CN103731689A - Method and device for searching for television programs - Google Patents
Method and device for searching for television programs Download PDFInfo
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- CN103731689A CN103731689A CN201310666339.0A CN201310666339A CN103731689A CN 103731689 A CN103731689 A CN 103731689A CN 201310666339 A CN201310666339 A CN 201310666339A CN 103731689 A CN103731689 A CN 103731689A
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Abstract
The embodiment of the invention provides a method and device for searching for television programs, and relates to the field of the electronic technologies. Accuracy for searching for the television programs can be improved, and high-quality television programs can be preserved. The method can comprises the steps that reference information corresponding to a first television program is obtained; if the first television program is an effective television program is judged according to the reference information; if the first television program is an effective television program, the first television program is preserved.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of method and device of searching TV program.
Background technology
Along with the development of electronic technology, the application of electronic equipment is more and more extensive, is especially prevalent in the TV in people's life.
In prior art, TV is when searching TV program, TV can all be searched at all Frequency points that TV programme can be detected, and by the TV programme searching at these Frequency points, comprises that effective TV programme and invalid TV programme all save for the follow-up selection of user and watch.Wherein, effectively TV programme is the TV programme that picture quality and sound quality reach default quality standard; Invalid TV programme is picture quality and/or the sound quality TV programme lower than this default quality standard.
But, in the method for above-mentioned searching TV program, because TV can all be searched for and preserve all TV programme that can detect, therefore, many invalid TV programme may be searched for and be saved in to TV, thereby it is lower to cause TV to search for the accuracy rate of effective TV programme, and the TV TV programme of preserving is second-rate.
Summary of the invention
Embodiments of the invention provide a kind of method and device of searching TV program, can improve the accuracy rate of the effective TV programme of search, and the quality of the TV programme of preserving is high.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A method for searching TV program, comprising:
Obtain the reference information corresponding with the first TV programme;
According to described reference information, judge whether described the first TV programme is effective TV programme;
If described the first TV programme is effective TV programme, preserve described the first TV programme.
Described reference information is the signal strength signal intensity of described the first TV programme,
Wherein, described according to described reference information, judge that whether described the first TV programme is that the method for effective TV programme comprises:
The signal strength signal intensity of described the first TV programme and the first predetermined threshold value are contrasted;
If the signal strength signal intensity of described the first TV programme is more than or equal to described the first predetermined threshold value, judge that described the first TV programme is effective TV programme, or,
If the signal strength signal intensity of described the first TV programme is less than described the first predetermined threshold value, judge that described the first TV programme is invalid TV programme.
Described reference information is the vision signal of described the first TV programme,
Wherein, described according to described reference information, judge that whether described the first TV programme is that the method for effective TV programme comprises:
At first frequency point, detect the audio signal that whether has described the first TV programme, described first frequency point is and the Frequency point of second frequency point at a distance of the second predetermined threshold value that described second frequency point is the Frequency point corresponding with the vision signal of described the first TV programme;
If the audio signal of described the first TV programme detected at described first frequency point, judge that described the first TV programme is effective TV programme, or,
If the audio signal of described the first TV programme do not detected at described first frequency point, judge that described the first TV programme is invalid TV programme.
Described reference information is three Frequency point corresponding with the synchronizing signal of described the first TV programme,
Wherein, described according to the reference information of described the first TV programme, judge that whether described the first TV programme is that the method for effective TV programme comprises:
Described the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value are contrasted respectively;
If described the 3rd Frequency point is more than or equal to described the 4th predetermined threshold value, and described the 3rd Frequency point is less than or equal to described the 3rd predetermined threshold value, judges that described the first TV programme is effective TV programme, or,
If described the 3rd Frequency point is less than described the 4th predetermined threshold value, or described the 3rd Frequency point is greater than described the 3rd predetermined threshold value, judges that described the first TV programme is invalid TV programme.
Described according to the reference information of described the first TV programme, judge that whether described the first TV programme is after effective TV programme, described method also comprises:
If described the first TV programme is invalid TV programme, abandon described the first TV programme.
A device for searching TV program, comprising:
Acquiring unit, for obtaining the reference information corresponding with the first TV programme;
Judging unit, for the described reference information obtaining according to described acquiring unit, judges whether described the first TV programme is effective TV programme;
Storage unit, if judge that for described judging unit described the first TV programme is effective TV programme, preserves described the first TV programme.
The described reference information that described acquiring unit obtains is the signal strength signal intensity of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit;
Described contrast unit, contrasts for signal strength signal intensity and first predetermined threshold value of described the first TV programme that described acquiring unit is obtained;
Described judging unit, if the signal strength signal intensity that also contrasts for described contrast unit described the first TV programme that described acquiring unit obtains is more than or equal to described the first predetermined threshold value, judges that described the first TV programme is effective TV programme, or,
Described judging unit, if the signal strength signal intensity that also contrasts for described contrast unit described the first TV programme that described acquiring unit obtains is less than described the first predetermined threshold value, judges that described the first TV programme is invalid TV programme.
The described reference information that described acquiring unit obtains is the vision signal of described the first TV programme, and wherein, the device of described searching TV program also comprises detecting unit;
Described detecting unit, for detect the audio signal that whether has described the first TV programme at first frequency point, described first frequency point for and second frequency point at a distance of the Frequency point of the second predetermined threshold value, described second frequency point is the Frequency point corresponding to vision signal of described the first TV programme of obtaining with described acquiring unit;
Described judging unit, if the audio signal of described the first TV programme also detected at described first frequency point for described detecting unit, judges that described the first TV programme is effective TV programme, or,
Described judging unit, if the audio signal of described the first TV programme also do not detected at described first frequency point for described detecting unit, judges that described the first TV programme is invalid TV programme.
The described reference information that described acquiring unit obtains is three Frequency point corresponding with the synchronizing signal of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit;
Described contrast unit, contrasts respectively for described the 3rd Frequency point that described acquiring unit is obtained and the 3rd predetermined threshold value and the 4th predetermined threshold value;
Described judging unit, if also contrast for described contrast unit described the 3rd Frequency point that described acquiring unit obtains, be more than or equal to described the 4th predetermined threshold value, and described the 3rd Frequency point is less than or equal to described the 3rd predetermined threshold value, judges that described the first TV programme is effective TV programme, or
Described judging unit, if also contrast for described contrast unit described the 3rd Frequency point that described acquiring unit obtains, be less than described the 4th predetermined threshold value, or described the 3rd Frequency point is greater than described the 3rd predetermined threshold value, judge that described the first TV programme is invalid TV programme.
The device of described searching TV program also comprises discarding unit;
Described discarding unit, for the reference information of described described the first TV programme of obtaining according to described acquiring unit, judge that whether described the first TV programme is after effective TV programme, if it is invalid TV programme that described judging unit judges described the first TV programme, abandon described the first TV programme.
Embodiments of the invention provide a kind of method and device of searching TV program, by obtaining the reference information corresponding with the first TV programme, and according to this reference information, judge whether the first TV programme is effective TV programme, if and the first TV programme is effective TV programme, preserve this first TV programme.By this scheme, during due to searching TV program, electronic equipment is preserved the effective TV programme searching, and the invalid TV programme searching is abandoned, and therefore, can improve the accuracy rate of the effective TV programme of search, and the quality of the TV programme of preserving is high.
Accompanying drawing explanation
The flow chart one of the method for a kind of television channel searching that Fig. 1 provides for the embodiment of the present invention;
The flowchart 2 of the method for a kind of television channel searching that Fig. 2 provides for the embodiment of the present invention;
The flow chart 3 of the method for a kind of television channel searching that Fig. 3 provides for the embodiment of the present invention;
The flow chart four of the method for a kind of television channel searching that Fig. 4 provides for the embodiment of the present invention;
The flow chart of modulation, demodulation and the decoding of the TV signal that Fig. 5 provides for the embodiment of the present invention;
The vision signal of the first TV programme and the oscillogram corresponding to audio signal of the first TV programme under the D/K standard that Fig. 6 provides for the embodiment of the present invention;
The flow chart five of the method for a kind of television channel searching that Fig. 7 provides for the embodiment of the present invention;
The structural representation one of the device 1 of a kind of television channel searching that Fig. 8 provides for the embodiment of the present invention;
The structural representation two of the device 1 of a kind of television channel searching that Fig. 9 provides for the embodiment of the present invention;
The structural representation three of the device 1 of a kind of television channel searching that Figure 10 provides for the embodiment of the present invention;
The structural representation four of the device 1 of a kind of television channel searching that Figure 11 provides for the embodiment of the present invention.
Embodiment
Method and the device of a kind of searching TV program embodiment of the present invention being provided below in conjunction with accompanying drawing are described in detail.
Embodiment mono-
Embodiments of the invention provide a kind of method of searching TV program, and as shown in Figure 1, the method can comprise:
S101, electronic equipment obtain the reference information corresponding with the first TV programme.
It should be noted that, when electronic equipment carries out searching TV program, can search for respectively by the Frequency point in frequency channels of cable TV.Electronic equipment receives tuning instruction, starts to search for the first TV programme.
Concrete, electronic equipment receives the tuning instruction from control appliance, starts to search for the first TV programme, and wherein, this control appliance can, for controlling the remote controller of electronic equipment, can be also control button integrated in electronic equipment.
Especially, because electronic equipment is when searching the first TV programme, electronic equipment can obtain Frequency point list corresponding to whole the first TV programme searching, and therefore, electronic equipment can be searched for the first TV programme according to the Frequency point of this Frequency point list.
Further, frequency range corresponding to the first TV programme is 45 megahertz-870 megahertzes.
Electronic equipment is when searching the first TV programme, and electronic equipment obtains the reference information corresponding with this first TV programme.
Further, electronic equipment obtains, corresponding with the first TV programme can be the feature of the TV signal that receives of this electronic equipment, the information of synchronizing signal etc. with reference to information, such as Frequency point corresponding to signal strength signal intensity, the vision signal of the first TV programme or the synchronizing signal of the first TV programme of the first TV programme etc.
S102, electronic equipment, according to this reference information, judge whether the first TV programme is effective TV programme.
After electronic equipment obtains the reference information corresponding with the first TV programme, electronic equipment, according to this reference information, judges this first TV programme, to determine that whether this first TV programme is as effective television channel.
It should be noted that, if this first TV programme is not effective TV programme, be invalid TV programme.
Concrete, electronic equipment can judge whether this first TV programme is effective TV programme according to Frequency point corresponding to the synchronizing signal of the vision signal of the signal strength signal intensity of the first TV programme, the first TV programme or the first TV programme etc., at length deterministic process will describe in subsequent embodiment, repeat no more herein.
Be understandable that, electronic equipment is when searching TV program, electronic equipment can all be searched at all Frequency points that TV programme can be detected, in the embodiment of the present invention, by judging whether the first TV programme that electronic equipment searches is effective TV programme, so that eliminate the invalid TV programme that electronic equipment searches, thereby raising electronic equipment is searched for the accuracy rate of effective TV programme.
If S103 the first TV programme is effective TV programme, electronic equipment is preserved this first TV programme.
Electronic equipment is according to this reference information, judges that whether the first TV programme is after effective TV programme, if this first TV programme is effective TV programme, electronic equipment is preserved this first TV programme, so that subsequent user is watched TV programme.
It should be noted that, electronic equipment searches after the first TV programme, this first TV programme can be preserved, and at electronic equipment, completes all after the effectively search of TV programme, shows that the effective program searching is to user.
Be understandable that, the method of the searching TV program that the embodiment of the present invention provides, because electronic equipment is when the searching TV program, electronic equipment searches effective TV programme and invalid TV programme, and electronic equipment only saves effective program for the follow-up selection of user and watches.Therefore, improved the accuracy rate of electronic equipment to effective television program search, and user searched for after TV programme, see by being, preserved the high TV programme of quality, i.e. effective TV programme, thus promoted user's experience sense.
Further, if the first TV programme is effective TV programme, after electronic equipment is preserved this first TV programme, electronic equipment continues to search for next the first TV programme at the Frequency point of next cable TV, and carry out S101-S103, to complete search procedure.
Embodiments of the invention provide a kind of method of searching TV program, electronic equipment is by obtaining the reference information corresponding with the first TV programme, and electronic equipment is according to this reference information, judge whether the first TV programme is effective TV programme, if and the first TV programme is effective TV programme, electronic equipment is preserved this first TV programme.By this scheme, during due to searching TV program, electronic equipment is preserved the effective TV programme searching, and the invalid TV programme searching is abandoned, and therefore, can improve the accuracy rate of the effective TV programme of search, and the quality of the TV programme of preserving is high.
Embodiment bis-
Embodiments of the invention provide a kind of method of searching TV program, and as shown in Figure 2, the method can comprise:
S201, electronic equipment obtain the reference information corresponding with the first TV programme.
It should be noted that, when electronic equipment carries out searching TV program, can search for respectively by the Frequency point in frequency channels of cable TV.Electronic equipment receives tuning instruction, starts to search for the first TV programme.
Concrete, electronic equipment receives the tuning instruction from control appliance, starts to search for the first TV programme, and wherein, this control appliance can, for controlling the remote controller of electronic equipment, can be also control button integrated in electronic equipment.
Especially, because electronic equipment is when searching the first TV programme, electronic equipment can obtain Frequency point list corresponding to whole the first TV programme searching, and therefore, electronic equipment can be searched for the first TV programme according to the Frequency point of this Frequency point list.
Further, frequency range corresponding to the first TV programme is 45 megahertz-870 megahertzes.
Electronic equipment is when searching the first TV programme, and electronic equipment obtains the reference information corresponding with this first TV programme.
Further, electronic equipment obtains, corresponding with the first TV programme can be the feature of the TV signal that receives of this electronic equipment, the information of synchronizing signal etc. with reference to information, such as Frequency point corresponding to signal strength signal intensity, the vision signal of the first TV programme or the synchronizing signal of the first TV programme of the first TV programme etc.
S202, electronic equipment, according to this reference information, judge whether the first TV programme is effective TV programme.
After electronic equipment obtains the reference information corresponding with the first TV programme, electronic equipment, according to this reference information, judges this first TV programme, to determine that whether this first TV programme is as effective television channel.
It should be noted that, if this first TV programme is not effective TV programme, be invalid TV programme.
Concrete, electronic equipment can judge whether this first TV programme is effective TV programme according to Frequency point corresponding to the synchronizing signal of the vision signal of the signal strength signal intensity of the first TV programme, the first TV programme or the first TV programme etc.
(1), reference information is the signal strength signal intensity of the first TV programme, wherein, as shown in Figure 3, electronic equipment is according to reference information, judges that whether the first TV programme is that the method for effective TV programme comprises:
S301, electronic equipment contrast the signal strength signal intensity of the first TV programme and the first predetermined threshold value.
Electronic equipment contrasts the size of the signal strength signal intensity of the first TV programme of obtaining and the first predetermined threshold value, and electronic equipment judges by the result of contrast whether this first TV programme is effective TV programme.
It should be noted that, the sensitivity of the radiofrequency signal that the television receiver of electronic equipment receives has a lower limit, and this lower limit is 32dB μ V (a kind of voltage is decibel unit specifically, can be used as the unit of signal strength signal intensity).If the signal strength signal intensity of the TV programme that electronic equipment searches is below above-mentioned lower limit, electronic equipment thinks that this first TV programme that electronic equipment searches is invalid TV programme.In the embodiment of the present invention, the lower limit of the sensitivity of above-mentioned radiofrequency signal is the first predetermined threshold value.Therefore, electronic equipment, when searching the first TV programme, contrasts the signal strength signal intensity of this first TV programme and the first predetermined threshold value, to judge that whether this first television program is as effective TV programme.
If the signal strength signal intensity of S302 the first TV programme is more than or equal to the first predetermined threshold value, electronic equipment judges that the first TV programme is effective TV programme.
After electronic equipment contrasts the signal strength signal intensity of the first TV programme and the first predetermined threshold value, if the signal strength signal intensity of the first TV programme is more than or equal to the first predetermined threshold value, the signal strength signal intensity of the first TV programme is more than the lower limit of the sensitivity of above-mentioned radiofrequency signal, and electronic equipment judges that the first TV programme is effective TV programme.
If the signal strength signal intensity of S303 the first TV programme is less than the first predetermined threshold value, electronic equipment judges that the first TV programme is invalid TV programme.
After electronic equipment contrasts the signal strength signal intensity of the first TV programme and the first predetermined threshold value, if the signal strength signal intensity of the first TV programme is less than the first predetermined threshold value, the signal strength signal intensity of the first TV programme is below the lower limit of the sensitivity of above-mentioned radiofrequency signal, and electronic equipment judges that the first TV programme is invalid TV programme.
Exemplary, after the first TV programme that electronic equipment searches, the signal strength signal intensity that electronic equipment detects this first TV programme is 36dB μ V, the first predetermined threshold value is 35dB μ V, because 36dB μ V is greater than 35dB μ V, therefore, the signal strength signal intensity of the first TV programme is greater than the first predetermined threshold value, and this first TV programme is effective TV programme.
(2), reference information is the vision signal of the first TV programme, wherein, as shown in Figure 4, electronic equipment is according to reference information, judges that whether the first TV programme is that the method for effective TV programme comprises:
S401, electronic equipment detect the audio signal that whether has the first TV programme at first frequency point, this first frequency point is and the Frequency point of second frequency point at a distance of the second predetermined threshold value that this second frequency point is the Frequency point corresponding with the vision signal of the first TV programme.
It should be noted that, as shown in Figure 5, for the flow chart of modulation, demodulation and the decoding of TV signal in electronic equipment, concrete, electronic equipment will be modulated at tuner from antenna reception high-frequency signal, after tuner frequency-selecting, by this high-frequency signal in demodulator through amplification, go after intermediate frequency carrier etc. processing, enter decoder and carry out channel-decoding.Wherein, the TV signal that electronic equipment receives was all that the feature of TV signal is the form existence that vision signal adds audio signal before demodulation.
The data-signal of the first TV programme that electronic equipment receives is after tuner, electronic equipment detects the vision signal of this first TV programme, electronic equipment is take the vision signal of the first TV programme as reference information, at first frequency point, detect the audio signal that whether has the first TV programme, this first frequency point is and the Frequency point of second frequency point at a distance of the second predetermined threshold value that this second frequency point is the Frequency point corresponding with the vision signal of the first TV programme.
Wherein, the second predetermined threshold value is the value of the Frequency point corresponding with sound carrier under the sound accompaniment standard of the vision signal of the first TV programme.
Be understandable that, because the first TV programme of electronic equipment search is after tuner modulation, to only have vision signal and audio signal that the first TV programme detected, the first TV programme is just judged as effective TV programme simultaneously.Therefore, electronic equipment, take the vision signal of the first TV programme as reference information, detects the audio signal that whether has the first TV programme at first frequency point.
It should be noted that, because Frequency point corresponding to signal is a Frequency point scope, rather than a frequency values, therefore, Frequency point corresponding to signal in the embodiment of the present invention is the center frequency points that this signal is corresponding.
Further, for the sound accompaniment standard of unlike signal, the value difference of the Frequency point that its sound carrier is corresponding.Wherein, sound accompaniment standard can be divided into: D/K standard: the value of the Frequency point that sound carrier is corresponding is 6.5 megahertzes, and the second predetermined threshold value is 6.5 megahertzes, and general China is used this sound accompaniment standard; I standard: the value of the Frequency point that sound carrier is corresponding is 6.0 megahertzes, the second predetermined threshold value is 6.0 megahertzes, this sound accompaniment standard is used in general Hong Kong; BG standard: the value of the Frequency point that sound carrier is corresponding is 5.5 megahertzes, the second predetermined threshold value is 5.5 megahertzes, national this sound accompaniment standard of using such as general Russia; M standard: the value of the Frequency point that sound carrier is corresponding is 4.5 megahertzes, the second predetermined threshold value is 4.5 megahertzes, general Japan, the U.S. are used this sound accompaniment standard.
Especially, vision signal under D/K standard and BG standard adds Frequency point corresponding to audio signal and accounts for 8 megahertzes, vision signal under I standard adds Frequency point corresponding to audio signal and accounts for 7 megahertzes, and the vision signal under I standard adds Frequency point corresponding to audio signal and accounts for 6 megahertzes.
If S402 detects the audio signal of the first TV programme at first frequency point, electronic equipment judges that the first TV programme is effective TV programme.
Electronic equipment is after whether the detection of first frequency point there is the audio signal of the first TV programme, if the audio signal of the first TV programme detected at this first frequency point, electronic equipment judges that the first TV programme is effective TV programme.
If S403 does not detect the audio signal of the first TV programme at first frequency point, electronic equipment judges that the first TV programme is invalid TV programme.
Electronic equipment is after whether the detection of first frequency point there is the audio signal of the first TV programme, if the audio signal of the first TV programme do not detected at this first frequency point, electronic equipment judges that the first TV programme is invalid TV programme.
Exemplary, as shown in Figure 6, be the vision signal of the first TV programme under D/K standard and the oscillogram corresponding to audio signal of the first TV programme.Electronic equipment detects the first TV programme at the Frequency point of 126 megahertzes, center frequency points corresponding to the vision signal of this first TV programme is at 129 megahertz places, center frequency points corresponding to the audio signal of this first TV programme is at 135.5 megahertz places, the second predetermined threshold value under D/K standard is 6.5 megahertzes, electronic equipment is at first frequency point, and the audio signal that whether has this first TV programme is detected at 129 megahertz places, megahertz=135.5, megahertz+6.5.As shown in Figure 6, electronic equipment detects the audio signal of this first TV programme at 135.5 megahertz places, and therefore, electronic equipment judges that this first TV programme is effective TV programme.
(3), reference information is three Frequency point corresponding with the synchronizing signal of the first TV programme, wherein, as shown in Figure 7, electronic equipment is according to the reference information of the first TV programme, judges that whether the first TV programme is that the method for effective TV programme comprises:
S501, electronic equipment contrast the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value respectively.
It should be noted that, as shown in Figure 5, electronic equipment is by the TV signal process demodulation receiving, before decoding, electronic equipment separates the vision signal of TV signal and audio signal, and this vision signal is called composite video signal, now, electronic equipment by synchronizing separator circuit, is isolated synchronizing signal by this composite video signal.Electronic equipment can be corresponding according to this synchronizing signal the 3rd Frequency point, judge whether the first TV programme is effective TV programme.
Electronic equipment contrasts the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value respectively, and according to the result of contrast, to determine that whether this first TV programme is as effective TV programme.
Further, under different color coding standard, the Frequency point difference that the isolated synchronizing signal of composite video signal is corresponding.Wherein, color-code standard can be divided into: PAL(Phase Alternating Line, line-by-line inversion) system, SECAM(Sequentiel Couleur A Memoire, order transmits color and storage) system and NTSC(National Television Standards Committee, NTSC) system.
Concrete, under Phase Alternation Line system and Sequential Color and Memory system, Frequency point corresponding to synchronizing signal is 15625 hertz, under TSC-system, Frequency point corresponding to synchronizing signal is 15750 hertz.
Further, under Phase Alternation Line system and Sequential Color and Memory system, the 3rd predetermined threshold value is 15625 hertz+100 hertz, the 4th predetermined threshold value is 15625 hertz-100 hertz, under TSC-system, the 3rd predetermined threshold value is 15750 hertz+100 hertz, and the 4th predetermined threshold value is 15750 hertz-100 hertz.
It should be noted that, electronic equipment can contrast according to the 3rd predetermined threshold value under different systems and the 4th predetermined threshold value and the 3rd Frequency point.
If S502 the 3rd Frequency point is more than or equal to the 4th predetermined threshold value, and the 3rd Frequency point is less than or equal to the 3rd predetermined threshold value, and electronic equipment judges that the first TV programme is effective TV programme.
After electronic equipment contrasts the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value respectively, if the 3rd Frequency point is more than or equal to the 4th predetermined threshold value, and the 3rd Frequency point is less than or equal to the 3rd predetermined threshold value, electronic equipment judges that the first TV programme is effective TV programme.
If S503 the 3rd Frequency point is less than the 4th predetermined threshold value, or the 3rd Frequency point is greater than the 3rd predetermined threshold value, and electronic equipment judges that the first TV programme is invalid TV programme.
After electronic equipment contrasts the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value respectively, if the 3rd Frequency point is less than the 4th predetermined threshold value, or the 3rd Frequency point be greater than the 3rd predetermined threshold value, electronic equipment judges that the first TV programme is invalid TV programme.
Exemplary, under pal mode, suppose that the 3rd Frequency point corresponding to synchronizing signal of the first TV programme is 15624 hertz, the 3rd predetermined threshold value is 15626 hertz, the 4th predetermined threshold value is 15623 hertz.15624 hertz of electronic equipment contrasts and the size of 15623 hertz, 15626 hertz.Be greater than 15623 hertz due to 15624 hertz, and 15624 hertz be less than 15626 hertz, the 3rd Frequency point is greater than the 4th predetermined threshold value, and the 3rd Frequency point is less than the 3rd predetermined threshold value, and therefore, this first TV programme is effective TV programme.
Be understandable that, electronic equipment is when searching TV program, electronic equipment can all be searched at all Frequency points that TV programme can be detected, in the embodiment of the present invention, by judging whether the first TV programme that electronic equipment searches is effective TV programme, so that eliminate the invalid TV programme that electronic equipment searches, thereby raising electronic equipment is searched for the accuracy rate of effective TV programme.
It should be noted that, when electronic equipment searches after the first TV programme, electronic equipment can judge whether this first TV programme is effective TV programme by any one or a few method in above-mentioned (1), (2), (3).
If S203 the first TV programme is effective TV programme, electronic equipment is preserved this first TV programme.
Electronic equipment is according to this reference information, judges that whether the first TV programme is after effective TV programme, if this first TV programme is effective TV programme, electronic equipment is preserved this first TV programme, so that subsequent user is watched TV programme.
It should be noted that, electronic equipment searches after the first TV programme, this first TV programme can be preserved, and at electronic equipment, completes all after the effectively search of TV programme, shows that the effective program searching is to user.
If S204 the first TV programme is invalid TV programme, electronic equipment abandons this first TV programme.
Electronic equipment is according to this reference information, judge that whether the first TV programme is after effective TV programme, if this first TV programme is invalid TV programme, electronic equipment abandons this first TV programme, so that eliminate this invalid TV programme, thereby make subsequent user watch TV programme, be effective TV programme.
Be understandable that, the method for the searching TV program that the embodiment of the present invention provides, electronic equipment is when searching TV program, and electronic equipment is searched for effective TV programme and invalid TV programme.Electronic equipment only saves effective program for the follow-up selection of user and watches, and invalid TV programme is abandoned.Improved like this accuracy rate of electronic equipment to effective television program search, and user searched for after TV programme, see by being, preserved the high TV programme of quality, thereby promoted user's experience sense.
Further, if the first TV programme is effective TV programme, after electronic equipment is preserved this first TV programme, electronic equipment continues to search for next the first TV programme at the Frequency point of next cable TV, and carries out S201-S204 and complete search procedure; If the first TV programme is invalid TV programme, after electronic equipment abandons this first TV programme, electronic equipment continues to search for next the first TV programme at the next Frequency point of cable TV, and carries out S201-S204, to complete search procedure.
Embodiments of the invention provide a kind of method of searching TV program, electronic equipment is by obtaining the reference information corresponding with the first TV programme, and electronic equipment is according to this reference information, judge whether the first TV programme is effective TV programme, if and the first TV programme is effective TV programme, electronic equipment is preserved this first TV programme.By this scheme, during due to searching TV program, electronic equipment is preserved the effective TV programme searching, and the invalid TV programme searching is abandoned, and therefore, can improve the accuracy rate of the effective TV programme of search, and the quality of the TV programme of preserving is high.
Embodiment tri-
As shown in Figure 8, embodiments of the invention provide a kind of device 1 of searching TV program, and the device 1 of this searching TV program can comprise:
Acquiring unit 10, for obtaining the reference information corresponding with the first TV programme.
Judging unit 11, for the described reference information obtaining according to described acquiring unit 10, judges whether described the first TV programme is effective TV programme.
Optionally, as shown in Figure 9, the described reference information that described acquiring unit 10 obtains is the signal strength signal intensity of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit 13.
Described contrast unit 13, contrasts for signal strength signal intensity and first predetermined threshold value of described the first TV programme that described acquiring unit 10 is obtained.
Described judging unit 12, if the signal strength signal intensity that also contrasts for described contrast unit 13 described the first TV programme that described acquiring unit 10 obtains is more than or equal to described the first predetermined threshold value, judges that described the first TV programme is effective TV programme, or,
Described judging unit 12, if the signal strength signal intensity that also contrasts for described contrast unit 13 described the first TV programme that described acquiring unit 10 obtains is less than described the first predetermined threshold value, judges that described the first TV programme is invalid TV programme.
Optionally, as shown in figure 10, the described reference information that described acquiring unit 10 obtains is the vision signal of described the first TV programme, and wherein, the device of described searching TV program also comprises detecting unit 14.
Described detecting unit 14, for detecting whether there is the audio signal that has described the first TV programme at first frequency point, described first frequency point for and second frequency point at a distance of the Frequency point of the second predetermined threshold value, described second frequency point is the Frequency point corresponding to vision signal of described the first TV programme of obtaining with described acquiring unit 10.
Described judging unit 12, if the audio signal of described the first TV programme also detected at described first frequency point for described detecting unit 14, judges that described the first TV programme is effective TV programme, or,
Described judging unit 12, if the audio signal of described the first TV programme also do not detected at described first frequency point for described detecting unit 14, judges that described the first TV programme is invalid TV programme.
Optionally, as shown in Figure 9, the described reference information that described acquiring unit 10 obtains is three Frequency point corresponding with the synchronizing signal of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit 13.
Described contrast unit 13, contrasts respectively for described the 3rd Frequency point that described acquiring unit 10 is obtained and the 3rd predetermined threshold value and the 4th predetermined threshold value.
Described judging unit 12, if also contrast for described contrast unit 13 described the 3rd Frequency point that described acquiring unit 10 obtains, be more than or equal to described the 4th predetermined threshold value, and described the 3rd Frequency point is less than or equal to described the 3rd predetermined threshold value, judge that described the first TV programme is effective TV programme, or
Described judging unit 12, if also contrast for described contrast unit 13 described the 3rd Frequency point that described acquiring unit 10 obtains, be less than described the 4th predetermined threshold value, or described the 3rd Frequency point is greater than described the 3rd predetermined threshold value, judge that described the first TV programme is invalid TV programme.
Optionally, as shown in figure 11, the device of described searching TV program also comprises discarding unit 15.
Described discarding unit 15, for the reference information of described described the first TV programme of obtaining according to described acquiring unit 10, judge that whether described the first TV programme is after effective TV programme, if it is invalid TV programme that described judging unit 12 judges described the first TV programme, abandon described the first TV programme.
The device of the searching TV program that the embodiment of the present invention provides can be for intelligent electronic device, and wherein, this intelligent electronic device can comprise the equipment that intelligent television etc. can received television signal.
Embodiments of the invention provide a kind of device of searching TV program, the device of this searching TV program is by obtaining the reference information corresponding with the first TV programme, and the device of this searching TV program is according to this reference information, judge whether the first TV programme is effective TV programme, if and the first TV programme is effective TV programme, the device of this searching TV program is preserved this first TV programme.By this scheme, during due to searching TV program, the device of this searching TV program is preserved the effective TV programme searching, and the invalid TV programme searching is abandoned, therefore, can improve the accuracy rate of the effective TV programme of search, and the quality of the TV programme of preserving is high.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only with the division of above-mentioned each functional module, be illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to device is divided into different functional modules, to complete all or part of function described above.The specific works process of the device of foregoing description, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic.
Described unit can or can not be also physically to separate, and the parts that show as unit can be a physical location or multiple physical location, can be positioned at a place, or also can be distributed to multiple different local.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized and during as production marketing independently or use, can be stored in a read/write memory medium using the form of SFU software functional unit.Based on such understanding, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this software product is stored in a storage medium, comprise that some instructions are in order to make an equipment (can be single-chip microcomputer, chip etc.) or processor (processor) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory, magnetic disc or CDs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (10)
1. a method for searching TV program, is characterized in that, comprising:
Obtain the reference information corresponding with the first TV programme;
According to described reference information, judge whether described the first TV programme is effective TV programme;
If described the first TV programme is effective TV programme, preserve described the first TV programme.
2. the method for searching TV program according to claim 1, is characterized in that, described reference information is the signal strength signal intensity of described the first TV programme,
Wherein, described according to described reference information, judge that whether described the first TV programme is that the method for effective TV programme comprises:
The signal strength signal intensity of described the first TV programme and the first predetermined threshold value are contrasted;
If the signal strength signal intensity of described the first TV programme is more than or equal to described the first predetermined threshold value, judge that described the first TV programme is effective TV programme, or,
If the signal strength signal intensity of described the first TV programme is less than described the first predetermined threshold value, judge that described the first TV programme is invalid TV programme.
3. the method for searching TV program according to claim 1, is characterized in that, described reference information is the vision signal of described the first TV programme,
Wherein, described according to described reference information, judge that whether described the first TV programme is that the method for effective TV programme comprises:
At first frequency point, detect the audio signal that whether has described the first TV programme, described first frequency point is and the Frequency point of second frequency point at a distance of the second predetermined threshold value that described second frequency point is the Frequency point corresponding with the vision signal of described the first TV programme;
If the audio signal of described the first TV programme detected at described first frequency point, judge that described the first TV programme is effective TV programme, or,
If the audio signal of described the first TV programme do not detected at described first frequency point, judge that described the first TV programme is invalid TV programme.
4. the method for searching TV program according to claim 1, is characterized in that, described reference information is three Frequency point corresponding with the synchronizing signal of described the first TV programme,
Wherein, described according to the reference information of described the first TV programme, judge that whether described the first TV programme is that the method for effective TV programme comprises:
Described the 3rd Frequency point and the 3rd predetermined threshold value and the 4th predetermined threshold value are contrasted respectively;
If described the 3rd Frequency point is more than or equal to described the 4th predetermined threshold value, and described the 3rd Frequency point is less than or equal to described the 3rd predetermined threshold value, judges that described the first TV programme is effective TV programme, or,
If described the 3rd Frequency point is less than described the 4th predetermined threshold value, or described the 3rd Frequency point is greater than described the 3rd predetermined threshold value, judges that described the first TV programme is invalid TV programme.
5. according to the method for the searching TV program described in claim 1-4 any one, it is characterized in that, described according to the reference information of described the first TV programme, judge that whether described the first TV programme is after effective TV programme, described method also comprises:
If described the first TV programme is invalid TV programme, abandon described the first TV programme.
6. a device for searching TV program, is characterized in that, comprising:
Acquiring unit, for obtaining the reference information corresponding with the first TV programme;
Judging unit, for the described reference information obtaining according to described acquiring unit, judges whether described the first TV programme is effective TV programme;
Storage unit, if judge that for described judging unit described the first TV programme is effective TV programme, preserves described the first TV programme.
7. the device of searching TV program according to claim 6, is characterized in that, the described reference information that described acquiring unit obtains is the signal strength signal intensity of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit;
Described contrast unit, contrasts for signal strength signal intensity and first predetermined threshold value of described the first TV programme that described acquiring unit is obtained;
Described judging unit, if the signal strength signal intensity that also contrasts for described contrast unit described the first TV programme that described acquiring unit obtains is more than or equal to described the first predetermined threshold value, judges that described the first TV programme is effective TV programme, or,
Described judging unit, if the signal strength signal intensity that also contrasts for described contrast unit described the first TV programme that described acquiring unit obtains is less than described the first predetermined threshold value, judges that described the first TV programme is invalid TV programme.
8. the device of searching TV program according to claim 6, is characterized in that, the described reference information that described acquiring unit obtains is the vision signal of described the first TV programme, and wherein, the device of described searching TV program also comprises detecting unit;
Described detecting unit, for detect the audio signal that whether has described the first TV programme at first frequency point, described first frequency point for and second frequency point at a distance of the Frequency point of the second predetermined threshold value, described second frequency point is the Frequency point corresponding to vision signal of described the first TV programme of obtaining with described acquiring unit;
Described judging unit, if the audio signal of described the first TV programme also detected at described first frequency point for described detecting unit, judges that described the first TV programme is effective TV programme, or,
Described judging unit, if the audio signal of described the first TV programme also do not detected at described first frequency point for described detecting unit, judges that described the first TV programme is invalid TV programme.
9. the device of searching TV program according to claim 6, it is characterized in that, the described reference information that described acquiring unit obtains is three Frequency point corresponding with the synchronizing signal of described the first TV programme, and wherein, the device of described searching TV program also comprises contrast unit;
Described contrast unit, contrasts respectively for described the 3rd Frequency point that described acquiring unit is obtained and the 3rd predetermined threshold value and the 4th predetermined threshold value;
Described judging unit, if also contrast for described contrast unit described the 3rd Frequency point that described acquiring unit obtains, be more than or equal to described the 4th predetermined threshold value, and described the 3rd Frequency point is less than or equal to described the 3rd predetermined threshold value, judges that described the first TV programme is effective TV programme, or
Described judging unit, if also contrast for described contrast unit described the 3rd Frequency point that described acquiring unit obtains, be less than described the 4th predetermined threshold value, or described the 3rd Frequency point is greater than described the 3rd predetermined threshold value, judge that described the first TV programme is invalid TV programme.
10. according to the device of the searching TV program described in claim 6-9 any one, it is characterized in that, the device of described searching TV program also comprises discarding unit;
Described discarding unit, for the reference information of described described the first TV programme of obtaining according to described acquiring unit, judge that whether described the first TV programme is after effective TV programme, if it is invalid TV programme that described judging unit judges described the first TV programme, abandon described the first TV programme.
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Application publication date: 20140416 |