JPH10164204A - Hand-free adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand-free adaptor by which hand-free speech is made available even on the way of reading and storing the telephone number of a destination registered in advance in a portable telephone set. SOLUTION: A destination telephone number registered in advance in a portable telephone set 3 is read sequentially via a serial I/F section 23 and the read destination telephone number is sequentially stored in an internal RAM. On the way that the read destination telephone number is sequentially stored in the internal RAM, when a received call or a transmission call is made to the portable telephone set, read of the telephone number from the portable telephone set 3 is interrupted by a control section 21, then after reading of the telephone number from the portable telephone set 3 is interrupted, a hand-free speech is made available.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hands-free adapter device, and more particularly, to a hands-free adapter device capable of performing a hands-free call with a portable telephone mounted thereon without having the portable telephone.

[0002]

2. Description of the Related Art In recent years, portable telephones have become extremely widespread with the development of technologies for miniaturizing circuits and reducing power consumption. In addition, in order to use the mobile phone in a vehicle, the mobile phone is mounted on a hands-free adapter device to provide a safe environment when the vehicle is running. In the conventional hands-free adapter device, when a call is made to a mobile phone, an incoming call can be received by operating a receiver switch connected to the hands-free adapter device. It is possible to make a call using a microphone or a speaker, and as a result, there is an advantage that a safe incoming call operation can be performed even while the vehicle is running.

In the conventional hands-free adapter device, a telephone number registered in advance in a portable telephone is sequentially read out by the hands-free adapter device and stored in an internal memory of the device. The user operates the operation button to select one of the corresponding telephone numbers from the plurality of telephone numbers, and then presses the call button to call the telephone number and make a call. Furthermore, in the conventional hands-free adapter device, when sequentially reading telephone numbers registered in advance from a mobile phone and storing them in an internal memory in the hands-free adapter device, the communication speed is limited to 600 bps. Therefore, it generally requires a time of about 30 seconds, and the larger the number of registrations on the mobile phone side, the greater the readout time.

[0004]

However, in the conventional hands-free adapter device, it is not possible to accept the outgoing or incoming call during the reading operation. Or I had to make a call. For this reason, there has been a problem that the incoming call and the outgoing call operation from the other party's telephone cannot be performed for at least about 30 seconds. The present invention has been made in view of the above, and an object of the present invention is to provide a hand-held telephone capable of enabling a hands-free call even while reading and storing a telephone number of a destination registered in advance in a mobile phone. It is to provide a free adapter device.

[0005]

According to the first aspect of the present invention,
In order to solve the above-mentioned problem, in a hand-free adapter device which enables a hand-free call without a mobile phone by attaching a mobile phone, a telephone number of a destination registered in advance in the mobile phone is sequentially determined. Telephone number reading means to be read out, telephone number storage means for sequentially storing the read telephone numbers of the other party, and halfway of sequentially storing the read telephone numbers of the other party in the telephone number storage means A reading interruption means for interrupting the reading of the telephone number from the mobile phone when there is an incoming call or an outgoing call, and enabling the hands-free call after interrupting the reading of the telephone number from the mobile phone. The main point is that

In order to solve the above-mentioned problems, the invention according to claim 2 has signal input means for inputting an incoming signal from the portable telephone, and operation input means for inputting an operation for starting a telephone call. When an incoming signal is input via the signal input means, or when an operation for starting a telephone call is input via the operation input means, the read-out interrupting means causes a signal from the mobile phone to be read. The gist is to suspend reading of the telephone number.

In order to solve the above-mentioned problem, the invention according to claim 3 has signal input means for inputting a transmission signal from the portable telephone, and when the transmission signal is input via the signal input means. The gist of the invention is that the reading of the telephone number from the mobile phone is interrupted by the reading interrupting means.

[0008]

According to the first aspect of the present invention, the telephone numbers of the other party registered in advance in the portable telephone are sequentially read, and the read telephone numbers of the other party are sequentially stored. Here, if there is an incoming call or an outgoing call while the read out telephone numbers of the other party are sequentially stored, the reading of the telephone number from the mobile phone is interrupted. After interrupting the reading, a hands-free call can be enabled.

According to the second aspect of the present invention, when an incoming signal is input from a mobile phone, or when an operation for starting a call is input, a telephone number from the mobile phone is input. Since the reading of data is interrupted, hands-free communication can be performed.

Further, according to the present invention as set forth in claim 3,
When an outgoing signal is input from the mobile phone, the reading of the telephone number from the mobile phone is interrupted, so that a hands-free call can be made.

As a result, it is possible to make or receive a call without waiting for the end of the read operation, and it becomes impossible to perform a call or call operation from the other party's telephone for more than 30 seconds as in the prior art. Can be prevented. This allows for emergency calls,
This can contribute to the improvement of the use performance of the hands-free adapter device.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an overall configuration of a hands-free adapter device according to an embodiment of the present invention. It is assumed that the hands-free adapter device 1 is attached to the center console of the vehicle. FIG.
As shown in the overall configuration diagram of FIG. 1A, the mobile phone 3 is connected to the hands-free adapter device 1 via a signal cable 7. Further, as shown in a lateral cross-sectional view of the device shown in FIG. 1B, the mobile phone 3 is attached to a concave portion provided on the upper surface of the hands-free adapter device 1 and a holding plate 5a.
5d to detachably fixed. Further, when the mobile phone 3 is fixed in this manner, the hook SW9 provided at the center of the concave portion is pressed to detect the on-hook state.

The hands-free adapter device 1 is connected via a power cord 13 to an accessory position (ACC) of an ignition key, and is connected to a printed circuit board provided with electronic components. To supply. Also, the signal cable 7, the operation SW unit 11, the speaker 1
5 and a microphone 17 are connected. The speaker 15 is
For example, it is assumed that an audio front speaker attached to a door is shared. The microphone 17 is assumed to be attached to the front right pillar. Further, the operation switch unit 11 may be rotatably attached to the steering wheel.

Next, FIG. 2 is a diagram showing a block configuration of a hands-free adapter device according to an embodiment of the present invention. In FIG. 1, a hands-free adapter device 1 and a mobile phone 3 are connected to a signal cable 7 including a plurality of signal lines.
Connected through. The control unit 21 includes a CPU, an RO,
M, RAM and the like are internally provided, and the entire apparatus is controlled according to a control program and control data. Note that the control unit 21
When the hook SW 9 is in the off-hook state, that is, when the mobile phone 3 is in the hands of the operator, the control of the entire apparatus is stopped. At this time, the mobile phone 3 provides a function as a mobile phone according to an operation of only the operation buttons. In addition, the control unit 21
Operation information output from the operation SW unit 11 shown in FIG.

The serial I / F unit 23 exchanges various signals between the control unit 21 and the mobile phone 3. Note that the communication speed in serial communication is limited to 600 bps. The reset circuit 25 resets the control unit 21 by generating a reset signal using a transient phenomenon at the time of power-on. The oscillation circuit 27 oscillates a stable clock signal and supplies it to the control unit 21. The voice synthesizing unit 29 has a voice ROM for recording voice data corresponding to a plurality of characters therein, reads voice data from the voice ROM according to a voice data number given from the control unit 21, and performs D / A conversion. And synthesizes the synthesized voice signal, and outputs the synthesized voice signal from the speaker 15 via the amplifier 35 and the volume VR. The oscillating circuit 31 oscillates a stable clock signal and supplies it to the voice synthesizing unit 29.

The echo canceling unit 33 includes a speaker 15
This is to reduce the echo signal generated when the voice of the other party output from the telephone is reflected by various parts in the vehicle and becomes a voice signal again by the microphone 17, and cancels the reception signal component from the transmission signal. A well-known echo cancellation process is performed. The amplifier 35 switches the received signal output from the mobile phone 3 via the echo canceling unit 33 or the voice synthesized signal output from the voice synthesizing unit 29 according to the switching signal output from the control unit 21. , Amplifies one of the signals to a predetermined audio level, adjusts the output level with the volume VR, and outputs the signal from the speaker 15. The amplifier 37 amplifies the audio signal input via the microphone 17 to a predetermined audio level, and outputs the signal to the mobile phone 3 via the echo canceling unit 33 as a transmission signal. As described above, the power supply circuit 39 is connected to the accessory position of the ignition key via the power cord 13, and is supplied from the battery when the driver gets on the vehicle and sets the ignition key to the accessory position or later. The power supply is stabilized and dropped to a predetermined voltage and supplied to each unit in the apparatus.

Next, the operation of the hands-free adapter device 1 according to one embodiment of the present invention will be described with reference to the flowchart shown in FIG. This flowchart is stored in the internal ROM of the control unit 21 and sequentially processed by the control unit 21. Now, it is assumed that the driver gets into the vehicle and the mobile phone 3 is attached and fixed to the concave portion of the hands-free adapter device 1 as shown in FIG. Next, it is assumed that the mobile phone 3 is connected to the signal cable 7. In this state, since the hook SW9 is pushed and is in the on-hook state, the mobile phone 3
It can also be controlled from 1.

Next, it is assumed that the driver sets the ignition key to the position after the accessory position. In this case, power supply from the power supply circuit 39 to each unit in the device is started, a reset signal is supplied from the reset circuit 25 to the control unit 21 for a short period, and the control unit 21 starts operating.
First, in step S10, the control unit 21
Since the state 9 is read out and the on-hook state is detected, the mobile phone 3 is reset. That is, the control unit 21 gives the reset code to the serial I / F unit 23, and outputs the reset code on the operation signals 1 and 2 from the serial I / F unit 23 to reset the mobile phone 3.

Next, the control unit 21 controls the serial I / F unit 2
An upstream serial signal and a downstream serial signal are exchanged with the mobile phone 3 via the mobile phone 3 to determine whether or not the currently connected mobile phone 3 is a model compatible with the hands-free adapter device 1. The determination as to whether or not the mobile phone 3 is a model compatible with the hands-free adapter device 1 is a well-known control procedure, and a description thereof will be omitted. Also,
In the present embodiment, it is assumed that the mobile phone 3 is a model compatible with the hands-free adapter device 1. Next, the control unit 21 sets m = 0 as an initial value of the algebra m for loop processing used for memory read processing. The algebra m is a natural number that is processed so as to increase in accordance with the shortened number.

Next, in step S20, it is determined whether or not a call operation is currently being performed by the operator.
That is, when the call button provided on the mobile phone 3 for indicating the start of a call is directly operated, the mobile phone 3
The outgoing signal is added to the downstream serial signal output from the controller and input to the serial I / F unit 23.
Can determine whether a transmission signal has been output from the mobile phone 3 or not. If the calling operation is performed, step S6
On the other hand, if the calling operation has not been performed, the process proceeds to step S30.

Next, in step S30, the control section 21 determines whether or not an incoming signal is output from the mobile phone 3. That is, since the incoming signal is added to the downstream serial signal output from the mobile phone 3 and input to the serial I / F unit 23, the control unit 21 can determine whether or not the incoming signal is output from the mobile phone 3. . If the incoming signal has been output, the process proceeds to step S60. If the incoming signal has not been output, the process proceeds to step S40.

Next, in step S40, as a memory reading process, one telephone number of the other party corresponding to the abbreviated number registered in advance in the mobile phone 3 is read, and the abbreviated number is added to the internal RAM of the control unit 21. And memorize. More specifically, the control unit 21 sets the abbreviated number code = '00 'in the serial I / F unit 23, for example, as the abbreviated number code corresponding to the abbreviated number 0. From the serial I / F unit 23, a short number code "00" is added to the upstream serial signal.
And outputs the result to the mobile phone 3.

The portable telephone 3 receiving this reads out the telephone number of the other party corresponding to the abbreviated number code from the internal memory, and then adds this telephone number to the downstream serial signal to add the serial number to the serial I / F unit 23. Output to Next, the control unit 21 stores the telephone number input to the serial I / F unit 23 in the internal RAM. Here, the control unit 21 updates and sets the algebra m for loop processing as m = m + 1.

Next, at step S50, the control unit 21
Determines whether the memory reading process from the mobile phone 3 has been completed. That is, algebra m for loop processing
It is determined whether or not m = N + 1 with respect to the registration number N. It is assumed that the control unit 21 reads out the registration number N from the mobile phone 3 in advance. Here, when the memory reading process from the mobile phone 3 is completed, the process proceeds to step S60. On the other hand, if the memory reading process from the mobile phone 3 has not been completed, the process proceeds to step S20.

Next, in step S60, a call using the hands-free adapter device 1, that is, a normal hands-free call is performed. The hand-free call includes a call at the time of an incoming call and a call at the time of a call, and will be described below. First, as a process after the branch from step S20, a call procedure at the time of calling will be described. First, the control unit 2
In No. 1, the outgoing signal is output from the mobile phone 3, so that the memory reading process is interrupted. Next, a switching signal is output to the amplifier 35, and a signal from the echo canceling unit 33 is output to the speaker 15. Thus, the echo sound of the reception signal output from the mobile phone 3 is reduced by the echo canceling unit 33, and the amplifier 35 and the volume V
It is output from the speaker 15 via R. Since the calling operation has already been performed by specifying the telephone number of the other party from the operation buttons on the mobile phone 3 by the operator, a ringing tone output from the communication network is output to the speaker 15. Here, when the other party's operator notices the ringing tone and answers the call, a response uttered by the other party's operator is output from the speaker 15.

When the call is finished, after the end button indicating on-hook on the mobile phone 3 is pressed, the communication network is released, and the process proceeds to step S70. In this case, since the end signal is added to the downstream serial signal output from the mobile phone 3 and input to the serial I / F unit 23, the control unit 21 outputs a switching signal to the amplifier 35. Then, a signal from the voice synthesis unit 29 is output from the speaker 15. Further, since the control unit 21 does not give the voice number to the voice synthesis unit 29, the signal from the voice synthesis unit 29 is in a non-signal state.
5 is in a state where nothing is output.

In the above description of the operation, the case where the operation button on the mobile phone 3 is used has been described because the memory reading process was interrupted halfway.
When the memory reading process from the mobile phone 3 is completed, the telephone number registered in the mobile phone 3 is stored in the internal RAM in the control unit 21. Therefore, the operation SW unit 11 is used as a well-known hands-free function. Outgoing call.

Next, as a process after the branch from step S30, a call procedure at the time of an incoming call will be described. First, since the incoming signal is output from the mobile phone 3, the control unit 21 interrupts the memory reading process. Next, a switching signal is output to the amplifier 35, and a ringing tone output from the mobile phone 3 via the echo cancel unit 33 is output to the speaker 15. Next, the call button on the mobile phone 3 is pressed by the operator, and the echo sound of the received signal output from the mobile phone 3 is reduced by the echo canceling unit 33, and the received signal is output from the speaker 15 via the amplifier 35 and the volume VR. Is output.

When the call is ended, the communication network is released after the end button indicating on-hook on the mobile phone 3 is pressed, and the process proceeds to step S70. In the above description of the operation at the time of an incoming call in step S60, the operation when the call button on the mobile phone 3 is used has been described, but the operation SW unit 11 is used even during the memory reading process from the mobile phone 3. To perform an incoming call operation. More specifically, when an incoming signal is output from the mobile phone 3 via the serial I / F unit 23,
Interrupt the memory reading process. Next, a switching signal is output to the amplifier 35, and the ringing tone output from the mobile phone 3 via the echo canceling unit 33 is output to the speaker 1.
5 is output. When responding, the operator operates S
The TEL key of the W unit 11 is pressed, and the echo signal of the audio signal output from the mobile phone 3 is reduced by the echo cancel unit 33, output from the speaker 15 via the amplifier 35 and the volume VR, and the call is started. You. When the hands-free call is terminated, the operator presses the TEL key of the operation SW unit 11 again, and upon detecting this, the control unit 21 sends a termination signal to the mobile phone 3 via the serial I / F unit 23. Is output.

Next, in step S60, the control unit 21
Determines whether the memory reading process from the mobile phone 3 has been completed. That is, algebra m for loop processing
It is determined whether or not m = N + 1 with respect to the registration number N. If the memory read process from the mobile phone 3 has been completed, the process proceeds to step S6.
Go to 0. On the other hand, if the memory reading process from the mobile phone 3 has not been completed, the process proceeds to step S20. This is the end of the description of the flowchart illustrated in FIG.

As described above, the telephone numbers of the other party registered in advance in the mobile phone 3 are sequentially stored in the serial I / F section 23.
, And the read out telephone numbers of the other party are sequentially stored in the internal RAM. Here, when there is an incoming call or an outgoing call to the mobile phone 3 while the read out telephone numbers of the other party are sequentially stored in the internal RAM, the reading of the telephone number from the mobile phone 3 is performed by the control unit 21. Therefore, after the reading of the telephone number from the mobile phone 3 is interrupted, a hands-free call can be made.

When an incoming signal is input from the mobile phone 3 via the serial I / F unit 23, or when an operation for starting a call is input from the operation SW unit 11, the mobile phone Since the reading of the telephone number from 3 is interrupted by the control unit 21, a hands-free call can be made. Further, when a transmission signal is input from the mobile phone 3 via the serial I / F unit 23, the reading of the telephone number from the mobile phone 3 is interrupted by the control unit 21. Can be made possible.

As a result, it is possible to make or receive a call without waiting for the end of the memory reading process from the portable telephone 3, and to receive a call from the destination telephone for more than 30 seconds as in the prior art. It is possible to prevent the call operation from being disabled. For this reason, it is possible to cope with an emergency call, which can contribute to improving the use performance of the hands-free adapter device. Further, since a hands-free call can be made by a calling operation or a receiving operation using the mobile phone 3, even if the vehicle is started after the calling operation or the receiving operation, the call can be made without holding the mobile phone 3 in a hand. Can be continued.

[Brief description of the drawings]

FIG. 1A is an overall configuration diagram of a hands-free adapter device according to an embodiment of the present invention, and FIG. 1B is a lateral cross-sectional view of the device.

FIG. 2 is a diagram showing a block configuration of a hands-free adapter device according to one embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the hands-free adapter device 1 according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hand-free adapter device 3 Mobile telephone 11 Operation SW part 21 Control part 23 Serial I / F part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kenji Oishi, Nissan Motor Co., Ltd., 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture (72) Inventor Tetsuya Ito 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa, Nissan Motor Co., Ltd. 72) Inventor Hiroyoshi Koizumi Nissan Motor Co., Ltd., 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa

Claims (3)

[Claims] 1. A hand-free adapter device which enables a hand-free call without a mobile phone by mounting a mobile phone, wherein a telephone for sequentially reading out a telephone number of a destination registered in the mobile phone in advance is provided. Number reading means, telephone number storage means for sequentially storing the read telephone numbers of the called parties, and incoming call while the read telephone numbers of the called parties are sequentially stored in the telephone number storing means. Or, when there is an outgoing call, a reading interrupting means for interrupting the reading of the telephone number from the mobile phone is provided, and after the reading of the telephone number from the mobile phone is interrupted, the hands-free call is enabled. A hands-free adapter device, characterized in that: 2. Signal input means for inputting an incoming signal from the mobile phone; operation input means for inputting an operation for starting a call;
When an incoming signal is input via the signal input means, or when an operation for starting a telephone call is input via the operation input means, 2. The hands-free adapter device according to claim 1, wherein reading of the telephone number from the telephone is interrupted. 3. A signal input means for inputting an outgoing signal from the mobile phone, wherein when the outgoing signal is input via the signal input means, the telephone number from the mobile phone is read by the reading interrupting means. 3. The method according to claim 1, wherein reading of the data is interrupted.
A hands-free adapter device as described.