CN2215163Y - Clip-type telephone off-line transmitter - Google Patents

Abstract

The utility model discloses a device which can utilize the household radio-receiver recorder to cause the common telephone set to be added with the sound intensifying function, the sound amplification function and the sound recording function. The device is characterized in that two coils with identical structures and parameters and connected homonymic ends are adopted to be served as the signal pick device of the telephone so that while in use, the telephone or the telephone line is not needed to be changed, and the household radio-receiver recorder is not needed to be changed any more. Moreover, in the process of transmitting the signal, the environmental noise or the self-excitation howling can not be generated. The device does not need the energy when working, and the stray interference of the industrial frequency can be automatically removed. The figure is the configuration schematic diagram of the concrete structure of the embodiment of the utility model.

Description

Clip-type telephone off-line transmitter

The utility model relates to a kind of family expenses radio-cassette player that can utilize makes plain old telephone increase repeating, amplify and the attachment device of sound-recording function.

Make telephone set have repeating, amplify and the means of sound-recording function mainly contain three kinds at present: a kind of is directly to draw the signal of telecommunication from the circuit of telephone set, is handled then.The mode that this method obtains telephone signal belongs to online mode.Because online mode obtains the operating state that telephone signal can influence telephone line, thereby need obtain the permission of telecommunication department when adopting this method.Another kind is the voice signal that directly receives telephone receiver with the built-in microphone of family expenses radio-cassette player, handles then.This mode that obtains telephone signal is called offline mode.Because the offline mode of this acquisition acoustical signal is uttered long and high-pitched sounds in speech playback time introducing ambient noise and self-excitation easily, thereby less use.The third is to utilize coil to pick up the electromagnetic signal that telephone set or telephone line leak, and handles then.This method also belongs to offline mode, and what difference was that this method obtains is the phone signal of telecommunication, rather than acoustical signal.This method is used for high-grade multi-feature telephone or phone sound increase apparatus more, and often needs the power supply and the line that add.

Task of the present utility model provides a kind of attachment device for ordinary telephone set exactly, and it can transfer to the family expenses radio-cassette player with telephone signal with offline mode and be increased and amplify and record.

Task of the present utility model is finished as follows:

Two structures, parameter are identical, and relative position is fixed and asymmetric electromagnetic signal pick-up winding connects in the zero sequence mode, that is: one group of end of the same name directly is connected, and another is organized end of the same name and is connected by a resistor.And draw two output lines by the two ends of above-mentioned resistor simultaneously, output line is connected to family expenses radio-cassette player external microphone (MIC) socket through a coaxial twin-core plug.When above-mentioned electromagnetic signal pick-up winding group being placed near the telephone receiver of conversing or telephone line, the electromagnetic signal that two coils just can differentially induce on the telephone line to be leaked, above-mentioned signal is sent the family expenses radio-cassette player to via above-mentioned resistor, lead and plug and is handled, and finishes increasing of telephone signal and amplifies and record.Because two coils of above-mentioned electromagnetic signal pick-up winding group connect in the zero sequence mode, so can eliminate the power frequency clutter interference in the telephone line.

The utility model is with the differential phone signal of telecommunication that picks up of offline mode, do not influence phone speech channel operating state, need not telephone set, telephone line and family expenses radio-cassette player are done any change, can also eliminate that ambient noise, self-excitation are uttered long and high-pitched sounds, the power frequency clutter interference, and need not extra power.The utility model is simple in structure, and is easy to operate.

Below with reference to embodiment and accompanying drawing thereof the utility model is described in detail.

Fig. 1. the profile schematic diagram of the utility model embodiment concrete structure.

Fig. 2. be the schematic diagram of concrete structure of the electromagnetism pick-up head of the utility model embodiment.

Fig. 3. be the winding wiring figure of the electromagnetism pick-up head of the utility model embodiment.

Fig. 4. be the practical on line schematic diagram of the utility model embodiment.

As Fig. 1. shown in, the profile of the utility model embodiment be one have the lead-in wire 8 and 8 ' and standard twin-core plug 7(φ 3.5mm) flat arc Qian clip, clamp mainly is made of plastics, when while pinching upper clamp 1 and lower clamp 2 left ends, last folder mouthfuls 11 opens, then can with the phone cable along and the straight embedding of the perpendicular direction of clamp length direction on folder mouthfuls 11 and down in the folder mouthful 11 '.Because the flat concave-curve design of folder mouthful employing is so after loosing one's grip, not only can clamp the phone cable but also do not press from both sides bad phone cable.Folder pivot 4 and folder spring 3 are guaranteed upper clamp 1 folding freely.On the following folder mouth 11 ' of lower clamp 2 electromagnetism pick-up head 10 is housed, 10 ' electromagnetism pick-up head 10, coil 16 in 10 ' is identical with physical dimension, structure, line footpath, winding, the number of turn of coil 16 ', wherein one group of end 19,19 ' of the same name directly links, and another organizes end 20 of the same name, 20 ' links by coupling resistance device 9, and the position of electromagnetism pick-up head 10,10 ' on folder down mouthful 11 ' is with respect to folder mouthful 11 ' centre symmetry line 12 ' is asymmetric down.Purpose is differentially to pick up the electromagnetic leakage signal of phone speech channel, and can eliminate the power frequency clutter interference.Electromagnetism pick-up head 10, the 10 ' signal that is picked up is through coupling resistance device 9, lead-in wire 8 and 8 ' and standard twin-core plug 7 output.Lead-in wire 8 and 8 ' is by drawing in the lead-in wire storehouse 6.Lead-in wire storehouse lid 5 is transportable.

Fig. 2. provided the schematic diagram of electromagnetism pick-up head 10,10 ' concrete structure.Electromagnetism pick-up head 10,10 ' structure are identical.Electromagnetism pick-up head 10 is made of shell 13, interior sealing resin 14, magnetic core 15, coil 16 and lead end 17,18.The line footpath representative value of coil 16 is 0.07 millimeter, and the number of turns representative value of coil 16 is 2700 circles, and the representative value of the D.C. resistance of coil 16 is 300 ohm, and the physical dimension representative value of coil 16 is millimeter (wide) * 6,18 millimeters (length) * 8 millimeter (thick).The physical dimension representative value of magnetic core 15 is millimeter (wide) * 3,18 millimeters (length) * 6 millimeter (thick).

Fig. 3. provided electromagnetism pick-up head 10,10 ' winding wiring figure.Coil 16 directly links to each other with one group of end 19,19 ' of the same name of coil 16 '; Another is organized end of the same name 20,20 ' and links to each other by coupling resistance device 9, and is connected to standard twin-core plug 7 by lead-in wire 8 and 8 ' respectively, exports with the collection of finishing telephone signal.Fig. 3. in P be that the representative resistor values of the section signal symbol coupling resistance device 9 of standard twin-core plug 7 is 1000 ohm.

Fig. 4. be the practical on line schematic diagram of the utility model embodiment.This folder formula phone off-line transmitter can be clipped in phone lambda line 21 places, also can be clipped in microphone cord 22 places; The output plug 7 of folder formula phone off-line transmitter is connected to external microphone (MIC) jack of family expenses radio-cassette player.So far, the utility model off-line of finishing telephone signal picks up with noiseless and passes on.Then, the original operation of family expenses radio-cassette player is depended in telephone signal repeating, the related operation that amplifies or record.Therefore, the operation of telephone set, family expenses radio-cassette player is all undertaken by the operational manual of self, need not telephone set and family expenses radio-cassette player are done any change.

Claims (3)

1, upper clamp 1 by folder mouth 11 on the flat camber of having of plastics, have on the flat camber folder mouthfuls 11 ' lower clamp 2, be contained in down folder mouthfuls 11 ' on electromagnetism pick-up head 10,10 ', coupling resistance device 9, lead-in wire 8 and 8 ' and the folder formula phone off-line grass-hopper formed of standard twin-core plug 7, it is characterized in that electromagnetism pick-up head 10,10 ' in coil 16 and coil 16 ' physical dimension, structure, the line footpath, winding, the number of turn is identical, one group of end 19 of the same name wherein, 19 ' directly link, and another organizes end 20 of the same name, 20 ' link by coupling resistance device 9, and electromagnetism pick-up head 10,10 ' following folder mouthfuls 11 ' on the position with respect to folder mouthful a 11 ' centre symmetry line 12 down ' asymmetric.

2,, it is characterized in that telephone signal transfer line 8,8 ' be double-end by coupling resistance device 9 by the folder formula phone off-line grass-hopper of claim 1 regulation.

3,, it is characterized in that telephone signal output twin-core plug 7 is directly to family expenses radio-cassette player external microphone (MIC) socket by the folder formula phone off-line grass-hopper of claim 1 regulation.

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