JPH05110662A - Automatic answering telephone set - Google Patents

Abstract

PURPOSE:To reduce number of digits of a registration dial by changing a dial speed only when a reply of an opposite party is discriminated in the transfer state with respect to the dial speed at usual dialing so as to execute simply and surely the speech technical standards. CONSTITUTION:A pocket bell telephone number D1 and display information D2 are registered in a memory S-RAM as an abbreviation dial number and a control circuit 29 implements the following various operations. A DC closing circuit 3 is operated through a dial circuit 7 at the transfer to close the line and to detect the polarity of a telephone line 1 and it is stored. Then an abbreviation dial number of a transfer destination is read from the memory S-RAM, an identification code is discriminated and the number D1 is sent at a dial speed V1. Then the reply of the opposite party is detected by the polarity inversion of the line 1 and when it is discriminated to be the transfer operation, the information D2 is sent at a dial speed V2 different from the speed V1. Thus, the speech technical standards are executed simply and surely and the registration dial digit number is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an answering machine, and more particularly to a dial sending cycle in a transfer operation by an answering machine.

[0002]

2. Description of the Related Art When a message is recorded while an answering machine is in the absence, an answering machine calls a display pager station to promptly inform the user of the message of the message, and then a PB signal is sent. The called user sends a data to be displayed by, and the called user makes a so-called transfer operation of calling the answering machine and listening to the recorded message by remote control operation.

[0003]

The problem here is that when the data is specified by the PB dial after the telephone is connected to the display / pager station, the same dial signal transmission cycle as the normal one-touch dial or speed dial is used. Then, there is a problem that it becomes impossible to satisfy the unnecessary transmission level of the technical standard conforming condition that defines the technical standard of communication. In order to satisfy this, the dial data to be registered had to be changed as shown in FIG. Here, D1 is the telephone number information of the display pager, P is the pause signal of the dial, and this is 1
In this case, the dial signal is temporarily stopped for about 4 seconds. D2 is display information composed of D21, D22 ... D2J. When this is sent as a dial signal, D1 is sent first, and then the dial signal D1 is sent.
Is changed to a PB signal and the dial is paused for 4 times n times. After that, the display information D2 is sent out as a dial signal one digit every four seconds. For this reason, the number of digits to be registered in the dial signal is increased, and in the case of the same number as the transmission of the contact dial signal, there is an inconvenience that the dial time becomes long.

The present invention provides an answering machine which can easily and surely meet the technical standard of a telephone call and can make a reliable call even if the number of digits of a dial signal to be registered is small. Is.

[0005]

In order to achieve this object, an answering machine according to the present invention comprises a line closing means for closing and opening a telephone line, a dial means, a partner response judging means, A first dial sending cycle when the telephone line is closed by the line closing means and a dial signal is sent by the dial means, and a control means for controlling those means, and the other party. The second dial transmission cycle when the dial signal is transmitted by the dial means is configured to be different when the response determination means determines that the other party's response has been received.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention, in which 1 is a connection terminal (L1 / L2) of a telephone line, and 2 is for keeping the power polarity inside the telephone constant even if the polarity of the telephone line changes. Diode bridge, 3 is a line control circuit for closing and opening the line, 4 is a communication circuit, 5 is a handset, 6 is a transmitter, 7
Is a dial circuit, 8 is a power source for the dial circuit 7, 9 is a keyboard, 10 is information from the keyboard 10 and is used by the dial circuit 7.
And a keyboard interface circuit (KB-I / F) to be transmitted to the control circuit 29, 11 is a hook switch, 12 is a DC separating capacitor, 13 is a diode bridge for rectifying a ringing signal given from the central office at 16 Hz AC, 14 Is a tone ringer circuit that operates with the output of the diode bridge 13, 15 is a ringing signal detection circuit (IR detection circuit) that operates with the output of the tone ringer circuit 14, 16 is a polarity detection circuit that detects the power supply polarity of the telephone line 1, and 17 is recording Reproducing circuit (R / P circuit), 18 is a speaker amplifier (S
P amplifier), 19 is a speaker, 20 is a microphone, 2
1 is a cassette deck, 22 is a zero-cross circuit which outputs an output each time an input signal passes a predetermined level, 23 is a PB receiver (PBREC) which detects the PB signal from the recording / reproducing circuit 17, and 24 is a voice synthesizer. , 25 is a D-RAM which is a memory for storing the data of the voice synthesizer 24, 2
6 is a fixed message recorded by IC, 27 is a reset circuit, 28 is an LED display controlled by a control circuit 29, 2
Reference numeral 9 denotes a control circuit, which is composed of a CPU which obtains the output from the zero-cross circuit 22 and judges the period to discriminate the type of signal, and controls the overall operation of the answering machine according to the type of the signal. , Line closing, opening, dial control, recording / playback, etc. Reference numeral 30 is an external power source, and 31 is a power source for stabilizing the power source of 12V, 5V or the like required for operation from the external power source 30.

Next, the operation of this will be described. Control circuit 29
The CPU has a non-volatile storage element (ROM) in which a control program and the like are stored, and a volatile storage element (S-RAM) that operates with low current consumption. External power supply 30
The power source 31 operates the power source 31 to supply power to each circuit to start the operation. When the power is turned on, the control circuit 27 is reset and started by the operation of the reset circuit 27,
Control is started by an internal program.

First, the operation of recording a response message as an answering machine is described as follows: [Recording input on keyboard 9 (not shown)
→ keyboard interface 10 → control circuit 29], the control circuit 27 makes a judgment and starts the recording operation. The message is stored in the route of [microphone 20 → recording / reproducing circuit 17 → voice synthesizer 24 → storage element D-RAM]. When a ringing signal from the telephone station is input to the telephone line 1, a ringing tone is heard through the route of [capacitor 12 → diode bridge 13 → tone ringer 14 → speaker amplifier 18 → speaker]. Further, the output of the tone ringer 14 is detected by the incoming call detection circuit 15, and the control circuit 27 determines it and determines the incoming of the telephone line. If the automatic answer is set by the answer switch of the keyboard, the control circuit 27 closes the telephone line 1 by the route of [dial circuit 7 → line control circuit 3]. The DC loop for the central office is [telephone line 1 → diode bridge 2 → line control circuit 3
→ It is formed by the route of the communication circuit 4].

The response message to the person making the call (caller) is converted from the data stored in the D-RAM 25 into a voice by the voice synthesizer 24, and the voice is recorded / played circuit 17 → dial circuit 7 → It is output to the telephone line 1 through the communication circuit 4 → line control circuit 3 → diode bridge 2]. The message (message) of the person who made the call (caller) is recorded on the cassette deck 21 by the route of [telephone line 1 → diode bridge 2 → line control circuit 3 → recording / reproducing circuit 17].

The message being recorded is the zero-cross circuit 22.
Are being monitored by. The operation of the zero-cross circuit 22 determines whether or not the output signal from the recording / reproducing circuit 17 has an input level of 0 V DC or more, and when there is a signal, gives an output to the control circuit 29.

The control circuit 29 determines the cycle and regularity of this signal. The signal has a frequency of 400, such as a busy tone.
For Hz, first turn on for 1.25 msec and then 1.25
It is determined to be OFF for msec and recognized as 400 Hz. Since the busy tone is 1 sec interval, the signal holding time of 400 Hz is monitored, and if the presence / absence of 400 Hz every 0.5 seconds is detected, it is determined to be the busy tone. On the other hand, since a signal such as voice has no regularity, the output of the zero cross circuit 22 becomes a random signal. The control circuit 29 monitors this and determines that the audio signal is being input.

During the recording of the message by the automatic response operation, the control circuit 29
Judges whether or not there is voice, and if there is no sound for a certain period (for example, 8
If it continues for a second or when a busy tone is detected, the message recording operation is terminated, the line is released, and the next incoming call wait state is set.

Generally, an answering machine has a function (a transfer function) of calling a pager to promptly inform the owner of a message when a message is recorded. The owner called by the pager calls the answering machine, listens to the message by remote control, and performs the necessary operation.

Before explaining the transfer operation, the dial operation will be described. When the handset of the telephone is lifted (off-hook), the hook switch 11 operates the line control circuit 3 to form a DC loop with respect to the telephone station as described above. The dial information input from the keyboard 9 is [keyboard interface circuit 10 → dial circuit 7].
Is input to the tire circuit 7 in this order. In the case of the DP dial, the line control circuit 3 is operated by the signal from the dial circuit 7 to disconnect the DC loop of the line and send the DP pulse to the telephone station. In the case of PB dial, the signal from the dial circuit 7 is sent to the telephone station through the call circuit 4 by the same route as the above-mentioned message.

The dial circuit 7 sends a dial signal to the line. Here, the sending cycle will be described. The dial signal defines the sending time and the pause time until the next dial. For example, for PB signals, the transmission time is 50 msec or more, and the minimum pause is 30 ms.
ec or more, cycle (signal transmission time + minimum pause) is 1
It is set to 20 msec or more. The dial circuit 7 has a buffer memory (not shown) in case the dial information sent from the keyboard interface circuit 10 or the control circuit 29 is earlier than this cycle. Dial information is temporarily stored here, and a dial signal is transmitted at a defined dial speed (for example, every 125 msec). That is, when dial information is input faster than the dial transmission speed, it is temporarily stored in the buffer memory, and when it is slow, a dial signal is transmitted according to the input information. Also, the telephone station side receives the dial signal sent from the telephone, but here, a monitoring time for each digit (digit monitoring time) is provided, and if the signal interval is equal to or longer than this inter-digit monitoring time, Since it is not regarded as a series of dial operations, the telephone side may send a time dial signal from the above-mentioned minimum sending cycle (120 msec) to within the interdigit monitoring time.

In the case of one-touch dial or speed dial, the dial information of the keyboard 9 is first registered in the storage element S-RAM in the control circuit 29 through the route [keyboard interface circuit 10 → control circuit 29]. If the one-touch dial or speed dial is activated in the order of [keyboard 9 → keyboard interface circuit 10 → control circuit 29] as the dial operation, the control circuit 2
9 calls dial data from the corresponding internal storage element and sends it to the dial circuit 7. The dial circuit 7 sends a dial signal to the telephone office as before.

Next, the dial during the transfer operation according to the present invention will be described with reference to FIG. Figure 2 shows the display
Shows the registered dial data when transferring to a pager. D1 is the phone number of the pager to call (eg 0
351894259), PB is P from the DP dial signal
The conversion data to the B dial signal also serves as an identification code for the dial signal and the data. D2 is the display information (for example, 1234 when displaying 12345678)
5678 ##). This is registered in the memory (S-RAM) in the control circuit 29 as the dial number for the designated transfer, for example, the speed dial number ₁ (S ₁ ).
Here, the PB data is input regardless of whether it is a dial line or a PB line.

Next, in order for the answering machine to carry out the transfer, the control circuit 29 first causes the line control circuit 3 through the dial circuit 7.
To operate and close the line. Here, the control circuit 29 is a polarity detection circuit, which detects and stores the polarities of L ₁ and L ₂ of the telephone line 1. Next, the control circuit 29 stores the data of the speed dial No. 1 which is a dial for transfer (S-R).
It is read from (AM) (S ₃ ). The control circuit 29 is shown in FIG.
While monitoring the identification code PB shown in (a) (S
₄ ), D1 is sent to the dial circuit 7, and based on this, the dial circuit 7 sends the dial signal to D1 through the above-mentioned route. At this time, the dial transmission speed is the same as that of the normal one-touch dial (V ₁ ) (S ₅ ). The dial signal is a DP dial or a PB dial. Next, the control circuit 29 monitors whether or not the polarities of the telephone lines L ₁ and L ₂ are reversed from the stored state by the polarity detection circuit. The display pager station reverses the polarity of L ₁ and L ₂ in response to a telephone call. The control circuit 29 upon detecting a reversal (S _6), to determine whether the case of a transfer operation (S _7). In the case of the transfer operation, since the data is sent by the PB signal, the PB data for changing to the PB signal and the display information D2 are sent to the dial circuit 7. Here, the control circuit 29 sends the data sending speed, for example, every 200 msec when sending the contents of D2. Upon receiving the PB data, the dial circuit 7 changes the dial to PB and sends D2 by the PB signal through the same route as described above.
Here, if the dial signal is PB, the PB data is ignored. Since the dial data sent from the control circuit 29 comes every 200 msec, the sending speed of the dial signal becomes slower than the above speed (V ₁ ) (V ₂ ) (S ₈ ).
The control circuit 29 restores the line control circuit 3 at the time when the transmission of the dial D2 is completed or after a predetermined time from that, and opens the line. When the transfer operation is not performed (for example, dial operation in the case of international call), the control circuit 29 sends the next succeeding signal at the same V ₁ as before because the dial sending signal is the dial signal to the central office (S). ₉ ).

When the dial signal with the shortened number 1 is transmitted by manual transmission, the dial signal is transmitted in the same manner as in the above operation, but the transmission speed of D1 and D2 is the normal speed (V ₁ ). ) To send a dial signal (S
₈ ).

FIG. 2B shows a case where a pause time is inserted to wait for guidance guidance sent from the display / pager station. In this case, the pause time is set to be the time (for example, 18 seconds) until the dial D1 is sent to the telephone station to call the other party. After the pause time has elapsed, the dial transmission speed is changed and dialing is performed as in the above-described operation.

In the case of a display pager, when connecting to a calling station, voice guidance for prompting the input of display information by a PB signal from the station (for example,
"This is a pager station. Please send me your display information.") If this is determined to be a voice by the zero-cross circuit 22, it can be determined to be the partner's response, and thus it can be detected as the partner's response.

FIG. 2 shows an example in which D2 is sent at different speeds. The normal speed is V ₁ and the transfer speed is V ₂ .
The time average of the power of the harmonics of the PB signal is shown in FIG. 4, which is twice (a 2) and (b) in FIG. 3 (t ₂ = t ₁ ×
If it is 2), it will be 3 dBm lower. This makes it possible to satisfy the technical standard that regulates the transmission level of the frequency component outside the communication band of communication. In this description, V ₁ > V ₂ has been described, but V ₁ > V ₂ may be used as long as the level at the time of data transmission (V ₂ ) satisfies the technical standard.

[0023]

As described above, according to the present invention, the dial speed is changed from the dial speed in the case of normal dialing only during transfer and when the response of the other party can be determined. There are advantages that the technical standards that set the conditions can be realized easily and surely, and the number of digits of the registration dial is reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an answering machine according to the present invention.

FIG. 2 is a diagram showing a signal format of dial data registered in the device of the present invention.

FIG. 3 is a PB transmitted as data in the device of the present invention.
It is a time chart which shows a signal.

FIG. 4 is a characteristic diagram showing frequency components of a PB signal transmitted from the device of the present invention.

5 is an operation flow chart of the embodiment of FIG. 1. FIG.

FIG. 6 is a diagram showing an example of a signal format of conventional PB data.

[Explanation of symbols]

 1 Telephone Line Connection Terminal 2 Diode Bridge 3 DC Closing Transistor 4 Call Circuit 5 Handset 6 Transmitter 7 Dial Circuit 8 Power Supply 9 Keyboard 10 Keyboard Interface 11 Hook Switch 12 Capacitor 13 Diode Bridge 14 Tone Ringer Circuit 15 Transformer 16 Incoming Call Signal detection circuit 17 Recording / reproducing circuit 18 Speaker amplifier 19 Speaker 20 Microphone 21 Cassette deck 22 Zero cross circuit 23 Receiver 24 Voice synthesizer 25 D-RAM 26 Fixed message IC 27 Liquid crystal display 28 LED display 29 Control circuit 30 External power supply Input terminal 31 Power supply circuit.

Claims (4)

[Claims] 1. A line closing means for closing and opening a telephone line, a dial means, a partner response judging means, and a control means for controlling those means, wherein the line closing means is provided. A first dial transmission cycle when the telephone line is closed and a dial signal is transmitted by the dial means, and a dial signal by the dial means when the partner response determination means determines a partner response An answering machine that is configured so as to have a different second dial transmission cycle when transmitting a message. 2. The answering machine according to claim 1, wherein the other party answer judging means is configured to use polarity reversal of the telephone line sent from a telephone station. 3. The other party response judging means has a telephone number registered in advance, and the telephone number has a code for identifying a dial signal and data, and is registered in advance when the dial signal is sent by the dial means. 2. An answering machine according to claim 1, wherein after the dial signal up to the data identification code of said telephone number, said control means adjusts the required time until the other party's response and judges that the other party's response. . 4. The partner response judging means has a telephone number registered in advance, and the telephone number has a code for identifying a dial signal and data, and is registered in advance by the dial means at the time of a dial signal. 2. An answering machine according to claim 1, wherein after the dial signal up to the data identification code of the telephone number, the control means detects the signal sent from the telephone line to make a judgment.