CN2425462Y

CN2425462Y - Cordless telephone set capable of receiving television audio

Info

Publication number: CN2425462Y
Application number: CN 00232774
Authority: CN
Inventors: 蒋昌华
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-03-28
Anticipated expiration: 2010-05-11

Abstract

The utility model discloses a cordless telephone set with receiving television sound, comprising a handset and a telephone set, wherein, the telephone set is provided with a microprocessor, an audio frequency processing circuit, and a transmitting circuit; the handset is connected with the telephone set by radio waves which are generated by the transmitting circuit. The utility model is characterized in that the telephone set is also provided with a television sound input socket and an electronic switch; an input end of the electronic switch is connected with the television sound input socket, an output end is connected with the audio frequency processing circuit, and a control end is connected with the microprocessor. The utility model can realize to receive television sound with the cordless telephone, and overcome the defects that the distances of earphones with wire are short, infrared earphones can pass by obstacles, and loudspeakers of TVs influence other persons.

Description

Can receive the cordless telephone of television field frame

The utility model relates to a kind of cordless telephone that receives television field frame.

Listen television field frame that following several method is arranged at present: the one, the loudspeaker output of television set own; The 2nd, wired earphone is inserted television set earphone output socket (TV that has does not have this function), to answer by wired earphone, can disconnect the loudspeaker of television set own this moment; The 3rd, television set transmits sound accompaniment by infrared, receives with infrared receiver, gives wired earphone through amplification and answers.

In daily life, people usually can run into following problem:

Under small space, oneself want to see that TV (wants listening certainly! ), the next door has people or work again, or has a rest, or study, and oneself have to transfer sound very for a short time, so that oneself all do not hear sometimes, feels very worried, in order not influence other people, have to turn off TV.Sometimes people are inconvenient to see television image because of other work of do-it-yourself, and think very much a tin topic of oneself being concerned about, as news, and match of an excellence or the like, just present technology does not also have this contradiction of fine solution, has no idea, and have to abandon.

Solve above contradiction, can't effectively solve, turn the volume of TV own down, think oneself not hear, still can impact the bystander with the present television field frame method of listening; Insert television set earphone output socket with wired earphone and listen, because of the earphone cord limited length, it is very inconvenient that people can feel; Use earphone receiving again with the infrared receiver reception, because of infrared ray is that straight line transmits, can not there be obstacle the centre, has direction, problems such as angle and other object blocking-up.

The purpose of this utility model is exactly in order to overcome the above problems, and a kind of cordless telephone that receives television field frame is provided, and neither influences other people when listening to, and is unrestricted again, can freely walk about in the room.

The utility model realizes that the scheme of above-mentioned purpose is: a kind of cordless telephone that receives television field frame comprises mobile phone and base, microprocessor, audio frequency processing circuit and radiating circuit are arranged on the base, mobile phone and base link by the radio wave that radiating circuit sends, it is characterized in that: on base, also be provided with television field frame input socket and electronic switch, the input of described electronic switch links to each other with television field frame input socket, output links to each other with audio frequency processing circuit, and control end links to each other with microprocessor.

Adopt the beneficial effect of above scheme: having only base and television set during owing to use is to pass through wired connection, and mobile phone directly is not connected with television set, mobile phone and base are again to communicate with radio wave, so be not subjected to the restriction of tone frequency channel wire length when listening to, owing to the diffraction of radio wave, can in different rooms, answer simultaneously.

Fig. 1 is cordless telephone embodiment one schematic diagram that the utility model can receive television field frame.

Fig. 2 is cordless telephone embodiment two schematic diagrames that the utility model can receive television field frame.

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

Embodiment sees Fig. 1, shown in can receive television field frame cordless telephone comprise mobile phone and base, microprocessor, audio frequency processing circuit and radiating circuit are arranged on the base, mobile phone and base link by the radio wave that radiating circuit sends, it is characterized in that: on base, also be provided with television field frame input socket and electronic switch, the input of described electronic switch links to each other with television field frame input socket, and output links to each other with audio frequency processing circuit, and control end links to each other with microprocessor.

The control electronic switch " is opened ", the control button of " pass " can be arranged on the base, but also can be arranged on the mobile phone.If be located on the mobile phone, then " opening ", " pass " signal of being sent of television field frame on/off button will link to each other with the mobile phone radiating circuit, and then links to each other with the base microprocessor by radio wave.Also receiver J-Horner can be set on the mobile phone, so just not need mobile phone is taken, can hang on one's waist and to be installed in the pocket, and listen to earphone.

Electronic switch comprises a triode Q2 among Fig. 1, and its base stage meets microprocessor control end P by resistance R 3, and collector electrode is connected to audio input end by resistance R 2, capacitor C 2, and emitter connects audio frequency processing circuit.

Embodiment two: see Fig. 2, this example and embodiment one difference are that its electronic switch selects for use integrated circuit to realize that switch chip IC1 is CD4066 among Fig. 2.Its 1st pin connects the television field frame input by resistance R 1, capacitor C 1.When the P of microprocessor mouth provided high level (voltage is greater than 2.0V), promptly 13 pin of IC1 were high level, and 1,2 pin of IC1 are connected, and audio signal is just delivered to audio frequency processing circuit.When the P of microprocessor mouth provided low level (voltage is less than 0.7V), promptly 13 pin of IC1 were low level, and 1,2 pin of IC1 disconnect, and audio signal is not delivered to audio frequency processing circuit.

Answer television field frame with cordless telephone, the recipient is not to restriction, and the barrier in the middle of walking around needs only in the effective scope of application of cordless telephone, and the hearer can arbitrarily walk about, and can both better answer.

Answer television field frame with cordless telephone, cost is low, on the basis of former cordless telephone, just can realize as long as increase a little cost.During use television picture quality is not almost had influence, do not influence the normal use of cordless telephone yet.

The frequency that cordless telephone uses is the frequency that State Radio Regulatory Commission's regulation is used, and uses cordless telephone to answer television field frame, does not take other frequency resources.What cordless portable part work was used is rechargeable battery, and the rechargeable battery use of can charging repeatedly so just can be saved use cost.

Claims

1. cordless telephone that can receive television field frame, comprise mobile phone and base, microprocessor, audio frequency processing circuit and radiating circuit are arranged on the base, mobile phone and base link by the radio wave that radiating circuit sends, it is characterized in that: on base, also be provided with television field frame input socket and electronic switch, the input of described electronic switch links to each other with television field frame input socket, and output links to each other with audio frequency processing circuit, and control end links to each other with microprocessor.

2. the cordless telephone that receives television field frame as claimed in claim 1, it is characterized in that: on mobile phone, be provided with receiver J-Horner and television field frame on/off button, the signal that television field frame on/off button is sent links to each other with the mobile phone radiating circuit, and then links to each other with the base microprocessor by radio wave.