CN2375043Y - TV sound signal radio transmitter - Google Patents
TV sound signal radio transmitter Download PDFInfo
- Publication number
- CN2375043Y CN2375043Y CN99209955U CN99209955U CN2375043Y CN 2375043 Y CN2375043 Y CN 2375043Y CN 99209955 U CN99209955 U CN 99209955U CN 99209955 U CN99209955 U CN 99209955U CN 2375043 Y CN2375043 Y CN 2375043Y
- Authority
- CN
- China
- Prior art keywords
- television
- amplifier
- modulation
- sound signal
- audio signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transmitters (AREA)
Abstract
The utility model relates to a television sound signal radio transmitter. After the sound signal taken out from a television is sent to an audio modulation amplifier 1 through a plug CZ to amplify, the sound signal is amplified by a high frequency oscillator 2 and an amplifier 3, and is sent to air through an antenna AT. Corresponding frequency band of an ordinary radio set is utilized, television programs of any channels can be optionally listened in the mute state of the television, and the sound is not sent out to influence other persons. The utility model has the advantages of utility and simple.
Description
The utility model relates to a kind of attachment device of television set, particularly a kind of television audio signals wireless launcher.
Existing television set is when rating; sound accompaniment usually can be disturbed other people's rest or study; unless adopt quiet rating or utilize the incidental earphone jack of television set and the external earphone of joining is in addition listened to sound accompaniment; but a television set also can only be joined an earphone; and electric wire that will be very long in tow is very inconvenient, can not many people listen to simultaneously.
The purpose of this utility model is to overcome above-mentioned defective and provides a kind of and utilize the corresponding band on the common broadcast receiver can be by the wireless television audio signals wireless launcher of listening to of broadcast receiver.
The purpose of this utility model is achieved in that a kind of television audio signals wireless launcher, comprise housing, television audio signals input plug CZ, it is characterized in that in housing, being associated with a voice modulation amplifier 1 mutually with plug CZ, the output of voice modulation amplifier 1 links with a wireless launcher 4 after a high-frequency generator 2 and amplifier 3 amplifications, and the television audio signals after modulation is amplified is launched.
When using, the utility model only need link to each other with the audio frequency output of television set by audio signal plug CZ, just can just listen to sound accompaniment by broadcast receiver in the TV programme of rating, television set then can be in mute state, thereby has realized disturbing other people to have a rest or the destination of study.
Below make a more detailed description with 1 pair of the utility model in conjunction with the accompanying drawings.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment:
The television audio signals wireless launcher can be made the f-m stereo acoustic signal transmitter, and its physical circuit can be various, can adopt integrated circuit component to take structure, also can adopt cheap resolution element.In the present embodiment, the television audio signals of being obtained by television set inserts the exemplary audio modulated amplifier 1 that is made of coupling capacitor C 1, triode T1, resistance R 1, resistance R 2, resistance R 3 and capacitor C 2, capacitor C 3, C4, inductance L 1 through plug CZ; Through the modulation amplifying signal vibrate through capacitor C 5 and the LC high-frequency generator 2 that constitutes by inductance L 2, capacitor C 6 with by the amplifier 3 that resistance R 4, triode T2 constitute again amplify after, launch through antenna AT again; Conversion TV channel all can be realized quiet the listening to of television set and not influence other people work or study with broadcast receiver by wireless frequency modulation channel arbitrarily this moment.
Claims (2)
1. television audio signals wireless launcher, comprise housing, television audio signals input plug CZ, it is characterized in that in housing, being associated with a voice modulation amplifier (1) mutually with plug CZ, the output of voice modulation amplifier (1) links with a wireless launcher (4) after a high-frequency generator (2) and amplifier (3) modulation amplification, and the television audio signals after modulation is amplified is launched.
2. television audio signals wireless launcher according to claim 1 is characterized in that voice modulation amplifier (1) is made up of the modulation amplifying circuit that coupling electric capacity (C1), triode (T1), resistance (R1), resistance (R2), resistance (R3) and electric capacity (C2, C3), electric capacity (C4), inductance (L1) constitute; The audio signal of amplifying through modulation is again through electric capacity (C5) and enter amplifier (3) vibration that is made of resistance (R4), triode (T2) by the LC high-frequency generator (2) that inductance (L2), electric capacity (C6) constitute and amplify, after antenna (AT) send.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99209955U CN2375043Y (en) | 1999-05-18 | 1999-05-18 | TV sound signal radio transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99209955U CN2375043Y (en) | 1999-05-18 | 1999-05-18 | TV sound signal radio transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2375043Y true CN2375043Y (en) | 2000-04-19 |
Family
ID=34003301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99209955U Expired - Fee Related CN2375043Y (en) | 1999-05-18 | 1999-05-18 | TV sound signal radio transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2375043Y (en) |
-
1999
- 1999-05-18 CN CN99209955U patent/CN2375043Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102149031A (en) | Implementation method and system of mobile phone microphone, and mobile phone | |
| CN2375043Y (en) | TV sound signal radio transmitter | |
| CN100405747C (en) | Radio with interphone | |
| CN201188660Y (en) | Television embedded with wireless sound transmitting device | |
| CN201910841U (en) | Mobile phone microphone system and mobile phone | |
| CN201222732Y (en) | Sound remote controller and audiovisual system matched with the same | |
| CN201571045U (en) | Voice wireless transmission device | |
| CN210123978U (en) | Wireless audio switching equipment | |
| CN201131007Y (en) | Television remote control as well as wireless reflector | |
| CN201629802U (en) | Built-in radio-frequency antenna circuit, radio-frequency transmitting antenna and television | |
| CN2449440Y (en) | Miniature wireless earphone | |
| CN2449438Y (en) | Infrared audio earphone | |
| US20040230332A1 (en) | Blue tooth facility for transmitting stereophonic sounds | |
| CN2331139Y (en) | TV receiver set high-frequency cordless earphone | |
| CN211019228U (en) | Portable radio station public address connecting device | |
| CN2154577Y (en) | Channal unit for radio microphone | |
| US5596649A (en) | Sound concentrator for selectively collecting sound and concentrating and transmitting the collected sound | |
| CN212137921U (en) | Control device and loudspeaker equipment | |
| CN2554871Y (en) | Audio power amplifier of variable output impendance | |
| CN209642949U (en) | The vehicle-mounted balanced device of microphone with wireless audio frequency transmission function | |
| CN201234297Y (en) | Micro wireless earphone, mobile terminal and communication device | |
| CN2574319Y (en) | Improved sound radio transmitting and receiving device for TV set | |
| CN2328144Y (en) | Wireless earphone | |
| SE9901263D0 (en) | Communication system for telephone | |
| CN2248426Y (en) | Micro-wireless earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |