JPH031850B2 - - Google Patents
Info
- Publication number
- JPH031850B2 JPH031850B2 JP61116925A JP11692586A JPH031850B2 JP H031850 B2 JPH031850 B2 JP H031850B2 JP 61116925 A JP61116925 A JP 61116925A JP 11692586 A JP11692586 A JP 11692586A JP H031850 B2 JPH031850 B2 JP H031850B2
- Authority
- JP
- Japan
- Prior art keywords
- mode
- data
- radio
- signal
- signal processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000005236 sound signal Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/10—Arrangements for initial synchronisation
Landscapes
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、送信機の立上り時に相手局の受信機
で再生される不要音を低減するデータ伝送方式に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission system that reduces unnecessary sounds reproduced in a receiver of a remote station when a transmitter starts up.
音声モードとデータモードを有するMCAや
AVMシステムでは、信号処理器からデータを送
出する際（データモード）に、各々の無線機の立
上り時間の差によつて、データを送出するまでの
時間を可変する必要が有り、従来は第３図の様に
ビツト同期の長さを可変している。
MCA with voice mode and data mode
In an AVM system, when transmitting data from a signal processor (data mode), it is necessary to vary the time until the data is transmitted depending on the difference in rise time of each radio. As shown in the figure, the length of bit synchronization is variable.
この場合、基地局、移動局共にビツト同期を受
信し、フレーム同期を受信することによつて、信
号音ミユートがかかるが、それまでの間はデータ
受信者がスピーカで再生されてしまう。第３図の
斜線部はこの不要信号音となる部分を示してい
る。この場合、同期確立に必要な信号部分は致し
方ないが、無線機の立上り時間に応じて追加され
たビツト同期が不要受信音となることは好ましく
ない。 In this case, when both the base station and the mobile station receive bit synchronization and receive frame synchronization, a signal tone is muted, but until then, the signal tone is reproduced by the speaker of the data receiver. The shaded area in FIG. 3 indicates the area where this unnecessary signal sound occurs. In this case, although there is nothing that can be done about the signal portion necessary for establishing synchronization, it is undesirable that the bit synchronization added according to the rise time of the radio becomes unnecessary reception sound.
上述した点を改善するために、受信側でビツト
同期信号を検出してミユートをかける構成とする
ことも考えられるが、そのようにすると音声モー
ドで類似のパターンが出現したとき音声がとぎれ
る欠点がある。
In order to improve the above-mentioned problem, it is possible to configure the receiving side to detect the bit synchronization signal and apply muting, but this has the disadvantage that the audio will stop when a similar pattern appears in the audio mode. be.
本発明は、ビツト同期の長さは同期確立に必要
な長さとし、代りにデータモードに先行した無変
調の音声モードを設定して、不要な受信音の発生
を極力低減しようとするものである。 In the present invention, the length of bit synchronization is set to the length necessary to establish synchronization, and instead, an unmodulated voice mode is set prior to the data mode, in order to reduce the generation of unnecessary received sound as much as possible. .
本発明は、音声信号を送信する音声モードと信
号処理器からのデータを送信するデータモードと
を該信号処理器の制御で切換えるデータ伝送方式
において、該信号処理器から無線機に対し送信要
求を出して該データモードに移行するときは、そ
の前に該音声モードによる無変調状態を一定時間
経過するように制御することを特徴とするもので
ある。
The present invention provides a data transmission method in which an audio mode for transmitting an audio signal and a data mode for transmitting data from a signal processor are switched under the control of the signal processor, in which the signal processor issues a transmission request to a wireless device. The present invention is characterized in that, before switching to the data mode, a non-modulated state due to the voice mode is controlled to elapse for a certain period of time.
無線機はレベルによつて音声モードとデータモ
ードに区別しているので、無変調モードを設ける
ことは出来ないが、音声モードのままにしておけ
ば、マイクプレスを押さないかぎり無変調なの
で、無線機の立上り時間に対応する不要な受信音
の発生を防止することができる。
Since the radio distinguishes between voice mode and data mode depending on the level, it is not possible to set up a non-modulation mode, but if you leave it in voice mode, there will be no modulation unless you press the microphone press, so the radio will It is possible to prevent the generation of unnecessary received sound corresponding to the rise time of the signal.
第１図は本発明の一実施例を示すシステム構成
図で、送信側にはアンテナ１１、無線機１２、
CPU１３等があり、また受信側にはアンテナ２
１、無線機２２、CPU２３、スピーカ２４等が
ある。無線機１２，２２は送受信機能を有し、ま
たCPU１３，２３も両機能に関する信号処理の
プログラムを内蔵しているが、いずれも送信側と
受信側に関係した機能を主として示してある。送
信側のCPU１３は音声モードとデータモードの
切換え機能を有し、また受信側のCPU２３は無
線機２２を受信モードにしている。
FIG. 1 is a system configuration diagram showing an embodiment of the present invention, in which an antenna 11, a radio device 12,
There is a CPU 13, etc., and an antenna 2 on the receiving side.
1. There are a radio device 22, a CPU 23, a speaker 24, etc. The radios 12 and 22 have transmitting and receiving functions, and the CPUs 13 and 23 also have built-in signal processing programs related to both functions, but both mainly show functions related to the transmitting side and the receiving side. The CPU 13 on the transmitting side has a function of switching between voice mode and data mode, and the CPU 23 on the receiving side puts the radio 22 in the receiving mode.
無線機１２が送信モードになるのは相手方から
ポーリング信号を受けたとき、或いは自局のプレ
ススイツチ（図示せず）がオンとなつた場合、或
いは自局が相手方に対して任意的にデータを送信
する場合である。いずれの場合もCPU１３は無
線機１２に送信要求を出すが、最初は音声モード
の無変調状態にしておく。この状態を無線機１２
の立上りに必要な時間継続させてからデータモー
ドに切換えて、ビツト同期とフレーム同期の各信
号を同期確立に必要な時間だけ送信する。第２図
はこの説明図である。 The radio 12 enters the transmission mode when it receives a polling signal from the other party, or when its own station's press switch (not shown) is turned on, or when its own station voluntarily sends data to the other party. This is the case when sending. In either case, the CPU 13 issues a transmission request to the radio device 12, but initially leaves it in the non-modulated state of voice mode. In this state, the radio 12
After the signal continues for the time necessary for the rise of the signal, the mode is switched to data mode, and each bit synchronization and frame synchronization signal is transmitted for the time necessary to establish synchronization. FIG. 2 is an explanatory diagram of this.
このようにすると、音声モードの無変調状態は
受信音として再生されないので、受信側のスピー
カ２４から出力される不要な受信音は斜線で示す
同期信号部分だけとなり、送信側の立上り時間調
整に要する音声モードの無変調状態はスピーカ２
４で再生されずに済む。 In this way, since the non-modulated state of the audio mode is not reproduced as received sound, the unnecessary received sound output from the receiving side speaker 24 is only the synchronization signal portion shown by diagonal lines, which is necessary for the rise time adjustment on the transmitting side. In the non-modulated state of audio mode, speaker 2
4, it will not be played.
以上述べたように本発明によれば、AVMや
MCAのようなデータ伝送方式において、無線機
の立上りに要する時間に受信側で不要な受信音を
発生させずに済む利点がある。
As described above, according to the present invention, AVM and
A data transmission system such as MCA has the advantage that unnecessary reception sound is not generated on the receiving side during the time required for the radio to start up.
第１図は本発明の一実施例を示すシステム構成
図、第２図は本発明のデータ構成図、第３図は従
来のデータ構成図である。
図中、１２，２２は無線機、１３，２３は
CPU、２４はスピーカである。
FIG. 1 is a system configuration diagram showing an embodiment of the present invention, FIG. 2 is a data configuration diagram of the present invention, and FIG. 3 is a conventional data configuration diagram. In the figure, 12 and 22 are radio devices, and 13 and 23 are
CPU, 24 is a speaker.
Claims (1)
からのデータを送信するデータモードとを該信号
処理器の制御で切換えるデータ伝送方式におい
て、該信号処理器から無線機に対し送信要求を出
して該データモードに移行するときは、その前に
該音声モードによる無変調状態を一定時間経過す
るように制御することを特徴とするデータ伝送方
式。1. In a data transmission system in which an audio mode for transmitting audio signals and a data mode for transmitting data from a signal processor are switched under the control of the signal processor, the signal processor issues a transmission request to the radio and 1. A data transmission system characterized in that, before transitioning to a data mode, a non-modulated state due to the voice mode is controlled to elapse for a certain period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116925A JPS62272729A (en) | 1986-05-21 | 1986-05-21 | Data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61116925A JPS62272729A (en) | 1986-05-21 | 1986-05-21 | Data transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62272729A JPS62272729A (en) | 1987-11-26 |
| JPH031850B2 true JPH031850B2 (en) | 1991-01-11 |
Family
ID=14699074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61116925A Granted JPS62272729A (en) | 1986-05-21 | 1986-05-21 | Data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62272729A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106532A (en) * | 1987-10-19 | 1989-04-24 | Furuno Electric Co Ltd | Voice communication equipment |
-
1986
- 1986-05-21 JP JP61116925A patent/JPS62272729A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62272729A (en) | 1987-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06501359A (en) | Variable speaker silence based on received data | |
| JPH031850B2 (en) | ||
| JP2655548B2 (en) | Mobile radio equipment | |
| JP3156652B2 (en) | Mobile wireless communication device | |
| JP3178269B2 (en) | Narrowband wireless transceiver | |
| JP2003092537A (en) | Wireless microphone system | |
| JPS58164332A (en) | Automatic recording method | |
| JP2569160Y2 (en) | Gain control circuit for cordless telephone | |
| JP3080020B2 (en) | Digital wireless communication system | |
| JP2951974B2 (en) | Wireless telephone equipment | |
| JPH03232349A (en) | Radio telephone system | |
| JPH0555948A (en) | Communication equipment | |
| KR100714572B1 (en) | FM transmission and reception terminal | |
| JPH03764Y2 (en) | ||
| JPH06311082A (en) | Radio communication machine | |
| JP2545004Y2 (en) | Transmission / reception terminal device | |
| JPH11112458A (en) | Data transmission method | |
| JP2002164832A (en) | Wireless communication device | |
| JPH0136371Y2 (en) | ||
| JPH0570037U (en) | Radio with automatic identification device | |
| JP2000269852A (en) | Wireless communication system | |
| JPH03208443A (en) | cordless telephone device | |
| JPH03248629A (en) | Fm communication equipment | |
| JPH0710049B2 (en) | Transmission power control method | |
| JPH04316225A (en) | Mobile radio communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |