, and an information section signal containing calling party information. The receiver includes a receiving unit that receives and demodulates the digital radio signal and generates a baseband digital signal, a ROM in which a self-calling number, an incoming call notification instruction, and a designated memory time are stored in advance, and a ROM that receives and demodulates the digital radio signal and generates a baseband digital signal; decoding the calling number and calling party information from the included calling number part signal and the information part signal, and comparing the calling number and the self-calling number;
a decoder unit that sends an incoming call notification signal to the notification unit when the matching results match, and stores the calling party information in a RAM under predetermined conditions; 1. A radio selective calling receiver, comprising: a notifying unit that notifies the user by means of a radio selective calling receiver. 2. The predetermined condition is that when the wireless selective calling receiver is specifying the calling party information in memory, the calling party information of a newly received call has already been stored in the RAM.
or when the calling party information of the later arriving call does not match the calling party information of the earlier arriving call stored in the memory of the earlier arriving call, the memory of the earlier arriving call is stored in the RAM. 2. The wireless selective call receiver according to claim 1, wherein the elapsed time from the specified memory time exceeds the designated memory time. 3. The decoder section includes a decoding means for decoding the calling number and the calling party information included in the digital signal, and a first verification unit for matching the calling number with a self-calling number stored in advance in the ROM. means for sending out the incoming call notification signal to the notification unit if the calling numbers match as a result of the comparison; and the wireless selective calling receiver transmitting the caller information A RAM capable of storing each caller information when instructing the memory, a plurality of timers that start measuring elapsed memory time for each memory of the caller information to the RAM, and the RAM. a second matching means for comparing the caller information of the first call already stored in the memory with the newly received caller information of the second call; When it is determined that the caller information of the later-arrived call is not stored in the RAM, the first memory instruction means instructs the RAM to store the caller information of the later-arrived call, and the second collation means collates the information of the later-arrived caller. When it is determined that the calling party information of the call is stored in the RAM, time comparing means compares a designated memory time pre-stored in the ROM with a memory elapsed time of the first call determined by the timer; 2. A second memory instructing means for instructing the RAM to store caller information of the later incoming call when the memory elapsed time exceeds the memory designated time as a result of the comparison. and a wireless selective calling receiver according to claim 2.