JPS639163Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an individual selective calling receiver, and more particularly to a message receiving type individual selective calling receiver that can confirm the contents of a call.

In recent years, advances in integrated circuit technology have been remarkable, and LSIs that can synthesize speech on a single chip have been developed. Along with advances in digital signal technology in wireless communications, this has made it possible to add not only an individual selective calling service but also a message information service to wireless individual selective calling receivers, and various compact and multifunctional receivers have been proposed. , for example, the special request of 1972.
An example of this can be seen in -140442 (Japanese Unexamined Patent Publication No. 56-65537). As receivers become more multi-functional, operability becomes a problem. In other words, an important issue is how to reset the transmission device such as the sound and vibration associated with the detection of the call signal, and how to set and reset one or more pieces of message information that have been received and stored, with a simple operation and without any erroneous operation. I'm getting old.

The purpose of the present invention is to focus on this point, to improve the complexity of operability due to multifunctionality, and to obtain a message receiving type radio individual selective call receiver that is easy to use and convenient.

According to the present invention, there is provided a radio receiving section that receives and demodulates a carrier wave modulated by a predetermined paging signal and a message signal sent subsequently, and when the paging signal demodulated by the radio receiving section is a desired signal. a first storage means for storing the demodulated message signal; a second storage means for storing one or more predetermined codes and information corresponding to the one or more codes; and the second storage means. a voice synthesizing means for voice-synthesizing the contents of the first storage means converted according to the above; a voice generating means for inputting the output of the voice synthesizing means and emitting a synthesized voice; In a radio selective calling receiver having a notification means for notifying that a paging signal has been received when There is obtained a radio selective calling receiver characterized in that means is provided for starting reading of the contents of the first storage means and stopping the operation of the notifying means in the same operation.

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

FIG. 1 is a block diagram showing the configuration of a voice display type wireless individual selective call receiver which is an embodiment of the present invention. In FIG. 1, 10 is an antenna, 11 is a radio receiving section, 12 is a decoding control circuit, 1
3 is programmable call-only memory (see P.
ROM), 14 is a memory circuit with two memory contents, 15 is P.ROM, 16 is a speech synthesis circuit,
17 and 18 represent buffers, 19 a speaker, 20 a vibrator, and 21 a push button device, respectively.

FIG. 2 is a diagram showing an example of the structure of the received signal used in the embodiment of FIG. An overview is shown, and the lower part shows that the message signal B consists of an information bit 26 and a check bit 27, and the former information bit 2
6 is divided into 5-bit regulation (), 5-bit regulation (), and 6-bit regulation (). Also, the test bit 27 consists of 15 bits. Note that the time length of each bit is, for example, about 2 milliseconds.

Furthermore, FIG. 3 is a diagram showing a specific example of the code structure of the three regulation information bits 26 in FIG. 2, and FIG. It is a figure showing an example.
If this key code in Figure 4 is used, the message information in Figure 3 will read "Wait at Tokyo Station at 4:00 PM." It should be noted that the synthesized voice of the message information needs only about 10 seconds. Also, in this example, the audio information from the speaker is emitted twice with an interval of 1 to 2 seconds for confirmation, and the two times are combined.
It is represented by SB or SX.

Figures 5 and 6 show two examples of time charts necessary to explain the operation of the receiver in Figure 1, and the operation in Figure 5 is mainly immediacy. , the operation shown in FIG. 6 is mainly concerned with confidentiality. The numbers shown in parentheses on the left indicate the reference numbers attached to the signals themselves or the circuits that emit the signals.

First, to explain the operation shown in FIG. 5 of the receiver having the configuration shown in FIG. The signal is received, demodulated by a radio reception unit 11 including a waveform shaping circuit (not shown), and guided to a decoding control circuit 12. This decoding control circuit will be explained in detail later, but in this case, the signal corresponding to section A in FIG.
The contents are compared with the contents of the ROM 13, and if they match, the process moves on to detecting the subsequent message signal B (FIG. 2). On the other hand, the received message information shown in FIG. The information corresponding to the received contents of this memory circuit is read out from another P.ROM 15 that stores and stores the plurality of codes shown in FIG. On the other hand, when the calling signal is detected, the vibrator buffer 17 is driven by the drive signal a. This point in time is indicated as t ₁ in FIGS. 5 and 6.

The voice synthesis circuit 16 converts the input information into a voice signal and drives the speaker 19 via another buffer 18 to emit synthesized voice SB, while the vibrator buffer 17 vibrates the vibrator 20 to generate the vibration sound V. Let the user know. When the user notices that information is being transmitted to him through the sounds of both parties and presses the pushbutton device 21 at time _t2 , the button side of the resistor R is temporarily grounded and an interrupt signal b is generated. As a result, the drive signal a of the decoding control circuit 12 is cut off, and the vibration sound V of the vibrator 20 is stopped. However, if the user does not press the push button device even after about 8 seconds have passed since the vibrator 20 started vibrating,
The vibrator 20 is adapted to stop automatically. In any case, once the vibrator 20 stops, the message information will be output as a voice synthesizer.
Only SB outputs continuously. Therefore, when the user notices that there is a call, he or she can immediately know the voice information.

Then, at time _t3 , when a certain period of time has elapsed, if the user wishes to check the previously stored information again, he or she can press the push button device 21. As a result, an interrupt signal b is issued to search for the area storing the previous message information, and that message information is called twice as the speech synthesis output SX. If you press the button again, the current message information will be called up twice in the same order, allowing you to reconfirm it.

Next, the operation of the receiver having the configuration shown in FIG. 1 as shown in FIG. 6 will be explained with reference to FIGS. 2, 3, and 4. This operation is suitable when you do not want other people to know the content of the synthesized voice information, when you need to refrain from emitting voice as much as possible, or when it is difficult to hear under noisy conditions. Simultaneously with the reception of the calling signal 25, the buffer 17 is driven by the drive signal a to notify that it has been received, and the vibrator 20 emits a vibration sound V from time _t11 . This vibration sound will stop after 8 seconds even if it is left alone, but if the user presses the push button device 21 at time _t12 before 8 seconds have elapsed, the vibration sound V will stop. However, in this case, unlike the case in FIG. 5, the synthesized speech SB has not yet been uttered. After a while, or when the user changes his/her location and there are no people around, or when there is no noise, the decoding control circuit 12 decodes the memory circuit 14 by pressing the pushbutton device 21 at time _t13 . The contents of the stored signals are stored in P.ROM1.
5 is read out and converted into synthesized speech by the speech synthesis circuit 16, and the speaker 19 is repeatedly driven twice via the buffer 18 to generate VB.

Further, after a certain period of time has elapsed, at time _t14 , if the user wishes to check the previously stored message information, he or she may press the push button device 21 in the same manner as in the case of FIG. If you press the button one more time, you can reconfirm the current information. As can be seen by comparing the operation in Fig. 6 with the operation in Fig. 5, the time point at which the synthesized voice SB is first uttered is at the 5th point.
The difference is that in the case shown in the figure, the time is _t1 , which is the same time as the vibration sound V, while in the case of Fig. 6, it is the time _t13 when the push button is pressed after the vibration sound V has stopped. However, either operation is possible with the configuration shown in FIG. 1 by partially changing the processing method of the central processing unit (not shown) provided in the decoding control circuit 12. Furthermore, when the pushbutton device 21 is pressed to generate an interrupt signal b when the vibrator 20 is not vibrating, the first memory searched is the memory that stores the previous message information in the case of the operation shown in FIG. On the other hand, in the case of the operation shown in Fig. 6, the difference is that the current message information is stored in the memory, but this can also be implemented with the configuration shown in Fig. 1 by appropriately selecting the memory flag. be. Note that the memories are selected alternately in the second and subsequent pushbutton presses, which is exactly the same in both cases.

Next, the decoding control circuit 12, which has been simplified in the above description, will be described in detail.

FIG. 7 is a block diagram showing the circuit configuration of the decoding control circuit in FIG. show. Although 14 is a random access memory (hereinafter referred to as RAM) corresponding to the external storage circuit in FIG. 1, it is placed within the decoding control circuit for convenience of drawing. In FIG. 7, a program memory 31 stores a sequence of instructions to be executed.
The contents of the address specified by the program counter 32 are passed to the instruction decode control section 33. The instruction decoding control section 33 decodes the passed information and issues control signals corresponding to the instruction to each section. The contents of the program counter 32 are stored in the program memory 31.
After the information is passed from to the instruction decoding control unit 33, it is normally incremented by "+1", but its contents are changed by a branch instruction or jump instruction, and the instructions are executed sequentially.

The arithmetic circuit 34 is a circuit that performs various operations such as arithmetic operations and logical operations.The RAM 14 is used for storing processing data, a program counter for subroutines and interrupts, and saving program status. Accumulate calculation results, RAM14, port 36~
It is used for exchanging data with 42. The data bus 43 is a signal line for exchanging data between each section. In addition, ports 37, 39, 40,
42 is a control circuit 12 that decodes the signal of the data bus 43.
It is an output port for supplying to an external circuit and has a latch function, and ports 36, 38, and 41
is an input port for transferring a signal from an external circuit of the decoding control circuit 12 to the data bus 43.

The interrupt control circuit 44 functions to deliver the external interrupt signal b to the data bus 43. Note that the push button device 21 may be considered as part of the interrupt control circuit, that is, part of the decoding control circuit.

Here, the internal operation of the decoding control circuit 12 will be explained for the case shown in FIG. When the demodulated output of the wireless receiving section 11 is guided to the data bus 43 via the input port 36, the input port 42, the output port 41
The desired call signal is written via P.
The content read from the ROM 13 is compared with the arithmetic circuit 34, and if a match is confirmed, the process moves on to receiving the message signal that is subsequently sent. At the same time, a call flag is set to indicate that a call signal has been detected in the RAM 14. is set to logic “H”.

When the message signal is decoded in this way, the decoded contents are transmitted via the data bus 43.
At the same time as writing to the RAM 14, the message memory flag is set to logic "H" and the vibrator 20 is caused to vibrate via the port 39 and buffer 17.
Also, through the ports 37 and 38, information corresponding to the contents of the message memory written in the RAM 14 is read out from the P.ROM 15, which stores information corresponding to a plurality of codes as shown in FIG. Speech synthesis circuit 1 via port 40
6 and the speaker 19 via the buffer 18.
The decoded content is converted into audio.

By the way, the vibrator 20 notifies you of a call.
The vibration automatically stops after about 8 seconds, but when the switch of the switch circuit 21 is pressed, the signal is input to the interrupt control circuit 44 via the signal interrupt line b. This interrupt control circuit informs the program counter 32 that an interrupt has occurred. At this time, the program counter 32 interrupts the current process and saves the currently specified address to the RAM 14. In this way, the interrupt contents are decoded by the instruction decoding control section 33 via the program memory 31. Then perform the following actions.

First, it is checked whether the call flag of the RAM 14 is logically "H", and if it is "H", the operation of the vibrator 21 is stopped and the call flag is cleared without waiting for eight seconds to pass. When the interrupt processing is completed in this way, the program counter 32 is
Processing starts from the address saved in the RAM 14.

Furthermore, when the second switch pulse is input as an interrupt signal in FIG. The interrupt instruction is executed via the section 33. The operation at this time is as follows.

First, it is checked whether the call flag of the RAM 14 is logic "H", and since it is logic "L", the message flag is checked this time, and if the flag is logic "H", the contents of the message memory are read out. By the way, in this embodiment, there are two message memories, and a flag corresponding to each memory is provided, and the memory is divided into one for storing the latest information and one for storing the previous information, and a new one is created. Each time a message is received, the memory that stores the previous information becomes the memory that stores the latest information, and the information is erased starting from the oldest information. The contents of the two memories are read out alternately each time the data is input. Therefore, in this case, since the previous message content was the latest information "B", this time the previous message information "BX"
(The explanation is given assuming that "BX" was received before "B" was received.) will be read out.

In the above description, two memories are used, but it goes without saying that the number of memories may be three.
In this case, the received message signals may be distributed to each memory by sequentially shifting them using a shift register. On the other hand, although having only one memory helps in simplifying the configuration, the effect is small. Furthermore, in the previous embodiment, the vibrator 20 was used as a transmission device to notify that a calling signal was received, but instead, the output of the buffer 17 may be input to the speaker 19, or the drive signal a may be input to the buffer 18. Good too. Alternatively, the information may be transmitted optically.

As described above, according to the present invention, the call can be confirmed by button operation immediately after receiving the call content, or by temporarily storing the call content and whenever necessary, so that the call content can be confirmed. You can know for sure. In addition, the contents of multiple calls can be checked sequentially with the same operation, and it can also be used as a switch to reset the transmission device that is activated when a call is received. This has a great effect on improving reliability, such as eliminating the complexity of communication.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a voice display type wireless individual selective calling receiver which is an embodiment of the present invention; FIG. 2 is a diagram showing an example of the configuration of a received signal used in the embodiment of FIG. 1; 3 is a diagram showing a specific example of the configuration of the information bits in FIG. 2, FIG. 4 is a diagram showing an example of a code including the information bits in FIG. 3, and FIGS. FIG. 7 is a diagram showing two examples of time charts used to explain the operation of the receiver shown in FIG. 1, and FIG. 7 is a block diagram showing the configuration of the decoding control circuit in FIG. Explanation of symbols: 11 is a radio receiving unit, 12 is a decoding control circuit, 13 is a P.ROM, 14 is a storage circuit, 15
is a P.ROM, 16 is a voice synthesis circuit, 17 and 18 are buffers, 19 is a speaker, 20 is a vibrator, 21 is a push button device, 31 is a program memory, 32 is a program counter, 33 is an instruction decoding control unit, and 34 is a an arithmetic circuit; 36 is an access circuit;
43 is a data bus, 44 is an interrupt control circuit, A is an individual selection call signal, B is a message signal, SB
is the current synthesized voice information, SX is the previous synthesized voice information, V is the vibration sound, a is the drive signal, and b is the interrupt signal.

Claims (1)

[Scope of utility model registration request] a radio receiving section that receives and demodulates a carrier wave modulated by a predetermined paging signal and a message signal sent subsequently; A first storage means for storing a message signal, a second storage means for storing one or more predetermined codes and information corresponding to the one or more codes, and conversion according to the second storage means. a voice synthesizing means for voice-synthesizing the contents of said first storage means; a voice generating means for inputting the output of said voice synthesizing means and emitting synthesized voice; In a radio selective calling receiver having a notification means for notifying that a signal has been received, and a stop means for causing the operation of the notification means to be stopped, the first storage means corresponding to the contents of the second storage means A radio selective calling receiver, characterized in that it is provided with means for starting reading the contents of the storage means and stopping the operation of the notifying means with the same operation.