CN2132356Y - Fully automatic telephone receiver-recorder - Google Patents

Abstract

The utility model relates to a fully automatic telephone receiver-recorder, which is composed of a collection circuit, a counting / decoding circuit, an amplifying and driving circuit, a sounding circuit, a decoding circuit, etc. which are integrated with the recorder core or a receiver-recorder of existing finished goods in one. The fully automatic telephone receiver-recorder belongs to the field of electronic technology. When the telephone set is unattended and a call rings, the utility model can switch on the telephone set automatically, tell the other party to leave a message, and enter the state of recording. After the talking completes, the utility model recovers automatically, rings off and waits for a second call. The fully automatic telephone receiver-recorder can continuously record the content of a telephone for 30 minutes.

Description

Fully automatic telephone receiver-recorder

The utility model is a kind of automatic telephone radio-cassette player, after telephone line is communicated with, can finish retractable, the recording function of telephone signal automatically, and can use as common radio-cassette player.Belong to electronic technology field.

Along with science and expanding economy, phone is becoming one of requisite communication tool in the human daily life.The owning amount of phone per capita of China also is doubled and redoubled.Because what the user of the overwhelming majority used at present all is ordinary telephone set, when unattended operation, telephone set has just become ornaments, and utilance is not high; Often caused the waste of time and information.The utility model can solve unattended problem well, replaces us automatically to connect phone, and informs that owner the other side does not exist, and can leave word, and record is the content of the other side's conversation down, behind the talk-through, restores automatically, hangs up the telephone, and waits the marquis to converse again.

At present, special-purpose dtelegraphone/device is only arranged abroad, the domestic stage that still is in assembling and copies.Dtelegraphone and " Miss on duty " etc. as assembling.Also not with the radio-cassette player of automatic recording phone information.Simultaneously, existing product causes to cost an arm and a leg because circuit is too complicated, uses also inconvenient.Most dtelegraphone/device is after receiving phone ringing sound, and demand working fails to stay suitable buffer time to both call sides, and it is unexpected that the other side can feel.In addition, automatically the time of recording all is delayed type, in fixing record length, tends to cause the phenomenon that still can not in time hang up behind the not enough or talk-through of recording time.Goal of the invention of the present utility model, simple, the economical and practical automatic telephone radio-cassette player of a kind of dependable performance, circuit that designs at above problem just.

The utility model is mainly by following several major parts: collection, counting/decoding, amplify circuit such as driving, playback, decoding and existing finished product recorder core or radio-cassette player and form.

Accompanying drawing (1) is a FB(flow block) of the present utility model.

Accompanying drawing (2) is a fundamental diagram of the present utility model.

With reference to accompanying drawing (2), in accompanying drawing (1): decoding is by the decoding ic chip₃And peripheral circuit consists of. Differential is by C₁₀、R ₃Consist of. Collection is by relay normally-closed contact J_1－1BAnd capacitor C₁Consist of. Shaping is by bridge rectifier D_1～4And R₁、C ₂With voltage-stabiliser tube D₆Formation in parallel. The counting/decoding by IC₁Consist of. Off-hook is by relay normally open contact J_1－1ASeries connection B₁Elementary formation. Playback is by the voice ic chip₂Consist of. Amplify and drive by triode T₁And relay J₁Consist of. Recording is made of finished product recorder core or the radio cassette player in the frame of broken lines.

Detailed operation principle is illustrated by accompanying drawing (2):

When insert telephone line on socket CZ, when telephone bell sounded, the bell signal in the speech channel was at first through normally closed contact J _1-1B, capacitance C ₁, send into D ₁～D ₄Bridge rectifier is then through C ₂, R ₁, D ₆The filter regulator circuit of forming with tens volts sinusoidal bell signal, becomes the square-wave signal of about 6V.This square-wave signal is sent into IC ₁13 pin inputs, IC ₁Be counting/decoder, can and be translated into 0～10 system output, elect 5 systems here as the pulse count signal of input, after receiving 5 rings, IC ₁1 pin output promptly export high level.This high level is divided into two-way: lead up to capacitor C ₃, be connected to the voice ic chip ₂2 pin trigger ends, make IC ₂Send the voice signal of " owner does not exist, and please leave word " from 3 pin outputs and give audio frequency transformer B ₁Secondary coil, through B ₁Telephone line is sent in coupling; Lead up to resistance R in addition ₂Current limliting is given triode T ₁Base current is provided, makes T ₁Saturation conduction drives relay J ₁Adhesive, J ₁Two groups of normally opened contact closures.J wherein _1-1AConnect B ₁Primary coil, closing of the circuit, recorded audio signals passes through B ₁Coupling is through capacitor C ₅Send into the line input circuit in the recorder, simultaneously normally closed some J _1-1BDisconnect, cut off Acquisition Circuit, with anti-tampering.J _1-2Connect recorder power, motor rotates, and begins recording.So just finished the startup work of automatic off-hook, playback and recording.

The other side can leave word behind the uppick signal of " owner does not exist, and please leave word ".Work as end of conversation, after the other side hangs up the telephone, promptly transmit the busy-back signal of " pouting ... pout ... " in the telephone line.This busy-back signal also passes through B ₁This machine of being coupled into, and pass through capacitor C ₆Send into decoding circuit IC ₃3 pin inputs, IC ₃Be the phase-locked loop decoder, at the busy-back signal cycle and 5 of input, the R on 6 pin ₄, C ₇When the time constant of being regulated conformed to, output 8 pin became low level by original high level, C ₁₀Pass through R ₃Discharge is gone up and is just being born down.When " toot " sound gap, IC ₃8 pin again saltus step be high level, this high level passes through C ₁₀, R ₃The derivative action after, at IC ₁1 pin preset end obtain a positive pulse, make IC ₁Count resets, complete machine restores, and finishes the calling record process one time, waits the marquis to converse again.C ₁₀, R ₃Guaranteed that also this machine is in reset condition automatically when energising.

AN is manual record button.When both sides' normal talking, the K switch on the recorder that closes presses the button AN, and AC signal can be passed through capacitor C ₄Transmit mutually, because C ₄Isolated direct current.Eliminated the loss of this machine and the parallel connection of telephone set two-shipper.

Characteristics of the present utility model: the one, selected for use middle scale CMOS integrated circuit to form, power consumption is extremely low, has simplified circuit greatly, makes dependable performance, and cost reduces, and the ratio of performance to price is far superior to present telephonograph/device; Two are to use conveniently, after a few being assembled into one of partial circuit, get final product work as long as plug telephone line separately; The 3rd, the circuit advanced person, automatic off-hook is by counting control, and antijamming capability is extremely strong.Automatic hand-up is controlled by phase-locked decoding, and the time length of not conversed limits.

These characteristics makes the utility model very practical, pulls up telephone plug, can be used as radio-cassette player and uses.Be suitable for the consumption of different levels.

Specific embodiments of the present utility model is as follows:

Resistance R ₁, R ₂Select 6.2K Ω for use, R ₃Be 390K Ω, R ₄Select the adjustable resistance of 15K Ω for use.Capacitor C ₁Employing 0.033uF/160V's, C ₂Be 47uF/16V, C ₃, C ₈, C ₉, C ₁₀For 1uF/16V, C _4～7Select 0.1uF/63V for use.Diode D _1～5Be 1N4001, D ₆Select the voltage-stabiliser tube about 6 volts for use, triode adopts 9014.Audio frequency transformer is selected telephone load SSC4 or self-control for use, and relay is 4099, K ₁Select the sub-switch of turning round of 250V/1A.Ic chip ₁Adopt CD4017, IC ₂Select the voice integrated package or the HD-8 voice plate of " owner does not exist, and please leave word " for use, IC ₃Be phase-locked loop decoder LM567.Radio-cassette player is selected the portable radio-cassette player of panda for use.

According to above listed, can produce simple, reliable, practical automatic telephone radio-cassette player.This radio-cassette player is applicable to various telephone lines occasion in one's power, can record the message of 30 fens kinds continuously.Improve the utilance of existing telephone, made things convenient for the mutual contact of people, saved valuable time.

Claims (4)

1, automatic telephone radio-cassette player, it is characterized in that it can be under the unattended situation of telephone set, automatically the content that under recording call in the outside, have the function of radio-cassette player concurrently, this machine by collection, counting/decoding, amplify circuit such as driving, playback, decoding and existing finished product acquisition inner works or radio-cassette player and form incorporate automatic telephone radio-cassette player.

2, radio-cassette player according to claim 1 is characterized in that IC in the counting/decoding circuit ₁Input 13 pin connect the bell signal of shaping, reset terminal 15 pin are connected to resistance R over the ground ₃, be connected to capacitor C simultaneously ₁₀Receive reset signal.

3, radio-cassette player according to claim 1 is characterized in that IC in the playback circuit ₂Adopt speech IC, trigger end 2 pin are to IC ₁Output 1 pin be connected to capacitor C ₃, IC ₂Output 3 pin meet audio frequency transformer B over the ground ₁Secondary coil.

4, radio-cassette player according to claim 1 is characterized in that the IC in the decoding circuit ₃Adopt phase-locked decoding integrated package, input 3 pin pass through capacitor C ₆Busy-back signal after the detection on-hook, output 8 pin are to IC ₁15 pin between be connected to capacitor C ₁₀, 1,2,6 pin respectively are connected with capacity earth, are connected to adjustable resistance R between 5,6 pin ₄

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