CN101753158A - Mobile communication terminal and method thereof for adjusting power of FM/AM transmitter - Google Patents
Mobile communication terminal and method thereof for adjusting power of FM/AM transmitter Download PDFInfo
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- CN101753158A CN101753158A CN200810184105A CN200810184105A CN101753158A CN 101753158 A CN101753158 A CN 101753158A CN 200810184105 A CN200810184105 A CN 200810184105A CN 200810184105 A CN200810184105 A CN 200810184105A CN 101753158 A CN101753158 A CN 101753158A
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Abstract
The invention provides a mobile communication terminal and a method thereof for adjusting the power of an FM/AM (frequency modulation/amplitude modulation) transmitter. The method comprises the following steps: detecting the connection of peripheral devices of the mobile communication terminal to generate the connection information of the peripheral devices; and adjusting the power of the FM/AM transmitter according to the connection information of the peripheral devices. The invention has the following beneficial effects: the technical means that the power of the FM/AM transmitter is adjusted during the connection of peripheral devices is adopted, thereby overcoming the problem of the radiation from the peripheral devices in a coupling manner during the connection with the peripheral devices and further achieving the technical effect that a mobile phone or components provided with the FM/AM transmitter can meet the requirements according to the security specification.
Description
Technical field
The present invention relates in particular to a kind of mobile communication terminal and frequency modulation/amplitude modulation transmitter power method of adjustment thereof relevant for wireless communication technology field.
Background technology
At present, along with the continuous development of digital technology, various digital electronic products more and more with its strong functions and fast, operation easily attracts user's eyeball.
For example, the consumer except the outward appearance of paying attention to its personalization, fashion-orientation, strong functions that mobile phone has and simple operation also are the important factors that left and right sides consumers select mobile phone when selecting mobile phone.For example, along with the FM/AM technical development is swift and violent, especially still the main means of propagating in some remote districts, industry is integrated in FM/AM in the mobile phone as one of development in future direction, to realize FM/AM emission, reception etc.,, the music of for example user terminal being stored plays thereby being transferred to other one or more user terminals simultaneously.
Amplitude-modulation system radio broadcasting branch is done long wave, medium wave and three big wave bands of shortwave, respectively by the radio transmission wave signal of corresponding wave band.China has only the radio broadcasting of medium wave and two big wave bands of shortwave.The frequency range that medium wave broadcast is used is roughly 550kHz-1600kHz, mainly by the propagation of ground wave, also with the part sky wave; The frequency range that shortwave broadcasting uses is about 2MHz-24MHz, and is mainly by sky wave propagation, closely interior with earthwave.Ultrashort wave (very high frequency(VHF)) radio transmission wave signal is used in the frequency modulation system radio broadcasting more, and frequency of utilization is about 88MHz-108MHz, mainly by the space transmission wave signal.
The FM/AM system forms and comprises: 1) FM/AM chip: be used for receiving or emission FM/AM signal; 2) antenna (Antenna): transmit the FM/AM signal in module and base station, radio station; 3) transfer of data and treatment system.
In realizing process of the present invention, the inventor finds that there are the following problems in the prior art: because the frequency of FM/AM signal is lower, wavelength is very long, make other accessories such as mobile phone that have FM transmitter when cable apparatus such as insertion charger or data wire, the dominant frequency signal can radiate on cable by modes such as ground coupling and space couplings.The mobile phone or the accessory that cause having FM transmitter can't satisfy safety standard requirements.
Summary of the invention
In view of this, embodiments of the invention provide a kind of mobile communication terminal and frequency modulation/amplitude modulation transmitter power method of adjustment thereof, adjusting the power of the frequency modulation/amplitude modulation transmitter of mobile communication terminal, thereby weaken the radiation of frequency modulation/amplitude-modulated signal on the cable according to the connection situation of ancillary equipment.
To achieve these goals, embodiments of the invention provide a kind of frequency modulation/amplitude modulation transmitter power method of adjustment of mobile communication terminal, and this method comprises: the ancillary equipment that detects described mobile communication terminal connects situation, generates the ancillary equipment link information; Adjust the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal according to described ancillary equipment link information.
To achieve these goals, embodiments of the invention also provide a kind of mobile communication terminal, and this mobile communication terminal also comprises: detecting unit, and the ancillary equipment that is used to detect described mobile communication terminal connects situation, generates the ancillary equipment link information; The power adjustments unit is used for adjusting according to described ancillary equipment link information the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal.
The embodiment of the invention is adjusted the frequency modulation/amplitude modulation transmitter power by the connection situation according to ancillary equipment, overcome the problem that the dominant frequency signal radiate on ancillary equipment by coupled modes when ancillary equipment connects, made the mobile phone or the accessory that have the frequency modulation/amplitude modulation transmitter satisfy safety standard requirements.
Description of drawings
Accompanying drawing described herein is used to provide further to be understood embodiments of the invention, constitutes the application's a part, does not constitute the qualification to embodiments of the invention.In the accompanying drawings:
The flow chart of the frequency modulation/amplitude modulation transmitter power method of adjustment of the mobile communication terminal of the embodiment of the invention 1 that shown in Figure 1 is.
Shown in Figure 2 is the structural representation of the mobile communication terminal of the embodiment of the invention 2.
Shown in Figure 3 is the structural representation of the mobile phone of embodiments of the invention 3.
Adjust the flow chart of the method for frequency modulation/amplitude modulation transmitter power in the mobile phone of shown in Figure 4 is embodiments of the invention 3.
Schematic diagram during the connection charging device of the mobile phone of shown in Figure 5 is embodiments of the invention 3.
Shown in Figure 6 is the structural representation of the PDA of embodiments of the invention 4.
Adjust the flow chart of the method for frequency modulation/amplitude modulation transmitter power among the PDA of shown in Figure 7 is embodiments of the invention 4.
Embodiment
For the purpose, technical scheme and the advantage that make embodiments of the invention is clearer,, embodiments of the invention are described in further details below in conjunction with execution mode and accompanying drawing.At this, the exemplary embodiment of the embodiment of the invention and explanation thereof are used to explain embodiments of the invention, but not as a limitation of the invention.
Embodiment 1
The flow chart of the frequency modulation/amplitude modulation transmitter power method of adjustment of the mobile communication terminal of the embodiment of the invention 1 that shown in Figure 1 is as shown in Figure 1, comprising:
S101: the ancillary equipment that detects described mobile communication terminal connects situation, generates the ancillary equipment link information;
S102: the frequency modulation/amplitude modulation transmitter power of adjusting described mobile communication terminal according to described ancillary equipment link information.
Wherein, described ancillary equipment comprises charging device and data wire.
Present embodiment 1 is adjusted the frequency modulation/amplitude modulation transmitter power by the connection situation according to ancillary equipment, overcome the problem that the dominant frequency signal radiate on ancillary equipment by coupled modes when ancillary equipment connects, made the mobile phone or the accessory that have the frequency modulation/amplitude modulation transmitter satisfy safety standard requirements.
Shown in Figure 2 is the structural representation of the mobile communication terminal of the embodiment of the invention 2, the mobile communication terminal of the embodiment of the invention 2 comprises: detecting unit 201, be used to detect the ancillary equipment connection situation of described mobile communication terminal, generate the ancillary equipment link information; Power adjustments unit 202 is used for adjusting according to described ancillary equipment link information the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal.Wherein, described ancillary equipment comprises charging device and data wire.
By present embodiment 2, can adjust its frequency modulation/amplitude modulation transmitter power accordingly according to the connection situation of ancillary equipment owing to move in the current terminal, therefore make this mobile communication terminal satisfy safety standard requirements.
Shown in Figure 3 is the structural representation of the mobile phone of embodiments of the invention, as shown in Figure 3, the mobile phone of embodiment comprises: radio frequency unit, baseband circuit, speech decoding/coding unit, D/A, A/D unit, keyboard, FLASH unit, ram cell, SIM unit, LCD display unit, CPU, and comprise: frequency modulation/amplitude modulation transmitter 301 is used for transmitting radio broadcasting to communicate; Detecting unit 302, the ancillary equipment that is used to detect described mobile communication terminal connects situation, generates the ancillary equipment link information; Power adjustments unit 303 is used for controlling according to described ancillary equipment link information the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal.Wherein, described ancillary equipment comprises charging device and data wire.
By present embodiment 3,, therefore make this mobile phone satisfy safety standard requirements because mobile phone can be adjusted its frequency modulation/amplitude modulation transmitter power accordingly according to the connection situation of ancillary equipment.
Schematic diagram when the flow chart of the method for the adjustment frequency modulation/amplitude modulation transmitter power of the mobile phone of shown in Figure 4 is embodiments of the invention, the connection charging device of the mobile phone of shown in Figure 5 is embodiments of the invention.Describe the method for adjustment frequency modulation/amplitude modulation transmitter power of the mobile phone of embodiments of the invention in detail below in conjunction with Fig. 4.
S401: beginning promptly starts mobile phone;
S402: the user starts the frequency modulation/amplitude modulation transmitter;
S403:FM/AM detects and type is judged, promptly judges to be FM or AM and to be in low frequency, intermediate frequency, the high frequency which;
S404: start the power supply strategy, and initialization FM/AM;
S405: mobile phone control FM/AM operate as normal, make frequency modulation/amplitude modulation transmitter 301 by the radio broadcasting of default value normal transmission to communicate;
S406: insert charger or data wire (schematic diagram during the connection charging device of mobile phone as shown in Figure 5), detecting unit 302 detected ancillary equipment (as charging device or data wire) and was connected to mobile phone this moment;
S407: power adjustments unit 303 reduces the transmitting power of frequency modulation/amplitude modulation transmitter according to detecting unit 302 detected results;
S408: detecting unit 302 detects ancillary equipment and disconnects connection from mobile phone;
S409: the transmitting power of frequency modulation/amplitude modulation transmitter is adjusted for normal in power adjustments unit 303 according to detecting unit 302 detected results.
By present embodiment 3, mobile phone can detect the connection and the disconnection of ancillary equipment, thereby can be according to its connection and disconnection and correspondingly adjust the transmitting power of transmitter, thereby makes mobile phone under any circumstance all satisfy safety standard requirements.
That shown in Figure 6 is personal digital assistant (the Personal DigitalAssistant of embodiments of the invention 4, PDA) structural representation, as shown in Figure 6, the PDA of present embodiment 4 comprises: frequency modulation/amplitude modulation transmitter 601 is used for transmitting radio broadcasting to communicate; Model judgment unit 602 is used to judge the type of the frequency modulation/amplitude modulation transmitter of described PDA, and wherein said type comprises low frequency transmitter, MF transmitter, high frequency transmitter; Whether connect detecting unit 603, whether the ancillary equipment that is used to detect described PDA connects situation, generates whether to connect information; Type detection unit 604 is used to detect the type of the ancillary equipment that is connected to described PDA, generates the ancillary equipment type information; Power adjustments unit 605, be used for according to described connection whether the type of information, ancillary equipment type information and frequency modulation/amplitude modulation transmitter control the frequency modulation/amplitude modulation transmitter power of described PDA.Wherein, described ancillary equipment comprises charging device and data wire.
By present embodiment, PDA can detect the connection and the disconnection of ancillary equipment, thereby can be according to its connection and disconnection and correspondingly adjust the transmitting power of transmitter, thereby makes PDA under any circumstance all satisfy safety standard requirements.
Adjust the flow chart of the method for frequency modulation/amplitude modulation transmitter power among the PDA of shown in Figure 7 is embodiments of the invention 4.Describe the method for adjustment frequency modulation/amplitude modulation transmitter power of the PDA of embodiments of the invention 4 in detail below in conjunction with Fig. 7.
S701: beginning promptly starts PDA;
S702: the user starts the frequency modulation/amplitude modulation transmitter;
S703: model judgment unit 602 is judged the model of FM/AM, promptly judges to be FM or AM and to be in low frequency, intermediate frequency, the high frequency which;
S704: start the power supply strategy, and initialization FM/AM;
S705: control FM/AM operate as normal, make frequency modulation/amplitude modulation transmitter 601 by the radio broadcasting of default value normal transmission to communicate;
S706: insert charger or data wire;
S707: whether connect detecting unit 603 this moment and detected ancillary equipment and be connected to mobile phone, and generate and whether connect information;
S708: then, type detection unit 604 detects the type of the ancillary equipment that is connected, and generates the ancillary equipment type information;
S709: power adjustments unit 605 according to the model of the FM/AM of above-mentioned judgement, whether connect the transmitting power that information and ancillary equipment type information are adjusted the frequency modulation/amplitude modulation transmitter.
Wherein, power adjustments unit 605 is different and adjust the transmitting power of frequency modulation/amplitude modulation transmitter accordingly according to the model of FM/AM in step S709, promptly adjust the transmitting power of frequency modulation/amplitude modulation transmitter for high frequency, intermediate frequency, low frequency with different degree, an example of its adjustment is as shown in table 1 below:
| Sequence number | Low frequency (87.5MHz) | Intermediate frequency (100MHz) | High frequency (108MHz) | ??LIMIT |
| The FM normal transmission | ??-53.2dBm | ??-55.0dBm | ??-54.2dBm | ??-43dBm |
| Insert data wire | ??-40.1dBm | ??-42.5dBm | ??-46.3dBm | ??-43dBm |
| The charger charging | ??-39.5dBm | ??-40.1dBm | ??-43.5dBm | ??-43dBm |
| Software setting detects | ??-53.2dBm | ??-51.2dBm | ??-51.5dBm | ??-43dBm |
Table 1
As shown in table 1, with regard to low frequency (87.5MHz), the FM normal transmission of PDA is-53.2dBm, and its transmitting power just becomes-40.1dBm when inserting data wire, and its transmitting power just becomes-39.5dBm when inserting the charger charging, and its LIMIT value is-43dBm, therefore by the power adjustments unit its transmitting power is adjusted to-53.2dBm this moment, makes it satisfy safety standard requirements.In like manner, the parameter of the adjustment of its intermediate frequency and high frequency please refer to table 1.Wherein, as long as the transmitting power of adjusting by the power adjustments unit is greater than-43dBm, and need not certain and transmitting power is consistent normally.
By present embodiment 4, PDA can according to connection ancillary equipment difference and correspondingly adjust transmitter power, thereby have more practicality.
The beneficial effect of the embodiment of the invention is, because adopt the technological means of when ancillary equipment connects, adjusting the frequency modulation/amplitude modulation transmitter power, so overcome the problem that when ancillary equipment connects, on ancillary equipment, radiate, and then reached the technique effect that the mobile phone that has the frequency modulation/amplitude modulation transmitter or accessory can satisfy safety standard requirements by coupled modes.
Above-described embodiment; purpose, technical scheme and beneficial effect to embodiments of the invention further describe; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the frequency modulation/amplitude modulation transmitter power method of adjustment of a mobile communication terminal is characterized in that described method comprises:
The ancillary equipment that detects described mobile communication terminal connects situation, generates the ancillary equipment link information;
Adjust the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal according to described ancillary equipment link information.
2. the frequency modulation/amplitude modulation transmitter power method of adjustment of mobile communication terminal according to claim 1 is characterized in that, the ancillary equipment of the described mobile communication terminal of described detection connects situation, generates the ancillary equipment link information and comprises:
Whether the ancillary equipment that detects described mobile communication terminal connects, and generates link information;
Detection is connected to the type of the described ancillary equipment of described mobile communication terminal, generates the ancillary equipment type information.
3. the frequency modulation/amplitude modulation transmitter power method of adjustment of mobile communication terminal according to claim 1 is characterized in that, described frequency modulation/amplitude modulation transmitter power according to ancillary equipment link information control mobile communication terminal comprises:
When having detected ancillary equipment and be connected to described mobile communication terminal, reduce the power of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal; And/or,
When detecting the ancillary equipment that is connected to mobile communication terminal when described mobile communication terminal disconnects, heighten the power of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal.
4. the frequency modulation/amplitude modulation transmitter power method of adjustment of mobile communication terminal according to claim 3 is characterized in that described method also comprises:
Judge the type of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal, according to the corresponding power of adjusting described frequency modulation/amplitude modulation transmitter of described type, wherein said type comprises low frequency transmitter, MF transmitter, high frequency transmitter.
5. according to the frequency modulation/amplitude modulation transmitter power method of adjustment of any described mobile communication terminal in the claim 1 to 4, it is characterized in that,
Described ancillary equipment comprises charging device and data wire.
6. a mobile communication terminal is characterized in that, this mobile communication terminal also comprises:
Detecting unit, the ancillary equipment that is used to detect described mobile communication terminal connects situation, generates the ancillary equipment link information;
The power adjustments unit is used for adjusting according to described ancillary equipment link information the frequency modulation/amplitude modulation transmitter power of described mobile communication terminal.
7. mobile communication terminal according to claim 6 is characterized in that, described detecting unit comprises:
Connection detection module, whether the ancillary equipment that is used to detect described mobile communication terminal connects, and generates link information;
The type detection module is used to detect the type of the described ancillary equipment that is connected to described mobile communication terminal, generates the ancillary equipment type information.
8. mobile communication terminal according to claim 6 is characterized in that,
Described power adjustments unit specifically is used for when having detected ancillary equipment and be connected to described mobile communication terminal, and described power adjustments unit reduces the power of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal; And/or when detecting the ancillary equipment that is connected to mobile communication terminal when described mobile communication terminal disconnects, the power of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal is heightened in described power adjustments unit.
9. mobile communication terminal according to claim 8 is characterized in that, described mobile communication terminal also comprises:
Model judgment unit is used to judge the type of the frequency modulation/amplitude modulation transmitter of described mobile communication terminal, and wherein said type comprises low frequency transmitter, MF transmitter, high frequency transmitter,
Described power adjustments unit also is used for according to the corresponding power of adjusting described frequency modulation/amplitude modulation transmitter of the type of being judged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810184105 CN101753158B (en) | 2008-12-11 | 2008-12-11 | Mobile communication terminal and method thereof for adjusting power of FM/AM transmitter |
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| CN 200810184105 CN101753158B (en) | 2008-12-11 | 2008-12-11 | Mobile communication terminal and method thereof for adjusting power of FM/AM transmitter |
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| CN101753158A true CN101753158A (en) | 2010-06-23 |
| CN101753158B CN101753158B (en) | 2013-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261990A (en) * | 2010-12-28 | 2013-08-21 | 洛克希德马丁公司 | Safe area voltage and current interface |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06276146A (en) * | 1993-03-19 | 1994-09-30 | Fujitsu Ltd | Traveling telephone system |
| US5995821A (en) * | 1997-04-23 | 1999-11-30 | Qualcomm Incorporated | Dual-band glass-mounted coupler for wireless telephones in vehicles |
| CN1667980A (en) * | 2004-03-12 | 2005-09-14 | 阿尔卡特苏州通讯有限公司 | A method for connecting mobile terminal with adapter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261990A (en) * | 2010-12-28 | 2013-08-21 | 洛克希德马丁公司 | Safe area voltage and current interface |
| CN103261990B (en) * | 2010-12-28 | 2016-06-08 | 洛克希德马丁公司 | Safety zone voltage and current interface |
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| CN101753158B (en) | 2013-10-02 |
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Effective date of registration: 20171101 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Device Co., Ltd. |
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Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: Huawei Device Co., Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: HUAWEI terminal (Dongguan) Co., Ltd. |
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