JPS62123840A - Radiotelephony equipment - Google Patents

Abstract

PURPOSE:To allow the user of a radiotelephony equipment to save a talking charge by allowing a talking unit to apply information display of elapsed time during talking or its relevant information. CONSTITUTION:When an automobile with a radiotelephony equipment mounted on enters the service zone of the public automobile telephone system, a detection output Qns of a data detection section 52 changes from a high to a low level. When the talking state is acquired a little later, a display data Di is sent from a control block 34 and display 45 representing the talking state is given. A detection output signal Qiu obtained from the data detection section 52 attended therewith changes from a low to a high level. Thus, an output signal Qu of an AND gate 54 changes from a low to a high level. Since an output signal Qa is fed to an enable terminal E of a counter 56, the counter 56 starts counting a clock pulse Pc and a count output signal Qc is fed to a data generating section 59. An output data Dx of a data generation section 59 is supplied to a display section 46 and a changing time in following to the content of the count output signal Qc represented by the data Dx is displayed.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Overall configuration of Example G-1 (Figure 1) G-2 Call status display operation (Figures 1 and 2) G-3 Modification H Effect of the invention A Industrial field of application The present invention is used in a mobile radio communication system, which is embodied as a so-called car telephone system. The present invention relates to a wireless telephone device suitable for.

B. Summary of the Invention The present invention includes a transmitting/receiving unit that performs communication with a predetermined radio station by transmitting and receiving audio signals, a microphone, and a speaker, and in connection therewith, transmits and receives audio signals obtained through the microphone. Performing a call operation that selectively supplies audio signals to the transmitting/receiving unit and supplying audio signals obtained from the transmitting/receiving unit to a speaker, and at least checking whether the transmitting/receiving unit is in a state in which it is unable to communicate with a predetermined radio station. A wireless telephone device comprising a talking unit having a circuit section from which a first information signal representing a call operation state and a second information signal indicating whether a call operation state is obtained, wherein the call unit is used for a call operation. The above-mentioned first and second
By providing a call status display operation section that displays information related to the elapsed time from the time when the call operation was started based on the information signal of the caller, the caller can
This allows information related to call time, such as call time or call charges, to be visually recognized.

C. Conventional technology A public mobile telephone system, which is a type of mobile radio communication system, is used to communicate between a vehicle equipped with a mobile radio telephone device and a regular telephone subscriber, or between vehicles equipped with a mobile radio telephone device. In such a case, the mobile radio telephone equipment installed in each automobile is connected to a predetermined radio station, as shown in FIG. 3, for example. Antenna 11 for communicating with the station. It is assumed that it consists of a transmitting/receiving unit 12 and a communication unit 13.

The transmitting/receiving unit 12 includes a transmitting/receiving unit 15 connected to the antenna 11, a receiving unit 16 and a transmitting unit 17 connected to the transmitting/receiving unit 15, and each of the receiving unit 16 and transmitting unit 17 has a control unit. A local oscillation signal from a local oscillation section 19 operating under the control of 18 is supplied. The control section 18 is read directly by the communication unit 13 through audio signal transmission lines 20 and 21 and a control data transmission lot 22.

Based on this configuration, when reception is performed by the transmitting/receiving unit 12, the received signal from the antenna 11 is supplied to the receiving section 16 via the transmitting/receiving section 15, and the receiving section 16 receives the signal from the local oscillator section 19. It is demodulated by supplying a predetermined local oscillation signal.

Then, the received audio signal Sr obtained from the receiving section 16 is
The signal is supplied to the call unit 1-13 via the control unit 18 and the audio signal transmission line 20. On the other hand, when the transmission/reception unit 12 performs transmission, the communication unit 13
The transmitted audio signal St is supplied to the transmitter 17 via the audio signal transmission line 21 and the controller 18, and is modulated in the transmitter 17 by supplying a predetermined local oscillation signal from the local oscillator 19. be done. Then, the modulated signal obtained from the receiving section 17 passes through the transmitting/receiving section 15 to the antenna 11.
and transmitted as a transmission signal.

Such reception and transmission are carried out to make a telephone call via the telephone communication unit 13. At this time, the control data transmission bus 22 is used between the control section 18 and the telephone communication unit 13.
Control data Dd is supplied and received through the control unit 18, and predetermined control by the control unit 18 and necessary control in the communication unit 13 are performed.

For example, as shown in FIG. 4, the communication unit 13 includes fixed speakers 31. a fixed microphone 32, and
There is provided a hand panel 33 which incorporates a speaker 33s and a microphone 33m and which has a number key switch 33k and can be freely switched on and off, and further includes a circuit section including a control block 34. In such a communication unit 13, control data Dd is supplied to and received from the control section 18 of the transmitting/receiving unit 12 via the control data transmission bus 22 via the control program 34.

At the time of reception, the control section 18 of the transmitting/receiving unit 12
The received audio signal S through the audio signal transmission line 20 from
r is supplied to the received audio signal path selection section 30. At this time, the selection control data Dr is supplied from the control block 34 to the received audio signal path selection unit 30, and based on this, the signal path to which the received audio signal Sr is to be sent is connected to the line 35. 36 and 37.

For example, when the received audio signal Sr is an alert sound signal for a call, line 35 is selected, and the alert sound signal is supplied to the fixed speaker 31 through the alert volume control section 38 to emit an alert sound. On the other hand, when the received audio signal Sr is a call audio signal, for example, the signal Sf supplied from the hook switch 39 to the IH wholesale block 34, which is turned on and off in response to the connection and disconnection of the handset 33, is When hook switch 39 is on, i.e. takes a high level indicating that handset 33 is hung, line 3
6 is selected, the call audio signal is supplied to the fixed speaker 31 through the call volume control unit 40, and the fixed speaker 31
The call voice is emitted from the handset 33, and the signal Sf indicates that the footer switch 39 is off, that is, the handset 33
When the line 37 assumes a low level indicating that it is disconnected, the line 37 is selected and the call audio signal is supplied to the handset 33, where the level is controlled and then supplied to the built-in speaker 333. , a call voice is emitted from the speaker 33s of the handset 33.

On the other hand, during transmission, when the handset 33 is in a hung state, the audio signal obtained through the fixed microphone 32 is transmitted through the microphone input control section 42 to the line 4.
1, and the microphone 33 of the handset 33 when the handset 33 is assumed to be disconnected.
The audio signal obtained via line 43 is supplied to a transmission audio signal path selection section 44 through line 43. At this time, the transmission audio signal path selection unit 44 is supplied with selection control data Dt from the control block 34, and based on it, the line 41 or 43 connected to its input side is selected. This selection means that the signal Sf supplied from the hook switch 39 to the control block 34 is
Line 41 is selected when Sf is on, i.e. takes a high level indicating that handset 33 is hung, and signal Sf is taken to indicate that hook switch 39 is off, i.e. When the handset 33 takes a low level indicating that it is disconnected,
It is assumed that line 43 is selected. In this way, the audio signal from the fixed microphone 32 obtained via the transmission audio signal path selection section 44 or the audio signal from the microphone 33m of the handset 33 is transmitted through the audio signal transmission line 21 as the transmission audio signal St. The signal is supplied to the control section 18 of the transmitting/receiving unit 12.

From the control block 34, based on the control data Dd supplied from the control section 18 of the transmitting/receiving unit 12 through the control data transmission bus 22, indicating data Di representing various states is obtained and supplied to the indicator section 45, In the indicator section 45, a display according to the contents of the indicating data Di is performed using, for example, a liquid crystal display element. Specifically, the indicating data Di indicates whether or not the area is outside the service area of the public mobile telephone system, that is, whether the transmitting/receiving unit 12 is in a state where it is not possible to communicate with a predetermined radio station.
o 5ERVICEJ data Dns, indicating whether it is within the service area of the public mobile phone system but outside the contract area r ROAM J data Dro, indicating whether a call is being made r++oRN-ALERTJ data Dha, call operation status rlN USEJ indicating whether or not
The indicator section 45 is assumed to have a plurality of display sections that operate according to each of these plural types of data, for example.

Further, when a number key switch 33k provided on the handset 33 is operated to perform dialing, a key date Dk is issued from the handset 33 and supplied to the control block 34. Then, control data Dd corresponding to the key data Dk from the handset 33 is obtained from the control block 34, and is supplied to the control section 18 of the transmitting/receiving unit 12 via the control data transmission bus 22. Display data Dp representing the content of the key data Dk is obtained and supplied to the display section 46,
At this point, the content of the display data Dp, that is, the dialed telephone number is displayed using, for example, a liquid crystal display element.

D. Problems to be Solved by the Invention As described above, calls made in a public automobile telephone system using a mobile radio telephone device consisting of an antenna, a transmitting/receiving unit, and a talking unit generally involve relatively high line usage charges. It will be carried out under the assumption that it is a thing. For this reason, most users of the system, that is, many callers, try to avoid redundant calls by making calls in a timely manner. It would be extremely convenient to be able to recognize the elapsed time during the call, that is, the call time, and it is therefore desirable to display the call time in relation to the call unit placed at the caller's hand.

However, as mentioned above, in the conventional mobile radio telephone device, the indicator section of the communication unit displays various statuses based on the indicating data, and the display section displays the dialed telephone number. However, the call time or information related to the call time is not displayed on the call unit, so the caller cannot visually recognize the call time or information related thereto.

In view of the above, the present invention includes a transmitting/receiving unit that transmits and receives audio signals to communicate with a predetermined wireless station, a microphone, and a speaker, and in connection with these, the audio signal obtained through the microphone is transmitted and received. A telephone unit that performs a telephone call operation that selectively supplies signals to the transmitter/receiver unit and audio signals obtained from the transmitter/receiver unit to a speaker; An object of the present invention is to provide a wireless telephone device in which the elapsed time or information related to the call time is displayed so that the caller can visually recognize the call time or the information related to the call time. .

E. Means for Solving the Problems In order to achieve the above-mentioned object, the wireless telephone device according to the present invention includes a transmitting/receiving unit that performs a voice signal transmitting/receiving operation to communicate with a predetermined wireless station, a microphone, and a speaker. a portable and removable handset and/or fixed microphone and fixed speaker;
and selectively supplying an audio signal obtained through a microphone built into the handset or a fixed microphone to the transmitting/receiving unit, and supplying an audio signal obtained from the transmitting/receiving unit to a speaker built in the handset or a fixed speaker. At least a first information signal indicating whether the transmitting/receiving unit is in a state in which it is unable to communicate with a predetermined wireless station, and a second information signal indicating whether or not the transmitting/receiving unit is in a state in which it is in a telephone conversation operation state. and a communication unit having a circuit section for obtaining
Furthermore, when a call operation is performed, a call status display operation unit is provided that displays a display related to the elapsed time from the time when the call operation is started based on the first and second information signals. It consists of

F Effect In the radio telephone device according to the present invention configured as described above, the call status display operation unit provided in the call unit displays the first and second information signals obtained by the circuit unit in the call unit. When detection is performed for each and a call operation is performed, the detection outputs of the first and second information signals obtained in the call status display operation section are respectively in a predetermined manner, for example, the first information signal. The detection output takes a high level, and the detection output of the second information signal takes a low level. Then, in the call status display operation section, the elapsed time during the period in which the detection outputs of the first and second information signals are respectively in a predetermined manner is directly displayed, or
Displayed after being converted or replaced with other information.

Therefore, the caller can visually recognize information related to the call time, such as call time or call charge, by simply looking at the call unit for each call, which is extremely convenient.

G Example G-1 Overall Configuration (FIG. 1) FIG. 1 shows the overall configuration of an example of a wireless telephone device according to the present invention. This example is a mobile radio telephone device installed in each car in the public automobile telephone system, and has parts configured similarly to the mobile radio telephone device shown in FIGS. 3 and 4. In addition, the mobile radio telephone device shown in FIGS. 3 and 4 has characteristic components that are not included. Therefore, the parts in FIG. 1 corresponding to those shown in FIGS. 3 and 4 are designated by the same reference numerals as in FIGS. 3 and 4, and their configurations and operations will be explained below. The detailed description will mainly be given to the above-mentioned characteristic components in FIG. 1, while omitting redundant explanations as much as possible.

The example shown in FIG. 1 also has a basic configuration consisting of an antenna 11°, a transmitting/receiving unit 12, and a talking unit 13'', similar to the mobile radio telephone device shown in FIGS. 3 and 4. The communication unit 13, which forms part of the basic configuration, includes a control block 34 and a display unit 46, which are not included in the communication unit 13 in the mobile radio telephone device shown in FIGS. 3 and 4. A connected call status display control section 51 is provided.

The call status display control section 51 includes a data detection section 52 connected to the control block 34 so that indicating data Di sent from the control block 34 to the indicator section 45 is supplied. This data detection unit 52 forms the indicating data Di supplied from the control block 34 and determines whether or not the transmitting/receiving unit 12 is outside the service area of the public mobile phone system, i.e., whether the transmitting/receiving unit 12 “NOS” indicates whether or not it is impossible to perform
EI? Detects VICEJ data Dns and rlN USEJ data Diu indicating whether or not the call is in operation, and r, N
o 5ERVICEJ data Dns takes different levels depending on whether it indicates that it is outside the service area of the public car telephone system or not rN
o A detection output signal Qns related to the SER ICEJ data Dns and a detection output signal related to the rrN USEJ data Diu that takes different levels depending on whether the rIN USEj data Diu indicates a call operation state or not. Qiu is generated. The detection output signal Qns from the data detection section 52 is passed through the inverter 53, and the detection output signal Qiu is directly passed through the inverter 53.
Each of the signals is supplied to an AND gate circuit 54, from which an output signal Qa is obtained.

Further, the call status display control section 51 is provided with a counter 56 that performs a counting operation by supplying the clock pulse Pc from the clock signal generation section 55 to the clock terminal CK. Output signal Qa of gate circuit 54 is supplied. The output signal Qa of the AND gate circuit 54 is also supplied to a monostable multi-by-break 57.
The multi-by-break 57 is an output signal that is triggered in response to a level change portion of the output signal Qa of the AND gate circuit 54, for example, a falling portion of the level, and maintains a predetermined level for a predetermined period from the time of triggering. Generate Qm. The output signal Qm of the monostable multi-by-break 57 and the output signal Qa of the AND gate circuit 54 are supplied to the OR gate circuit 58, and an output signal Qo is obtained from the OR gate circuit 58. This output signal Qo is sent to the counter 56. The counter 56 is cleared in response to the falling edge of the level of the output signal Qo.

The count output signal QC obtained from the counter 56 is supplied to the data generating section 59, and the data generating section 59 is connected to the terminal 6.
According to the control signal Sc supplied from 0, output data Dx corresponding to the count output signal Qc is generated. This output data Dx is, for example, time data representing the time corresponding to the count output signal Qc.

Furthermore, the call status display control section 51 includes a control block 3.
A data switching section 61 is provided between the sending end of the display data Dp from the control block 34 and the display section 46, and the display data Dp from the control block 34 and the data generating section 59 are connected to the data switching section 61. The output data Dx from Then, the data switching section 61
is controlled by the output signal Qo of the OR gate circuit 58, and selectively outputs the display data Dp from the control block 34 and the output data Dx from the data generator 59 to its output terminal according to the level of the output signal Qo. Take the state to be derived. The display data Dp from the control block 34 or the output data Dx from the data generation section 59, which is led out to the output end of the data switching section 61, is supplied to the display section 46, and a display according to the contents is displayed on the display section 46. It will be done.

G-2 Call status display operation (Fig. 1, Fig. 2) A car equipped with the wireless telephone device according to the present invention having such a configuration may enter the service area of the public mobile telephone system at a predetermined time. When entering the service area from outside, rNo 5ERVICE is sent from the control block 34 as indicating data Di.
The J data DnS changes from one indicating that the vehicle is outside the service area of the public automobile telephone system to another indicating that it is not, and the display indicating that the vehicle is outside the service area of the public automobile telephone system is no longer displayed on the indicator section 45. In addition, as a result, the detection output signal Qns obtained from the data detection section 52 of the call status display control section 51 is at a high level at the above-mentioned predetermined time point t0, for example, as shown in FIG. 2A. h to a low level β.

Next, if a call state is established at time t1 after time t0, then the control block 34 sends an rNo.
In addition to the 5ERVICEJ data DnS, the rlN[l5EJ data Diu, which indicates that the call is in operation, is sent.

As a result, the indicator section 45 displays a display indicating the call status.

In addition, as a result, the detection output signal Qiu obtained from the data detection section 52 changes at time t1 as shown in FIG. 2B.
rises from low level l to high level h at . Therefore, the AND gate circuit 54 receives the detection output signal Qns, which has been made high level h via the inverter 53, and the high level h
The detection output signal Qiu is supplied, and the output signal Qa is output at time t1 as shown in FIG. 2C.
rises from low level β to high level h at .

Since the output signal Qa of the AND gate circuit 54 takes a high level h, the counter 56 to which the output signal Qa is supplied to the enable terminal E, at time t1,
The operation of counting clock pulses Pc from the clock signal generator 55 is started.

Then, the count output signal Qc having contents that increase sequentially from the counter 56 is supplied to the data generation section 59, and the data generation section 59 outputs an output representing a time that changes in accordance with the contents of the count output signal Qc. Data Dx is obtained and supplied to the data switching section 61.

At this time, the output signal Qo of the OR gate circuit 58 to which the output signal Qa of the AND gate circuit 54, which takes a high level h, is supplied takes a high level h, as shown in FIG. In response to the output signal QO that takes
It is assumed that output data Dx is derived from . Therefore, the output data Dx from the data generation section 59 is supplied to the display section 46, and the display section 46 displays a time that changes in accordance with the content of the count output signal Qc represented by the output data Dx.

As a result, the display section 4G displays the elapsed time from the time point t when the call state was started, that is, the call time, and the caller can see the display section 46 even during the call. This allows you to visually recognize the call time.

Then, if the call state ends at time t2 after such a state continues, rIN USEJ data D
iu changes to something that does not represent the call status. As a result, the indicator section 45 no longer displays the call status.

In addition, in accordance with this, the detection output signal Qiu obtained from the data detection section 52 is changed at the time 1z as shown in FIG. 2B.
falls from high level h to low level l at . Therefore, the AND gate circuit 54 is supplied with the detection output signal Qiu of low level l, and its output signal Qa
As shown in FIG. 2C, the voltage drops from the high level h to the low level l at time t2.

The counter 56, to which the output signal Qa of the AND gate circuit 54, which has thus taken the low level l, is supplied to the enable terminal E counts the clock pulse Pc from the clock signal generator 55 at time t2. Stop operation. The count output signal Qc from the counter 56 maintains the content at time t2 after time t2, and the output data Dx representing the time obtained from the data generation section 59 also changes from time t2 onward to the count output signal Qc from the counter 56 at time t2. is maintained corresponding to the content of the count output signal QC from. Therefore, after time t2, the display section 46 displays the time from time t1 to time t2, that is, the total call time.

On the other hand, at this time, the output signal Qa of the AND gate circuit 54 is supplied to the monostable multi-by-break 57.
falls from high level h to low level l at time t2, the monostable multi-by-break 57 is triggered at time t2, and its output signal Qm changes from time t2 to subsequent levels as shown in the second diagram. It is assumed that the high level h is maintained until time t3. Therefore, the output signal Qo of the OR gate circuit 58 is
Even if the output signal Qa of No. 4 takes a low level β at time t2, it remains at a high level h until time t3, as shown in FIG. 2E. Therefore, the data switching section 61 controlled by the output signal Qo of the OR gate circuit 58 operates at the time t.
3, the output data Dx from the data generating section 59 is derived from the output terminal thereof, and the display of the total call time on the display section 46 continues until time t3.

Then, at time t3, when the output signal Qm of the monostable multi-by-break 57 falls from the high level h to the low level l, the counter 56 to which the output signal Qm is supplied to the clear terminal CL is cleared. As a result, the content of the count output signal Qc of the counter 56 is returned to zero, and accordingly, the content of the output data Dx from the data generating section 59 is also returned to zero. Further, since the output signal Qm of the monostable multi-by-break 57 takes a low level β, the output signal Qo of the OR gate circuit 58 takes a low level β, and accordingly, at time t3, the data switching unit 61 can derive display data Dp from the control block 34 at its output terminal in place of the output data Dx from the data generator 59.

In this way, at time t, the display unit 4
The display of the call time at step 6 is ended.

Therefore, the display of the call time on the display unit 46 shows the call time gradually increasing during the period in which the call is actually made, and
Even after the actual call state ends, the state representing the total call time will be maintained for a predetermined period,
The caller can check the call time not only during the call but also after the call.

In the display section 46, after the display of the call time is finished, the dialed telephone number is displayed in accordance with the display data Dp from the control block 34.

G-3 Modification In the above example, the output data Dx obtained from the data generator 59 to which the count output signal Qc of the counter 56 is supplied is time data representing the time corresponding to the count output signal QC. However, such data generation section 59
The output data Dx obtained from the output data Dx can be obtained by changing the contents of the control signal SC supplied from the terminal 60, and converting the time corresponding to the count output signal Qc into the amount of call charges, or converting the time corresponding to the count output signal Qc into a call charge. It may represent other information obtained by making certain substitutions for the corresponding times. In such a case, the display related to the call status on the display unit 46 does not directly represent the call time, but indirectly represents the amount converted into a call charge or other information. be done.

H Effects of the Invention As is clear from the above explanation, the wireless telephone device according to the present invention has a microphone and a speaker connected to a transmitting/receiving unit that transmits and receives audio signals and communicates with a predetermined wireless station. and a telephone call unit that performs a telephone call operation that selectively supplies an audio signal obtained through a microphone to the transmitting/receiving unit, and supplying an audio signal obtained from the transmitting/receiving unit to a speaker,
Each time a call is made, information related to the call time, such as the call time or the amount of the call time converted into a call charge, is displayed.
Furthermore, even after a call, just by looking at the call unit placed at hand, the call duration or related information can be visually recognized. Therefore, the radio telephone device according to the present invention is suitable as a mobile radio telephone device installed in a car in a car telephone system, and the caller can easily avoid redundant calls and save on call charges. It becomes something that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing an example of a radio telephone device according to the present invention, FIG. 2 is a waveform diagram used to explain the operation of the example shown in FIG. 1, and FIGS. 1 is a block diagram showing a mobile radiotelephone device; FIG. In the figure, 11 is the antenna, 12 is the transmitting/receiving unit, 13°
31 is a fixed speaker, 32 is a fixed microphone, 33 is a handset, 3 and 4 are control blocks, 46 is a display section, 51 is a call status display control section, 52 is a data detection section, 56 is a counter, and 59 is a The data generation section 61 is a data switching section. Figure 2: Waveform diagram of each part during testing. 12 Transmitting/receiving unit. Block diagram of mobile radio equipment. Figure 3. Figure 4.

Claims (1)

[Scope of Claims] A transmitting/receiving unit that performs the operation of transmitting and receiving audio signals to communicate with a predetermined wireless station; a handset and/or a fixed microphone and a fixed speaker that have a built-in microphone and a speaker and are detachable; and supplying the audio signal obtained through the microphone built in the handset or the fixed microphone to the transmitting/receiving unit, and supplying the audio signal obtained from the transmitting/receiving unit to the speaker built in the handset or the fixed speaker. a first information signal indicating whether or not the transmitting/receiving unit is in a state in which it is unable to communicate with the predetermined radio station; the second information signal;
and a telephone call unit provided with a call status display unit that displays a display related to the elapsed time since the start of the call operation based on the second information signal.