JPH048688Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a tone dialer that converts telephone numbers and the like into acoustic signals.

[Prior art and its problems] Recently, with the spread of push-button telephones, various signal data such as telephone numbers are stored in memory in advance, desired data is recalled as needed, and this is converted into an acoustic signal. A tone dialer is being considered that converts the signal into a tone and sends it from the mouthpiece of the telephone.

By the way, it is important for this type of tone dialer to be small, lightweight, and highly portable, and for this reason, a small and relatively low capacity battery is used as a power source.

However, with conventional tone dialers, the volume level must be set to a high level in advance, as it is necessary to always output reliable data regardless of the state of the phone being used or the surrounding conditions at the time of use, which reduces power consumption. It's becoming quite big.
As a result, the batteries are subject to significant wasteful consumption, the battery life is shortened, and the batteries have to be replaced frequently, which is economically disadvantageous.

[Purpose of the invention] This invention was made in view of the above circumstances. By changing the audio input level of transmitted data according to the usage situation, it is possible to prevent unnecessary consumption of the battery and extend the life of the battery. The purpose of the present invention is to provide a tone dialer that can be used to create a tone dialer.

[Key points of the invention] The tone dialer according to this invention judges whether the dial data in the previous and current acoustic conversions are the same, and determines whether the dial data are the same and executes the current conversion within a predetermined time from the previous one. In this case, the configuration is such that the output level of the acoustic signal is increased.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to the drawings.

FIG. 1 shows the circuit configuration of the same embodiment. In the figure, 1 is a key input section, and this key input section 1 includes character keys 1a, numeric keypad 1b, and "DIAL".
It has a key 1c and the like.

Key inputs from the key input section 1 are given to the CPU 2. The CPU 2 writes various signal data given by key inputs from the key input unit 1 into the RAM 3, and reads necessary signal data from the RAM 3 by key inputs from the key input unit 1, and generates them as transmission data. This transmission data is then sent to the tone generator 4.

The tone generator 4 generates an acoustic signal for a telephone number, that is, according to each signal data constituting the transmission data.
It is designed to generate a DTMF signal, and this signal is applied to a speaker 6 via an amplifier 5.

In this case, the output level of the amplifier 5 is controlled by the audio output control section 7, and is normally set at the lowest level, and the level is increased under predetermined conditions. Amplifier 5 at this time
The determination of the level up is executed based on the state of a timer 8 connected to the CPU 2. In other words, timer 8 here is used in cases where the data is sent again after sending data to the telephone exchange and the other party is busy, and when the level of the transmitted data is too low and the data is not connected to the telephone exchange and the data is sent again. The time is set to identify the case where the data is sent and the time until the data is sent again.Here, it is set to the time when the data will be sent again in the latter case, for example, about 30 seconds. has been done. As a result, if timer 8 is on when retransmitting data, it is assumed that the level of the latter transmitted data is too low and data is being transmitted again, and the output level of amplifier 5 from the next time is forced to It becomes popular.

A display section 9 is connected to the CPU 2. This display section 9 displays data written and read according to instructions from the CPU 2.

Next, the operation of the embodiment configured as described above will be explained.

In this case, various signal data are written into the RAM 3 in advance by key operations on the key input section 1.

In this state, select the desired telephone number using the keys on the key input section 1, and then proceed to the steps shown in Figure 2.
In A1, when you operate "DIAL" key 1c,
The selected data is read from the RAM 3 to the CPU 2 and output to the tone generator 4 as transmission data. Then proceed to step A2.

In this step A2, it is determined whether the current transmission data is the same as the previous data. Since there is no previous data here, it is determined that they are not the same, and the process proceeds to step A3 with NO. Then,
The data given to the tone generator 4 is here converted into an acoustic signal and then given to the amplifier 5, but the output of the amplifier 5 remains set to the lowest level, and in this state, the output of the speaker 6 is output in step A4. from the mouthpiece of the telephone to the telephone exchange. Further, after this, the timer 8 is set to the on state in step A5.

From this state, if the other party is busy and the user wants to send the transmission data again, the "DIAL" key 1c is operated again on the key operation section 1 in step A1. Then, in this case as well, transmission data in a predetermined format is outputted and sent to the tone generator 4, as described above, and the process proceeds to step A2. Then, in step A2, it is again determined whether the current transmission data is the same as the previous data, but in this case, since they match, YES
Proceed to step A6.

In this step A6, the state of the timer 8 is determined. In this case, the other party is busy and data is to be sent again. During this time, sufficient time has elapsed and the timer 8 has been turned off and turned off, so the answer is NO and the process proceeds to step A3.

Therefore, in this case as well, the data given to the tone generator 4 is converted into an acoustic signal here and then given to the amplifier 5 as described above, but the output of the amplifier 5 remains set at the lowest level. ,
In this state, the signal is sent to the speaker 6 in step A4, and then sent to the telephone exchange through the mouthpiece of the telephone. Further, after this, the timer 8 is set to the on state in step A5.

On the other hand, if the audio output level of the transmitted data is too low to connect to the telephone exchange and the data is to be transmitted again, the "DIAL" key 1c is operated again on the key operation unit 1 in step A1.
Then, as described above, transmission data in a predetermined format is output and sent to the tone generator 4, and the process proceeds to step A2. Then, in step A2, it is again determined whether the current transmission data is the same as the previous data, but in this case, since they match, YES is determined and the process proceeds to step A6.

Then, in step A6, the state of the timer 8 is determined. In this case, the level of the transmitted data was too low to connect to the telephone exchange, and the data was sent again.The time during this time was short, and timer 8 was not released from the on state. Since the status remains the same, select YES and proceed to step A7. Then, in step A7, the amplifier 5 is activated by the control signal from the acoustic output control section 7.
The output level will be increased. As a result, the data given to the tone generator 4 is given to the amplifier 5 where the amplification factor is increased after the acoustic signal is converted, and the process proceeds to step A4, where the speaker 6 outputs
It's sent out into the phone's mouthpiece at a louder volume than before.

Therefore, in normal use, such as when transmitting data for the first time or retransmitting data when the other party is busy, the output level of the amplifier remains set at the lowest level.
When the level of the transmitted data is too low to connect to the telephone exchange and the data is retransmitted, the output level of the amplifier is turned up and the data is output, especially in normal use. Power consumption can be minimized while keeping the output level set low, thereby preventing unnecessary battery consumption. This means that even if a small battery with a relatively low capacity is used, the battery life can be extended as much as possible, and the number of battery replacements can be reduced accordingly, which is economically advantageous.

In addition, even if the level of the transmitted data is too low to connect to the telephone exchange and the data needs to be retransmitted, the data can be output with the output level of the amplifier turned up, so that the data is always stable. Transmission data can also be output.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with appropriate modifications within the scope of the invention. For example, in the above embodiment, the output level of the amplifier 5 is changed by determining the state of the timer 8, but the output level of the amplifier 5 may also be set by key operations on the key operation unit 1. .

[Effects of the invention] According to this invention, the output level for the first sound conversion can be set low, and the output level can be increased when re-dialing the same dial data, thereby preventing wasteful battery consumption. At the same time, it is possible to extend the life of the battery, and it is also economically advantageous.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the circuit configuration of an embodiment of this invention, and FIG. 2 is a flowchart for explaining the operation of the embodiment. 1...Key operation section, 1c..."DIAL" key,
2...CPU, 3...RAM, 4...Tone generator, 5...Amplifier, 6...Speaker, 7...Sound output control section, 8...Timer.

Claims (1)

[Scope of Utility Model Registration Claim] A tone dialer that converts dial data into an acoustic signal and outputs it to a push-button telephone line, which includes a specific key that instructs the conversion of set dial data to an acoustic signal, and a determining means for determining whether dial data to be converted into an acoustic signal in response to an instruction of a specific key is the same as dial data in a previous conversion; a detection means for detecting that the dial data has been made within the same period; and the determination means determines whether the dial data is the same;
and a control means for increasing the output level of the converted acoustic signal when the detection means detects that a specific key has been operated within a predetermined time since the previous operation. .