Telephone prompting device

Abstract

A telephone prompting device, when the telephone rings, the cable modem outputs different voltage signals according to the state of the telephone, comprising: a detection unit for detecting the change of the voltage signal output by the cable modem, and outputting a detection signal according to the change of the voltage signal; an output unit electrically connected to the detection unit, for outputting a prompt signal according to the detection signal; an alarm unit electrically connected to the output unit, for issuing an alarm signal according to the prompt signal, and timely reminding the user of incoming calls and missed calls.

Description

Technical Field

[0001] This invention relates to the field of incoming call alert technology, and more particularly to a telephone alert device. Background Technology

[0002] In typical homes or offices, a ringing phone is usually used as a warning when a call comes in. However, if the phone rings in a noisy environment or when the owner is out, the call may be missed, causing inconvenience to the user. Summary of the Invention

[0003] Therefore, it is necessary to provide a telephone notification device to promptly remind users of incoming and missed calls.

[0004] One embodiment of the present invention provides a telephone notification device, wherein when the telephone rings, a cable modem outputs different voltage signals according to the status of the telephone, including:

[0005] A detection unit is used to detect changes in the voltage signal output by the cable modem and output a detection signal based on the changes in the voltage signal.

[0006] The output unit is electrically connected to the detection unit and is used to output a reminder signal based on the detection signal;

[0007] An alarm unit, electrically connected to the output unit, is used to issue an alarm signal based on the reminder signal.

[0008] Preferably, it further includes a voltage divider circuit electrically connected to the detection unit for reducing the amplitude of the output voltage signal of the cable modem.

[0009] Preferably, the detection unit includes:

[0010] The first detection subunit is electrically connected to the voltage divider circuit and is used to output a first detection signal according to the change of the voltage signal output by the detection cable modem;

[0011] The second detection subunit is electrically connected to the voltage divider circuit and is used to output a second detection signal according to the change of the voltage signal output by the detection cable modem;

[0012] The third detection subunit is electrically connected to the voltage divider circuit and is used to output a third detection signal based on the change in the voltage signal output by the detection cable modem.

[0013] Preferably, when the telephone is ringing, the cable modem outputs a first voltage signal that is a continuous sine wave:

[0014] The first detection subunit outputs a first detection signal as a continuous square wave;

[0015] The second detection subunit outputs a high-level second detection signal;

[0016] The third detection subunit outputs a high-level third detection signal;

[0017] The output unit outputs a continuous square wave reminder signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit;

[0018] The alarm unit outputs an intermittent alarm signal based on the continuous square wave reminder signal output by the output unit.

[0019] Preferably, when the telephone is in a ringing but unanswered state, the cable modem outputs a low-level first voltage signal:

[0020] The first detection subunit outputs a high-level first detection signal;

[0021] The second detection subunit outputs a high-level second detection signal;

[0022] The third detection subunit outputs a high-level third detection signal;

[0023] The output unit outputs a high-level reminder signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit;

[0024] The alarm unit outputs a continuous alarm signal based on the high-level reminder signal output by the output unit.

[0025] Preferably, when the telephone is in the off-hook state and the cable modem outputs a high-level first voltage signal:

[0026] The first detection subunit outputs a high-level first detection signal;

[0027] The second detection subunit outputs a low-level second detection signal;

[0028] The third detection subunit outputs a low-level third detection signal;

[0029] The output unit outputs a low-level alert signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit;

[0030] The alarm unit does not output an alarm signal.

[0031] Preferably, when the telephone is in the answer-and-hang-up state, the cable modem outputs a low-level first voltage signal:

[0032] The first detection subunit outputs a high-level first detection signal;

[0033] The second detection subunit outputs a low-level second detection signal;

[0034] The third detection subunit outputs a high-level third detection signal;

[0035] The output unit outputs a low-level alert signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit;

[0036] The alarm unit does not output an alarm signal.

[0037] Preferably, the first detection subunit includes:

[0038] The first voltage follower circuit is electrically connected to the voltage divider circuit to reduce signal interference.

[0039] A phase Schmitt trigger circuit, electrically connected to the first voltage follower circuit, is used to output a first detection signal based on the change in the voltage signal output by the detection cable modem;

[0040] The first voltage shaping circuit is electrically connected to the in-phase Schmitt trigger circuit and is used to output the first detection signal in half-wave shaping.

[0041] Preferably, the second detection subunit includes:

[0042] The second voltage follower circuit is electrically connected to the voltage divider unit to reduce signal interference.

[0043] An inverting Schmitt trigger circuit, electrically connected to the second voltage follower circuit, is used to output a second detection signal based on the change in the voltage signal output by the detection cable modem;

[0044] The second voltage shaping circuit is electrically connected to the inverted Schmitt trigger circuit and is used to output the second detection signal in half-wave shaping.

[0045] Preferably, the third detection subunit includes:

[0046] The third voltage follower circuit is electrically connected to the voltage divider unit to reduce signal interference.

[0047] A voltage comparison circuit, electrically connected to the third voltage follower circuit, is used to output a third detection signal based on the change in the voltage signal output by the detection cable modem;

[0048] The third voltage shaping circuit is electrically connected to the voltage comparison circuit and is used to output the third detection signal in half-wave shaping.

[0049] Compared to existing technologies, the telephone alert device provided in this invention detects changes in the voltage signal output by the cable modem through a detection unit, outputs a detection signal based on the changes in the voltage signal, then outputs an alert signal through an output unit based on the detection signal, and finally issues an alarm signal through an alarm unit based on the alert signal, so as to promptly remind the user of incoming and missed calls. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a module of one embodiment of the telephone prompting device of the present invention;

[0051] Figure 2 This is a schematic diagram of a module of one embodiment of the telephone prompting device of the present invention;

[0052] Figure 3 This is a waveform diagram of the telephone notification device of the present invention;

[0053] Figure 4 This is a circuit diagram of one embodiment of the telephone prompting device of the present invention.

[0054] Explanation of main component symbols

[0055] Telephone reminder device: 10

[0056] Detection unit: 100

[0057] Output unit: 101

[0058] Alarm unit: 102

[0059] Voltage divider circuit: 103

[0060] First detection subunit: 1001

[0061] First detection subunit: 1002

[0062] First detection subunit: 1003

[0063] First voltage follower circuit: G1

[0064] In-phase Schmitt trigger circuit: S1

[0065] First voltage shaping circuit: Re1

[0066] Second voltage follower circuit: G2

[0067] Inverting Schmitt trigger circuit: S2

[0068] Second voltage shaping circuit: Re2

[0069] Third voltage follower circuit: G3

[0070] Voltage comparator circuit: CP1

[0071] Third voltage shaping circuit: Re3

[0072] Resistors: R1-R18

[0073] Capacitor: C1

[0074] Transistors: Q1-Q3

[0075] Amplifiers: AP1a, AP1b, AP1c, AP2

[0076] Comparator: AP3

[0077] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0079] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0080] See Figure 1 As shown, Figure 1 This is a schematic diagram of a module of one embodiment of the telephone prompting device 10 of the present invention. In this embodiment, the telephone prompting device 10 can be applied to a landline telephone equipped with a cable modem. Cable modems utilize cable television networks for data transmission and are widely used in many countries around the world. Currently, most cable modems include VoIP (Voice over Internet Protocol) functionality. When the telephone rings, the cable modem outputs different voltage signals according to the telephone's status. For example... Figure 1As shown, the telephone alert device 10 includes a detection unit 100, an output unit 101, and an alarm unit 102. The detection unit 100 detects changes in the voltage signal output by the cable modem 20 and outputs a detection signal based on these changes. The output unit 101, electrically connected to the detection unit 100, outputs an alert signal based on the detected signal. The alarm unit 102, electrically connected to the output unit 101, issues an alarm signal based on the alert signal. Specifically, when the telephone is in different states such as ringing, missed call, answering, or hanging up, the cable modem 20 outputs different voltage signals. The detection unit 100 outputs different alert signals based on the detected voltage signals to trigger the alarm unit 102 to issue an alarm signal. For example, when the telephone is ringing, a first alarm signal is issued; when the telephone is in a missed call state, a second alarm signal is issued, promptly reminding the user of incoming and missed calls.

[0081] See Figure 2 As shown, Figure 2 This is a schematic diagram of a module of one embodiment of the telephone prompting device 10 of the present invention. Figure 2 As shown, based on the above embodiment, the telephone prompting device 10 further includes a voltage divider circuit 103. The detection unit 100 includes a first detection subunit 1001, a second detection subunit 1002, and a third detection subunit 1003. The voltage divider circuit 103, electrically connected to the detection unit 100, is used to reduce the amplitude of the output voltage signal of the cable modem 20. The first detection subunit 1001, electrically connected to the voltage divider circuit 103, is used to output a first detection signal based on changes in the voltage signal output by the cable modem 20. The second detection subunit 1002, electrically connected to the voltage divider circuit 103, is used to output a second detection signal based on changes in the voltage signal output by the cable modem 20. The third detection subunit 1003, electrically connected to the voltage divider circuit 103, is used to output a third detection signal based on changes in the voltage signal output by the cable modem 20.

[0082] Specifically, in conjunction with the appendix Figure 3When the telephone is ringing and the cable modem 20 outputs a continuous sine wave first voltage signal: the first detection subunit 1001 outputs a continuous square wave first detection signal; the second detection subunit 1002 outputs a high-level second detection signal; the third detection subunit 1003 outputs a high-level third detection signal; the output unit 101 outputs a continuous square wave reminder signal based on the signals output by the first detection subunit 1001, the second detection subunit 1002, and the third detection subunit 1003; the alarm unit 102 outputs an intermittent alarm signal based on the continuous square wave reminder signal output by the output unit 101. When the phone is in a ringing but unanswered state, and the cable modem 20 outputs a low-level first voltage signal: the first detection subunit 1001 outputs a high-level first detection signal; the second detection subunit 1002 outputs a high-level second detection signal; the third detection subunit 1003 outputs a high-level third detection signal; the output unit 101 outputs a high-level reminder signal based on the signals output by the first detection subunit 1001, the second detection subunit 1002, and the third detection subunit 1003; the alarm unit 102 outputs a continuous alarm signal based on the high-level reminder signal output by the output unit 101. When the phone is in the off-hook state and the cable modem 20 outputs a high-level first voltage signal: the first detection subunit 1001 outputs a high-level first detection signal; the second detection subunit 1002 outputs a low-level second detection signal; the third detection subunit 1003 outputs a low-level third detection signal; the output unit 101 outputs a low-level alert signal based on the signals output by the first detection subunit 1001, the second detection subunit 1002, and the third detection subunit 1003; the alarm unit 102 does not output an alarm signal. In this embodiment, the output unit 101 is preferably an AND gate logic unit, and the alarm unit 102 is preferably a buzzer.

[0083] In this embodiment, the first detection subunit 1001 includes a first voltage follower circuit G1, a non-inverting Schmitt trigger circuit S1, and a first voltage shaping circuit Re1. The first voltage follower circuit G1 is electrically connected to the voltage divider circuit 103 to reduce signal interference. The non-inverting Schmitt trigger circuit S1 is electrically connected to the first voltage follower circuit G1 and outputs a first detection signal based on changes in the voltage signal output by the detection cable modem 20. The first voltage shaping circuit Re1 is electrically connected to the non-inverting Schmitt trigger circuit and outputs the first detection signal in half-wave shaping. The second detection subunit includes a second voltage follower circuit G2, an inverting Schmitt trigger circuit S2, and a second voltage shaping circuit Re2. The second voltage follower circuit G2 is electrically connected to the voltage divider unit to reduce signal interference. The inverting Schmitt trigger circuit S2 is electrically connected to the second voltage follower circuit G2 and outputs a second detection signal based on changes in the voltage signal output by the detection cable modem 20. The second voltage shaping circuit Re2, electrically connected to the inverting Schmitt trigger circuit S2, is used to half-wave shape and output the second detection signal. The third detection subunit 1003 includes a third voltage follower circuit G3, a voltage comparator circuit CP1, and a third voltage shaping circuit Re3. The third voltage follower circuit G3 is electrically connected to the voltage divider unit 103 to reduce signal interference. The voltage comparator circuit CP1 is electrically connected to the third voltage follower circuit G3 and is used to output a third detection signal based on changes in the voltage signal output by the detection cable modem. The third voltage shaping circuit Re3 is electrically connected to the voltage comparator circuit CP1 and is used to half-wave shape and output the third detection signal.

[0084] See Figure 4 As shown, Figure 4 This is a circuit diagram of one embodiment of the telephone prompting device 10 of the present invention. Figure 4 As shown, in this embodiment, the voltage divider unit 103 includes resistors R1 and R2 and capacitor C1. One end of resistor R1 receives the Vbat signal output by the cable modem 20, and the other end is electrically connected to one end of resistor R2. The other end of resistor R2 is grounded. One end of capacitor C1 is electrically connected to the common terminal of resistors R1 and R2, and the other end of capacitor C1 is grounded. The first voltage follower circuit G1, the second voltage follower G2, and the third voltage follower G3 have the same structure. Taking the first voltage follower circuit G1 as an example, the first voltage follower circuit G1 includes amplifier AP1a. The non-inverting input terminal of amplifier AP1a is electrically connected to the common terminal of resistors R1 and R2, and the inverting input terminal of amplifier AP1a is electrically connected to the output terminal of amplifier AP1a.

[0085] In this embodiment, the in-phase Schmitt trigger circuit S1 includes a resistor R3, one end of which is electrically connected to the output terminal of the amplifier AP1a; a resistor R4, one end of which is electrically connected to the other end of the resistor R3, and the other end of which is electrically connected to a first voltage of 3.3V; a resistor R5, one end of which is electrically connected to one end of the resistor R4, and the other end of which is electrically connected to a second voltage of -10V; a first transistor Q1, the base of which is electrically connected to the common terminal of the resistors R4 and R5, the collector of which is electrically connected to the first voltage of 3.3V through a resistor R6, and the emitter of which is electrically connected to the second voltage of -10V through a resistor R7; a second transistor Q2, the base of which is electrically connected to the collector of the first transistor Q1 through a resistor R8, and also electrically connected to the second voltage of -10V through a resistor R9, the collector of which is electrically connected to the first voltage of 3.3V through a resistor R10, and the emitter of which is electrically connected to the emitter of the first transistor Q1. The first voltage shaping circuit Re1 includes a resistor R11, one end of which is electrically connected to the collector of the second diode Q2; a resistor R12, one end of which is electrically connected to the other end of the resistor R11, and the other end is grounded; a diode D1, the cathode of which is electrically connected to the other end of the resistor R11, and the anode of which is grounded; and the common terminal of the resistor R11, the resistor R12 and the diode D1 is electrically connected to the output unit 101.

[0086] In this embodiment, the inverting Schmitt trigger circuit S2 includes amplifier AP2, with its non-inverting input terminal electrically connected to the output terminal of amplifier AP1b. One end of resistor R13 is electrically connected to the output terminal of amplifier AP2; one end of resistor R14 is electrically connected to the other end of resistor R13, and the other end is grounded; the inverting input terminal of amplifier AP2 is electrically connected to the common terminal of resistors R13 and R14. The second voltage shaping circuit Re2 includes a third transistor Q3, with its base electrically connected to the output terminal of amplifier AP2 via diodes D2, D3, D3, and resistor R15 connected in series. Its emitter is grounded, and its collector is electrically connected to a first voltage of 3.3V via resistor R16. The common terminal of the emitter and resistor R16 is electrically connected to output unit 101.

[0087] In this embodiment, the voltage comparison circuit CP1 includes a comparator AP3, with its non-inverting input electrically connected to the output of amplifier AP1c and its inverting input electrically connected to the reference voltage Vref. The third voltage shaping circuit Re3 includes a resistor R17, one end of which is electrically connected to the output of comparator AP3; a resistor R18, one end of which is electrically connected to the other end of resistor R17, and the other end is grounded; and a diode D4, with its cathode electrically connected to the other end of resistor R17 and its anode grounded. The common terminal of resistors R17 and R18 and diode D4 is electrically connected to the output unit 101.

[0088] Compared to existing technologies, the telephone alert device provided in this invention detects changes in the voltage signal output by the cable modem through a detection unit, outputs a detection signal based on the changes in the voltage signal, then outputs an alert signal through an output unit based on the detection signal, and finally issues an alarm signal through an alarm unit based on the alert signal, so as to promptly remind the user of incoming and missed calls.

[0089] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and modifications made to the above embodiments within the essential spirit and scope of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A telephone notification device, wherein when the telephone rings, a cable modem outputs different voltage signals according to the status of the telephone, characterized in that, include: A detection unit is used to detect changes in the voltage signal output by the cable modem and output a detection signal based on the changes in the voltage signal. The detection unit includes: The first detection subunit is electrically connected to the cable modem and is used to output a first detection signal based on the change in the voltage signal output by the detection cable modem. The second detection subunit is electrically connected to the cable modem and is used to output a second detection signal based on the change in the voltage signal output by the detection cable modem. The third detection subunit is electrically connected to the cable modem and is used to output a third detection signal based on the change in the voltage signal output by the detection cable modem. An output unit, electrically connected to the first detection subunit, the second detection subunit, and the third detection subunit, is used to output a reminder signal based on the first detection signal, the second detection signal, and the third detection signal; An alarm unit, electrically connected to the output unit, is used to issue an alarm signal based on the reminder signal; wherein, When the telephone is ringing, the cable modem outputs a first voltage signal that is a continuous sine wave: The first detection subunit outputs a first detection signal as a continuous square wave; The second detection subunit outputs a high-level second detection signal; The third detection subunit outputs a high-level third detection signal; The output unit outputs a continuous square wave reminder signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit; The alarm unit outputs an intermittent alarm signal based on the continuous square wave reminder signal output by the output unit.

2. The telephone notification device as described in claim 1, characterized in that, It also includes a voltage divider circuit, electrically connected to the detection unit, for reducing the amplitude of the output voltage signal of the cable modem.

3. The telephone notification device as described in claim 1, characterized in that, When the telephone is in a ringing but unanswered state, the cable modem outputs a low-level first voltage signal: The first detection subunit outputs a high-level first detection signal; The second detection subunit outputs a high-level second detection signal; The third detection subunit outputs a high-level third detection signal; The output unit outputs a high-level reminder signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit; The alarm unit outputs a continuous alarm signal based on the high-level reminder signal output by the output unit.

4. The telephone notification device as described in claim 1, characterized in that, When the phone is in the off-hook state, the cable modem outputs a high-level first voltage signal: The first detection subunit outputs a high-level first detection signal; The second detection subunit outputs a low-level second detection signal; The third detection subunit outputs a low-level third detection signal; The output unit outputs a low-level alert signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit; The alarm unit does not output an alarm signal.

5. The telephone notification device as described in claim 1, characterized in that, When the phone is in the "answered and then hung up" state, the cable modem outputs a low-level first voltage signal: The first detection subunit outputs a high-level first detection signal; The second detection subunit outputs a low-level second detection signal; The third detection subunit outputs a high-level third detection signal; The output unit outputs a low-level alert signal based on the signals output by the first detection subunit, the second detection subunit, and the third detection subunit; The alarm unit does not output an alarm signal.

6. The telephone notification device as claimed in claim 2, characterized in that, The first detection subunit includes: The first voltage follower circuit is electrically connected to the voltage divider circuit to reduce signal interference. A phase Schmitt trigger circuit, electrically connected to the first voltage follower circuit, is used to output a first detection signal based on the change in the voltage signal output by the detection cable modem; The first voltage shaping circuit is electrically connected to the in-phase Schmitt trigger circuit and is used to output the first detection signal in half-wave shaping.

7. The telephone notification device as described in claim 2, characterized in that, The second detection subunit includes: The second voltage follower circuit is electrically connected to the voltage divider circuit and is used to reduce signal interference; An inverting Schmitt trigger circuit, electrically connected to the second voltage follower circuit, is used to output a second detection signal based on the change in the voltage signal output by the detection cable modem; The second voltage shaping circuit is electrically connected to the inverted Schmitt trigger circuit and is used to output the second detection signal in half-wave shaping.

8. The telephone notification device as described in claim 2, characterized in that, The third detection subunit includes: The third voltage follower circuit is electrically connected to the voltage divider circuit and is used to reduce signal interference; A voltage comparison circuit, electrically connected to the third voltage follower circuit, is used to output a third detection signal based on the change in the voltage signal output by the detection cable modem; The third voltage shaping circuit is electrically connected to the voltage comparison circuit and is used to output the third detection signal in half-wave shaping.

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