CN101753926A - Television pulse interference eliminating method and television - Google Patents
Television pulse interference eliminating method and television Download PDFInfo
- Publication number
- CN101753926A CN101753926A CN200810218307A CN200810218307A CN101753926A CN 101753926 A CN101753926 A CN 101753926A CN 200810218307 A CN200810218307 A CN 200810218307A CN 200810218307 A CN200810218307 A CN 200810218307A CN 101753926 A CN101753926 A CN 101753926A
- Authority
- CN
- China
- Prior art keywords
- picture tube
- metal shell
- loud speaker
- television set
- television
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000004020 conductor Substances 0.000 claims description 31
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The embodiment of the invention provides a television pulse interference eliminating method, which comprises the following steps: electrically connecting a metal shell of a loudspeaker to the grounding end of a kinescope through a conductive body, and conducting interference signals produced at the metal shell of the loudspeaker by pulse interference signals emitted by the kinescope to the grounding end of the kinescope through the conductive body. The embodiment of the invention also provides a corresponding television. Due to the implementation of the embodiment of the invention, the loss of television data can be effectively prevented.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of television set pulse interference eliminating method and television set.
Background technology
General television set all has data storage, data storage stores some necessary television set data, this data storage is EEPROM (Electrically Erasable Programmable Read Only Memo) (Electrically ErasableProgrammable Read-Only Memory normally, EEPROM), by built-in integrated circuit bus (InterIntegrated Circuit, I2C) total line traffic control.
Data loss problem still can take place in EEPROM in practice; in the machine test that occurs loss of data easily; anode high voltage moment powers on when starting; make the inner reed of picture tube that spark phenomenon inevitably be arranged; find the pulse that disturbs of I2C bus this moment; pulse amplitude can reach+/-more than the 30V; and to finding disturbing pulse in the normal machines test; wave-shape amplitude is about peak-to-peak value 8V; disturbing pulse to EEPROM, therefore causes start moment EEPROM the abnormal situations of work such as loss of data can occur along the I2C bus interference.
Summary of the invention
In view of above-mentioned existing in prior technology problem, a kind of television set pulse interference eliminating method of the embodiment of the invention and television set can reduce the influence of impulse disturbances to EEPROM in the television set, prevent television set loss of data in the TV set EEPROM.
In order to solve the problems of the technologies described above, the embodiment of the invention proposes a kind of television set pulse interference eliminating method, described television set comprises picture tube and loud speaker, and described loud speaker comprises metal shell and the loudspeaker coil in described metal shell, and this method may further comprise the steps:
The metal shell of described loud speaker is electrically connected on the earth terminal of described picture tube by an electric conductor;
The interference signal conductivity that the disturbing pulse signal that described picture tube is sent by described electric conductor produces at the metal shell of described loud speaker is to the earth terminal of described picture tube.
Correspondingly, the embodiment of the invention has also proposed a kind of television set, comprises picture tube, and loud speaker, described loud speaker comprise metal shell and the loudspeaker coil in described metal shell, wherein:
The metal shell of described loud speaker is electrically connected on the earth terminal of described picture tube by an electric conductor, and described electric conductor is used for interference signal conductivity that disturbing pulse signal that described picture tube is sent produces at the metal shell of the described loud speaker earth terminal to described picture tube.
Implement the embodiment of the invention; the metal shell of loud speaker is electrically connected on the earth terminal of picture tube by an electric conductor; the interference signal conductivity that the disturbing pulse signal that picture tube is sent by electric conductor produces at the metal shell of loud speaker is to the earth terminal of picture tube; avoiding interference pulse signal is crosstalked on the circuit board by the lead between loud speaker and the circuit board; influence the operate as normal of EEPROM on the circuit board; thereby protect the television set data among the EEPROM effectively, prevent the television set loss of data.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a television set pulse interference eliminating method flow chart in the embodiment of the invention;
Fig. 2 is the structure chart of television set in the embodiment of the invention.
Embodiment
The embodiment of the invention proposes a kind of television set pulse interference eliminating method and television set, can reduce the influence of disturbing pulse to EEPROM, prevents television set loss of data among the EEPROM.
Below in conjunction with accompanying drawing to the embodiment of the invention do further in detail, clearly explanation.
Fig. 1 shows television set pulse interference eliminating method flow chart in the embodiment of the invention, comprising:
Step 101 is electrically connected on the metal shell of loud speaker by an electric conductor earth terminal of picture tube;
Herein, the earth terminal of picture tube is the ground path of picture tube, and electric conductor is a plain conductor.
During concrete enforcement, general loud speaker all has metal shell, can make the metal shell of loud speaker and the ground path of picture tube be in the electric connection state by the plain conductor with conductive capability.
The interference signal conductivity that step 102, the disturbing pulse signal that described picture tube is sent by described electric conductor produce at the metal shell of described loud speaker is to the earth terminal of described picture tube.
Herein, for example when using LV71002 Sanyo rear end image processing and scanning chip, because there is not soft starting circuit, it is very fast to cause the picture tube anode high pressure to power on, power-on time is 16ms only, because power-on time is short, the inner reed generation of picture tube spark phenomenon, the interference spike that spark phenomenon causes is to radiation all around, find during actual test that this disturbing pulse can sense on the Inside coil of loud speaker, lead by loud speaker and circuit board is crosstalked into EEPROM on the circuit board again, causes start moment EEPROM the abnormal situations of work such as loss of data can occur.In the present embodiment, the loud speaker of television set and television picture tube distance is more approaching during in view of practical application, and the disturbing pulse signal is produced by television picture tube, utilize television picture tube ground path diversion disturbing pulse signal can avoid interference pulse signal miscellaneous part is produced interference, therefore adopt the earth terminal that the metal shell of loud speaker is electrically connected on picture tube by an electric conductor, this electric conductor can be plain conductor, because the metal shell of TV loudspeaker is in the electric connection state with the ground path of the picture tube of television set, this metal shell is equivalent to an electrostatic shielding cover with Relative Zero current potential, can shield the disturbing pulse signal that disturbs the spike signal and sense by the ground path diversion of television picture tube, thereby avoid interference circuit that pulse signal links to each other with circuit board by loud speaker and be crosstalked into EEPROM on the circuit board, prevent that the television set data among the EEPROM from causing loss of data because of the interference of disturbing pulse signal.
Fig. 2 shows the structure chart of television set in the embodiment of the invention, comprises picture tube 21, and loud speaker 22, electric conductor 23, picture tube comprise the earth terminal 211 of picture tube, and loud speaker 22 comprises metal shell 221 and the loudspeaker coil 222 in metal shell 221, wherein:
The metal shell 221 of loud speaker 22 is electrically connected on the earth terminal 211 of picture tube 21 by an electric conductor 23, and electric conductor 23 is used for interference signal conductivity that disturbing pulse signal that picture tube 21 is sent produces at the metal shell 221 of loud speaker 22 earth terminal 211 to picture tube 21.
Herein, the earth terminal 211 of picture tube 21 is the ground path of picture tube 21, can make the metal shell 221 of loud speaker 22 and the ground path of picture tube 21 be in the electric connection state by the electric conductor 23 with conductive capability, electric conductor 23 can be plain conductor in the specific implementation.In the actual use of television set, for example when using LV71002 Sanyo rear end image processing and scanning chip, because there is not soft starting circuit, it is very fast to cause picture tube 21 anode high voltages to power on, power-on time is 16ms only, because power-on time is short, picture tube 21 inner reed generation spark phenomenons, the interference spike that spark phenomenon causes is to radiation all around, find during actual test that this disturbing pulse can sense on the Inside coil 222 of loud speaker 22, lead by loud speaker 22 and circuit board is crosstalked into EEPROM on the circuit board again, causes start moment EEPROM the abnormal situations of work such as loss of data can occur.In the present embodiment, the loud speaker 22 of television set is more approaching with television picture tube 21 distances during in view of practical application, and the disturbing pulse signal is produced by television picture tube 21, utilize television picture tube 21 ground path diversion disturbing pulse signals can avoid interference pulse signal miscellaneous part is produced interference, adopt the ground path that the metal shell 221 of loud speaker 22 is electrically connected on picture tube 21 by a plain conductor during therefore concrete enforcement, because the metal shell 221 of TV loudspeaker 22 is in the electric connection state with the ground path of the picture tube 21 of television set, this metal shell 221 is equivalent to an electrostatic shielding cover with Relative Zero current potential, can shield the disturbing pulse signal that disturbs the spike signal and sense by the ground path diversion of television picture tube 21, thereby avoid interference circuit that pulse signal links to each other with circuit board by loud speaker 22 and be crosstalked into EEPROM on the circuit board, prevent that the television set data among the EEPROM from causing loss of data because of the interference of disturbing pulse signal.
Need to prove that the embodiment of the invention has more than and is aimed at the system for TV set that adopts the LV71002 of Sanyo chip, does not have the system for TV set of soft starting circuit also to have versatility and adaptability to other.
In sum, the metal shell of loud speaker is electrically connected on the earth terminal of picture tube by an electric conductor, the interference signal conductivity that the disturbing pulse signal that picture tube is sent by electric conductor produces at the metal shell of loud speaker is to the earth terminal of picture tube, avoid interference circuit that pulse signal links to each other with circuit board by loud speaker and be crosstalked into EEPROM on the circuit board, thereby prevent that the television set data among the EEPROM from causing loss of data because of the interference of disturbing pulse signal.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (6)
1. television set pulse interference eliminating method, described television set comprises picture tube and loud speaker, it is characterized in that, and described loud speaker comprises metal shell and the loudspeaker coil in described metal shell, and this method may further comprise the steps:
The metal shell of described loud speaker is electrically connected on the earth terminal of described picture tube by an electric conductor;
The interference signal conductivity that the disturbing pulse signal that described picture tube is sent by described electric conductor produces at the metal shell of described loud speaker is to the earth terminal of described picture tube.
2. the method for claim 1 is characterized in that,
The earth terminal of described picture tube is the ground path of picture tube.
3. the method for claim 1 is characterized in that, described electric conductor is a plain conductor.
4. television set, it is characterized in that, comprise picture tube, loud speaker, it is characterized in that, described loud speaker comprises metal shell and the loudspeaker coil in described metal shell, the metal shell of described loud speaker is electrically connected on the earth terminal of described picture tube by an electric conductor, and described electric conductor is used for interference signal conductivity that disturbing pulse signal that described picture tube is sent produces at the metal shell of the described loud speaker earth terminal to described picture tube.
5. television set as claimed in claim 4 is characterized in that, the ground path of the earth terminal picture tube of described picture tube.
6. television set as claimed in claim 4 is characterized in that, described electric conductor is a plain conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810218307A CN101753926A (en) | 2008-12-10 | 2008-12-10 | Television pulse interference eliminating method and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810218307A CN101753926A (en) | 2008-12-10 | 2008-12-10 | Television pulse interference eliminating method and television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101753926A true CN101753926A (en) | 2010-06-23 |
Family
ID=42480208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810218307A Pending CN101753926A (en) | 2008-12-10 | 2008-12-10 | Television pulse interference eliminating method and television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101753926A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658448A (en) * | 2017-11-16 | 2020-01-07 | 湖南工业大学 | Reed pipe service life detection device |
-
2008
- 2008-12-10 CN CN200810218307A patent/CN101753926A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658448A (en) * | 2017-11-16 | 2020-01-07 | 湖南工业大学 | Reed pipe service life detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10277863B2 (en) | Camera unit and sensing device | |
| CN104953279B (en) | A kind of body type antenna and terminal | |
| CN1390374A (en) | Radio frequency connector for reducing passive inter-modulation effects | |
| CN102164334A (en) | Condenser microphone having a flexible neck | |
| CN108362964A (en) | A kind of high-voltage square-wave clock of simulation complex electromagnetic environment | |
| CN102480592A (en) | Double-camera control circuit and double-camera mobile terminal | |
| CN106254592A (en) | A kind of mobile terminal | |
| CN202364309U (en) | Television antenna isolator | |
| CN108986971B (en) | Cable shielding device | |
| CN101753926A (en) | Television pulse interference eliminating method and television | |
| CN107230918A (en) | The fixed structure and mobile terminal of battery connector | |
| CN102214812B (en) | Battery pack with static discharge protective function and electronic device | |
| EP0720353B1 (en) | Dynamic focus coupling | |
| JP5804291B2 (en) | Camera unit | |
| CN105576347A (en) | Wireless communication equipment and antenna structure thereof | |
| CN108632691A (en) | A kind of antistatic microphone | |
| JP2011061331A (en) | Monitoring camera system | |
| CN201498801U (en) | Anti-electromagnetic pulse connector | |
| US8858262B2 (en) | F-connector with integrated surge protection | |
| CN203086131U (en) | Static electricity protection HDMI interface | |
| CN110113926A (en) | A kind of shielding construction and terminal | |
| CN215867790U9 (en) | Electronic pen | |
| CN210350168U (en) | PD filter device | |
| CN217523142U (en) | Signal shielding device and signal shielding grounding system | |
| CN210629097U (en) | Dual-power circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100623 |