CN103067110A - Broadcast channel searching method and broadcast receiving equipment - Google Patents
Broadcast channel searching method and broadcast receiving equipment Download PDFInfo
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- CN103067110A CN103067110A CN2012105488559A CN201210548855A CN103067110A CN 103067110 A CN103067110 A CN 103067110A CN 2012105488559 A CN2012105488559 A CN 2012105488559A CN 201210548855 A CN201210548855 A CN 201210548855A CN 103067110 A CN103067110 A CN 103067110A
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Abstract
The invention discloses a broadcast channel searching method and broadcast receiving equipment. The broadcast channel searching method includes the steps of searching all channel points of one broadcast band one by one, detecting signal intensity of each frequency point, using the signal intensity as first signal intensity, recording the frequency point with the first signal intensity larger than a preset threshold value as the frequency point to be ensured, detecting signal intensity each frequency point to be ensured, using the signal intensity as second signal intensity, and recording the frequency point to be ensured and with the second signal intensity large than the preset threshold value as a true channel frequency point. The broadcast receiving equipment comprises a channel searching unit, a retesting unit and a recording unit. The broadcast channel searching method and the broadcast receiving equipment get rid of an influence of an interference signal to a channel searching result by means of secondary detection of the broadcast frequency points obtained after channel searching and improve accuracy of broadcast channel searching.
Description
Technical field
The present invention relates to a kind of broadcasting channel search method and apparatus for receiving broadcasting.
Background technology
At present handheld device comprise mobile phone etc. all integrated receive the function of broadcasting.Existing broadcasting tuning records the signal strength signal intensity of each frequency by searching for successively from the low frequency to the high frequency or from the high frequency to the low frequency, if some frequency signal strength signal intensities have reached predefined threshold values, so just be recorded as an effective platform.Because some uncertain interference that exist in the space of receiving broadcast signal probably just are considered to true platform, be presented at effective platform tabulation the inside and go on record.This brings a lot of inconvenience with regard to the use of giving the user.
In FM broadcasting, frequency range concentrates on 80-108MHZ, and the more frequency range interval that also is interference ratio, this frequency range interval, humorous wave interference when disturbing a part to come from equipment work itself, a part is the interference that comes from the space in addition, and easier appearance is for the interference of tuning and cause the erroneous judgement of frequency-modulation broadcasting frequency.
Summary of the invention
The technical problem to be solved in the present invention is some interference signals can be mistaken for broadcast singal in order to overcome broadcasting channel search method of the prior art, thereby record wrong frequency and bring the defective of the inconvenience in user's use, a kind of broadcasting channel search method and apparatus for receiving broadcasting are proposed, by the secondary detection of the broadcasting frequency that obtains after the search has been got rid of the impact of interference signal on the tuning result, improved the accuracy of broadcasting tuning.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides a kind of broadcasting channel search method, its characteristics are, may further comprise the steps:
S
101, search for all frequencies in the broadcast band one by one, and the signal strength signal intensity that detects each frequency is as first signal intensity;
S
102, first signal intensity is recorded as frequency to be confirmed greater than the frequency of a pre-set threshold value;
S
103, detect the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity;
S
104, secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this pre-set threshold value.
Preferably, this broadcasting channel search method is used for FM broadcasting.
The present invention also provides a kind of apparatus for receiving broadcasting, and its characteristics are, comprising:
One is preset with the tuning unit of a signal strength signal intensity threshold values, the signal strength signal intensity that this tuning unit is used for searching for one by one all frequencies in the broadcast band and detects each frequency is as first signal intensity, and first signal intensity is sent to a repetition measurement unit greater than the frequency of this signal strength signal intensity threshold values as frequency to be confirmed;
This repetition measurement unit is preset with this signal strength signal intensity threshold values, this repetition measurement unit for detection of the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity, and secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this signal strength signal intensity threshold values, should be sent to a record cell by true platform frequency;
This record cell is used for preserving this true platform frequency.
Preferably, this apparatus for receiving broadcasting is used for receiving FM broadcasting.
On the basis that meets this area general knowledge, above-mentioned each optimum condition, but combination in any namely get the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
A kind of broadcasting channel search method of the present invention and apparatus for receiving broadcasting, may to be mistaken as be the interference signal of broadcasting frequency by the secondary detection of the broadcasting frequency that obtains after the search has been got rid of, improved the accuracy of broadcasting tuning, made the broadcasting tuning more convenient, reliable.
Description of drawings
Fig. 1 is the flow chart of the broadcasting channel search method of the embodiment of the invention 1.
Fig. 2 is the schematic diagram of the apparatus for receiving broadcasting of the embodiment of the invention 2.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, describing technical scheme of the present invention in detail, but therefore do not limit the present invention among the described scope of embodiments.
As shown in Figure 1, the broadcasting channel search method of present embodiment may further comprise the steps:
S
101, search for all frequencies in the broadcast band one by one, and the signal strength signal intensity that detects each frequency is as first signal intensity; S
102, first signal intensity is recorded as frequency to be confirmed greater than the frequency of a pre-set threshold value; S
103, detect the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity; S
104, secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this pre-set threshold value.
In the present embodiment, by this step S
103And S
104Again detection to the signal strength signal intensity of the frequency to be confirmed that searches comes each frequency to be confirmed is checked.Because interference signal all is extremely unsettled usually, so by twice detection, just can effectively exclude the stronger interference signal of signal strength signal intensity that measures in the once search.
Preferably, this broadcasting channel search method is used for FM broadcasting.
Embodiment 2
As shown in Figure 2, the apparatus for receiving broadcasting 1 of present embodiment comprises:
One is preset with the tuning unit 11 of a signal strength signal intensity threshold values, the signal strength signal intensity that this tuning unit 11 is used for searching for one by one all frequencies in the broadcast band and detects each frequency is as first signal intensity, and first signal intensity is sent to a repetition measurement unit 12 greater than the frequency of this signal strength signal intensity threshold values as frequency to be confirmed;
This repetition measurement unit 12 is preset with this signal strength signal intensity threshold values, this repetition measurement unit 12 for detection of the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity, and secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this signal strength signal intensity threshold values, should be sent to a record cell 13 by true platform frequency;
This record cell 13 is used for preserving this true platform frequency.
Preferably, this apparatus for receiving broadcasting 1 is used for receiving FM broadcasting.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (4)
1. a broadcasting channel search method is characterized in that, may further comprise the steps:
S
101, search for all frequencies in the broadcast band one by one, and the signal strength signal intensity that detects each frequency is as first signal intensity;
S
102, first signal intensity is recorded as frequency to be confirmed greater than the frequency of a pre-set threshold value;
S
103, detect the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity;
S
104, secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this pre-set threshold value.
2. broadcasting channel search method as claimed in claim 1 is characterized in that, this broadcasting channel search method is used for FM broadcasting.
3. an apparatus for receiving broadcasting is characterized in that, comprising:
One is preset with the tuning unit of a signal strength signal intensity threshold values, the signal strength signal intensity that this tuning unit is used for searching for one by one all frequencies in the broadcast band and detects each frequency is as first signal intensity, and first signal intensity is sent to a repetition measurement unit greater than the frequency of this signal strength signal intensity threshold values as frequency to be confirmed;
This repetition measurement unit is preset with this signal strength signal intensity threshold values, this repetition measurement unit for detection of the signal strength signal intensity of each frequency to be confirmed as secondary signal intensity, and secondary signal intensity in the frequency to be confirmed is recorded as true platform frequency greater than the frequency of this signal strength signal intensity threshold values, should be sent to a record cell by true platform frequency;
This record cell is used for preserving this true platform frequency.
4. apparatus for receiving broadcasting as claimed in claim 3 is characterized in that, this apparatus for receiving broadcasting is used for receiving FM broadcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105488559A CN103067110A (en) | 2012-12-17 | 2012-12-17 | Broadcast channel searching method and broadcast receiving equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105488559A CN103067110A (en) | 2012-12-17 | 2012-12-17 | Broadcast channel searching method and broadcast receiving equipment |
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| CN103067110A true CN103067110A (en) | 2013-04-24 |
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| CN2012105488559A Pending CN103067110A (en) | 2012-12-17 | 2012-12-17 | Broadcast channel searching method and broadcast receiving equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376004A (en) * | 2014-07-31 | 2016-03-02 | 展讯通信（上海）有限公司 | Adaptive broadcasting station searching device, adaptive broadcasting station searching method and FM receiver |
| CN105812080A (en) * | 2014-12-31 | 2016-07-27 | 展讯通信（上海）有限公司 | Radio signal automatic searching device and method and frequency modulation radio |
| CN107196672A (en) * | 2017-04-12 | 2017-09-22 | 建荣半导体（深圳）有限公司 | A kind of tuning methods of FM receiver, tuning chip and FM receiver |
| CN112821972A (en) * | 2020-12-31 | 2021-05-18 | 展讯通信（上海）有限公司 | Frequency point signal processing method and device, terminal and storage medium |
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| CN1968025A (en) * | 2005-11-18 | 2007-05-23 | 鸿富锦精密工业（深圳）有限公司 | Radio receiving set and method |
| CN101087145A (en) * | 2007-05-24 | 2007-12-12 | 华为技术有限公司 | Channel search and saving method and device for frequency modulation broadcast |
| CN101616215A (en) * | 2008-06-23 | 2009-12-30 | Lg电子株式会社 | Portable terminal reaches the method for managing channel list therein |
| JP2010183590A (en) * | 2010-03-05 | 2010-08-19 | Toshiba Corp | Radio communication apparatus, signal detection circuit, and signal detection method |
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2012
- 2012-12-17 CN CN2012105488559A patent/CN103067110A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1968025A (en) * | 2005-11-18 | 2007-05-23 | 鸿富锦精密工业（深圳）有限公司 | Radio receiving set and method |
| CN101087145A (en) * | 2007-05-24 | 2007-12-12 | 华为技术有限公司 | Channel search and saving method and device for frequency modulation broadcast |
| CN101616215A (en) * | 2008-06-23 | 2009-12-30 | Lg电子株式会社 | Portable terminal reaches the method for managing channel list therein |
| JP2010183590A (en) * | 2010-03-05 | 2010-08-19 | Toshiba Corp | Radio communication apparatus, signal detection circuit, and signal detection method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376004A (en) * | 2014-07-31 | 2016-03-02 | 展讯通信（上海）有限公司 | Adaptive broadcasting station searching device, adaptive broadcasting station searching method and FM receiver |
| CN105376004B (en) * | 2014-07-31 | 2018-07-10 | 展讯通信（上海）有限公司 | A kind of adaptive tuning device and method and FM receiver |
| CN105812080A (en) * | 2014-12-31 | 2016-07-27 | 展讯通信（上海）有限公司 | Radio signal automatic searching device and method and frequency modulation radio |
| CN105812080B (en) * | 2014-12-31 | 2019-04-26 | 展讯通信（上海）有限公司 | A kind of automatic searcher of radio signals and method and FM receiver |
| CN107196672A (en) * | 2017-04-12 | 2017-09-22 | 建荣半导体（深圳）有限公司 | A kind of tuning methods of FM receiver, tuning chip and FM receiver |
| CN107196672B (en) * | 2017-04-12 | 2019-08-23 | 建荣半导体（深圳）有限公司 | A kind of tuning methods of FM receiver, tuning chip and FM receiver |
| CN112821972A (en) * | 2020-12-31 | 2021-05-18 | 展讯通信（上海）有限公司 | Frequency point signal processing method and device, terminal and storage medium |
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Application publication date: 20130424 |