JPS58168341A - Radio selective call receiver with display function - Google Patents

Abstract

PURPOSE:To confirm the reception of a call signal later even if only the call signal is received, by providing a means which generates a preliminarily determined display information signal when only a specific selective call signal is received, a display information signal storage means, and a means which displays stored contents of this means. CONSTITUTION:In a P-ROM9, plural its own call numbers are stored. When the signal from a waveform shaping circuit 7 and contents of the P-ROM9 coincide with each other, a decoder 8 stores display information signals following call signals together with distinctions of call signals in the order of reception. When the received signal is only a selective call signal, a signal aiming at displaying visually the absence of the information display signal is generated and is stored similarly. Stored contents of the decoder are displayed on a display 13.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a radio selective calling receiver with a display function (hereinafter referred to as a calling receiver with disclosure function) which, upon receiving a calling signal, stores the subsequent display information signal and uses a visual display such as an LCD to Although it is communicated to the user as visual information, it is not stored as one display information. Therefore, in a receiver equipped with a function to automatically stop the alarm, if the received signal is only a call signal and no display signal, there are situations in which the alarm is not transmitted to the user, and in this case, the alarm may not be transmitted to the user at a later time. The drawback was that there was no way to confirm that something had happened.

Therefore, an object of the present invention is to provide a radio selective calling receiver that can confirm the received call signal later even when only a calling signal is received.

The radio selective calling receiver according to the present invention includes means for generating a signal (for example, Tone 0nly) as a calling display information signal for visually indicating that there is no display information signal when only a calling signal is received. , comprising means for storing the paging display information signal, and means for visually displaying the stored paging display information signal.

With the above configuration, it is possible to confirm that only the calling signal has been received after the time when the calling signal is received.

Next, a detailed explanation will be given with reference to the drawings.

FIG. 1 shows an example of the structure of a received signal used in a receiver according to the present invention. In FIG. 1, 1 is a prefix signal;
2 is a frame synchronization signal, 3 is a calling signal, and 4 is a display information signal.

FIG. 2 is a block diagram of the configuration of an embodiment of the present invention.

In FIG. 2, a radio frequency signal from an antenna 5 is amplified, detected and demodulated by a radio section 6.

The demodulated signal is converted by a waveform shaping circuit 7 into a waveform that can be read by a decoder 8.

Decoder 8 has a programmable read-only memo JIP
- Compare the plural self-calling numbers pre-written in the ROM 9 with the signal from the waveform circuit 7, and if they match, the amplifier 1 is used to notify the caller.
0 to drive the speaker 11 by outputting sound signals corresponding to a plurality of self-calling numbers.

Also, the decoder 8 receives the display information signal 4 following the calling signal 3,
If the display information signal 4 is not present, a "signal for the purpose of visually indicating that the display information signal is not present" (for example, 'I'one 0nly', etc.) is sent to the decoder as a second display information signal. 81, etc., and the decoder 8 receives the call signals 4 and distinguishes among the plurality of own call signals (hereinafter, the own call signals will be referred to as two, A call and B call, to make it easier to understand) and the order in which the call signals 4 are received. Remember.

Historically, the decoder 8 has a plurality of storage portions for the groups.

Then, when the display information in the plurality of storage units becomes all the same, a new group is stored in the oldest group, and the order in which the call signals 4 were received in the groups that were included before it is made one older. . Then, the newly arrived group is displayed on the LCD.
It drives the controller/driver 12 and LCD 13 to provide visual information to the receiver. A reset switch 14 is connected to the decoder 8, and receives an instruction to stop the sound or visually display the plurality of memories in the group in order.

FIG. 6 is a diagram showing the configuration of FIG. 2 in detail, especially the decoder 8 part. The operation of the decoder 8 is shown in Figs. 1 and 5 below.
This will be explained using figures. The decoder 8 is a one-chip central processing unit CPU.

A series of operating instructions as a decoder is written in the program memory 21, and the contents of the address corresponding to the program counter 22 are output to the control section 23, and the control section 26 sends control signals to each section based on this contents. The program counter 22 usually increments by +1 each time the contents of the program memory 21 are sent to the control section 25, but it follows this when there is a jump command or the like. The interface between the external circuit and the data bus 24 is provided by a first output port 25, a first human power port 26. A second port 27° is carried out at a second manpower port 28. Furthermore, the data bus 24 is connected to the program counter 22 . Data memory 29.
It is also connected to an accumulator 60 and an ALU 61 to transfer data. Note that 32 is a timer, 63 is an oscillation section, and 34 is a crystal.

Detection of one's own calling number is performed by the following operation. The received signal from the waveform shaping circuit 7 is inputted to the data bus 24 through the first human power port 26, and is also input to the inhibit terminal of the decoder 8, causing an interrupt to the control unit 25 when the received signal goes low or low. When the instruction being executed is completed, processing for the interrupt is started. However, it is possible to disable interrupts using a command.

In FIG. 1, the prefix signal 1 is a repetition of "1" and φ.The prefix signal 1 causes the control unit 23 to be interrupted in the manner of 171.The timer 32 is connected to the crystal 36 and the oscillation unit 34, and output under the control of the controller 611 section 23, synchronized with the cycle of 9 interrupts, bit synchronized, and when one interrupt bit cycle ends, interrupts from the inhibit terminal are inhibited.Furthermore, the prefix signal 1 is "1". When the predetermined number of repeated bits of "φ" and "φ" are detected, the frame synchronization signal 2 is detected.The frame synchronization signal 2 is used to determine the timing of the next calling signal 6 and display information signal 4. It is.

A specific pattern is written in advance in the program memory 21 as a frame synchronization code, and this pattern is loaded into the accumulator 30 and then transferred to the data bus 21.
4 and stored in the data memory 29. Also P-R
The contents of AcallBcall are written in the OM9, and the data at the address addressed by the signal from the second output port 27 is also written in the data memory 29 through the second input port 28. .

Used to determine whether it matches the calling number signal.

What is the difference between the calling signal 3 and the display information signal 4?

Since both have the same length and number of bits, this is done using identification pits attached to the end of each.

For example, the identification pit is "φ" for the calling signal 3 and "1" for the display information signal 4. By means of this identification pit, a specific pattern, which is written in the program memory 21, is generated and stored in the data memory 29, whether it is merely the call signal 3 or the display information signal.

FIG. 4 is a flow chart showing an example of the information processing, particularly the operation of the decoder 8, in the receiver of FIG. 2 according to the present invention. First, the symbol M1Z shown in this Figure 4,
Msz, MDATAZ, MAD IJD will be explained in bullet points.

X is (1, 2...n) and is any number from 1 to n.

What is MH2 (M11M12 =・MHz−・Mln)
This is any storage unit from M2j to M27I.

M5. What is (M51 M52...-Msz...M
3n) is an arbitrary storage unit of Atte M3j to M5n.

What is M DATA Z (MnATA+ MDATA2
・-MDATAZ ---MDATA? t') and is an arbitrary storage unit of MDATA1 to MDATAn.

There are n groups including M12, M22, and MDATAZ as one group.

M DATA Z stores the display information signal 4 and the second display information signal described above (a signal for visually indicating that there is no display information signal).

Mlz stores "0" if there is display information in MDATA Z belonging to the same group and "1" otherwise.

M2. is a storage unit that distinguishes call numbers Acall and B call.
For Bcall, rBJ is stored as an example.

Msz stores the memory contents of MDATA x belonging to the same group in a first-come, first-served manner.

MAD is a memory location that stores the most recently received group.

The MID is a storage location that temporarily stores the distinction between Acall and Bcall before transferring it to M2g.

Next, an example of the operation of the decoder 8 will be described in more detail using the flowchart of FIG. 4, starting from the point where the frame synchronization signal 2 is detected and the next calling number 6 is determined. When you turn on the call receiver with display, do you read the contents of the MAD at the same time? Let it be L+1: (101). When the display receiver receives a call (102), Acall or Bc
A distinction is made between all (105).

Next, "1" is subtracted from the memory contents of MAD (1,06).

It is necessary to judge whether the memory content of MAD has become 10" (107), and if it is not rOJ, then the group with any X (MH
z M2Z M51 MDATAZ) is specified according to the memory contents of MAD109), and the memory contents of MAD are "
0”, set the MAD memory contents as r71J (108)
, the group with any X is Mln, M2? l, M3n,
MDATAn is specified (109).

Next, set the memory content of Mlz specified above to "1" 110), transfer the memory content of MID to the memory content of M2Z 111), and set the memory content of Mlz to "1" 112).
.

μDATA': Insert display information signal 4 into the memory contents of t (
113).

If there is no display information signal (114), the storage contents of MDATAZ are set to @TONE 0NLY' (115).

This also applies to calls that do not have the display information signal 4.

Can have display information.

Next, Mln, M2R, 11114%, MDA〒A%
Please specify the group of H6).

If 2 of the specified group matches the memory contents of MAD, then (1
17), the group with X smaller than 2 of the specified group is respecified (120). Also, if X of the specified group is MA
If it does not match the memory content of D117), check the memory content of MHz/(1ts),
For rOJ, respecify the group with X that is one smaller than the specified group (120), and for r I J (11
8) Add 1" to the memory contents of M5x (119), then respecify the group with X smaller than the specified group's X by one (120). Then, X of the specified group becomes 10". Until (117) (118) (119) (120)
Repeat the operation (121).

Next, a display timer is started that specifies the visible display time (122). 123), M2z.

M3Z and MDATAZ are visually displayed (124) and a ring tone is sent out (125). When the display timer expires (126), the visible display is erased and the ring tone is stopped (129), and the device returns to the state of waiting for reception ( 102). Furthermore, even if the display timer has not ended (
126), by pressing the reset button (12
7) The display timer ends 128), the visual display disappears, the ringing tone stops 129), and the device waits for reception again (102).

As described above, in the present invention, in the decoder 8 of the display-equipped call receiver, etc., by storing "TONE 0NLY" etc. in the program memory 21 even for the call signal 3 without the information signal 4, L equivalent to the memory of information signal 4
LCD 12 through CD control/driver 14
It can be displayed visually.

Next, the function of the reset switch 16 in FIG. 3 and when it is pressed will be explained. Reset switch 16
is the reset function and MDAT stored in decoder 4.
It also has the function of visually displaying MDATAZ M2z Msz from the group consisting of AZ, lvhg M2z Msz.

FIG. 5 shows a flowchart when the reset switch 13 is pressed to call up the visual information storage.The ringing tone stops (212) and waits until the reset switch 9 is pressed (201). If the ring tone is not being sent (202)
A display timer is started (203).

Specify a group with arbitrary X by the memory contents of MAD 204), and select
memory through the LCD control/driver 10.
The CD 8 is displayed visually (205). Then, it is determined whether the display timer has expired (206), and if it has, the visible display is erased (213), and the process waits until the 9-set switch 9 is pressed (201). If the reset switch 9 has not been terminated, that is, before the display timer expires (206), the reset switch 9 is pressed (207).

The display time is restarted (208), and if the currently specified X is n (209), z is respecified as "1" (214), and if the currently specified X is not n (209) Z is incremented by “1” and re-specified (2
10).

The memory contents of H12 of the group with the above redesignated X are “
1" (211), the contents of M2z Msz MDATAZ are visually displayed (205), and the process moves on to determining whether the display timer has expired (206). On the other hand, if the memory contents of M and Z of the group with the redesignated X are "0" (211
), X is again specified by the memory contents of MAD (204
), M2Z M5Z The contents of MDATAZ are visually displayed (205), and the process moves on to determining whether the display timer has expired (206).

According to the present invention described hereinafter, it is possible to improve the conventional drawbacks, and it is also possible to obtain the feature that it is possible to visually clearly identify whether or not the signal is only a calling signal.

Margin below

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a signal used in a receiver according to the present invention, FIG. 2 is a block diagram showing the configuration of a wireless selective calling receiver with a display function that is an embodiment of the present invention, and FIG. 4 is a diagram showing an example of a flowchart of information processing in the receiver of FIG. 2 according to the present invention, and FIG. 5 is a flowchart of a visible information storage and retrieval method. It is a figure showing an example. Explanation of symbols: 1 is prefix signal, 2 is frame synchronization signal, 6
is a calling signal, 4 is a display information signal, 5 is an antenna, 6 is a radio section, 7 is a waveform shaping circuit, 8 is a decoder, 9 is a P-ROM
, 10 is an amplifier, 11 is a speaker, and 12 is an LCD controller/driver. 13 is an LCD, 14 is a reset switch, 21 is a program memory, 22 is a program counter, 23 is a control unit, 24 is a data bus, 25 to 28 are output ports or input ports, 29 is a data memory, 30 is an accumulator, 31 is a ALU, 52 is tie, 7°66 is crystal,
Reference numeral 64 denotes each oscillation section. Procedural amendment (spontaneous) 27th May, 1939 Commissioner of the Japan Patent Office Shima 1) Haruki Tono1, Indication of the case 1988 Patent Application No. 50,7872, Radio selective calling receiver with title display function 3 , Relationship with the case of the person making the amendment Patent Applicant Address 66-1 Shiba 5-chome, Minato-ku, Tokyo Name (423) NEC Corporation Representative Tadahiro Sekimoto 4, Agent Address 105-5, Subject of amendment 1 ) Column 6 of Detailed Description of the Invention in the Specification, Contents of Amendment 1) On page 16 of the specification, line 6, "Ring tone transmission was interrupted..." was replaced with "Ring tone transmission was determined to be in progress.""..." I corrected myself.

Claims (1)

[Claims] 1. A radio selective calling receiver with a display function that receives an individual selective calling signal and a subsequent display information signal, and displays the contents of the display information signal. means for generating a predetermined display information signal when only at least a unique selective call signal is received;
means for storing display information signals from the means; and means for displaying the stored contents.