CN2534740Y - Network telephone - Google Patents

Abstract

The utility model discloses a network phone, which consists of a phone, an audio frequency input wire and a microphone output wire, both of which connect the phone and a computer. The phone consists of a handset and a phone pedestal. The handset is equipped with the microphone and an earphone, and the pedestal is equipped with a conversion circuit for the handset and an external sound box. The phone is capable of clear communication with little sound distortion within a local area network or a wide area network (generally with the band width of 64kbit/s). Although delaying exists but the delaying is quick short, and one can be accustomed to the delaying easily. Meanwhile, no whistling is caused when the volume of the sound box and the headset is appropriate.

Description

A kind of networking telephone

Technical field

The utility model relates to a kind of computer network dedicated voice equipment, refers in particular to a kind of networking telephone.

Background technology

At present by local area network (LAN) or wide area network, by means of the integrated information interactive software under computer and some operating system, utilize speech ciphering equipments such as audio amplifier that computer carries and microphone, can realize in the local area network (LAN) or the speech exchange between two users in the wide area network.But this method exists the deficiency of three aspects: the one, when the other side sent a telegram here, voice will expand by audio amplifier released, make the talk become broadcasting and divulge a secret; The 2nd, resonance very easily occurs between audio amplifier and the microphone and produce and utter long and high-pitched sounds, cause the health of noise pollution environment and human body; The 3rd, when using headset, the end user must often be with earphone, otherwise will can't hear electric bell sound, brings great inconvenience to the user.

Summary of the invention

That the purpose of this utility model provides and a kind ofly do not produce resonance, maintains secrecy is effective, do not produce the networking telephone of uttering long and high-pitched sounds.

The purpose of this utility model is achieved in that it is by phone and connect phone and the audio frequency incoming line and the microphone output line of computer are formed, phone is made up of talking handle and phone base, be provided with microphone and earphone in the talking handle, be provided with talking handle and extraneous audio amplifier change-over circuit in the phone base, the handle conversation is a pair of selector switch with extraneous audio amplifier change-over circuit, its input is connected with the audio signal incoming line that is picked out by computer sound card, in two pairs of outputs of selector switch, one is docked to the external speaker jack, and another is docked to the talking handle earphone; Microphone output line one end links to each other with the microphone of talking handle, and the other end is linked the microphone jack on the computer sound card.

Audio frequency incoming line and microphone output line are audio frequency private mask line.

The power of the earphone in the talking handle is 0.25-0.5W.

The technological progress that the utility model is obtained is: adopt structure of the present utility model, when the user did not receive calls, the expansion playing function that audio amplifier can be brought into normal play made the user can hear the tinkle of bells of remote call-in, local simultaneously microphone conductively-closed is unlikely to produce and utters long and high-pitched sounds; When the user received calls, audio amplifier was cut off, and the user uses handle type receiver and microphone, guaranteed the privacy of conversation, simultaneously because the volume of earphone is less, not can and microphone between produce and utter long and high-pitched sounds.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among Fig. 1,1. being the microphone output line, 2. is the L channel incoming line, 3. is the R channel incoming line, 4. is selector switch, 5. is the external speaker jack, 6. is the phone base, 7. is microphone, 8. is talking handle, 9. is earphone.

Embodiment

As shown in Figure 1, the present networks phone is made up of the audio frequency incoming line and the microphone output line (1) of phone and connection phone and computer, the audio frequency incoming line comprises L channel incoming line (2) and R channel incoming line (3), phone is made up of talking handle (8) and phone base (6), be provided with microphone (7) and earphone (9) in the talking handle, phone base (6) lining is provided with talking handle and extraneous audio amplifier change-over circuit, the handle conversation is a pair of selector switch (4) with extraneous audio amplifier change-over circuit, its input is connected with the audio signal incoming line that is picked out by computer sound card, in two pairs of outputs of selector switch, one is docked to external speaker jack (5), and another is docked to talking handle earphone (9); Microphone output line (1) one end links to each other with the microphone of talking handle (8), and the other end is linked the microphone jack on the computer sound card; Audio frequency incoming line and microphone output line (1) are audio frequency private mask line; The power of the earphone in the talking handle is 0.25-0.5W.When the user did not receive calls, talking handle (8) put down, and pressed selector switch (4), and audio input signal is transferred to external speaker jack (5), finished the enlarging function of voice signal by external speaker.Simultaneously, because talking handle this moment (8) is placed on the phone base (6), microphone (7) sound transmission aperture is covered by the plane that base pastes mutually, make it not can and audio amplifier between produce resonance.When the user receives calls, pick up talking handle (8), selector switch (4) is upspring, and audio input signal is transferred to handle earphone (9).Do not have audio signal to deliver to external speaker this moment.The use of this device is striden on the computer of wide area network at Liang Tai, and type is Lenovo Qitian 2000 (being configured to the 6C/900/128M internal memory), and operating system is Win98, the Netmeeting that session applications Win98 carries; Network condition is: bandwidth 64kbit/s.This moment, both sides' communication effect sound was clear, can realize suitable volume easily by the volume control switch that operating system carries, and time-delay is arranged during use slightly, but was easy to adapt to.

Claims (3)

1, a kind of networking telephone, it is made up of the audio frequency incoming line and the microphone output line of phone and connection phone and computer, phone is made up of talking handle and phone base, be provided with microphone and earphone in the talking handle, be provided with talking handle and extraneous audio amplifier change-over circuit in the phone base, it is characterized in that: described handle conversation is a pair of selector switch with extraneous audio amplifier change-over circuit, its input is connected with the audio signal incoming line that is picked out by computer sound card, in two pairs of outputs of selector switch, one is docked to the external speaker jack, and another is docked to the talking handle earphone; Microphone output line one end links to each other with the microphone of talking handle, and the other end is linked the microphone jack on the computer sound card.

2, the networking telephone according to claim 1 is characterized in that: described audio frequency incoming line and microphone output line are audio frequency private mask line.

3, the networking telephone according to claim 1 is characterized in that: the power of the earphone in the described talking handle is 0.25-0.5W.

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