JP3056733U - Home phone peripherals - Google Patents

Abstract

(57) [Summary] [Problem] A peripheral device for a home telephone having a call waiting information display / recording function. A power supply circuit, a bell detection circuit, a receiver detection circuit, a starter tone detection circuit, a telephone line,
It is composed of a hold switching circuit, an FSK decoder, a CPU and a display and a dial device connected to the CPU, one end of the FSK decoder and the starter tone detection circuit is connected to a call circuit and a bell detection circuit, and the other end is connected to the CPU to make a call. -An electric control switch is provided in the hold switching circuit to connect with the telephone line, a connection maintaining voltage is provided at one end of the switch, and a timely call of the CPU to the bell detection circuit, starter tone detection circuit, handset detection circuit, and call detection circuit. The signal detection is combined, and when the CPU controls the dialing device to send a signal, the switch is activated to keep the original call connected so that the integrity of the signal transmission is obtained and the FSK during the call is obtained. Increased accuracy of signal acquisition.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a kind of peripheral device for home telephones, and particularly, when a telephone call is received from a third party during a call, the data and the starter (STUTTER) signal and the tone (TO NE) signal are detected, and the name, The present invention relates to a new telephone call waiting device that records and displays telephone number, time and voice message information in order.

[0002]

[Prior art]

 In early call waiting services, if a telephone call is received from a third party during a call, the telephone company simply sends a voice signal and cannot display the third party's first name, last name, or telephone number. If the call or the call from a third party is more important, ask the other party who is currently on the call to wait (hold), switch to the call with the third party, and check the third party's first and last name etc. I couldn't understand without doing it. However, if a call is made by a third party during an important call, the third party calls while continuing the call without switching to a third party to avoid disturbing the current call. In some cases, it became impossible to know who the third party was in order to stop.

[0003] With the progress of communication technology, when a call is received from a third party during a telephone call, a telephone having a "telephone number display function" for notifying a recipient of basic data relating to the third party has appeared. It can decode and record the FSK signal that conveys the other party's telephone number and the registered first and last names to the receiving side in a code system. A waiting signal for a call during a call contains two types of information, one of which is a 440 Hz SAS signal having a transmission time of about 30 microseconds, and the other is a signal combining a plurality of frequencies of 2750 + 2130 Hz. There is a CAS signal with a transmission time of about 80 microseconds. When the telephone company sends the SAS signal and the CAS signal from the telephone line, the CPU in the telephone during the call detects the signal and sends a DTMF signal to the telephone company, and the telephone company further sends an FSK signal, and thus a timely FSK signal. It decodes and records the signal, ie, displays the registered name and telephone number of the third party who called during the call. Another important item is voice message information detection. The timing of this detection is divided into two types. One is FSK transmission, which transmits signals before the telephone bell, and the other is S TUTTER TONE (starter tone) transmission, which is also divided into two types, one of which is The signal is transmitted for approximately 27 seconds when the handset is lifted (off-hook), and the other is transmission when the handset is left (on-hook), and the telephone company rings the first bell for 3 minutes and 57 seconds. In the meantime, how effectively and accurately catching obviously affects the function of the call waiting, and such a conventional call waiting recording device, both its detection and pick-up operation proceed during a call, and When catching, one or two of the above-mentioned methods are selected to improve the accuracy of obtaining a busy FSK signal.

[0004]

[Problems to be solved by the invention]

 The present invention captures basic data and a STUTTER TONE signal relating to a third party when a telephone call is received from a third party during a telephone call at a peripheral device of a home telephone, and sequentially retrieves the third party's first name, last name and telephone. It is an object of the present invention to provide a new call waiting device capable of recording and displaying time and voice message information.

[0005]

[Means for Solving the Problems]

 The invention according to claim 1 includes a power supply circuit 1 for supplying power for operating the apparatus normally, a bell detection circuit 2 for detecting whether there is an external telephone call, and a starter tone for detecting whether there is a voice message. A detection circuit 4, a telephone line 5 used for a telephone call, a call / hold switching circuit 6 used for selecting switching between a telephone call and a hold with two or more parties, FSK for decoding information including a telephone number of a third party The decoder 7 decodes the judgment signal of the detection result of the electric circuit described above, records the operation timing, then displays the call waiting information on the display 91 connected thereto, and uses the DTMF dial device 92 to read the telephone number of the third party in the decoding information. The FSK decoder 7 and one end of the stutter tone detection circuit 4 are connected to the telephone line 5 and the bell detection circuit 2 and the other end is connected to the CPU 8 at least. The switch sw1 and sw2 for electric control are provided in the call / hold switching circuit 6 and connected to the telephone line 5, and one end of the switch sw1 is combined with the connection maintaining voltage 61, and thus the bell detection circuit 2 is connected. In addition, the handset detection circuit 3 and the stutter tone detection circuit 4 are combined with the timely detection of a call waiting signal of the CPU 8, and when the CPU 8 controls the dial device 92 to send out a signal, the switches sw1 and sw2 are activated to perform a switching operation. And maintaining the connection maintaining voltage 61 in the original telephone line 5, obtaining the integrity of signal transmission, increasing the accuracy of FSK signal catch during a call, and improving the accuracy of FSK signal catch during a call. And a peripheral device for a home telephone characterized by having the above configuration.

According to the invention of claim 2, the bell detecting circuit 2 is composed of a photocoupler 21, a resistor, a capacitor and a voltage stabilizing diode 22, and the handset detecting circuit 3 is composed of a rectifying circuit 31, a photocoupler 32 and a voltage dividing circuit. The stutter tone detection circuit 4 is composed of a signal amplifier 41, a detector 42 and a transistor 43, and the call / hold switching circuit 6 is connected to one of the transistors 43. The relay according to claim 1, characterized in that it comprises one relay (63), one attenuation circuit (64) and one connection maintaining voltage (61), the attenuation circuit (64) being located between the FSK decoder (7) and the telephone line (5). It is a peripheral device of the home telephone described.

The invention according to claim 3 is the peripheral device for a home telephone according to claim 1 or 2, wherein the connection maintaining voltage 61 is at least 12 volts DC.

[0008]

[Embodiment of the invention]

 The peripheral device of the home telephone according to the present invention includes a power supply circuit, a bell detection circuit, a reception detection circuit (including a serial and parallel connection receiver), a starter tone detection circuit, a telephone line, a call / hold switching circuit, an FSK. It consists of a decoder, a CPU, and a display and dial device connected to it. Among them, one end of the FSK decoder and the starter tone detection circuit is connected to the call circuit and the bell circuit, the other end is connected to the CPU, and the call / hold switching circuit is provided with an electric control switch and is connected to the telephone line. A maintenance conduction voltage is provided at one end of the switch, and thus the bell detection circuit, the start tone detection circuit, and the handset detection circuit combine the call detection circuit with the CPU to appropriately detect a call signal by a third party, and When the CPU controls the dialing device to send a signal, the switch is activated to maintain the connection state of the original call, thus obtaining the integrity of the signal transmission and improving the accuracy of acquiring the FSK signal during the call. Is increasing.

[0009]

【Example】

 As shown in FIG. 1, the peripheral device of the home telephone according to the present invention includes a power supply circuit 1, a bell detection circuit 2, a handset detection circuit 3, a starter tone detection circuit 4, a telephone line 5, a call / hold switching circuit. 6, the FSK decoder 7, the CPU 8, and the display 91 and the dial device 92 connected to the CPU 8 to form a high efficiency call waiting function.

[0010] The power supply circuit 1 supplies power for normal operation of the device.

The bell detection circuit 2 detects whether or not there is a telephone call from outside.

The handset detection circuit 3 detects whether the handset is in an on-hook state or an off-hook state.

The stutter tone detection circuit 4 detects the presence or absence of voice message information.

The telephone line 5 is used for a telephone call.

The call / hold switching circuit 6 is used for selecting a call between two or more people and a call holding area switching.

The FSK decoder 7 decodes information including a telephone number of a third party.

The CPU 8 decodes the judgment signal of the detection result of the above-described electric circuit, records the operation timing, displays call-waiting information on a display 91 connected thereto, and uses the DTMF dial device 92 to decode the third party in the decoding information. Dial the phone number.

As shown in FIG. 2, one end of the FSK decoder 7 and the stutter tone detection circuit 4 are connected to the telephone line 5 and the bell detection circuit 2, and the other end is connected to the CPU 8. Switches sw1 and sw2 for electric control (relays of FIG. 6 or other electric parts having the same function) are provided and connected to the telephone line 5, and one end of the switch sw1 is combined with a connection maintaining voltage 61. . In this way, the bell detecting circuit 2, the handset detecting circuit 3, and the stutter tone detecting circuit 4 are combined with the CPU 8 to detect a calling signal of a third party who is talking on a timely basis, and the CPU 8 controls the dial device 92 to generate a signal. , The switches sw1 and sw2 are activated to perform the switching operation, hold the connection maintaining voltage 61 on the original telephone line 5, obtain the integrity of the signal transmission of the dial device 92, and catch the FSK signal during the call. The third party's telephone number, first and last name or stutter signal and tone signal are detected, and the voice message information is recorded and displayed for use in making a call again later.

FIGS. 3 to 6 show detailed compositions of other electric circuits according to the present invention and specific circuits thereof.

The bell detecting circuit 2 is composed of a photocoupler 21, a resistor, a capacitor, and a voltage stabilizing diode 22. The bell signal is taken out from the telephone line, converted into a DC voltage by the photocoupler 21, supplied to the CPU 8, and used for detection. .

The receiver detecting circuit 3 is composed of a rectifying circuit 31, a photocoupler 32 and a voltage dividing circuit 33, rectifies and attenuates the telephone line voltage, takes out the voltage, and provides it to the CPU 8 for detection. If the potential is detected, the receiver is in the off-hook state, and if the high potential is detected, it is determined that the receiver is in the on-hook state, and it is possible to simultaneously detect the receivers connected in series and in parallel.

The stutter tone detection circuit 4 is composed of a signal amplifier 41, a detector 42 and a transistor 43. The stutter tone detection circuit 4 amplifies and detects a stutter signal taken out from a telephone line, drives the transistor 43 to turn on and off, and the CPU 8 And provides a basis for judging the presence or absence of stutter tone voice message information.

The call / hold switching circuit 6 is composed of a transistor 43, one relay 63, one attenuating circuit 64 and one connection maintaining voltage 61, and the attenuating circuit 64 comprises the FSK decoder 7 and the telephone line 5. Located between.

At the time of application, if the receiver is in the off-hook state, it is possible to listen to the call waiting call for about 26 to 27 seconds during a call, and therefore, in the present invention, the CPU 8 detects the presence or absence of the stutter tone signal once in 27 seconds. If there is a call from a third party as a result of the detection, the CPU 8 causes the dial device 92 to perform D / A conversion to generate a dial signal, and proceeds with the above-described operation of catching the FSK signal. Then, the detailed contents are displayed and recorded on the display 91, and if the handset is in the on-hook state, the CPU 8 detects whether there is a ringing signal within 4 minutes and 57 seconds after the first bell. In the same way, display and record the correlation information of the other party, if any, and use it for subsequent checks and automatic dialing.

[0025]

[Effect of the invention]

 In summary, the present invention combines the timely detection of the CPU and the effective control of the call / hold switching circuit with the bell, handset, and stutter tone detection circuits to achieve 90% accuracy in detecting correlation data relating to the sender. The effect has been significantly improved compared to the conventional correlation structure.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electric circuit of the present invention.

FIG. 2 is an operation block diagram of the call / hold switching circuit of the present invention.

FIG. 3 is a bell circuit diagram of the present invention.

FIG. 4 is a diagram of a receiver detection circuit according to the present invention.

FIG. 5 is a circuit diagram of a starter tone detection circuit according to the present invention.

FIG. 6 is an electric circuit diagram of the call / hold switching circuit of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power supply circuit 2 Bell detection circuit 21 Photocoupler 22 Voltage stabilizing diode 3 Handset detection circuit 31 Rectifier circuit 32 Photocoupler 33 Divider circuit 4 Starter tone detection circuit 41 Amplifier 42 Detector 43 Transistor 5 Telephone line 6 Talk / Hold switching circuit 61 Connection maintenance Voltage 62 Transistor 63 Relay 64 Attenuation circuit 7 FSK decoder 8 CPU 91 Display 92 Dial device sw1, sw2 switch

Claims (3)

[Utility model registration claims] 1. A power supply circuit 1 for supplying power for normal operation of the apparatus, a bell detection circuit 2 for detecting whether there is an external telephone call, and a starter tone detection circuit for detecting whether there is a voice message. 4. Telephone line 5 used for telephone calls, Talk / Hold switching circuit 6 used to select switching between telephone calls and hold with two or more parties, FSK decoder 7 for decoding information including telephone numbers of third parties Decoding the judgment signal of the detection result of the electric circuit described above, recording the operation timing, displaying the call waiting information on the display 91 connected thereto, and dialing the third party's telephone number in the decoding information by the DTMF dial device 92. The FSK decoder 7 and one end of the stutter tone detection circuit 4 are connected to the telephone line 5 and the bell detection circuit 2 and the other end is connected to the CPU 8 The call / hold switching circuit 6 is provided with switches sw1 and sw2 for electric control and is connected to the telephone line 5, and one end of the switch sw1 is combined with the connection maintaining voltage 61, thus the bell detection circuit 2 and the handset detection circuit 3. The stutter tone detection circuit 4 includes a CPU
When the CPU 8 controls the dial device 92 and sends out a signal, the switches sw1 and sw2 are activated to perform the switching operation, and the connection maintaining voltage 61 is held on the original telephone line 5 when the timepiece call signal detection of the time 8 is combined and the CPU 8 controls the dial device 92 to send out the signal. And obtaining the integrity of signal transmission, increasing the accuracy of FSK signal catch during a call, increasing the accuracy of FSK signal catch during a call, and having the above configuration, Home phone peripherals. 2. The photodetector according to claim 1, wherein said bell detection circuit is a photocoupler.
1. The receiver detection circuit 3 is composed of a resistor, a capacitor, and a voltage stabilizing diode 22. The receiver detection circuit 3 is composed of a rectifier circuit 31, a photocoupler 32, and a voltage divider circuit 33, and can simultaneously detect serial and parallel receivers. 4
Are the signal amplifier 41, the detector 42 and the transistor 43
The call / hold switching circuit 6 is composed of a transistor 43, one relay 63, one attenuating circuit 64 and one connection maintaining voltage 61, and the attenuating circuit 64 is connected to the FSK decoder 7 and the telephone line 5. 2. The home telephone peripheral device according to claim 1, wherein the peripheral device is located between the home telephone devices. 3. The home telephone peripheral device according to claim 1, wherein the connection maintaining voltage 61 is at least 12 volts DC.