CN201001152Y

CN201001152Y - Device for TV set to mute automatically when the fixing telephone is on talking

Info

Publication number: CN201001152Y
Application number: CNU2007200622518U
Authority: CN
Inventors: 崔志春
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-22
Filing date: 2007-01-22
Publication date: 2008-01-02
Anticipated expiration: 2017-01-22

Abstract

The utility model discloses telephone mute device during a telephone talk. The circuit output terminal of a voltage comparator is respectively connected with the input terminals of an advancing edge triggering circuit and a falling edge triggering circuit, the output terminals of the advancing edge triggering circuit and the falling edge triggering circuit are connected with the input terminal of a time delay circuit, the output terminal of the time delay circuit is connected with the input terminal of an universal remote control circuit, and the output terminal of the universal remote control circuit is connected with a infrared transmitting circuit. The utility model has the advantages that when a television viewer makes an out-going phone call with a telephone or receives an in-going call, the viewer can turn the sound of the telephone to the mute state or turn down, to create a quiet talking space, and when the talk is finished, the sound of the telephone is turned back to the original state, therefore the operation is very convenient.

Description

The device of television set automatic mute during the landline telephone conversation

Technical field

The device of mute of television set when the utility model relates to the conversation of a kind of landline telephone.

Background technology

People are when watching TV programme at present, if call with landline telephone, in order not allow television acoustics influence conversation, will look for remote controller television acoustics to be turned or is transferred to down mute state, and when particularly receiving incoming call suddenly, the hasty remote controller of looking for television acoustics to be turned or is transferred to down mute state, sometimes because television sound volume when big, even can't hear the tinkle of bells of incoming call, do not receive phone, and cause delay.

The utility model content

The purpose of this utility model provides a kind of device that uses landline telephone when conversation television set automatic mute.

The purpose of this utility model realizes in the following way: the device of television set automatic mute when a kind of landline telephone is conversed, the voltage comparator circuit output connects the input of rising edge circuits for triggering and trailing edge circuits for triggering respectively, the input of the output termination delay circuit of rising edge circuits for triggering and trailing edge circuits for triggering, the input of the omnipotent remote control circuit of output termination of delay circuit, the output termination infrared transmitter of omnipotent remote control circuit.

The utlity model has following beneficial effect, when fixedly making a phone call at the human of watching TV programme or landline telephone when incoming call, the sound equipment of television set can be transferred to mute state or turn down, create quiet conversation space to you, behind end of conversation, the sound equipment of television set returns to original state again, and it is convenient to be suitable for very much.

Description of drawings

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is that the utility model uses line graph;

Embodiment

As shown in Figure 1, the device of television set automatic mute when a kind of landline telephone is conversed, the voltage comparator circuit output connects the input of rising edge circuits for triggering and trailing edge circuits for triggering respectively, the input of the output termination delay circuit of rising edge circuits for triggering and trailing edge circuits for triggering, the input of the omnipotent remote control circuit of output termination of delay circuit, the output termination infrared transmitter of omnipotent remote control circuit.

As shown in Figure 2, the input of the voltage comparator of the device of television set automatic mute when the telephone set outside line is connected telephone set and landline telephone conversation, the voltage comparator circuit output connects the input of rising edge circuits for triggering and trailing edge circuits for triggering respectively, the input of the output termination delay circuit of rising edge circuits for triggering and trailing edge circuits for triggering, the input of the omnipotent remote control circuit of output termination of delay circuit, the output termination infrared transmitter of omnipotent remote control circuit, the infrared emission tube of infrared transmitter is aimed at the infrared ray receive window of television set.

Operation principle of the present utility model: the telephone set outside line is connected the input of telephone set and voltage comparator, when the telephone set off-hook, the lasting high level that the output of voltage comparator circuit will obtain, detect the off-hook and the on-hook signal of telephone set respectively by rising edge circuits for triggering and trailing edge circuits for triggering, determine the ultrared time value of each emission by delay circuit, in the time corresponding section, send quiet accordingly/recovery instruction again by omnipotent remote control circuit, drive infrared transmitter emission infrared control signal, infrared system by television set itself receives this signal, recovers the function of television set sound equipment in the period of promptly having realized receiving calls after television set automatic mute and the telephone set on-hook automatically.

Claims

The device of television set automatic mute when 1, a kind of landline telephone is conversed, it is characterized in that: the voltage comparator circuit output connects the input of rising edge circuits for triggering and trailing edge circuits for triggering respectively, the input of the output termination delay circuit of rising edge circuits for triggering and trailing edge circuits for triggering, the input of the omnipotent remote control circuit of output termination of delay circuit, the output termination infrared transmitter of omnipotent remote control circuit.