CN2449305Y - Radio frequency converter for video game machine - Google Patents
Radio frequency converter for video game machine Download PDFInfo
- Publication number
- CN2449305Y CN2449305Y CN 00240143 CN00240143U CN2449305Y CN 2449305 Y CN2449305 Y CN 2449305Y CN 00240143 CN00240143 CN 00240143 CN 00240143 U CN00240143 U CN 00240143U CN 2449305 Y CN2449305 Y CN 2449305Y
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- CN
- China
- Prior art keywords
- game machine
- circuit
- signal
- frequency
- earphone
- 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
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model relates to a radio frequency converter for a game machine, which is characterized in that an audio signal and a video signal of the game machine are modulated into an RF (radio frequency) signal by a transmitting device, the RF signal is transmitted to a television set after the RF signal is received by a receiving device. The utility model adopts a wireless transmitting method and a wireless receiving method, so people can play a game at a long distance, and the utility model improves a plurality of inconvenience brought by wire connection. Simultaneously, the people can play the game under the condition of wearing earphones, the people not only can enjoy the music which is prepared with the game but also does not affect other people's living and learning.
Description
The utility model belongs to the parts that use on the game machine, relates in particular to the less radio-frequency converter of game machine.
Operating video games, is that teenager even adult like the project of playing.Traditional game machine all is to join by wired video and audio cable and televisor, the game keys in the operator, and game picture appears in TV screen, the music of the preparation of the audio amplifier of TV output simultaneously.Along with the appearance of large screen television, closely play games and can hinder eyes, just can make the people feel comfortable playing games more at a distance, if the audio frequency and video line that unrestrictedly extends is unrealistic again; The preparation music of playing games simultaneously also can influence other people life study.
The purpose of this utility model is exactly in order to address the above problem, and a kind of less radio-frequency converter of game machine is provided.
The utility model is achieved in that the Voice ﹠ Video signal of game machine is modulated into emission of radio frequency signals through emitter, is input to televisor after being received by receiving trap.
This reality is novel to be made up of emitter and receiving trap, emitter is assembled by transmitter, emitting antenna, earphone, video and audio cable, establish earphone socket on the transmitter, game machine is connected by video and audio cable with transmitter, receiving trap is assembled by receiver, receiving antenna, TV output line, and receiver is connected by the TV output line with televisor.
The emitter of the utility model by the less radio-frequency converter to the radio frequency carrier frequency, launched the video of game machine and voice modulation by antenna, receiving trap to televisor, demodulates the pictures and sounds of former game machine with radio signal transmission by televisor.After the earphone socket of emitter plugs in the earphone, can monitor the sound of game machine output and cut off the audio modulation signal of radio frequency converter, make the output of televisor voiceless sound.Owing to adopt wireless transmit and reception, realized playing games more at a distance, improved the inconvenience that wired connection is brought; Can play games wearing under the situation of earphone again simultaneously, can appreciate the music of recreation preparation, also can not influence other people life study.
Fig. 1 is a composition synoptic diagram of the present utility model;
Fig. 2 is the fundamental diagram of emitter;
Fig. 3 is the circuit theory diagrams of emitter;
Fig. 4 is the fundamental diagram of receiving trap;
Fig. 5 is the circuit theory diagrams of receiving trap.
Describe in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the less radio-frequency converter of game machine, form by emitter and receiving trap, emitter comprises transmitter 10, emitting antenna 11, earphone 12, video and audio cable 13, establish earphone socket 14 on the transmitter 10, game machine 1 is connected by video and audio cable 13 with transmitter 10, and receiving trap comprises receiver 20, receiving antenna 21, TV output line 22, and receiver 20 is connected by TV output line 22 with televisor 2.
As shown in Figure 2, transmitter 10 is made up of earphone amplifying circuit, stereo modulation circuit, radio frequency change-over circuit, send the stereo modulation circuit to modulate from the sound signal that game machine comes out through the earphone amplifying circuit, send the radio frequency change-over circuit to launch again.
The AV signal is the sound signal (A) and the vision signal (V) of game machine output, and quality of signals depends on signal source itself fully, promptly depends on the quality of game machine and CD itself, and the image of Hi-Fi sound and high definition be arranged.
As shown in Figure 3, the earphone amplifying circuit is connected to form by triode (N7, N8) and jackswitch (CZ1) etc., and this circuit is amplified to 15-20dB to the sound signal in the game machine, is enough to promote earphone and produces required acoustics.When needs are watched on TV and are listened to, pull out headset plug, jackswitch CZ1 closure, sound signal enters the stereo modulation circuit; When needs are used headphone monitor sound, the plug that plugs in the earphone, at this moment jackswitch disconnects, and sound signal is sent to earphone speaker.
The stereo modulation circuit is connected to form by chip IC 1, triode N6 etc., after this circuit carries out pre-service with two signals an of left side (L), right (R) sound channel, in chip IC 1 inner and 38KHz oscillation frequency process time-division and modulation, become a modulated composite signal, send the radio frequency change-over circuit to modulate once more after mixing through triode N6 again.
The radio frequency change-over circuit is by triode (N1 ~ N5) wait circuit to form, this circuit contains two source oscillation signals, one is the television field frame CF signal, form by triode N1, transtat T1, another is the radio frequency CF signal, be made up of triode (N2, N3) and channel button SW1, the radio frequency carrier frequency is chosen a certain to two fixing frequencies (this device is determined two frequencies, by channel button SW1 adjusting) in the TV band scope.The stereo modulation signal is modulated on the sound carrier frequency once more, is modulated on the rf frequency with vision signal (V) again then, after triode (N4, N5) amplifies, is gone out by antenna transmission at last.
As shown in Figure 4, receiver is made of impedance matching box, frequency characteristic translation circuit, and the rf modulated signal that wireless receiving gets off is through impedance matching box, signal is delivered to the antenna input of televisor, the rf modulated signal demodulation is reduced into sound and image by TV set circuit.Be sent on CATV (cable television) (CATV) subscribers feeder in order to reduce the signal that receives, impedance matching box connects to have is with frequency characteristic translation circuit logical and band resistance characteristic, the effect of frequency characteristic translation circuit is, present band resistance characteristic by the TV end to the frequency signal of CATV end, be that signal attenuation is very big, and, guaranteed CATV signal transmission attenuation minimum to the signal of TV end, presenting bandpass characteristics by CATV.
As shown in Figure 5, impedance matching box B is universal, is formed by inductance serial connection, and impedance matching box B is that 300 Ω convert 75 Ωs required with television tuner input impedance to antenna impedance, makes reliablely and stablely received signal of TV.The frequency characteristic translation circuit by electric capacity (C1, C2, C3, C4), inductance (L1, L2, L3, L4, L5, L6) serial connection form, frequency characteristic translation circuit one end and impedance matching box B and connect the back and TV join, the frequency characteristic translation circuit other end and CATV wire signal input end join.When the cable TV signal (CATV) of this frequency band of television reception, (the frequency high-pass characteristic of L4～L6) form has significantly reduced the frequency signal string to wire user because of electric capacity in the impedance operator translation circuit (C3, C4) and inductance.When televisor received the CATV wire signal, (L1～L3) and above-mentioned high pass characteristic composition made TV watching normal to the useful bandpass shape of TV band for electric capacity (C1, C2) and inductance.
Claims (7)
1, a kind of less radio-frequency converter of game machine is characterized in that the Voice ﹠ Video signal of game machine is modulated into emission of radio frequency signals through emitter, is input to televisor after being received by receiving trap.
2, the less radio-frequency converter of game machine according to claim 1, it is characterized in that forming by emitter and receiving trap, emitter is assembled by transmitter, emitting antenna, earphone, video and audio cable, establish earphone socket on the transmitter, game machine is connected by video and audio cable with transmitter, receiving trap is assembled by receiver, receiving antenna, TV output line, and receiver is connected by the TV output line with televisor.
3, the less radio-frequency converter of game machine according to claim 1, it is characterized in that transmitter is made up of earphone amplifying circuit, stereo modulation circuit, radio frequency change-over circuit, send the stereo modulation circuit to modulate from the sound signal that game machine comes out through the earphone amplifying circuit, send the radio frequency change-over circuit to launch again.
4, the less radio-frequency converter of game machine according to claim 1, it is characterized in that the earphone amplifying circuit is connected to form by triode (N7, N8) and jackswitch CZ1 etc., this circuit is amplified to 15-20dB to the sound signal in the game machine, is enough to promote earphone and produces required acoustics.When needs are watched on TV and are listened to, pull out headset plug, jackswitch CZ1 closure, sound signal enters the stereo modulation circuit; When needs are used headphone monitor sound, the plug that plugs in the earphone, at this moment jackswitch disconnects, and sound signal is sent to earphone speaker.
5, the less radio-frequency converter of game machine according to claim 1, it is characterized in that the stereo modulation circuit is connected to form by chip IC 1, triode N6 etc., after this circuit carries out pre-service with two signals an of left side (L), right (R) sound channel, in chip IC 1 inner and 38KHz oscillation frequency process time-division and modulation, become a modulated composite signal, send the radio frequency change-over circuit to modulate once more after mixing through triode N6 again.
6, the less radio-frequency converter of game machine according to claim 1, it is characterized in that the radio frequency change-over circuit is by triode (N1～N5) wait circuit to form, this circuit contains two source oscillation signals, one is the television field frame CF signal, form by triode N1, transtat T1, another is the radio frequency CF signal, form by triode N2, N3 and channel button SW1, the radio frequency carrier frequency is chosen a certain to two fixing frequencies (this device is determined two frequencies, by channel button SW1 adjusting) in the TV band scope.The stereo modulation signal is modulated on the sound carrier frequency once more, is modulated on the rf frequency with vision signal (V) again then, after triode N4, N5 amplify, is gone out by antenna transmission at last.
7, the less radio-frequency converter of game machine according to claim 1, it is characterized in that receiver is made of impedance matching box, frequency characteristic translation circuit, frequency characteristic translation circuit one end and impedance matching box also connect the back and join with TV, and the frequency characteristic translation circuit other end and CATV wire signal input end join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240143 CN2449305Y (en) | 2000-11-03 | 2000-11-03 | Radio frequency converter for video game machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240143 CN2449305Y (en) | 2000-11-03 | 2000-11-03 | Radio frequency converter for video game machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2449305Y true CN2449305Y (en) | 2001-09-19 |
Family
ID=33600846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00240143 Expired - Fee Related CN2449305Y (en) | 2000-11-03 | 2000-11-03 | Radio frequency converter for video game machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2449305Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847315A (en) * | 2011-06-30 | 2013-01-02 | 德信互动科技（北京）有限公司 | Switching supported game interaction system |
| CN105680897A (en) * | 2011-05-31 | 2016-06-15 | 脸谱公司 | Wireless device, wireless communication system and method |
-
2000
- 2000-11-03 CN CN 00240143 patent/CN2449305Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680897A (en) * | 2011-05-31 | 2016-06-15 | 脸谱公司 | Wireless device, wireless communication system and method |
| CN105680897B (en) * | 2011-05-31 | 2017-05-10 | 脸谱公司 | wireless device, wireless communication system and method |
| CN102847315A (en) * | 2011-06-30 | 2013-01-02 | 德信互动科技（北京）有限公司 | Switching supported game interaction system |
| CN102847315B (en) * | 2011-06-30 | 2015-10-28 | 德信互动科技（北京）有限公司 | Support the game interactive system switched |
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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 |