JPH025635A - Selective calling receiver - Google Patents

Abstract

PURPOSE:To simplify the calling operation to a communicating partner when a call, etc., is performed to the partner in accordance with a message by automatically sending multi-frequency signals corresponding to the telephone number, etc., to a telephone circuit by only operating an input means in a message displaying state. CONSTITUTION:The message display controlling means 43 if a control circuit 4 decodes message codes in selective calling signals and supplies the message to a display 8 of a liquid display for displaying the message for a fixed period when a call occurs to its own equipment and, at the same time, causes a RAM 9 to store the message codes. This receiver is provided with a multifrequency (DTMF) switch 12 for inputting generation designation of DTMF signals and, when the switch 12 is operated while the display 8 displays the message, a DTMF signal generation control circuit 44 causes a DTMF signal generator 13 to generate DTMF signals corresponding to the displaying message (telephone number of communicating partner). The DTMF signals are supplied to a loudspeaker 7 from which the message is outputted through a drive circuit 6 for generating a ringing tone. Therefore, the DTMF signals outputted from the loudspeaker 7 are sent to the subscriber's line of a public telephone set as selecting signals.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a selective call receiver having a message display function.

(Prior Art) In recent years, as a new type of selective calling system, a system has been proposed that can notify a call by sound, light emission, etc., and can also transmit and display a message. In this type of system, for example, when a call request and a transmission message for an arbitrary selective call receiver are sent to a base station, the base station sends a message that encodes the individual number code of the selective call receiver and the transmission message. This selective calling signal is inserted into an empty calling word of the group to which the selective calling receiver belongs and is transmitted. Then, the selective call receiver receives the selective call signal, compares the individual number code with the individual number code of the own machine, and when the two codes match, it adds a ringing sound, light emission, etc. that a call has occurred. The message code is then decoded and displayed on, for example, a liquid crystal display and stored in a memory. If such a system is used, it is very convenient to be able to convey to the subscriber, for example, a contact telephone number, a code representing the contact address, etc. as a message.

By the way, the subscribers who received the message in this way,
Usually, a call is made to a contact from a nearby public telephone or the like, and a detailed message is sent to the contact. However, conventional selective calling receivers simply display the received message, so the subscriber can look at the contact telephone number displayed as a message on the display or the telephone number written in a notebook, etc. It is necessary to make a call to a contact, which is a cumbersome operation, and it is easy to make an erroneous call due to misreading the telephone number or erroneous operation.

In particular, the message display on a selective calling receiver generally disappears automatically after a certain period of time, so if you want to make a call without looking at the phone number displayed on the display, The displayed message may disappear during call operation. In such a case, the subscriber must either continue the call operation based on memory or - cancel the call operation, read the same message from memory and display it again on the display, and then restart the call operation. As a result, erroneous calls are particularly likely to occur, and the operability is also poor.

(Problem 8 to be solved by the invention) As described above, the conventional selective calling receiver only displays a message on the display, so when making a call etc. to a contact in response to this message, This device has problems in that it is troublesome to operate and is prone to erroneous operations.The present invention focuses on this point and aims to provide a selective calling receiver that can easily and accurately perform operations such as calling a contact. shall be.

[Structure of the Invention] (Means for Solving the Problems) The present invention receives a selective call signal composed of an individual number code and a message code transmitted from a base station,
A selective calling receiver that notifies that a call has occurred when the individual number code of its own machine is received, and also decodes a message code and displays it on a display, includes a multi-frequency signal generating means and a multi-frequency signal generating means. The multi-frequency signal generation control means includes an input means for inputting a generation instruction and a multi-frequency signal generation control means, and when the input means is operated while the message is being displayed, the multi-frequency signal generation control means generates the message being displayed. The multi-frequency signal generating means generates a multi-frequency signal corresponding to the number represented by or a number stored in advance corresponding to the content of the message.

(Function) As a result, when making a call to a contact in response to a message, a multi-frequency signal corresponding to the telephone number etc. is automatically transmitted to the telephone line simply by operating the manual means with the message displayed. This allows the subscriber to make calls easily and accurately without having to operate the dial on the telephone.

(Embodiment) FIG. 1 shows the configuration of a selective call receiver in an embodiment of the present invention. This selective call receiver first receives a selective call signal sent from a base station (not shown) via an antenna 1 in a radio circuit 2, converts the frequency, and then demodulates it in a demodulation circuit 3 and introduces it into a control circuit 4. There is. This control circuit 4 has, for example, a microcomputer as a main control section, and includes a code verification means 41 and a call notification control means 4.
2 and message display control means 43. Of these, the code matching means 41 matches the individual number code in the selective call signal introduced from the demodulation circuit 3 with the individual number code of the own machine, which is stored in advance in the ROM 5, and determines whether or not the two codes match. This is to determine the Call notification control means 4
2 supplies a sound signal to the speaker 7 via the drive circuit 6 to generate a squeal when the code matching means 41 determines that the received individual number code and the individual number code of the own machine match; This notifies the subscriber that a call has occurred. The message display control means 43 is
When a call is made to the own machine, the message code in the selective call signal is decoded, the message is supplied to a display 8 consisting of a liquid crystal display, and displayed for a certain period of time, and the message code is stored in the RAM 9. Further, when the display switch 11 is operated while waiting for a call, the message display control means 43 reads out the message code from the RAM 9, decodes it, and displays it on the display 8.

By the way, the selective call receiver of this embodiment uses DTMF (D
ual Tone Multiple Freque
a DTMF signal generator 13 that generates a signal D
It also has a DTMF switch 12 for inputting a TMF signal generation instruction, and further includes a DTMF switch 12 as a control means for the control circuit 4.
A TMF signal generation control means 44 is provided. This DTM
When the DTM F switch 12 is operated with a message displayed on the display 8, the F signal generation control means 44 outputs the message being displayed (contact telephone number).
The DTMF signal generator 13 generates a DTMF signal corresponding to
This DTMF signal is supplied to the speaker 7 via the sound generation drive circuit 6 and outputted.

Next, the operation of the selective calling receiver configured as above will be explained according to the control procedure of the control circuit 4.

In the call standby state, the control circuit 4 repeatedly monitors the occurrence of a call to its own machine and the operation of the display switch 11 in steps 2a and 2b, as shown in FIG. In this state, if it is determined that a call has occurred to the own machine as a result of matching the individual number code, the control shifts to call notification and message display control, and here the notification of the occurrence of a call and the display of the message are performed in accordance with a predetermined procedure. Let them do it.

On the other hand, when the subscriber operates the display switch 11 in the call standby state, the control circuit 4 moves to step 2C, where it accesses the RAM 9 and reads out the previously received and stored message code. After the message code is decoded, it is displayed on the display 8 in step 2d. If a plurality of message codes are stored in the RAM 9 at this time, a different message is selectively read out and displayed each time the display switch 11 is operated. After the message is displayed, the control circuit 4 monitors the operation of the DTMF switch 12 in step 2e and monitors the elapsed display time in step 2f. And D
When a predetermined period of time elapses without the TMF switch 12 being operated, the process moves to step 2g to erase the message displayed on the display 8 and return to the call standby state.

On the other hand, in order to make a call to the contact indicated by the message while the message is being displayed, the subscriber, for example, takes the public telephone off-hook and then places the speaker 7 of the selective call receiver opposite the transmitter. In this state, DTM
When the F switch 12 is operated, the control circuit 4 switches to step 2.
This is detected at step e, and the process then shifts to DTMF generation control.

That is, as shown in FIG. 3, first, in step 3a, it is determined whether the message being displayed is a symbol indirectly representing a contact address. For example, the messages are “1” and “2”.
'', the RAM 9 is accessed in step 3b and the contact phone numbers corresponding to the symbols "1" and "2" are selectively read out.
Move to c. - On the other hand, if the message displayed above is a phone number rather than a symbol, then proceed to step 3.
Move to c. In step 3c, the control circuit 4 selects one digit of the telephone number, and in step 3d, the DTMF signal generator 13 generates a DTMF signal corresponding to the selected digit. The sound is output from the speaker 7 for generating sound. Then, in step 3e, it is determined whether or not the generation of DTMF signals for all digits of the telephone number has been completed, and if the generation has not been completed, it is determined in step 3c.
Go back to select the next digit and select the DTMF corresponding to that number.
A signal is generated from the DTMF signal generator 1 and sent to the speaker 7.
output from. From then on, DT for all digits of the phone number
The above control is repeated until the generation of the MF signal is completed, and when the generation of the DTMF signal for all digits is completed, the system returns to the call standby state.

Thus, the DTMF signal output from the speaker 7 is sent as a selection signal to the subscriber line of the public telephone.
As a result, the telephone exchange establishes a connection between the public power supply machine and the telephone set to be contacted, and subsequent telephone calls are possible.

In this embodiment, the DTMF signal corresponding to the telephone number being displayed as a message can be output from the speaker 7, so that when making a call to a contact, the subscriber can output the message being displayed. It is no longer necessary to perform dialing operations on the telephone while looking at the telephone number, thereby eliminating the fear of misreading the telephone number or making an erroneous call due to an erroneous dialing operation. Further, since a call can be made simply by operating the DTMF switch 12 of the selective call receiver, a call can be made extremely easily and quickly.

Note that the present invention is not limited to the above embodiments. For example, in the above embodiment, a case has been described in which a DTMF signal is generated according to a telephone number in order to make a call.
Alternatively, after a call is made, a DTMF signal may be generated to transmit encrypted information, verification number information, etc. specified by a received message to a predetermined party via a telephone line. In addition, the present invention also relates to the configuration of the multifrequency signal generation means, the type of multifrequency signal, the configuration of the input means for inputting a multifrequency signal generation instruction, the control procedure and control content of the multifrequency signal generation control means, etc. Various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As detailed above, the present invention includes a multifrequency signal generation means, an input means for inputting a multifrequency signal generation instruction, and a multifrequency signal generation control means, When the input means is operated while a message is being displayed, the multi-frequency signal generation control means generates a multi-frequency signal corresponding to the number represented by the message being displayed or a number stored in advance corresponding to the content of this message. By generating the frequency signal from the multi-frequency signal generating means, it is possible to provide a selective call receiver that can easily and accurately perform call operations to contacts.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the configuration of a selective call receiver according to an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts showing the control procedure and control contents of the control circuit of the receiver. DESCRIPTION OF SYMBOLS 1... Antenna, 2... Radio circuit, 3... Demodulation circuit, 4... Control circuit, 41... Code verification means, 42
. . . Call notification control means, 43 . . . Message display control means, 44 . . DTMF signal generation control means, 5 . . .
・ROM for storing individual number codes, 6...drive circuit, 7
...Speaker, 8.Display device, 9.RAM for storing messages and telephone numbers corresponding to the messages. 11... Display switch, 12... DTMF switch, 13... DTMF signal generator. Applicant's agent Patent attorney Suzue Takehikomine 2 map

Claims (1)

[Claims] It receives a selective call signal consisting of an individual number code and a message code transmitted from the base station, and when the individual number code of its own machine is received, it notifies that a call has occurred, and also decodes the message code. A selective calling receiver that displays a message on a display device, comprising: a multi-frequency signal generating means; an input means for inputting an instruction to generate the multi-frequency signal; and when the input means is operated while the message is being displayed; and a multi-frequency signal generation control means for causing the multi-frequency signal generation means to generate a multi-frequency signal corresponding to a number represented by the message or a number stored in advance according to the contents of the message. Selective call receiver.