JPH08116573A - Cordless telephone system - Google Patents
Cordless telephone systemInfo
- Publication number
- JPH08116573A JPH08116573A JP7214277A JP21427795A JPH08116573A JP H08116573 A JPH08116573 A JP H08116573A JP 7214277 A JP7214277 A JP 7214277A JP 21427795 A JP21427795 A JP 21427795A JP H08116573 A JPH08116573 A JP H08116573A
- Authority
- JP
- Japan
- Prior art keywords
- call
- handset
- signal
- called
- calling
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、子機間内線通話を
可能にするコードレス電話方式に関し、特に電池の消耗
を少くすると共に、子機間内線通話の接続に要する時間
を短縮することができる家庭用デジタルコードレス電話
方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone system that enables extension telephone communication between handset units, and in particular reduces battery consumption and shortens the time required for connection of extension telephone connection between handset units. The present invention relates to a home digital cordless telephone system.
【０００２】[0002]
【従来の技術】コードレス電話として、最初にアナログ
コードレス電話は普及し、家庭用を中心に様々な機能の
コードレス電話機器が使用されている。家庭用コードレ
ス電話機器の中には、複数の子機を使用することがで
き、かつ子機相互間で親機を通して子機間での内線電話
ができるものもある。2. Description of the Related Art As a cordless telephone, an analog cordless telephone has first spread, and cordless telephone devices having various functions are mainly used for home use. Some home cordless telephone devices are capable of using a plurality of cordless handsets and are capable of making an extension telephone between the cordless handsets between the cordless handsets.
【０００３】この子機間内線通話を行う場合、各子機と
親機との間の無線通話路はそれぞれ独立に接続する必要
があるがめ、親機には少くとも２台の無線機を搭載する
必要がある。When making an extension call between the slaves, it is necessary to connect the wireless communication paths between the slaves and the master independently of each other, and at least two radios are installed in the master. There is a need to.
【０００４】最近、わが国においてもデジタルコードレ
ス電話の実用化が行われ、（財）電波システム開発セン
ターにおいて第二世代コードレス電話システムの標準規
格（ＲＣＲ ＳＴＤ−２８）が策定された。Recently, digital cordless telephones have also been put to practical use in Japan, and the standard (RCR STD-28) of the second generation cordless telephone system has been established by the Radio System Development Center.
【０００５】この第二世代コードレス電話システムは４
チャネル多重の時分割復信（ＴＤＤ）方式を採用してお
り、上述の子機間内線通話は、親機の無線機が４チャネ
ル対応であれば１台の無線機だけで実現できるが、４チ
ャネル対応の無線機は高速切替え可能な周波数シンセサ
イザを持つ必要がある。This second generation cordless telephone system has four
The channel-division time division duplex (TDD) system is adopted, and the above-mentioned extension call between slave units can be realized by only one radio unit if the master unit's radio unit supports four channels. Corresponding radios must have a frequency synthesizer that can switch at high speed.
【０００６】この種のコードレス電話として、特開平１
−１３６４３７号公報に開示されたものがあるが、これ
は、発呼子機が被呼子機を呼び出すときに、複数の通話
チャネルから空いている通話チャネルを検出し、その
後、発呼子機の送信周波数を被呼子機における制御チャ
ネルの受信周波数に、発呼子機の受信周波数を被呼子機
における制御チャネルの送信周波数にそれぞれ設定し、
通過帯域もそれにあわせてそれぞれ切替え、被呼子局に
対し、制御チャネルを用いて検出した通話チャネルを指
定し、この通話チャネルを用いて発呼子機と被呼子機と
の間で相互に内線通話を行うものである。この方式では
子機相互の通話に際しても、親機の指示にしたがって通
話チャネルの切換を行っている。A cordless telephone of this type is disclosed in Japanese Patent Laid-Open No.
There is one disclosed in Japanese Laid-Open Patent Publication No. 136437, in which when a calling handset calls a called handset, a free calling channel is detected from a plurality of calling channels, and then a transmitting frequency of the calling handset is used. Is set to the reception frequency of the control channel in the called station, the reception frequency of the calling station is set to the transmission frequency of the control channel in the called station, respectively.
The pass band is also switched accordingly, and the call channel detected by using the control channel is specified for the called station, and the extension call is made between the calling station and the called station by using this calling channel. It is something to do. In this method, even when a call is made between the slaves, the call channel is switched according to the instruction from the master.
【０００７】また、他の例としては、特開平２−２４１
１２９号公報に開示されたものがある。これは、所定ゾ
ーンの子機によるエリア内の任意の子機の呼出しに際
し、まず発呼子機と着呼専用親機との間で発呼要求、応
答発呼が行われ、それらが同一チャネルに設定されてリ
ンク状態とされる。その後発呼子機による内線番号入力
に応じ、着呼専用親機にて各ゾーンの発呼専用親機の内
線番号が自動ダイヤルされる。これにより内線番号のダ
イヤル信号が交換機に送出され、交換機からは呼び出し
音信号が各ゾーンの発呼専用親機および発呼子機に送出
される。発呼子機により着呼子機のＩＤコードが入力さ
れると、そのＩＤコードが着呼専用親機および交換機を
介して各ゾーンの発呼専用親機側に送出され、そのＩＤ
コードが当該ゾーンの子機に対して送信、発呼される。
そのＩＤコードに該当する子機により発呼が行われる
と、その発呼が当該ゾーンの発呼専用親機に受けられ、
そのゾーンの発呼専用親機と被呼子機が同一チャネルに
設定されリンク状態とされる。このよにして、発呼子機
と被呼子機とが着呼専用親機、交換機および発呼専用親
機により接続され、子機相互の通話が行われる。Another example is Japanese Patent Laid-Open No. 2-241.
There is one disclosed in Japanese Patent No. 129. This is because when a slave unit in a predetermined zone calls an arbitrary slave unit in the area, first, a call request and a response call are made between the calling slave unit and the incoming call-only master unit, and they are sent to the same channel. The link status is set. After that, in response to the input of the extension number by the calling handset, the extension of the calling-only base unit of each zone is automatically dialed by the incoming-call-only base unit. As a result, the dial signal of the extension number is sent to the exchange, and the ringing tone signal is sent from the exchange to the call-dedicated master unit and the call-providing handset in each zone. When the ID code of the called terminal is input by the calling terminal, the ID code is sent to the calling master side of each zone via the called master terminal and the exchange, and the ID
The code is transmitted and called to the child device in the zone.
When a call is made by the slave unit corresponding to the ID code, the call is received by the call-dedicated master unit in the zone,
The calling-only master unit and the called slave unit in the zone are set to the same channel and put into a linked state. In this way, the calling sub-unit and the called sub-unit are connected by the call-dedicated master unit, the exchange, and the call-dedicated master unit, and the cordless handsets communicate with each other.
【０００８】この方式でも子機は親機の制御にしたがっ
て通話チャネルへのチャネル切換を行うようになってい
る。Even in this system, the slave unit is designed to switch the channel to the communication channel under the control of the master unit.
【０００９】[0009]
【発明が解決しようとする課題】前述した４チャネル多
重の時分割復信（ＴＤＤ）方式における４チャネル対応
の無線機は高速切替え可能な周波数シンセサイザを必要
とするために高価なものになってしまう問題がある。The above-mentioned four-channel time-division duplex (TDD) system radio equipment corresponding to four channels requires a frequency synthesizer capable of high-speed switching and becomes expensive. There is.
【００１０】また、子機間直接通信機能を利用する場合
には、親機に４チャネル対応の無線機を装備しなくとも
子機間内線通話が可能となるが、通常、子機は親機から
の自分宛の着信信号を制御用キャリアにて待ち受ける必
要があり、子機間直接通話を行うためには何らかの操作
を行って子機間直接通話のモードに移行することになる
ため、子機間直接通話機能により子機間内線通話を行お
うとした場合、予め口頭で発信側および着信側双方の子
機を子機間直接通話モードに移行させるようにするか、
子機が制御用キャリアと子機間通信用キャリアの両方で
待受け受信できるようにしなければならない。When the direct communication function between the slave units is used, extension communication between the slave units is possible even if the master unit is not equipped with a 4-channel wireless device. It is necessary for the control carrier to wait for the incoming signal addressed to itself, and in order to make a direct call between the handset units, some operation is performed and the mode is switched to the direct call mode between the handset units. If you try to make an extension call between handset units using the direct call function, you can either verbally switch both handset and callee side handset units to the direct handset call mode.
The handset must be able to receive and receive by both the control carrier and the inter-handset communication carrier.
【００１１】前者の場合には無線通信の利便性を活かす
ことができず不便であり、後者に場合は制御用キャリア
のみを間欠受信する場合に比べて電池の消耗が大きくな
る。さらに、標準規格ＲＣＲ ＳＴＤ−２８に示されて
いる子機間直接通話の方式では、子機間直接通話を起動
する発呼子機が子機間直接通話用の無線キャリアとして
割り当てられている１０波の中からキャリアセンスによ
り空いているキャリアを選択し、そこで被呼子機の識別
符号を含む呼出信号を送信する。一方、１０波のうち呼
出信号がどのキャリアで、いつ送信されるか特定できな
いため、被呼子機は自分宛の呼出信号が送られていない
かどうか、１０波のキャリアを常時順順とスキャンして
いる必要がある。このため、効率的な間欠受信動作を行
うことができず、そのために電池の消耗が大きく長時間
動作させることが困難であると共に、接続に要する時間
が長くなってしまう問題がある。In the former case, the convenience of wireless communication cannot be utilized, which is inconvenient, and in the latter case, the battery consumption becomes larger than that in the case where only the control carrier is intermittently received. Further, in the method of direct call between handset units indicated in the standard RCR STD-28, the calling handset that activates the direct call between handset units is assigned as a radio carrier for direct call between handset units, and the frequency is 10 waves. From among the above, a vacant carrier is selected by carrier sense, and a ringing signal including the identification code of the called station is transmitted there. On the other hand, since it is not possible to specify which carrier and when the ringing signal is transmitted out of the 10 waves, the called machine always scans the 10 waves carrier in order without checking whether the ringing signal addressed to itself is transmitted. Need to be. For this reason, there is a problem in that an efficient intermittent reception operation cannot be performed, the battery is consumed so much that it is difficult to operate for a long time, and the time required for connection becomes long.
【００１２】本発明はこのような背景のもとに行われた
もので、低コストで、電池を節約することができると共
に、接続に要する時間を短縮することができるコードレ
ス電話方式を提供することを目的とする。The present invention has been made under such a background, and provides a cordless telephone system which can save the battery at a low cost and can shorten the time required for connection. With the goal.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に、本発明の主たる態様によれば、有線電話回線に固定
的に接続された親機と、この親機と無線接続される複数
の子機とを備えたコードレス電話方式において、前記子
機の一つである発呼子機は、他の一つの被呼子機間にお
ける通話を要求する信号を前記親機が待機する無線チャ
ネルで前記親機に対して送信する手段と、被呼子機との
間で直接に通話することができる通話チャネルで被呼子
機を呼び出す信号を被呼子機に対して送信する手段とを
備え、前記親機は、前記発呼子機からの通話を要求する
信号を受信して被呼子機が待機する無線チャネルで子機
間の直接通話を要求する信号を被呼子機に対して送信す
る手段を備え、前記被呼子機は、前記親機からの直接通
話を要求する信号を受信して起動され、前記通話チャネ
ルで前記発呼子機からの被呼子機を呼び出す信号を受信
する手段を備えたことを特徴とするコードレス電話方式
が提供される。To achieve the above object, according to a main aspect of the present invention, a master unit fixedly connected to a wired telephone line and a plurality of master units wirelessly connected to the master unit. In a cordless telephone system with a slave unit, a calling slave unit, which is one of the slave units, uses a radio channel in which the master unit waits for a signal requesting a call between another one of the called slave units. And a means for transmitting a signal for calling the called child device on a call channel capable of directly talking to the called child device to the called child device. A means for receiving a signal requesting a call from the calling handset and transmitting a signal for requesting a direct call between the handset to the called handset on a wireless channel in which the called handset waits. The calling device is a signal requesting a direct call from the master device. Received is activated, a cordless telephone system which is characterized in that it comprises means for receiving a signal to call the object whistle machine from the calling whistle machine in the call channel is provided.
【００１４】上記の主態様に関連して、本発明は次の実
施態様を有する。In relation to the main aspects described above, the present invention has the following embodiments.
【００１５】すなわち、上記主態様の被呼子機間におけ
る通話を要求する信号は被呼子機の識別情報を含むこと
が望ましい。That is, it is desirable that the signal requesting a call between the called slaves of the above-mentioned main mode includes identification information of the called slaves.
【００１６】また、主態様における通話チャネルで前記
被呼子機を呼び出す信号を受信する手段は複数の通話チ
ャネルにわたりその信号を探索する手段を含むことがで
き、さらに、被呼子機間における通話を要求する信号は
前記被呼子機を呼び出す信号を送信する通話チャネルの
情報を含むことができ、されにまた、コードレス電話の
通信方式としてディジタル無線通信方式が適用されるこ
とが望ましい。Further, the means for receiving the signal for calling the called handset in the call channel in the main mode can include means for searching the signal over a plurality of call channels, and further, requesting a call between the called handsets. The signal to be transmitted may include information on a communication channel for transmitting a signal to call the called machine, and it is preferable that a digital wireless communication system is applied as a communication system of the cordless telephone.
【００１７】上記各態様を有する本発明によれば、ある
子機が他の子機との間で内線通話を行うときに、親機に
対して相手となる子機の識別情報を通知し、子機間直接
通信用無線チャネルにより相手となる子機を呼び出す。
通知を受けた親機はその識別情報によって特定された子
機に対して子機間直接通話ができるようにするために起
動操作を行う。相手となる子機は親機による子機間直接
通話の起動を検出し、子機間直接通話用無線チャネルに
よる自己を特定する呼出し信号を検出して子機相互間の
通話を行う。According to the present invention having each of the above aspects, when a slave unit makes an extension call with another slave unit, the master unit is notified of the identification information of the partner slave unit, Invokes the other handset as a partner on the wireless channel for direct communication between handset units.
Upon receiving the notification, the base unit performs an activation operation to enable direct communication between the handset units to the handset unit specified by the identification information. The partner handset detects the activation of the direct call between the handset units by the base unit, and detects a call signal for identifying itself by the radio channel for direct call between the handset units to make a call between the handset units.
【００１８】また、発呼子機が通話の相手となる被呼子
機を特定して呼び出すのに使用する子機間直接通信用無
線チャネル情報を親機に通知し、親機は通知されたその
情報を被呼子機に通知し、被呼子機が通知された子機間
直接通信無線チャネルからの自己を特定する呼出し信号
を検出して子機間相互の通話を行うこともできる。これ
により、子機が親機の制御用無線チャネルと子機間直接
通信用無線チャネルとの両方で待受け受信しなくても、
制御用無線チャネルでの待受け状態から自動的に子機間
直接通話モードへの移行を行うことができ、さらに、子
機間直接通信用キャリアでのスキャン動作が不要とな
り、この結果、電池の節約および接続に要する時間を短
縮することができる。Further, the calling handset notifies the parent device of the wireless channel information for direct communication between the handset devices which is used for identifying and calling the called handset device to be called, and the parent device notifies the notified information. To the called slave unit, and the calling signal identifying the self from the direct communication wireless channel between the slave units notified of by the called slave unit can be detected to make a mutual call between the slave units. As a result, even if the slave unit does not perform standby reception on both the control wireless channel of the master unit and the wireless channel for direct communication between the slave units,
It is possible to automatically switch from the stand-by state on the control wireless channel to the direct call mode between handset units, and the scan operation on the carrier for direct communication between handset units is not required, resulting in battery saving. And the time required for connection can be shortened.
【００１９】[0019]
【発明の実施の形態】次に、本発明の実施の形態を添付
の図面に基づいて説明する。図１は本発明の実施の形態
の全体構成を示すブロック図、図２は本発明の実施の形
態におけるチャネルの概念を示す説明図、図３は本発明
の実施の形態における親機の構成を示すブロック図、図
４は本発明の実施の形態における親機の構成を示すブロ
ック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the concept of channels in the embodiment of the present invention, and FIG. 3 is a configuration of a master unit in the embodiment of the present invention. FIG. 4 is a block diagram shown in FIG. 4, and FIG. 4 is a block diagram showing the configuration of the master unit in the embodiment of the present invention.
【００２０】本発明の実施の形態は、図１に示すよう
に、有線電話回線に固定的に接続された親機Ｚと、この
親機Ｚと無線接続される複数の子機（例えばＡ、Ｂ、Ｃ
の３個）とを備え、図２に示すように親機Ｚは、制御チ
ャネルを用いて複数の通話チャネルを指定して、親機
Ａ、Ｂ、Ｃ相互間での双方向の無線回線を構成する。親
機Ｚと子機Ａ、Ｂ、Ｃとは通話が行われていないときは
制御チャネルにより接続されていて、通話時には通話チ
ャネルのいずれかに切換えられる。In the embodiment of the present invention, as shown in FIG. 1, a master unit Z fixedly connected to a wired telephone line and a plurality of slave units (for example, A, A, etc.) wirelessly connected to the master unit Z. B, C
2), the master device Z designates a plurality of communication channels using the control channel to establish a bidirectional wireless line between the master devices A, B, and C as shown in FIG. Configure. The master unit Z and the slave units A, B, and C are connected by a control channel when no call is being made, and can be switched to one of the call channels during a call.
【００２１】図３に示されるよに、親機Ｚは、ラインリ
レー回路１、着信検出回路２、ハイプリッド回路３、増
幅器４、５、ミュート回路６、７、送信部８、受信部
９、周波数シンセサイザ１０、１１、帯域ろ波器１２、
１３、データ送出部１４、データ検出部１５、空きチャ
ネル検出回路１６、干渉検出回路１７、アンテナ１８、
ダイヤル回路１９、および制御回路２０が備えられてい
る。As shown in FIG. 3, the master unit Z includes a line relay circuit 1, an incoming call detection circuit 2, a hybrid circuit 3, amplifiers 4, 5, mute circuits 6, 7, a transmitter 8, a receiver 9, and a frequency. Synthesizer 10, 11, bandpass filter 12,
13, data transmission unit 14, data detection unit 15, empty channel detection circuit 16, interference detection circuit 17, antenna 18,
A dial circuit 19 and a control circuit 20 are provided.
【００２２】また、子機Ａ、Ｂ、Ｃそれぞれには、図４
に示されるように、アンテナ２１、帯域ろ波器２２、２
３、受信部２４、データ検出部２５、空きチャネル検出
回路２６、干渉検出回路２７、ミュート回路２８、２
９、増幅器３０、３１、受信器３２、リンガ３３、ダイ
ヤルキー３４、送話器３５、内／外線切換スイッチ３
６、フックスイッチ３７、データ送出部３８、送信部３
９、周波数シンセサイザ４０、４１、切換回路４２、４
３、および制御回路４４が備えられている。Further, each of the slave units A, B and C has the configuration shown in FIG.
, The antenna 21, the bandpass filters 22 and 2,
3, reception unit 24, data detection unit 25, empty channel detection circuit 26, interference detection circuit 27, mute circuit 28, 2
9, amplifiers 30, 31, receiver 32, ringer 33, dial key 34, transmitter 35, internal / external line changeover switch 3
6, hook switch 37, data transmission unit 38, transmission unit 3
9, frequency synthesizers 40, 41, switching circuits 42, 4
3 and a control circuit 44.
【００２３】本発明の特徴として、子機Ａ、Ｂ、Ｃの制
御回路４４には、発呼子機であるときに、他の一つの被
呼子機間における通話を要求する信号を親機Ｚが待機す
る無線チャネルで親機Ｚに対して送信する手段と、被呼
子機との間で直接に通話することができる通話チャネル
で被呼子機を呼び出す信号を被呼子機に対して送信する
手段とが備えられ、親機Ｚの制御回路２０には、発呼子
機からの通話を要求する信号を受信して被呼子機が待機
する無線チャネルで子機間の直接通話を要求する信号を
被呼子機に対して送信する手段が備えられ、さらに、被
呼子機の制御回路４４には、親機Ｚからの直接通話を要
求する信号を受信して起動され、通話チャネルで発呼子
機からの被呼子機を呼び出す信号を受信する手段が備え
られ、被呼子機間における通話を要求する信号には被呼
子機の識別情報が含まれる。 第１実施例：本第１実施例は、前記基本構成の他に、子
機Ａ、Ｂ、Ｃの制御回路４４に備えられた通話チャネル
で被呼子機を呼び出す信号を受信する手段に、複数の通
話チャネルにわたりその信号を探索する手段が含まれ
る。As a feature of the present invention, the control circuit 44 of the slaves A, B and C, when the master Z is a calling slave, sends a signal requesting a call between another one of the called slaves. A means for transmitting to the base unit Z on the standby wireless channel, and a means for transmitting to the called unit a signal for calling the called unit on a communication channel that allows direct communication with the called unit. The control circuit 20 of the base unit Z receives a signal requesting a call from the calling handset and a signal requesting a direct call between the handset units on a wireless channel on which the called handset waits. The control circuit 44 of the called child device is activated by receiving a signal requesting a direct call from the parent device Z and is activated by the call channel from the calling child device. A means for receiving a signal for calling the calling slave is provided, and between the called slaves. The signal requesting the definitive call includes the identification information of the whistle machine. First Embodiment: In addition to the basic configuration described above, the first embodiment has a plurality of means for receiving a signal for calling a called child device on a call channel provided in the control circuit 44 of the child devices A, B, and C. Means for searching the signal over the call channel of the.
【００２４】次に、本発明第１実施例の基本動作につい
て図１を参照しながら説明する。Next, the basic operation of the first embodiment of the present invention will be described with reference to FIG.
【００２５】親機Ｚは固定電話網と有線電話回線とに接
続され、子機Ａ、Ｂ、Ｃは、この親機Ｚとデジタルコー
ドレス電話用無線回路を通して通信できるよに構成され
ている。また、各子機Ａ、Ｂ、Ｃには、呼出などの区別
のために内線番号に相当する子機番号が予め与えられて
おり、例えば子機Ａには子機番号として１、子機Ｂには
子機番号として２、子機Ｃには子機番号として３が割り
当てられている。The master unit Z is connected to a fixed telephone network and a wired telephone line, and the slave units A, B and C are configured to be able to communicate with the master unit Z through a digital cordless telephone radio circuit. In addition, a slave unit number corresponding to an extension number is given to each of the slave units A, B, and C in advance in order to distinguish a call. For example, the slave unit A has a slave unit number of 1 and a slave unit B. 2 is assigned to the slave unit, and 3 is assigned to the slave unit C as the slave unit number.
【００２６】通常は、子機Ａ、子機Ｂ、子機Ｃは、とも
に親機Ｚから送信される自分宛の着信信号を制御用チャ
ネルにて待受けている。Normally, each of the slave unit A, the slave unit B, and the slave unit C waits for an incoming signal addressed to itself transmitted from the master unit Z on the control channel.
【００２７】ここで、子機Ａが子機Ｂと子機間内線通話
をしようとした場合の動作について説明する。Here, the operation when the handset A tries to make an extension call between the handset B and the handset B will be described.
【００２８】発呼子機としての子機Ａは、内線発信ボタ
ンと被呼子機Ｂの子機番号が されると、親機Ｚに対し
て子機Ｂの子機番号を含む内線通話要求信号ａ1 を送信
する。この内線通話要求信号ａ1 が受け付けられると、
続いて空きの子機間直接通話用チャネルを用いて子機Ｂ
の子機番号を含む子機間直接通信呼出信号ｂの送信を子
機Ｂに対して開始する。それ以後の動作は、第二世代コ
ードレス電話システムの標準規格ＲＣＲ ＳＴＤ−２８
で示されている子機間直接通話と同様に行われる。When the extension call button and the cordless handset number of the called cordless handset B are given, the cordless handset A as a calling handset sends an extension call request signal a including the handset number of handset B to the base unit Z. Send 1 When this extension call request signal a 1 is accepted,
Then, using the free direct call channel between the handset units, handset unit B
The transmission of the inter-slave unit direct communication calling signal b including the slave unit number is started to the slave unit B. Subsequent operation is based on the standard RCR STD-28 of the second generation cordless telephone system.
The call is performed in the same manner as the direct call between handset units indicated by.
【００２９】親機Ｚは子機Ａからの内線要求通話信号ａ
1 を受け付けると、それに含まれている子機番号を含む
内線通話起動信号ｃ1 を子機Ｂに対し制御用チャネルに
て送信する。The master Z is the extension request call signal a from the slave A.
When 1 is accepted, the extension call activation signal c 1 including the cordless handset number included therein is transmitted to the cordless handset B through the control channel.
【００３０】子機Ｂは制御用チャネルにて自分の子機番
号を含む内線通話起動信号ｃ1 を受信すると、その後は
標準規格ＲＣＲ ＳＴＤ−２８で示されている子機間直
接通話と同様の動作を行う。すなわち、子機Ａから送信
された子機間直接通信呼出信号ｂが受信されたか否かを
調べるために、標準規格ＲＣＲ ＳＴＤ−２８において
示されている子機間直接通話用キャリアとして割れ当て
られている１０波のキャリアに無線機を順次切り替え
る。自分宛の子機間直接通信呼出信号ｂを受信すると、
着信音を鳴動して応答ボタン操作の待ち受け状態とな
り、子機間直接通信応答信号ｄを子機Ａに対して送信し
て通信状態に入る。When the handset B receives the extension call activation signal c 1 including its handset number on the control channel, the handset B thereafter performs the same call as the direct call between handset as shown in the standard RCR STD-28. Take action. That is, in order to check whether or not the inter-slave unit direct communication call signal b transmitted from the slave unit A is received, it is assigned as a carrier for inter-slave unit direct call shown in the standard RCR STD-28. The radio is sequentially switched to the carrier of 10 waves. When the direct communication call signal b addressed to itself is received,
A ringing tone is sounded to enter the standby state for the operation of the response button, and the direct communication response signal d between the handset units is transmitted to the handset unit A to enter the communication state.
【００３１】このとき、内線通話起動信号ｃ1 は子機Ｃ
において受信されても、含まれている子機番号２が自分
の子機番号である３と異なるので動作しない。At this time, the extension call activation signal c 1 is the handset C
Even if it is received at, the slave unit number 2 included therein is different from the own slave unit number 3, so that it does not operate.
【００３２】なお、本発明の第１実施例における信号の
送／受信状態を説明するシーケンスが図５に示されてい
る。 第２実施例：本第２実施例は、前述の基本構成に加え
て、被呼子機Ｂとの間の通話を要求するために親機Ｚに
対して送信する発呼子機Ａからの内線通話要求信号に
は、被呼子機Ｂを呼び出す信号を親機Ｚから送信するた
めの通話チャネルの情報、すなわち、子機間直接通信用
無線チャネル情報が含まれている。A sequence for explaining the signal transmission / reception state in the first embodiment of the present invention is shown in FIG. Second Embodiment: In addition to the basic configuration described above, the second embodiment is an extension call from the calling terminal A that is transmitted to the master Z to request a call with the called terminal B. The request signal includes information on a call channel for transmitting a signal for calling the called slave B from the master Z, that is, wireless channel information for direct communication between the slaves.
【００３３】すなわち、第１実施例との違いは、子機Ａ
が図１に示す内線通話要求信号ａ1を親機Ｚに対して送
信する前に、子機間直接通話用キャリアの中からキャリ
アセンスにより空きのキャリアを選択し、そのキャリア
番号も内線通話要求信号ａ1に含ませて親機Ｚに対して
送信し、そのキャリアにて子機間直接通話呼出信号ｂの
送信を子機Ｂに対して開始し、親機Ｚが子機Ａからのキ
ャリア番号も内線通話起動信号ｃ1 に含めて子機Ｂに対
して送信し、さらに、子機Ｂが子機間直接通話用キャリ
アの順次切り替えは行わず、受信した親機Ｚからの内線
通話起動信号ｃ1 に含まれるキャリア番号で示される子
機間直接通話用キャリアにて子機Ａからの子機間直接通
話呼出信号ｂの受信待ちに入るところに特色がある。図
５に示すシーケンスは上述の動作を標準規格ＲＣＲ Ｓ
ＴＤ−２８の表現に準拠して示したもので、親機と子機
の間で送受する内線通話要求信号ａ1 、内線通話受付信
号ａ2 、内線通話起動信号ｃ1 および内線通話起動受付
信号ｃ2 は、標準規格ＲＣＲ ＳＴＤ−２８リンクチャ
ネル確立フェーズの信号としてオプション領域を使用し
て定義されたものである。That is, the difference from the first embodiment is that the slave unit A
Before transmitting the extension call request signal a 1 shown in FIG. 1 to the master unit Z, an empty carrier is selected by carrier sense from the carriers for direct communication between the slave units, and the carrier number is also required for the extension call request. The signal a 1 is transmitted to the base unit Z and transmitted to the base unit Z to start transmitting the inter-handset direct call calling signal b to the base unit B, and the base unit Z transmits the carrier from the base unit A. The number is also included in the extension call activation signal c 1 and transmitted to the slave unit B, and further, the slave unit B does not sequentially switch the carrier for direct communication between the slave units, and the extension call activation from the master unit Z that has received is received. A feature is that the carrier for direct call between slaves indicated by the carrier number included in the signal c 1 waits for reception of the direct call call signal b between slaves from the slave A. The sequence shown in FIG. 5 is based on the standard operation RCR S
Shown in accordance with the expression of TD-28, an extension call request signal a 1 , an extension call acceptance signal a 2 , an extension call activation signal c 1 and an extension call activation acceptance signal transmitted and received between the master unit and the slave unit. c 2 is defined using the option field as a signal for the standard RCR STD-28 link channel establishment phase.
【００３４】子機間で送受されるメッセージおよびシー
ケンスはＲＣＲ ＳＴＤ−２８の子機間直接通話の規定
と同じである。The messages and sequences transmitted and received between the handset units are the same as the rules for direct call between handset units of RCR STD-28.
【００３５】[0035]
【発明の効果】以上説明したように本発明によれば、子
機が親機の制御用無線チャネルと子機間直接通信用無線
チャネルとの両方で待受け受信しなくても、制御用無線
チャネルでの待受け状態から自動的に子機間直接通話モ
ードへの移行を行うことができる。また、子機間直接通
信用キャリアでのスキャン動作を行う必要がなくなり、
これにより電池の節約および接続に要する時間を短縮す
ることができる効果がある。As described above, according to the present invention, even if the slave unit does not perform standby reception on both the control wireless channel of the master unit and the radio channel for direct communication between the slave units, the control wireless channel is available. It is possible to automatically switch to the direct call mode between handset units from the standby state in. Also, there is no need to perform a scanning operation on the carrier for direct communication between handset units,
This has the effect of saving the battery and shortening the time required for connection.
【図１】本発明実施例の全体構成を示すブロック図。FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention.
【図２】本発明実施例におけるチャネルの概念を示す
図。FIG. 2 is a diagram showing the concept of channels in the embodiment of the present invention.
【図３】本発明実施例における親機の構成を示すブロッ
ク図。FIG. 3 is a block diagram showing a configuration of a master unit according to the embodiment of the present invention.
【図４】本発明実施例における子機の構成を示すブロッ
ク図。FIG. 4 is a block diagram showing a configuration of a child device according to the embodiment of the present invention.
【図５】本発明実施例における信号の送受信状態を説明
するシーケンス図。FIG. 5 is a sequence diagram for explaining a signal transmission / reception state in the embodiment of the present invention.
Ａ、Ｂ、Ｃ 子機 Ｚ 親機 ａ1 内線通話要求信号 ａ2 内線通話受付信号 ｂ 子機間直接通信呼出信号 ｃ1 内線通話起動信号 ｃ2 内線通話起動受付信号 ｄ 子機間直接通信応答信号 １ ラインリレー回路 ２ 着信検出回路 ３ ハイブリッド回路 ４、５、３０、３１ 増幅器 ６、７、２８、２９ ミュート回路 ８、３９ 送信部 ９、２４ 受信部 １０、１１、４０、４１ 周波数シンセサイザ １２、１３、２２、２３ 帯域ろ波器 １０ 外部ベース領域 １４、３８ データ送出部 １５、２５ データ検出部 １６、２６ 空きチャネル検出回路 １７、２７ 干渉検出回路 １８、２１ アンテナ １９ ダイヤル回路 ２０、４４ 制御回路 ３２ 受話器 ３３ リンガ ３４ ダイヤルキー ３５ 送話器 ３６ 内／外切換スイッチ ３７ フックスイッチ ４２、４３ 切換回路A, B, C Slave unit Z Master unit a 1 Extension call request signal a 2 Extension call acceptance signal b Inter-unit direct communication call signal c 1 Extension call activation signal c 2 Extension call activation acceptance signal d Sub-unit direct communication response Signal 1 Line relay circuit 2 Incoming detection circuit 3 Hybrid circuit 4, 5, 30, 31 Amplifier 6, 7, 28, 29 Mute circuit 8, 39 Transmitter 9, 24 Receiver 10, 11, 40, 41 Frequency synthesizer 12, 13, 22 and 23 Bandpass filter 10 External base area 14, 38 Data transmission section 15, 25 Data detection section 16, 26 Free channel detection circuit 17, 27 Interference detection circuit 18, 21 Antenna 19 Dial circuit 20, 44 Control circuit 32 handset 33 ringer 34 dial key 35 transmitter 36 inner / outer changeover switch 37 hook switch 42, 43 changeover circuit
Claims (7)
と、該親機と無線接続される複数の子機とを備えたコー
ドレス電話方式において、 前記子機の中の一つである発呼子機は、他の一つの被呼
子機との間における通話を要求する信号を親機が待機す
る無線チャネルで前記親機に対して送信する手段と、前
記被呼子機との間で直接通話することができる通話チャ
ネルで前記被呼子機を呼び出す信号を該被呼子機に対し
て送信する手段とを備え、 前記親機は、前記発呼子機からの通話を要求する信号を
受信して被呼子機が待機する無線チャネルで子機間の直
接通話を要求する信号を前記被呼子機に対して送信する
手段を備え、 前記被呼子機は、前記親機からの直接通話を要求する信
号を受信して起動され、前記通話チャネルで前記発呼子
機からの被呼子機を呼び出す信号を受信する手段を備え
たことを特徴とするコードレス電話方式。1. A cordless telephone system comprising a master unit fixedly connected to a wired telephone line and a plurality of slave units wirelessly connected to the master unit, which is one of the slave units. The calling handset directly transmits between the called handset and a means for transmitting a signal requesting a call with another one of the called handset to the parent handset through a radio channel on which the parent handset waits. And a means for transmitting to the called child device a signal for calling the called child device on a call channel capable of making a call, the parent device receiving a signal requesting a call from the calling child device. The called child device comprises means for transmitting a signal requesting a direct call between the child devices on a wireless channel on which the called child device stands by, and the called child device is a signal requesting a direct call from the parent device. From the calling handset on the call channel A cordless telephone system provided with means for receiving a signal for calling the called machine of the above.
する信号が該被呼子機の識別情報を含むことを特徴とす
る請求項１記載のコードレス電話方式。2. The cordless telephone system according to claim 1, wherein the signal for requesting a call with the called handset includes identification information of the called handset.
出す信号を受信する前記手段が、複数の通話チャネルに
わたりその信号を探索する手段を含むことを特徴とする
請求項１のコードレス電話方式。3. The cordless telephone system according to claim 1, wherein the means for receiving a signal for calling the called terminal on the call channel includes means for searching for the signal over a plurality of call channels.
出す信号を受信する前記手段が、複数の通話チャネルに
わたりその信号を探索する手段を含むことを特徴とする
請求項２記載のコードレス電話方式。4. The cordless telephone system according to claim 2, wherein the means for receiving a signal for calling the called terminal on the call channel includes means for searching for the signal over a plurality of call channels.
する信号は前 被呼子機を呼び出す信号を送信する通話
チャネルの情報を含むことを特徴とする請求項１のコー
ドレス電話方式。5. The cordless telephone system according to claim 1, wherein the signal requesting a call with the called handset includes information on a call channel for transmitting a signal for calling the former called handset.
する信号は前記被呼子機を呼び出す信号を送信する通話
チャネルの情報を含むことを特徴とする請求項２記載の
コードレス電話方式。6. The cordless telephone system according to claim 2, wherein the signal requesting a call with the called handset includes information on a call channel for transmitting a signal for calling the called handset.
て、ディジタル無線通信方式が適用されることを特徴と
する請求項１のコードレス電話方式。7. The cordless telephone system according to claim 1, wherein a digital wireless communication system is applied as a communication system in the cordless telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7214277A JP2773697B2 (en) | 1994-08-26 | 1995-08-23 | Cordless telephone equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-202426 | 1994-08-26 | ||
| JP20242694 | 1994-08-26 | ||
| JP7214277A JP2773697B2 (en) | 1994-08-26 | 1995-08-23 | Cordless telephone equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08116573A true JPH08116573A (en) | 1996-05-07 |
| JP2773697B2 JP2773697B2 (en) | 1998-07-09 |
Family
ID=26513366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7214277A Expired - Fee Related JP2773697B2 (en) | 1994-08-26 | 1995-08-23 | Cordless telephone equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2773697B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973658A (en) * | 1996-12-10 | 1999-10-26 | Lg Electronics, Inc. | Liquid crystal display panel having a static electricity prevention circuit and a method of operating the same |
| JP2003174382A (en) * | 2001-12-07 | 2003-06-20 | Omron Corp | Communication device, communication system and communication relay device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06338852A (en) * | 1993-05-31 | 1994-12-06 | Sony Corp | Digital cordless telephone system |
-
1995
- 1995-08-23 JP JP7214277A patent/JP2773697B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06338852A (en) * | 1993-05-31 | 1994-12-06 | Sony Corp | Digital cordless telephone system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5973658A (en) * | 1996-12-10 | 1999-10-26 | Lg Electronics, Inc. | Liquid crystal display panel having a static electricity prevention circuit and a method of operating the same |
| JP2003174382A (en) * | 2001-12-07 | 2003-06-20 | Omron Corp | Communication device, communication system and communication relay device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2773697B2 (en) | 1998-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5699409A (en) | Cordless telephone system for providing set-up communications between subsidiary units through a master unit | |
| JP3313370B2 (en) | Mobile communication system and fixed and mobile units used in this system | |
| JPH08163636A (en) | Digital cordless telephone system | |
| JP3166796B2 (en) | Cordless phone | |
| JPH10173744A (en) | Telephone system | |
| JP2642380B2 (en) | Wireless communication device | |
| JP2773697B2 (en) | Cordless telephone equipment | |
| JP2710721B2 (en) | Cordless telephone that allows calls between slave units | |
| JPH04342345A (en) | Simultaneous voice calling system for cordless telephone | |
| JPH01273443A (en) | Cordless telephone system | |
| JP3308067B2 (en) | Cordless telephone | |
| KR970011432B1 (en) | Group paging system | |
| JP3738056B2 (en) | Cordless phone | |
| JP2654392B2 (en) | Wireless communication device | |
| JP3192870B2 (en) | Cordless telephone | |
| JPH1141659A (en) | Communication equipment | |
| JP3197028B2 (en) | Simultaneous paging method for wireless communication device | |
| JP2696449B2 (en) | Cordless telephone equipment | |
| JPH0787166A (en) | Digital cordless telephone | |
| JP3112752B2 (en) | How to connect a cordless phone extension | |
| JP2648128B2 (en) | Exchanger connection device for MCA | |
| JPH05235851A (en) | Mca control system | |
| JPH0738489A (en) | Digital cordless telephone set | |
| JPH01136437A (en) | Cordless telephone set | |
| JPH0456447A (en) | Connection control method for cordless telephone set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980324 |
|
| LAPS | Cancellation because of no payment of annual fees |