CN201518511U - Radio set - Google Patents
Radio set Download PDFInfo
- Publication number
- CN201518511U CN201518511U CN 200920133571 CN200920133571U CN201518511U CN 201518511 U CN201518511 U CN 201518511U CN 200920133571 CN200920133571 CN 200920133571 CN 200920133571 U CN200920133571 U CN 200920133571U CN 201518511 U CN201518511 U CN 201518511U
- Authority
- CN
- China
- Prior art keywords
- tuner
- decoding
- broadcast receiver
- audio
- audio frequency
- 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
- Circuits Of Receivers In General (AREA)
Abstract
The utility model is suitable for the technical field of digital broadcasting, and provides a radio set which comprises the following components: a tuner, a decoding and control module connected with the tuner, a memory, an audio amplifier, a pushbutton and an LED display, wherein the memory, the audio amplifier, the pushbutton and the LED display are connected with the decoding and control module. According to the utility model, the radio set uses a cable network of digital television for receiving the digital broadcasting program. Compared with a set-top box, the radio set has the advantages of lowered cost, lowered power consumption, reduced product volume and convenient carrying as a video function circuit is saved.
Description
Technical field
The utility model belongs to the technical field of digital broadcasting, relates in particular to a kind of broadcast receiver.
Background technology
Broadcast receiver is extensive use of by people as a kind of electronic equipment, for people's life has brought unlimited enjoyment.Traditional broadcast receiver receives the broadcast program with radio signal propagation, but atrocious weather usually can influence wireless receptivity, and the broadcast program quantity that causes broadcast receiver to receive is few, and tonequality is not high.
Now, China has begun to promote widely Digital Television, utilize the Digital Television cable network, set-top box not only can receive abundant digital television program, and can receive free digital broadcast program, but digital cable customers utilizes the set-top box TV reception mostly, and for the user of the program of wanting to listen to the radio programme, use set-top box not only cost height, power consumption height, nor be convenient to carry.
The utility model content
The purpose of this utility model is to provide a kind of broadcast receiver, and be intended to solve present digital broadcast program receiving equipment and have cost height, power consumption height, nor the problem of being convenient to carry.
The utility model is achieved in that a kind of broadcast receiver, and it comprises:
The tuner that is connected with the Digital Television cable network, the digital TV broadcast signal that described Digital Television cable network is propagated carries out low noise amplification, filtering and frequency conversion, converts intermediate-freuqncy signal output to;
Be connected with described tuner, the intermediate-freuqncy signal of described tuner output be treated to the decoding and the control module of audio signal output; And
The memory, audio frequency amplifier, button and the light-emitting diode display that are connected with control module with described decoding.
In the said structure, described decoding and control module are decoding and control chip, and described decoding and control chip comprise:
The demodulator that is connected with described tuner carries out the intermediate-freuqncy signal of described tuner output mould/number conversion, demodulation, deinterleaves, after the Reed-Solomon decoding, is converted to the transmission code stream that meets Moving Picture Experts Group-2;
The demodulation multiplexer that is connected with described demodulator, the transmission code stream that described demodulator is exported resolves into single program stream, and then program stream is decomposed into audio frequency elementary stream, video elementary code stream and exclusive data elementary stream;
The audio decoder that is connected with described demodulation multiplexer is reduced into voice data after the audio frequency elementary stream of described demodulation multiplexer output decoded;
The audio frequency D/A that is connected with described audio decoder, the voice data that described audio decoder is exported is converted to stereo audio signal output; And
By internal bus, the central controller that is connected with described demodulator, demodulation multiplexer, audio decoder and audio frequency D/A respectively.
In the said structure, described memory comprises the internal memory of storing data and the flash memory of stored program instruction and channel parameter.
In the said structure, described central controller is connected with flash memory with described internal memory respectively by external bus.
In the said structure, described central controller is connected with described tuner by the I2C bus.
In the said structure, described central controller is connected with described audio frequency amplifier, button and light-emitting diode display respectively by general input/output port.
In the utility model, broadcast receiver utilizes Digital Television cable network receiving digital broadcast program, and this broadcast receiver is compared with set-top box, owing to saved the video capability circuit, thus reduced cost and power consumption, and reduced small product size, be convenient to carry.
Description of drawings
Fig. 1 is the wireless structure chart that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the wireless structure that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model.
Broadcast receiver comprises the tuner 100 that is connected with the Digital Television cable network, the digital TV broadcast signal that 100 pairs of Digital Television cable networks of tuner are propagated carries out low noise and amplifies, filtering and frequency conversion, convert intermediate-freuqncy signal output to, broadcast receiver also comprises decoding and the control module 200 that is connected with tuner 100, its intermediate-freuqncy signal with tuner 100 outputs is treated to audio signal output, broadcast receiver also comprises the audio frequency amplifier 300 that is connected with control module 200 with decoding, button 400, light-emitting diode display 500 and memory, wherein, memory comprises the internal memory 600 of storing data and the flash memory 700 of stored program instruction and channel parameter.
As the utility model one embodiment, decoding is decoding and control chip with control module 200, it comprises demodulator 201, demodulation multiplexer 202, audio decoder 203 and audio frequency D/A 204, demodulator 201 is connected with tuner 100, the intermediate-freuqncy signal of tuner 100 outputs is carried out mould/number conversion, demodulation, deinterleave, after the Reed-Solomon decoding, be converted to the transmission code stream that meets Moving Picture Experts Group-2, demodulation multiplexer 202 is connected with demodulator 201, the transmission code stream of demodulator 201 outputs is resolved into single program stream, and then program stream is decomposed into the audio frequency elementary stream, video elementary code stream and exclusive data elementary stream, audio decoder 203 is connected with demodulation multiplexer 202, be reduced into voice data after the audio frequency elementary stream of demodulation multiplexer 202 output decoded, audio frequency D/A 204 is connected with audio decoder 203, the voice data of audio decoder 203 outputs is converted to stereo audio signal output, decoding also comprises with control chip passes through internal bus, respectively with demodulator 201, demodulation multiplexer 202, the central controller 205 that audio decoder 203 is connected with audio frequency D/A 204, central controller 205 by internal bus to demodulator 201, demodulation multiplexer 202, audio decoder 203 and audio frequency D/A 204 are controlled.
This wireless operation principle is:
Digital TV broadcast signal is propagated with the radiofrequency signal form, behind tuner 100 received RF signals, it is carried out low noise amplifies, filtering and frequency conversion, convert the first intermediate-freuqncy signal I and the second intermediate-freuqncy signal Q of 90 ° of two-way phase phasic differences to, the 201 couples first intermediate-freuqncy signal I of demodulator and the second intermediate-freuqncy signal Q carry out mould/number conversion, demodulation, deinterleave, after the Reed-Solomon decoding, be converted to the transmission code stream that meets Moving Picture Experts Group-2, demodulation multiplexer 202 resolves into single program stream with the transmission code stream of demodulator 201 outputs, and then program stream is decomposed into the audio frequency elementary stream, video elementary code stream and exclusive data elementary stream, audio decoder 203 is reduced into voice data after the audio frequency elementary stream of demodulation multiplexer 202 outputs is decoded, audio frequency D/A 204 is converted to the binaural audio signal with the voice data of audio decoder 203 outputs, and stereo audio signal is amplified the back by audio frequency amplifier 300 and plays.
In the utility model embodiment, broadcast receiver utilizes Digital Television cable network receiving digital broadcast program, and this broadcast receiver is compared with set-top box, owing to saved the video capability circuit, so reduced cost and power consumption, and reduced small product size, be convenient to carry.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. a broadcast receiver is characterized in that, described broadcast receiver comprises:
The tuner that is connected with the Digital Television cable network, the digital TV broadcast signal that described Digital Television cable network is propagated carries out low noise amplification, filtering and frequency conversion, converts intermediate-freuqncy signal output to;
Be connected with described tuner, the intermediate-freuqncy signal of described tuner output be treated to the decoding and the control module of audio signal output; And
The memory, audio frequency amplifier, button and the light-emitting diode display that are connected with control module with described decoding.
2. broadcast receiver as claimed in claim 1 is characterized in that, described decoding and control module are decoding and control chip, and described decoding and control chip comprise:
The demodulator that is connected with described tuner carries out the intermediate-freuqncy signal of described tuner output mould/number conversion, demodulation, deinterleaves, after the Reed-Solomon decoding, is converted to the transmission code stream that meets Moving Picture Experts Group-2;
The demodulation multiplexer that is connected with described demodulator, the transmission code stream that described demodulator is exported resolves into single program stream, and then program stream is decomposed into audio frequency elementary stream, video elementary code stream and exclusive data elementary stream;
The audio decoder that is connected with described demodulation multiplexer is reduced into voice data after the audio frequency elementary stream of described demodulation multiplexer output decoded;
The audio frequency D/A that is connected with described audio decoder, the voice data that described audio decoder is exported is converted to stereo audio signal output; And
By internal bus, the central controller that is connected with described demodulator, demodulation multiplexer, audio decoder and audio frequency D/A respectively.
3. broadcast receiver as claimed in claim 2 is characterized in that, described memory comprises the internal memory of storing data and the flash memory of stored program instruction and channel parameter.
4. broadcast receiver as claimed in claim 3 is characterized in that, described central controller is connected with flash memory with described internal memory respectively by external bus.
5. broadcast receiver as claimed in claim 2 is characterized in that, described central controller is connected with described tuner by the 12C bus.
6. broadcast receiver as claimed in claim 2 is characterized in that, described central controller is connected with described audio frequency amplifier, button and light-emitting diode display respectively by general input/output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920133571 CN201518511U (en) | 2009-07-02 | 2009-07-02 | Radio set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920133571 CN201518511U (en) | 2009-07-02 | 2009-07-02 | Radio set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518511U true CN201518511U (en) | 2010-06-30 |
Family
ID=42499234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920133571 Expired - Fee Related CN201518511U (en) | 2009-07-02 | 2009-07-02 | Radio set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255623A (en) * | 2011-04-21 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Mobile terminal and system for listening to radio by utilizing Bluetooth earphone |
-
2009
- 2009-07-02 CN CN 200920133571 patent/CN201518511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255623A (en) * | 2011-04-21 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Mobile terminal and system for listening to radio by utilizing Bluetooth earphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201087955Y (en) | Digital analog television signal commutation projector | |
| CN103686011A (en) | Television signal receiving module and method | |
| CN102710933B (en) | DTV coding and decoding device and DTV decoding method | |
| CN201518511U (en) | Radio set | |
| CN1980316A (en) | Three-in-one TV set | |
| CN203608308U (en) | Set top box supporting hand-held equipment | |
| CN201450547U (en) | Digital television receiving device | |
| CN107317981B (en) | Channel receiving switching control device and method based on DVB-C and DTMB | |
| CN206364955U (en) | WIFI vehicle-mounted digital television boxes | |
| CN214045854U (en) | Set-top box | |
| CN201608798U (en) | Multifunctional audio player | |
| CN206364956U (en) | WIFI digital television cases | |
| CN1971653A (en) | Remote controller with macro function and TV set using the same | |
| CN212381329U (en) | Television receiver with DVB-T digital signal receiving function | |
| CN209170580U (en) | A kind of KTV plate song-order machine with DVB function | |
| CN201274532Y (en) | Digital analogue integrated television set | |
| CN204538242U (en) | A kind of digital terminal antenna box supporting multiple stage satellite television | |
| CN219420875U (en) | Set top box supporting ATV signal output | |
| CN202353683U (en) | Vehicle-mounted digital television receiver | |
| CN201312355Y (en) | Information source decoding chip for low-power handset television | |
| CN210629669U (en) | Intelligent digital television | |
| CN212381296U (en) | AVS + professional satellite television receiver supporting double-rotation-code output | |
| CN204362062U (en) | Multi-functional RDS meets an urgent need digital power amplifier enlarger | |
| CN103731713A (en) | Television signal receiving system and method | |
| CN201307896Y (en) | Mobile digital television device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |