CN102186040A - Quick channel searching method for digital analog television integrated machine - Google Patents
Quick channel searching method for digital analog television integrated machine Download PDFInfo
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- CN102186040A CN102186040A CN 201110123821 CN201110123821A CN102186040A CN 102186040 A CN102186040 A CN 102186040A CN 201110123821 CN201110123821 CN 201110123821 CN 201110123821 A CN201110123821 A CN 201110123821A CN 102186040 A CN102186040 A CN 102186040A
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Abstract
The invention relates to a television channel searching technology and discloses a quick channel searching method for a digital analog television integrated machine. The method solves the problem that slow channel search affects a user to watch programs in the prior art. The technical scheme has the key points that the quick channel searching method for the digital analog television integrated machine comprises the following steps of: a, performing full-band analog television signal channel search during full-automatic channel search, and storing the searched analog television signal image carrier frequency points in a storage unit; b, performing corresponding conversion on the analog television signal image carrier frequency points searched in the step a to obtain digital television carrier frequency points corresponding to the searched analog television signal bands; and c, jumping over the bands of the digital television carrier frequency points to directly search other bands at digital television signal channel search. The method is suitable for ground wave digital televisions such as digital television terrestrial multimedia broadcasting (DTMB) and digital video broadcasting-terrestrial (DVB-T), and is also suitable for wired digital televisions such as a digital video broadcasting-cable (DVB-C) and the like.
Description
Technical field
The present invention relates to the television channel search technique, relate to a kind of digital simulation TV all-in-one quick channel search method specifically.
Background technology
Digital television techniques development at present is swift and violent, and Digital Television translation work is all being carried out in all parts of the country, but considers long excessive period, and current digital television receiver all is the digital simulation all-in-one without exception.As everyone knows, because digital signal has with respect to analog signal complex decoding process more, therefore, Digital Television is searched platform, and to search platform speed than simulated television obviously slow.And at present the platform pattern of automatically searching of digital simulation all-in-one is the simulation of carrying out full frequency band earlier and searches the numeral that platform carries out full frequency band again and search platform, and the numeral of perhaps carrying out full frequency band is earlier searched the simulation that platform carries out full frequency band again and searched platform, and it is more slow to search platform speed.For the long-term user who uses simulated television before digital shift, very uncomfortable, also influenced watching of TV programme.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of digital simulation TV all-in-one quick channel search method, it is slow to search platform in the solution conventional art, influences the problem that the user watches TV programme.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: digital simulation TV all-in-one quick channel search method may further comprise the steps:
A. when automatically searching platform, carry out the full frequency band anolog TV signals earlier and search platform, the anolog TV signals vision carrier frequency point that searches out is stored in the memory cell;
B. the anolog TV signals vision carrier frequency point that searches among the step a is converted accordingly the Digital Television carrier frequency point of the anolog TV signals frequency range correspondence that has been searched;
C. carrying out digital television signal when searching platform, skip above-mentioned Digital Television carrier frequency and put residing frequency range, directly other frequency range is searched for.
Further, among the step b, the method that the anolog TV signals vision carrier frequency point that searches among the step a is converted accordingly is: the anolog TV signals vision carrier frequency point+2.75MHz of digital television signal carrier frequency point=this frequency range of same frequency range.
The invention has the beneficial effects as follows: by earlier the anolog TV signals full frequency band being searched for, and the carrier frequency point that searches stored conversion, obtain corresponding Digital Television carrier frequency point, when carrying out the digital television signal search, skip the frequency range at these Digital Television carrier frequency point places, directly carry out the search of other frequency range, increase substantially search efficiency.
Embodiment
At digital simulation TV all-in-one in the conventional art when searching platform, adopt the simulation of first full frequency band search platform again the full frequency band numeral search platform or first full frequency band numeral search platform again the full frequency band simulation search the slow-paced problem of platform of searching that platform causes, the present invention proposes a kind of quick channel search method, it is by searching for the anolog TV signals full frequency band earlier, and the carrier frequency point that searches stored conversion, obtain corresponding Digital Television carrier frequency point, when carrying out the digital television signal search, skip the frequency range at these Digital Television carrier frequency point places, directly carry out the search of other frequency range, increase substantially search efficiency.
On concrete enforcement, the solution of the present invention adopts following steps to realize:
1. the MCU control unit in the digital simulation TV all-in-one sends the instruction of automatically searching platform to digital simulation one tuner;
2. digital simulation one tuner earlier carries out full frequency band to anolog TV signals and searches platform, the MCU control unit is deposited the platform operation except carrying out the conventional platform of searching, also the vision carrier frequency point with the anolog TV signals that search out deposits memory cell in, and this vision carrier frequency point converted, obtain this frequency band digital TV carrier frequency point;
3. after anolog TV signals are searched platform and are finished, the Digital Television carrier frequency point that has searched out the frequency range correspondence of anolog TV signals just all stores memory cell into, search in the platform at the digital television signal that next carries out, MCU control unit control channel searching system, shielding has searched out the Digital Television carrier frequency point of the frequency range correspondence of analog signal, just directly skip these frequency ranges, only carry out the platform of searching of other residue frequency range and operate.
Conversion for Digital Television carrier frequency point, with the Chinese TV standard is example, anolog TV signals adopt vestigial sideband modulation, its vision carrier frequency point is positioned at the frequency range lower portion, and Digital Television carrier frequency point is positioned at the centre of frequency range, simple computation, same frequency band digital TV carrier frequency point equals simulated television vision carrier frequency point and adds 2.75MHz.
Quick channel search method among the present invention is applicable to surface wave Digital Television such as DTMB, DVB-T, also is applicable to cable digital TV such as DVB-C.
The present invention's technical scheme required for protection comprises but is not limited only to the described content of above-mentioned embodiment; those skilled in the art changes the technique effect that reaches same according to foregoing description to the solution of the present invention easily slightly, and it all belongs to protection scope of the present invention.
Claims (2)
1. digital simulation TV all-in-one quick channel search method is characterized in that: may further comprise the steps:
A. when automatically searching platform, carry out the full frequency band anolog TV signals earlier and search platform, the anolog TV signals vision carrier frequency point that searches out is stored in the memory cell;
B. the anolog TV signals vision carrier frequency point that searches among the step a is converted accordingly the Digital Television carrier frequency point of the anolog TV signals frequency range correspondence that has been searched;
C. carrying out digital television signal when searching platform, skip above-mentioned Digital Television carrier frequency and put residing frequency range, directly other frequency range is searched for.
2. digital simulation TV all-in-one quick channel search method as claimed in claim 1, it is characterized in that: among the step b, the method that the anolog TV signals vision carrier frequency point that searches among the step a is converted accordingly is: the anolog TV signals vision carrier frequency point+2.75MHz of digital television signal carrier frequency point=this frequency range of same frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123821 CN102186040A (en) | 2011-05-13 | 2011-05-13 | Quick channel searching method for digital analog television integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123821 CN102186040A (en) | 2011-05-13 | 2011-05-13 | Quick channel searching method for digital analog television integrated machine |
Publications (1)
| Publication Number | Publication Date |
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| CN102186040A true CN102186040A (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110123821 Pending CN102186040A (en) | 2011-05-13 | 2011-05-13 | Quick channel searching method for digital analog television integrated machine |
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| CN (1) | CN102186040A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516798A (en) * | 2015-12-17 | 2016-04-20 | 深圳Tcl数字技术有限公司 | Channel search method and system for television terminal |
| CN106658166A (en) * | 2016-12-13 | 2017-05-10 | 广州视源电子科技股份有限公司 | Television program searching method, switching method and system |
| CN113490042A (en) * | 2021-08-13 | 2021-10-08 | 海信视像科技股份有限公司 | Display device and channel searching method |
| WO2023016499A1 (en) * | 2021-08-10 | 2023-02-16 | 海信电子科技（深圳）有限公司 | Method for searching for channels and display device |
| CN116614593A (en) * | 2023-07-20 | 2023-08-18 | 高拓讯达(北京)微电子股份有限公司 | Channel searching equipment, channel searching method and television for simulating television channels |
Citations (4)
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| WO2001045257A1 (en) * | 1999-12-16 | 2001-06-21 | Koninklijke Philips Electronics N.V. | Speeding up search tuning in television receivers |
| US20010016110A1 (en) * | 1999-12-27 | 2001-08-23 | Jurgen Engesser | Search mode for a D-VHS recorder |
| CN1538735A (en) * | 2003-04-17 | 2004-10-20 | 陈绍华 | Intelligent information television and listeming and watching looking method |
| CN101507264A (en) * | 2006-10-23 | 2009-08-12 | 深圳Tcl新技术有限公司 | System and method for accommodation of digital and analog channel number conflicts |
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2011
- 2011-05-13 CN CN 201110123821 patent/CN102186040A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001045257A1 (en) * | 1999-12-16 | 2001-06-21 | Koninklijke Philips Electronics N.V. | Speeding up search tuning in television receivers |
| US20010016110A1 (en) * | 1999-12-27 | 2001-08-23 | Jurgen Engesser | Search mode for a D-VHS recorder |
| CN1538735A (en) * | 2003-04-17 | 2004-10-20 | 陈绍华 | Intelligent information television and listeming and watching looking method |
| CN101507264A (en) * | 2006-10-23 | 2009-08-12 | 深圳Tcl新技术有限公司 | System and method for accommodation of digital and analog channel number conflicts |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516798A (en) * | 2015-12-17 | 2016-04-20 | 深圳Tcl数字技术有限公司 | Channel search method and system for television terminal |
| CN105516798B (en) * | 2015-12-17 | 2019-03-01 | 深圳Tcl数字技术有限公司 | Television terminal channel search method and system |
| CN106658166A (en) * | 2016-12-13 | 2017-05-10 | 广州视源电子科技股份有限公司 | Television program searching method, switching method and system |
| WO2023016499A1 (en) * | 2021-08-10 | 2023-02-16 | 海信电子科技（深圳）有限公司 | Method for searching for channels and display device |
| CN113490042A (en) * | 2021-08-13 | 2021-10-08 | 海信视像科技股份有限公司 | Display device and channel searching method |
| CN116614593A (en) * | 2023-07-20 | 2023-08-18 | 高拓讯达(北京)微电子股份有限公司 | Channel searching equipment, channel searching method and television for simulating television channels |
| CN116614593B (en) * | 2023-07-20 | 2023-09-15 | 高拓讯达(北京)微电子股份有限公司 | Channel searching equipment, channel searching method and television for simulating television channels |
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Application publication date: 20110914 |