CN1220566A - Mobile telephone circuit quality alarming apparatus - Google Patents
Mobile telephone circuit quality alarming apparatus Download PDFInfo
- Publication number
- CN1220566A CN1220566A CN98124532A CN98124532A CN1220566A CN 1220566 A CN1220566 A CN 1220566A CN 98124532 A CN98124532 A CN 98124532A CN 98124532 A CN98124532 A CN 98124532A CN 1220566 A CN1220566 A CN 1220566A
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- CN
- China
- Prior art keywords
- alarm
- circuit
- pseudo noise
- signal
- level
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides an alarm notice device that informs a talker of a place with excellent communication environment efficiently. A voice processing means conducts voice processing to provide an output of a voice signal. A channel deterioration predict signal generating means generates a channel deterioration prediction signal predicting channel deterioration during a speech. A pseudo noise generating means generates pseudo noise. An alarm notice means controls variably an output level of pseudo noise in response to a level of the channel deterioration prediction signal and superimposes the pseudo noise on the voice signal to conduct alarm notice.
Description
The present invention relates generally to a kind of alarm equipment that is used to notify its circuit quality of operator of mobile phone.
Because mobile phone and PHS (personal handyphone system) popularize, the user trends towards variation and complicated more to the demand of these mobile communication equipments, causes having the exploitation and the commercialization of various functional products.
For example, one of function that realizes in digital mobile phone is: when received signal intensity during telephone relation in certain value (is for example indicated (RSSI) step-down,-108dBm) time, the alerting tone with certain level is superimposed upon on this received signal, so that utilize the sound notification mobile phone user.
This alerting tone makes the mobile phone user know the level of present receiving sensitivity.If the user moves to another place and the radio propagation state further worsens, in case then receiving sensitivity drops to and is lower than its threshold value, this phone just is disconnected.
But, in above-mentioned related-art technology, the radio reception environment good and bad must by the sounding of the alerting tone of certain level or not sounding judge.
More particularly, the problem that related-art technology exists is that because the characteristic of alerting tone does not change, when the mobile phone user attempted to arrive the place with good radio propagation condition, this user must seek such place aimlessly.
Therefore the purpose of this invention is to provide a kind of alarm equipment, be used for notifying effectively the mobile phone user place of good communication environment.
In order to realize the present invention and according to an aspect of the present invention, a kind of alarm equipment is provided, is used to notify operator's telephone circuit quality of mobile phone, comprising: audio processing apparatus, be used for that the speech data that receives is carried out speech and handle, so that the output voice signal; Circuit worsens the prediction signal generation device, is used to produce circuit and worsens prediction signal, the deterioration of this signal estimation circuit during telephone relation; Pseudo-noise generating apparatus is used to produce pseudo noise; And alarm device, be used for controlling the output level of pseudo noise with changing and pseudo noise being superimposed upon on the voice signal so that alarm to be provided according to the level that circuit worsens prediction signal.
Audio processing apparatus carries out speech to the speech data that receives to be handled with the output voice signal.Circuit worsens the prediction signal generation device and produces circuit deterioration prediction signal, and this signal estimation circuit worsens during telephone relation.Pseudo-noise generating apparatus produces pseudo noise.Alarm device is controlled the output level of pseudo noise according to the level of circuit deterioration prediction signal with changing and controlled pseudo noise is superimposed upon on the voice signal, and therefore alarm is provided.
Detailed description of the present invention in conjunction with the accompanying drawings, it is clear that these and other objects of the present invention will become, in the accompanying drawing:
Fig. 1 is the block diagram of explanation as the operation principle of the alarm equipment of a preferred embodiment of the present invention realization:
Fig. 2 is the flow chart of the operating process of expression alarm equipment shown in Figure 1;
Fig. 3 is the block diagram that the internal structure of the digital mobile telephone that adopts alarm equipment shown in Figure 1 is described;
Fig. 4 is the block diagram that the voice processor of alarm equipment shown in Figure 1 is adopted in explanation; With
Fig. 5 is the figure that explanation changes an example of control table.
The present invention narrates in more detail with example with reference to the accompanying drawings.Referring now to Fig. 1,, it is good or bad place that alarm equipment 10 is notified mobile phone user's mobile phone communications environment.
Audio processing apparatus 11 processed voice data are with the output voice signal.Circuit worsens the circuit degraded signal during prediction signal generation device 12 produces the prediction telephone relation.Pseudo-noise generating apparatus 13 produces pseudo noise.Alarm device 14 is controlled the output level of pseudo noise according to the level of circuit deterioration prediction signal with changing and pseudo noise is superimposed upon on the voice signal so that carry out alarm operation.
Narrate the operation of alarm equipment 10 below with reference to the flow chart shown in Figure 2 of the operating process that alarm equipment 10 is described.
At step S1, the voice signal that audio processing apparatus 11 processed voice data and output obtain.At step S2, according to the RSSI (indication of received signal intensity) or FER (FER (Floating Error Rate)) or the BER (error rate) that receive data, circuit worsens prediction signal generation device 12 and produces circuit deterioration prediction signal, is used for the deterioration of prediction circuit during telephone relation.At step S3, pseudo-noise generating apparatus 13 produces white noise as pseudo noise.At step S4, alarm device 14 is controlled the output level of pseudo noise according to the level of circuit deterioration prediction signal with changing and pseudo noise is superimposed upon on the voice signal, the speech that output obtains, thus alarm is provided.
Narrate the internal structure of digital mobile telephone referring to Fig. 3.Antenna coupler 102 is carried out the transmission/reception Coupling Control operation on antenna 101.Receiver 103a will downconvert to base band from radio frequency at the signal that antenna 101 receives.
The voice signal that baseband processor 104 demodulation sign indicating numbers are received.105 pairs of voice processors are carried out speech by baseband processor 104 decoded speech signals and are handled, and export the analogue data that obtains from loud speaker (SP) 106.On the other hand, the speech from microphone (MIC) 107 inputs is transformed to digital voice data by voice processor 105.Digital voice data is by baseband processor 104 codings and modulation.Transmitter 103b up-converts into radio frequency with modulated voice signal from base band, and exports the voice signal that obtains from antenna 101.
108 pairs of whole digital mobile telephone 100 executive control operations of controller for example comprise the operation of telephone set volume controlled.Operator's parts 109 are the user interfaces that for example comprise interchanger and LCD (LCD).
Narrate a preferred embodiment below, alarm equipment 10 wherein according to the present invention is applied to digital mobile telephone 100.
Fig. 4 is the interior block diagram of explanation voice processor 105 or the interior block diagram according to alarm equipment 10 of the present invention that is applied to the described voice processor 105 of Fig. 3.
In operation, 11 pairs of speech datas from baseband processor shown in Figure 3 104 of voice decoder are carried out speech and are handled, and the speech data that will handle is transformed to analog signal.More particularly, speech is handled and is comprised the predictive coding operation, such as VSELP (vector sum excited linear prediction), ψ SELP or QSELP.
The circuit that is included in the controller 108 worsens prediction signal generation device 12 from receiver 103a reception RSSI information shown in Figure 3.Then, 12 generations of circuit deterioration prediction signal generation device worsen prediction signal corresponding to the direct current signal of RSSI level as circuit.
The circuit that is included in the controller 108 worsens FER (FER (Floating Error Rate)) or the BER (error rate) that prediction signal generation device 12 receives received data, and the direct current signal that produces then corresponding to FER or BER worsens prediction signal as circuit.
Variable gain amplifier 14a uses from the circuit deterioration prediction signal of circuit deterioration prediction signal generation device 12 and controls from the gain of the white noise of white noise generator 13 outputs with changing.
Utilize adder 14b to be added to from the analogue voice signal of voice decoder 11 outputs from the white noise of variable gain amplifier 14a output.The speech that comprises white noise is from voice processor 105 outputs.
The variation control operation that utilizes variable control table narration worsens prediction signal according to circuit level to be undertaken below by the output level of 14 pairs of pseudo noises of alarm device.
Referring to Fig. 5, the figure shows an example that changes control table.Change control table 200 and be stored among the ROM (read-only memory), this memory is included in the controller 108.
Relation between the RSSI of variation control table 200 expression indicating circuits deterioration prediction signal level and the variable amplifier gain of indication pseudo noise output level.For example, if RSSI is not more than-85dBm, then variable amplifier gain is-60dB, and if RSSI is not more than-95dBm, then the variable amplifier gain is-30dB.Therefore, when the RSSI value reduced, the white noise gain increased.
Be noted that if not utilizing RSSI but utilize FER or BER carries out variable control that then when FER or BER value increased, the white noise gain also increased.
As mentioned above, alarm equipment 10 according to the present invention is constituted as the level that worsens prediction signal according to circuit and controls the output level of pseudo noise with changing and controlled pseudo noise is superimposed upon on the voice signal, so that alarm to be provided.
This novel structure allows the user to utilize the amplitude of the noise on the speech data that is added to reception to judge the radio propagation state.Therefore, the user can move to seek communication environment place preferably in the less direction of noise.
In addition, the user can utilize the sense of hearing to judge during telephone relation and seek communication environment place preferably.
And the pseudo noise of the similar noise that produces in the analog mobile telephone machine in ferroelectric magnetic field of sounding is superimposed on the voice signal of reception.Therefore, if the user dislikes pseudo noise stack, can suppress pseudo noise by the user interface in the path on the speech data of selecting can on/off to be added to reception.
In the description of so far being carried out, white noise is used as pseudo noise.Those skilled in the art is clear, for example also can use the mono signal alerting tone such as PDC.
As described and according to the present invention, alarm equipment is constituted as the level that worsens prediction signal according to circuit and controls the output level of pseudo noise with changing and controlled pseudo noise is superimposed upon on the voice signal so that alarm to be provided.This novel structure is sent the alarm with the radio reception environmental change, therefore notifies telex network environment place preferably effectively.
Though the preferred embodiments of the present invention have used concrete term to narrate, this narration just is used for illustrative purposes, and should be appreciated that under the spirit and scope that do not break away from appended claims and can make amendment and change.
Claims (7)
1. alarm equipment that is used to notify operator's telephone circuit quality of mobile phone comprises:
Audio processing apparatus is used for that the speech data that receives is carried out speech and handles, with the output voice signal;
Circuit worsens the prediction signal generation device, is used to produce circuit and worsens prediction signal, and the circuit of this signal estimation during telephone relation worsens;
Pseudo-noise generating apparatus is used to produce pseudo noise; With
Alarm device is used for controlling according to the level that described circuit worsens prediction signal the output level of described pseudo noise with changing, and described pseudo noise is superimposed upon on the described voice signal so that alarm to be provided.
2. alarm equipment according to claim 1, wherein said circuit worsen the prediction signal generation device and produce described circuit deterioration prediction signal according to the signal strength signal intensity indication level that receives.
3. alarm equipment according to claim 2, wherein, for alarm is provided, the described alarm device described pseudo noise that superposes, the level of wherein said pseudo noise increases with the minimizing of the signal strength signal intensity indication level of described reception.
4. alarm equipment according to claim 1, wherein said circuit worsen the prediction signal generation device and produce described circuit deterioration prediction signal according to the error rate that receives data.
5. alarm equipment according to claim 4, wherein said alarm device provides alarm by the described pseudo noise that superposes to described voice signal, and the level of described pseudo noise increases along with the increase of described error rate.
6. alarm equipment according to claim 1, wherein said pseudo-noise generating apparatus produce white noise as described pseudo noise.
7. alarm equipment according to claim 1, wherein said alarm device superposes described pseudo noise to voice signal according to the table of the output level of the level of listing circuit deterioration prediction signal and described pseudo noise, so that alarm to be provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9285316A JPH11122197A (en) | 1997-10-17 | 1997-10-17 | Alarm notice device |
| JP285316/97 | 1997-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1220566A true CN1220566A (en) | 1999-06-23 |
Family
ID=17689967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98124532A Pending CN1220566A (en) | 1997-10-17 | 1998-10-16 | Mobile telephone circuit quality alarming apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH11122197A (en) |
| KR (1) | KR19990037141A (en) |
| CN (1) | CN1220566A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006054789A (en) | 2004-08-16 | 2006-02-23 | Denso Corp | Audio output device |
| JP5056067B2 (en) | 2007-02-26 | 2012-10-24 | 株式会社デンソー | Dozing alarm device |
| US7589658B2 (en) * | 2008-02-05 | 2009-09-15 | Freescale Semiconductor, Inc. | Analog-to-digital converter with variable gain and method thereof |
-
1997
- 1997-10-17 JP JP9285316A patent/JPH11122197A/en active Pending
-
1998
- 1998-10-16 KR KR1019980043272A patent/KR19990037141A/en not_active Application Discontinuation
- 1998-10-16 CN CN98124532A patent/CN1220566A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990037141A (en) | 1999-05-25 |
| JPH11122197A (en) | 1999-04-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |