JP2596982B2 - Multi-channel receiving radio paging receiver - Google Patents
Multi-channel receiving radio paging receiverInfo
- Publication number
- JP2596982B2 JP2596982B2 JP63188040A JP18804088A JP2596982B2 JP 2596982 B2 JP2596982 B2 JP 2596982B2 JP 63188040 A JP63188040 A JP 63188040A JP 18804088 A JP18804088 A JP 18804088A JP 2596982 B2 JP2596982 B2 JP 2596982B2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- paging receiver
- radio paging
- counter
- receiver
- 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 - Fee Related
Links
Landscapes
- 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、受信チャネルを自動的に切り替える機能を
持った複数チャネル受信式無線呼出用受信機に関するも
のである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-channel radio paging receiver having a function of automatically switching a reception channel.
〔従来の技術〕 無線呼出方式において、距離的に接近しているサービ
スエリアについては、干渉を防ぐため基地局ごとに異な
る周波数のチャネルを用いて呼出を行なう方式が採られ
ている。[Prior Art] In a radio paging method, a method of paging using a channel of a different frequency for each base station is used for a service area that is close in distance in order to prevent interference.
そして、このような系で用いる無線呼出用受信機は、
複数チャネルを受信することが可能なように作られてお
り、受信機携帯者が異なるサービスエリアに移動したと
きには、受信チャネルを切り替えて使用する。And the radio paging receiver used in such a system,
It is designed to be able to receive a plurality of channels, and when the receiver carrier moves to a different service area, the receiving channel is switched and used.
そして、このような従来の複数チャネル受信式無線呼
出用受信機では、受信チャネルの切替は、利用者が自分
が今、居る場所を意識して受信機の局部発振器の周波数
を手動で切り替える等により適切な受信チャネルへ切り
替える方法が採られていた。In such a conventional multi-channel reception type radio paging receiver, switching of the reception channel is performed by the user manually switching the frequency of the local oscillator of the receiver while being aware of the place where the user is now. A method of switching to an appropriate reception channel was adopted.
上述したような従来の複数チャネル受信式無線呼出用
受信機では、利用者が常に自分の所在するサービスエリ
アを認識している必要があり、また、受信チャネルの切
り替えを怠った場合には、サービスが受けられなくなる
という問題点があった。In the above-mentioned conventional multi-channel reception type paging receiver, the user needs to always know the service area where he / she is located. There was a problem that it could not be received.
本発明は、このような従来の問題点に鑑み、受信チャ
ネルの切替を自動化し、利用者が自分がいる地域を意識
せずに使用できる無線呼出用受信機を提供することを目
的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object to provide a radio paging receiver that can automatically switch a reception channel and can be used without a user being aware of an area where the user is.
本発明によれば、上述の目的は前記特許請求の範囲に
記載した手段により達成される。According to the present invention, the above objects are achieved by the means as set forth in the claims.
すなわち、本発明は局部発振回路の周波数を切り替え
ることにより、複数のチャネルを受信することが可能
で、かつ、間欠受信を行なうごとく構成された無線呼出
用受信機であって、受信機を受信状態にする都度、歩進
するカウンタを設け、該カウンタの計数値に応じて、局
部発振回路の周波数を切り替える複数チャネル受信式無
線呼出用受信機である。That is, the present invention is a radio paging receiver that can receive a plurality of channels by switching the frequency of a local oscillation circuit, and is configured to perform intermittent reception. The present invention is a multi-channel reception type radio paging receiver which is provided with a counter which increments each time the frequency of the local oscillation circuit is switched in accordance with the count value of the counter.
本発明によれば、複数チャネル受信式無線呼出用受信
機を間欠的に受信状態にする度にカウンタを歩進せし
め、該カウンタの値に応じて局部発振回路の周波数を切
り替えているので、受信機は間欠的に受信状態になる都
度異なるチャネルを受信することになる。According to the present invention, the counter is incremented each time the multi-channel reception type paging receiver is intermittently set to the reception state, and the frequency of the local oscillation circuit is switched according to the value of the counter. The device receives a different channel each time the device enters the reception state intermittently.
そして、カウンタが一巡したとき、最初のチャネルに
戻り、また、順次異なるチャネルを受信する。すなわ
ち、各チャネルを自動的に走査して受信する動作を反復
して行なうことになる。Then, when the counter has completed one round, the channel returns to the first channel, and different channels are sequentially received. That is, the operation of automatically scanning and receiving each channel is repeatedly performed.
第１図は、本発明の一実施例のブロック図であって、
１はシンセサイザ発振器、２カウンタ、３は間欠受信制
御回路、４はデコード回路、５は復調器、６はIF増幅
器、７は混合器、８はRF増幅器を表わしている。FIG. 1 is a block diagram of one embodiment of the present invention,
1 is a synthesizer oscillator, 2 counter, 3 is an intermittent reception control circuit, 4 is a decode circuit, 5 is a demodulator, 6 is an IF amplifier, 7 is a mixer, and 8 is an RF amplifier.
同図において、シンセサイザ発振器１はカウンタ２に
設定されているチャネル番号に応じた発振周波数が設定
される。３は間欠受信制御回路であり、あらかじめ定め
られた周期で受信機の電源をON−OFFするとともに、受
信機電源をOFFとするタイミングでカウンタパルスを発
生し、カウンタ２の値を一つ増加させる。In the figure, an oscillation frequency according to a channel number set in a counter 2 is set in a synthesizer oscillator 1. Reference numeral 3 denotes an intermittent reception control circuit which turns on and off the power of the receiver at a predetermined cycle, generates a counter pulse at the timing when the power of the receiver is turned off, and increases the value of the counter 2 by one. .
以上説明したように、本実施例では受信機の電源が１
回ON−OFFされるごとに受信チャネルが順次変化して全
チャネルを自動的に受信できる。As described above, in this embodiment, the power of the receiver is 1
The receiving channel changes successively each time it is turned on and off, so that all channels can be automatically received.
上述した実施例の動作の例を流れ図として第２図に示
す。FIG. 2 is a flowchart showing an example of the operation of the embodiment described above.
同図において、f1〜f4は受信チャネルを示しており、
また、カウンタ出力の１〜５はチャネル番号に対応す
る。In the figure, f 1 to f 4 indicate reception channels,
The counter outputs 1 to 5 correspond to channel numbers.
第１図に示した実施例の構成において、デコード回路
の出力を用いて、鳴音式の無線呼出用受信機とすること
も、また、表示式の無線呼出用受信機として実現するこ
ともできる。In the configuration of the embodiment shown in FIG. 1, the output of the decoding circuit can be used as a ringing-type radio paging receiver or a display-type radio paging receiver. .
第１図に示した実施例ではカウンタが４進の場合を示
しているが、これは４進に限るものではなく、走査した
いチャネル数に応じて、任意の進数のカウンタを使用す
ればよい。Although the embodiment shown in FIG. 1 shows a case where the counter is a quaternary number, the present invention is not limited to the quaternary number, and an arbitrary numbered counter may be used according to the number of channels to be scanned.
また、本実施例においては受信機の局部発振器として
シンセサイザ発振器を用いた場合を示しているが、これ
は、複数の水晶発振子の切替による発振器であっても同
様の制御によって同じ効果を得ることができる。In this embodiment, the case where a synthesizer oscillator is used as the local oscillator of the receiver is shown. However, the same effect can be obtained by the same control even with an oscillator by switching a plurality of crystal oscillators. Can be.
さらに、間欠受信制御回路３によって制御される間欠
受信の周期については、無線呼出用信号のバースト長よ
りも短い周期とするか、連続的に送信される無線呼出用
信号に対して、自己あての信号が送出される可能性のあ
る周期に同期して間欠受信を行なうなどの方法を採るこ
とができる。Further, the period of the intermittent reception controlled by the intermittent reception control circuit 3 is set to a period shorter than the burst length of the radio paging signal or the self-addressed radio paging signal is transmitted continuously. A method such as performing intermittent reception in synchronization with a cycle in which a signal may be transmitted may be employed.
以上説明したように、本発明による複数チャネル受信
式無線呼出用受信機では、受信可能なチャネルを周期的
に走査して、自動的に受信するので利用者が自己の位置
を認識してチャネルを手動で切り替える必要がないか
ら、無線呼出用受信機の利便性が一層向上する利点があ
る。As described above, in the multi-channel reception type paging receiver according to the present invention, receivable channels are periodically scanned and received automatically, so that the user recognizes his / her own position and identifies the channel. Since there is no need to manually switch, there is an advantage that the convenience of the radio pager is further improved.
第１図は本発明の一実施例のブロック図、第２図は実施
例の動作の例を示す流れ図である。 １……シンセサイザ発振器、２……カウンタ、３……間
欠受信制御回路、４……デコード回路、５……復調器、
６……IF増幅器、７……混合器、８……RF増幅器FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a flowchart showing an example of the operation of the embodiment. 1 ... synthesizer oscillator, 2 ... counter, 3 ... intermittent reception control circuit, 4 ... decoding circuit, 5 ... demodulator,
6: IF amplifier, 7: Mixer, 8: RF amplifier
Claims (1)
より、複数のチャネルを受信することが可能で、かつ、
間欠受信を行なうごとく構成された無線呼出用受信機で
あって、 受信機を受信状態にする都度、歩進するカウンタを設
け、該カウンタの計数値に応じて、局部発振回路の周波
数を切り替えることを特徴とする複数チャネル受信式無
線呼出用受信機。The present invention can receive a plurality of channels by switching the frequency of a local oscillation circuit, and
A radio paging receiver configured to perform intermittent reception, comprising: providing a stepping counter each time the receiver is set to a reception state, and switching a frequency of a local oscillation circuit according to a count value of the counter. A paging receiver characterized by the following features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63188040A JP2596982B2 (en) | 1988-07-29 | 1988-07-29 | Multi-channel receiving radio paging receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63188040A JP2596982B2 (en) | 1988-07-29 | 1988-07-29 | Multi-channel receiving radio paging receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0239636A JPH0239636A (en) | 1990-02-08 |
| JP2596982B2 true JP2596982B2 (en) | 1997-04-02 |
Family
ID=16216622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63188040A Expired - Fee Related JP2596982B2 (en) | 1988-07-29 | 1988-07-29 | Multi-channel receiving radio paging receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596982B2 (en) |
-
1988
- 1988-07-29 JP JP63188040A patent/JP2596982B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239636A (en) | 1990-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |