CN204350079U - A kind of GSM-R hand-held station with audio frequency processing capacity - Google Patents
A kind of GSM-R hand-held station with audio frequency processing capacity Download PDFInfo
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- CN204350079U CN204350079U CN201520039087.3U CN201520039087U CN204350079U CN 204350079 U CN204350079 U CN 204350079U CN 201520039087 U CN201520039087 U CN 201520039087U CN 204350079 U CN204350079 U CN 204350079U
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Abstract
The utility model describes a kind of GSM-R hand-held station with audio frequency processing capacity, comprises digital baseband, Analog Baseband, analog switch, power amplifier, loud speaker and earphone, comprises speech chip in addition; Wherein, speech chip is connected with digital baseband, Analog Baseband, analog switch and earphone respectively, and Analog Baseband is also connected with earphone with analog switch respectively simultaneously, and analog switch is connected with loud speaker by power amplifier.Owing to have employed above-mentioned technology, the utility model by adding speech chip between digital baseband and Analog Baseband, hand-held station is possessed functions such as Mike's recording, calling record, recording playback, local music broadcasting, voice winding; Simultaneously, this speech chip is directly connected with earphone, make earphone can receive the double-channel output signal of Analog Baseband or speech chip, thus improve the adaptive capacity of hand-held station, and finally reach the object better meeting railway GSM-R network system requirements.
Description
Technical field
The utility model relates to field of mobile communication, particularly relates to a kind of GSM-R hand-held station with audio frequency processing capacity.
Background technology
GSM-R hand-held station is a kind of mobile communication equipment being exclusively used in railway GSM-R network system, and is compatible with traditional GSM/GPRS mobile communication network, and it has friendly interface, is easy to expansion, can adapts to the features such as railway GSM-R network development need.
But along with the development of technology, the requirement of railway GSM-R network system is also more and more higher, and existing GSM-R hand-held station only has basic voice call and the tinkle of bells function, the requirements at the higher level of railway GSM-R network system for voice aspect well cannot be met.
Utility model content
In order to solve the problem, the utility model provides a kind of GSM-R hand-held station with audio frequency processing capacity, by making certain improvements for phonetic function part and promoting, thus has better met the demand of railway GSM-R network system.
Above-mentioned a kind of GSM-R hand-held station with audio frequency processing capacity, comprises digital baseband, Analog Baseband, analog switch, power amplifier, loud speaker and earphone, comprises speech chip in addition; Described speech chip is connected with digital baseband, Analog Baseband, analog switch and earphone respectively, and described Analog Baseband is also connected with earphone with analog switch respectively; Described analog switch is connected with loud speaker by power amplifier.
In said apparatus, described speech chip is provided with TF card.
In said apparatus, described speech chip is VC0968 chip.
In said apparatus, described digital baseband is CX805-32 chip.
In said apparatus, described Analog Baseband is CX20524 chip.
In said apparatus, described analog switch is NLSA4684 chip.
In said apparatus, described power amplifier is LM48511 chip.
Advantage of the present utility model and beneficial effect are: the utility model provides a kind of GSM-R hand-held station with audio frequency processing capacity, by adding speech chip between digital baseband and Analog Baseband, hand-held station is possessed functions such as Mike's recording, calling record, recording playback, local music broadcasting, voice winding; Simultaneously, this speech chip is directly connected with earphone, make earphone can receive the double-channel output signal of Analog Baseband or speech chip, thus improve the adaptive capacity of hand-held station, and finally reach the object better meeting railway GSM-R network system requirements.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of GSM-R hand-held station in the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
As shown in Figure 1, the utility model describes a kind of GSM-R hand-held station with audio frequency processing capacity, comprises digital baseband 1, Analog Baseband 3, analog switch 4, power amplifier 5, loud speaker 6 and earphone 7, in addition, in order to intensifier sound function, be also provided with speech chip 2.
Be specially, speech chip 2 is connected with digital baseband 1, Analog Baseband 3, analog switch 4 and earphone 7 respectively; Analog Baseband 3 is also connected with earphone 7 with analog switch 4 respectively simultaneously; In addition, analog switch 4 is connected with loud speaker 6 by power amplifier 5.
Wherein, digital baseband 1 is CX805-32 chip, is mainly used to control speech chip 2; And speech chip 2 mainly carries out AD sampling processing to Mike's signal, receiver signal, audio input signal, audio output signal, and the functions such as Mike's recording, calling record, recording playback, local music broadcasting, voice winding can be realized; Preferably, what the speech chip 2 in the utility model adopted is VC0968 chip, and is provided with TF card, to reach better autgmentability.
Meanwhile, what Analog Baseband 3 adopted is CX20524 chip, and is responsible for the work for the treatment of of audio signal, mainly comprises the input of Mike, the functions such as the output of receiver.
In addition, what analog switch 4 adopted is NLSA4684 chip, this chip is a kind of analog switch device of alternative, different analog channels can be selected by control manually, thus make earphone 7 can receive the double-channel output signal of Analog Baseband 3 or speech chip 2, thus improve the adaptive capacity of hand-held station.
Further, what power amplifier 5 adopted is LM48511 chip, thus the audio signal of output can be amplified, to reach the power requirement of loud speaker 6.
In the utility model, the operation principle of GSM-R hand-held station is:
First, gather by AD the signal such as audio frequency input, output that path gathers the input signal of external microphone, receiver signal and Analog Baseband 3 by speech chip 2; Then by collecting in TF card that microphone signal arranges stored in speech chip 2, also microphone signal during call and receiver signal can be stored in TF card simultaneously simultaneously, thus complete the operation of calling record then.
In addition, speech chip 2 also directly can be read the audio file stored in TF card and then play by loud speaker 6 or earphone 7.Wherein, what adopt due to speech chip 2 is VC0968 chip, and it is an embedded DSP kernel, so all have quite outstanding surface in audio collection, audio frequency process, audio frequency output etc.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. there is a GSM-R hand-held station for audio frequency processing capacity, comprise digital baseband, Analog Baseband, analog switch, power amplifier, loud speaker and earphone, it is characterized in that, also comprise speech chip; Described speech chip is connected with digital baseband, Analog Baseband, analog switch and earphone respectively, and described Analog Baseband is also connected with earphone with analog switch respectively; Described analog switch is connected with loud speaker by power amplifier.
2. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 1, it is characterized in that, described speech chip is provided with TF card.
3. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 2, it is characterized in that, described speech chip is VC0968 chip.
4. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 1, it is characterized in that, described digital baseband is CX805-32 chip.
5. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 1, it is characterized in that, described Analog Baseband is CX20524 chip.
6. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 1, it is characterized in that, described analog switch is NLSA4684 chip.
7. a kind of GSM-R hand-held station with audio frequency processing capacity as claimed in claim 1, it is characterized in that, described power amplifier is LM48511 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039087.3U CN204350079U (en) | 2015-01-20 | 2015-01-20 | A kind of GSM-R hand-held station with audio frequency processing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520039087.3U CN204350079U (en) | 2015-01-20 | 2015-01-20 | A kind of GSM-R hand-held station with audio frequency processing capacity |
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| CN204350079U true CN204350079U (en) | 2015-05-20 |
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| CN201520039087.3U Active CN204350079U (en) | 2015-01-20 | 2015-01-20 | A kind of GSM-R hand-held station with audio frequency processing capacity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744424A (en) * | 2016-04-29 | 2016-07-06 | 乐视控股（北京）有限公司 | Earphone mode switching method, terminal and earphone |
| CN111050240A (en) * | 2018-10-15 | 2020-04-21 | 珠海格力电器股份有限公司 | Earphone mode switching method and device |
-
2015
- 2015-01-20 CN CN201520039087.3U patent/CN204350079U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744424A (en) * | 2016-04-29 | 2016-07-06 | 乐视控股（北京）有限公司 | Earphone mode switching method, terminal and earphone |
| WO2017185602A1 (en) * | 2016-04-29 | 2017-11-02 | 乐视控股（北京）有限公司 | Earphone mode switching method and electronic device |
| CN111050240A (en) * | 2018-10-15 | 2020-04-21 | 珠海格力电器股份有限公司 | Earphone mode switching method and device |
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