JPH0482428A - Incoming method for radio telephone system - Google Patents
Incoming method for radio telephone systemInfo
- Publication number
- JPH0482428A JPH0482428A JP2197200A JP19720090A JPH0482428A JP H0482428 A JPH0482428 A JP H0482428A JP 2197200 A JP2197200 A JP 2197200A JP 19720090 A JP19720090 A JP 19720090A JP H0482428 A JPH0482428 A JP H0482428A
- Authority
- JP
- Japan
- Prior art keywords
- incoming
- signal
- call
- wireless telephone
- wireless
- 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
- 238000000034 method Methods 0.000 title claims description 14
- 238000012544 monitoring process Methods 0.000 claims 1
- 101000639763 Homo sapiens Regulator of telomere elongation helicase 1 Proteins 0.000 abstract 1
- 102100034469 Regulator of telomere elongation helicase 1 Human genes 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
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- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は無線電話装置の着信方法に関し、特にコードレ
スボタン電話システムにおける無線電話装置の着信方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for receiving a call using a wireless telephone device, and more particularly to a method for receiving a call using a wireless telephone device in a cordless button telephone system.
コードレスボタン電話システムでは、１つの無線ゾーン
、あるいは、複数の無線ゾーンのそれぞれに複数の接続
装置が配置される。これら接続装置は主装置に接続され
る。これら接続装置は主装置の制御のもとに無線電話装
置と無線接続する。In a cordless button telephone system, a plurality of connection devices are arranged in one wireless zone or in each of a plurality of wireless zones. These connecting devices are connected to the main device. These connecting devices wirelessly connect with the wireless telephone device under the control of the main device.
この無線接続のための無線チャネルとして、１つの制御
チャネルと複数の通話チャネルとがシステム内で共用さ
れる。各接続装置及び各無線電話装置はそれぞれの無線
部分を、必要に応じて、これら制御チャネル、通話チャ
ネルのいずれかに切替える。As wireless channels for this wireless connection, one control channel and a plurality of communication channels are shared within the system. Each connection device and each radio telephone device switches their respective radio portions to either the control channel or the communication channel as necessary.
無線電話装置は、電源用電池の放電をできるだけ少くす
るため、待受は中はバッテリーセービングモードで動作
している。このモードでは、無線部分は制御チャネルに
なっており、受信部を間歇的にオンにする。一方、主装
置に接続されている外線又は内線の１つに着信があると
、主装置は各無線ゾーンごとに１つの接続装置から制御
チャネルで着呼信号を送出させる。各無線電話装置は、
着呼信号を受信すると、連続動作モードに移行し、制御
チャネルで着呼＃信号を送出する。着呼信号を送出した
接続装置は、着呼応答信号を受信すると、通話チャネル
の１つを指定するＣＨ指定信号を送出し、その後、自己
の無線部分を指定した通話チャネルに切替える。ＣＨ指
定信号を受信した各無線電話装置も、それぞれ、無線部
分を指定された通話チャネルに切替える。引続き接続装
置と各無線電話装置との間で制御信号がやりとりされ、
各無線電話装置でベルが鳴る。無線電話装置の１つがベ
ル鳴道中にオフフックされると、その無ＩＩＡ電話装置
はオフフック信号を送出する。In order to minimize the discharge of the power supply battery, the wireless telephone device operates in battery saving mode during standby mode. In this mode, the radio part is a control channel and the receiver is turned on intermittently. On the other hand, when there is an incoming call on one of the external lines or extensions connected to the main device, the main device causes one connected device for each wireless zone to send out an incoming call signal on the control channel. Each radiotelephone device is
When receiving an incoming call signal, it shifts to continuous operation mode and sends out an incoming call # signal on the control channel. When the connection device that sent the incoming call signal receives the incoming call response signal, it sends out a CH designation signal that designates one of the communication channels, and then switches its own wireless section to the specified communication channel. Each radio telephone device that receives the CH designation signal also switches its radio portion to the designated communication channel. Control signals are then exchanged between the connected device and each radiotelephone device,
A bell rings on each radiotelephone device. When one of the wireless telephone devices goes off-hook while ringing, that IIAless telephone device sends an off-hook signal.
接続装置は、オフフック信号を送出した無線電話装置を
指定して音声回路オン信号（ＡＦオン信号）を送出し、
指定した無線電話装置との通話に移る。一方、残りの各
無線電話装置は、ベル鳴動中に他無線電話装置を指定し
たＡＦオン信号を傍受すると、送信部、受信部をオフに
してバッテリーセービングモードに戻る。The connecting device sends out an audio circuit on signal (AF on signal) specifying the wireless telephone device that sent the off-hook signal,
Proceed to a conversation with the specified wireless telephone device. On the other hand, when each of the remaining radio telephone devices intercepts an AF-on signal specifying another radio telephone device while the bell is ringing, it turns off the transmitting section and the receiving section and returns to the battery saving mode.
上述した従来の無線電話装置の着信方法は、主装置への
１つの着信に対して接続されなかった各無線電話装置が
それぞれ送信部、受信部をオフにしてバッテリーセービ
ングモードに戻るようになっている。そのため、この時
に主装置へ次の着信が入っており、先の着信によって通
話に移っている接続装置とは別の接続装置から着呼信号
が送出されると、後の着信に対する接続が遅れるという
欠点がある。The above-mentioned conventional method of receiving a call on a wireless telephone device is such that each wireless telephone device that is not connected turns off its transmitting section and receiving section and returns to battery saving mode in response to one incoming call to the main device. There is. Therefore, if the next incoming call is received by the main device at this time, and the incoming call signal is sent from a different connected device than the connected device that was used to make a call due to the previous incoming call, the connection for the later incoming call will be delayed. There are drawbacks.
本発明の目的は、連続した着信、あるいは、同時着信の
場合に後の着信の方の接続が遅れることのない無線電話
装置の着信方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for receiving a call using a radio telephone device, which does not cause a delay in connection of the subsequent call in the case of successive calls or simultaneous calls.
本発明の無線電話装置の着信方法は、複数の接続装置に
無線接続でき、バッテリーセービングモードで間歇的に
制御チャネルを監視して着信を待受ける無線電話装置の
着信方法において、制御チャネルを監視中に着呼信号を
受信すると連続動作モードに移行し、通話チャネル指定
信号を受信すると指定された通話チャネルに切替え、ベ
ル信号を受信してベルを鳴動させ、オフフック後に自己
を指定した音声回路オン信号を受信すると通話を開始し
、ベル鳴動中に自己以外を指定した前記音声回路オン信
号を受信すると前記制御チャネルに切替え、あらかじめ
定めた時間連続して前記制御チャネルを監視する。The wireless telephone device of the present invention is capable of wirelessly connecting to a plurality of connected devices, and intermittently monitors the control channel in battery saving mode to wait for incoming calls. When it receives an incoming call signal, it shifts to continuous operation mode, when it receives a call channel designation signal, it switches to the designated call channel, when it receives a bell signal, it rings the bell, and after going off-hook, it switches on the designated voice circuit. When it receives this, it starts a call, and when it receives the audio circuit ON signal specifying someone other than itself while the bell is ringing, it switches to the control channel and continuously monitors the control channel for a predetermined period of time.
前記接続装置及び無線電話装置はコードレスボタン電話
システムの接続装置及び無線電話装置であってもよい。The connecting device and the radiotelephone device may be a connecting device and a radiotelephone device of a cordless button telephone system.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を説明するための図、第２図
はこの実施例が適用されるコードレスボタン電話システ
ムを示すブロック図である。FIG. 1 is a diagram for explaining one embodiment of the present invention, and FIG. 2 is a block diagram showing a cordless button telephone system to which this embodiment is applied.
まず、第２図に示すコードレスボタン電話システムの構
成について説明する。First, the configuration of the cordless button telephone system shown in FIG. 2 will be explained.
このコードレスボタン電話システムはサービス地域を２
つの無線ゾーンＺｌ、Ｚ２に分けている。This cordless button telephone system has two service areas.
It is divided into two wireless zones Zl and Z2.
主装置（ＭＥ）１００は、有線電話回線１０１゜１０２
、・・・ＩＯＪを収容し、有線回線１１１゜１１２、・
・・ｌ１ｍ、１２１，１２２．・・・１２ｎとの交換動
作を行う。有線回線１１１，１１２．・・・１１ｍに接
続された接続装置（ＣＥ）２１１゜２１２、・・・２１
ｍは無線ゾーンｚ１に設置され、無線ゾーンＺ１内の無
線電話装ｆｉ（Ｒ置）３１１．３１２．・・・３１にと
無線回線を介して接続する。同様に、有線回線１２１，
１２２．・・・１２ｎに接続された接続装置２２１，２
２２．・・・２２ｎは無線ゾーンＺ２に設置され、無線
ゾーンＺ２内の無線電話装置３２１，３２２．・・・３
２ρと無線回線を介して接続する。無線回線の無線チャ
ネルとして、１つの制御チャネル（以下ＣＣＨという）
及び複数の通話チャネル（以下５−ＣＨという）が使用
され、各接続装置及び各無線電話装置はこれら無線チャ
ネルのいずれによっても送信・受信することができる。The main equipment (ME) 100 has wired telephone lines 101 and 102.
,...accommodates IOJ, wired line 111゜112,...
...l1m, 121,122. ...Exchange operation with 12n is performed. Wired lines 111, 112. ... Connecting device (CE) connected to 11m 211゜212, ...21
m is installed in the wireless zone z1, and the wireless telephone devices fi (R installation) 311, 312. ...31 via a wireless line. Similarly, the wired line 121,
122. ... Connection device 221, 2 connected to 12n
22. ...22n is installed in the wireless zone Z2, and the wireless telephone devices 321, 322 . . . 22n are installed in the wireless zone Z2. ...3
2ρ via a wireless line. One control channel (hereinafter referred to as CCH) as the wireless channel of the wireless line
and a plurality of communication channels (hereinafter referred to as 5-CH) are used, and each connecting device and each wireless telephone device can transmit and receive through any of these wireless channels.
次に、第１図、第２図を参照して本実施例による着信接
続処理について説明する。Next, incoming call connection processing according to this embodiment will be explained with reference to FIGS. 1 and 2.
主装置１００は、各無線ゾーンごとに、通話に入ってい
ない接続装置の１つを発着呼可能な待受は状態にし、そ
の他の通話に入っていない接続装置を待機状態（スタン
バイ）とする。これは、同一無線ゾーン内で複数の接続
装置が同時にＣＣＨを使用し電波がぶつかるのを避ける
ためである。待受は状態にある接続装置の１つを第１図
ではＣＥＩとして図示した。For each wireless zone, the main device 100 puts one of the connected devices not engaged in a call into a standby state in which calls can be made and received, and puts the other connected devices not engaged in a call into a standby state. This is to avoid collision of radio waves caused by multiple connected devices using the CCH at the same time within the same wireless zone. One of the connected devices in the standby state is illustrated as CEI in FIG.
土製ｆ１００は、有線電話回線１０１〜１０Ｊのいずれ
かからの着信を検出すると、待受は状態の接続装置に着
信を知らせる。この通知を受けなＣＥｌは、無線電話装
置３１１〜３１に、３２１〜３２Ａのすべてを順次指定
して、かつ、繰返しＣ−ＣＨで着呼信号を送出する。こ
れは、このシステムではどの無線電話装置がどの無線ゾ
ーンにいるかを管理していないからである。図面が複雑
になるのを避けるため、第１図には通話中でない２台の
無線電話装置をＲ置２．Ｒ置３と図示したが、無線電話
装置が３台以上であっても、以下の説明は一般性を失わ
ない。なお、通話中の無線電話装置は着信処理には関係
しない。When the earthenware f100 detects an incoming call from any of the wired telephone lines 101 to 10J, the standby mode notifies the connected device of the incoming call. CEl, which has not received this notification, sequentially designates all of 321 to 32A to the radio telephone devices 311 to 31, and repeatedly sends an incoming call signal on C-CH. This is because this system does not manage which wireless telephone devices are in which wireless zones. To avoid complicating the drawing, FIG. 1 shows two wireless telephone devices that are not in use, placed R and 2. Although shown as three radio telephone devices, the following description does not lose its generality even if there are three or more radio telephone devices. Note that the wireless telephone device in use is not involved in incoming call processing.
Ｒ置２．３は、バッテリーセービングモードで受信部を
オンにしなとき自己を指定しな着呼信号を受信すると、
連続動作モードに移行し、自己を指定した着呼信号に対
応するタイムスロットで着呼応答を行う。このように、
Ｒ置２．３は異ったタイミングで着呼応答を行うのでＣ
−ＣＨで電波がぶつかることはない。When the R 2.3 receives an incoming call signal that does not specify itself while the receiver is turned on in battery saving mode,
Shifts to continuous operation mode and responds to an incoming call in the time slot corresponding to the incoming call signal that designates itself. in this way,
R 2.3 responds to incoming calls at different timings, so C
- There is no chance of radio waves colliding with each other on CH.
ＣＥＩは、最初に着呼応答を行ったＲＴＥ Ｌ ２を指
定して、５−ＣＨの指定を行うＣＨ指定信号をＣ−ＣＨ
で送出し、自己の無線部分を指定した５−ＣＨに切替え
る。Ｒ置２は、ＣＨ指定信号を受信し、指定されな５−
ＣＨに切替え、ＣＨ切替完了信号を送出する。後から応
答したＲ置３も、Ｒ置２を指定したＣＨ指定信号を傍受
して、指定された５−ＣＨに切替える。CEI specifies RTE L2 that first responded to the incoming call, and sends a CH designation signal for designating 5-CH to C-CH.
, and switches its own wireless section to the specified 5-CH. R station 2 receives the CH designation signal, and the undesignated channel 5-
CH, and sends a CH switching completion signal. R station 3, which responded later, also intercepts the CH designation signal specifying R station 2 and switches to the specified 5-CH.
ＣＥＩは、ＣＨ切替完了信号を受信すると、Ｒ置２．３
を交互に指定して、繰返しベル信号を送出する。その結
果、Ｒ置２．３では呼出しのベルが鳴動し、利用者に着
信を知らせる。When the CEI receives the CH switching completion signal, the CEI
is specified alternately to repeatedly send out a bell signal. As a result, a ringing bell rings at R station 2.3, notifying the user of the incoming call.
第１図に図示した例では、Ｒ置３が最初にオフフックさ
れ、オフフック信号を送出する。オフフック信号も自己
を指定したベル信号に対応したタイムスロットで送出さ
れるので、たとえＲ置２．３が同時にオフフックされて
も、５−ＣＨで電波がぶつかることはない。In the example illustrated in FIG. 1, R station 3 goes off-hook first and sends an off-hook signal. Since the off-hook signal is also sent in the time slot corresponding to the bell signal that designated itself, even if R station 2.3 goes off-hook at the same time, the radio waves will not collide on 5-CH.
Ｒ置３からのオフフック信号を受信したＣＥｌは、Ｒ置
３を指定してＡＦオン信号を送出する。Ｒ置３は、自己
を指定したＡＰオン信号を受信し、音声回路をオンにし
て通話を開始する。一方、Ｒ置２は、Ｒ置３を指定した
ＡＦオン信号を傍受すると、無線部分をＣＣＨに切替え
、一定時間連続して受信部をオンにし、次の着呼信号を
待受ける。CEl, which has received the off-hook signal from R station 3, specifies R station 3 and sends out an AF on signal. The R station 3 receives the AP on signal specifying itself, turns on the audio circuit, and starts a call. On the other hand, when R station 2 intercepts the AF-on signal specifying R station 3, it switches the wireless part to CCH, turns on the receiving section continuously for a certain period of time, and waits for the next incoming call signal.
ＣＥＩが配置されている無線ゾーンとは別の無線ゾーン
でも、１つの接続装置が上述したＣＥＩの処理と同様の
処理をしている。この接続装置は、ＣＥｌの無線ゾーン
でＲ置３がオフフックされたことを主装置１００を介し
て知り、Ｒ置３を指定したＡＦオン信号を送出する。そ
の結果、ＣＥｌの無線ゾーンとは別の無線ゾーンにいる
（通話中でない）すべての無線電話装置も、上述したＲ
置２と同様に、Ｃ−ＣＨに切替え、一定時間連続して受
信部をオンにする。Even in a wireless zone different from the wireless zone where the CEI is located, one connection device performs the same process as the CEI process described above. This connecting device learns through the main device 100 that R station 3 is off-hook in the CEL wireless zone, and sends out an AF-on signal specifying R station 3. As a result, all radiotelephone devices (not in use) in a radio zone other than the CEl radio zone are also
As in case 2, switch to C-CH and turn on the receiver continuously for a certain period of time.
以上説明したようにして１つの着信に対する接続処理が
完了する。As explained above, the connection process for one incoming call is completed.
ところで、１つの着信に対する接続処理が行なわれてい
る間に次の着信があると、主装置１００は、先の着信に
対する接続処理が完了した後、ＣＥｌのゾーンの通話に
入っていない１つの接続装置を待受は状態にし、この接
続装置ともう１つの無線ゾーンの待受は状態の接続装置
とに後の着信を知らせる。最初に２つの着信が同時にあ
った場合にも、主装置１００は１方の着信の処理をまず
行い、この処理が完了後に他方の着信の処理を行うので
事情は同じである。後の着信の通知を受けた接続装置は
、先に説明したのと同様に着呼信号を送出するが、この
とき、通話中でないすべての無線電話装置はＣ−ＣＨで
受信部をオンにして着呼信号を待受けているので、以降
の接続処理は速やかに行われる。By the way, if the next call arrives while the connection process for one call is being performed, the main device 100, after completing the connection process for the previous call, connects the one connection that is not part of the call in the CEl zone. The device is placed in the standby state, and this connected device and the connected device in the other wireless zone that is in the standby state are notified of the subsequent incoming call. The situation is the same even when there are two incoming calls at the same time, since the main device 100 first processes one incoming call and processes the other incoming call after this process is completed. The connecting device that receives the notification of the subsequent call sends an incoming call signal in the same way as described above, but at this time, all wireless telephone devices that are not currently on a call turn on their reception units on C-CH. Since the terminal is waiting for an incoming call signal, the subsequent connection processing is carried out quickly.
以上説明したように本発明は、１つの着信に対して接続
されなかった無線電話装置に一定時間連続して制御チャ
ネルを監視させることにより、連続した着信、あるいは
、同時着信の場合に後の着信の方の接続を速やかに行う
ことができる効果がある。As explained above, the present invention allows a wireless telephone device that is not connected to continuously monitor a control channel for a certain period of time in response to one incoming call, so that subsequent calls can be received in the case of consecutive incoming calls or simultaneous incoming calls. This has the effect of allowing connections to be made quickly.
第１図は本発明の一実施例を説明するための図、第２図
はこの実施例が適用されるコードレスボタン電話システ
ムを示すブロック図である。
１．２１１〜２１ｍ、２２１〜２２ｎ−接続装置、２，
３，３１１〜３１に、３２１〜３２ｇ・・・無線電話装
置、１００・・・主装置、１０１〜１゜Ｊ・・・有線電
話回線、１１１〜ｌ１ｍ、１２１〜１２ｎ・・・有線回
線、Ｚｌ、Ｚ２・・・無線ゾーン。FIG. 1 is a diagram for explaining one embodiment of the present invention, and FIG. 2 is a block diagram showing a cordless button telephone system to which this embodiment is applied. 1.211~21m, 221~22n-connection device, 2,
3,311-31, 321-32g...wireless telephone device, 100...main device, 101-1°J...wired telephone line, 111-l1m, 121-12n...wired line, Zl , Z2...Wireless zone.
Claims (1)
ングモードで間歇的に制御チャネルを監視して着信を待
受ける無線電話装置の着信方法において、制御チャネル
を監視中に着呼信号を受信すると連続動作モードに移行
し、通話チャネル指定信号を受信すると指定された通話
チャネルに切替え、ベル信号を受信してベルを鳴動させ
、オフフック後に自己を指定した音声回路オン信号を受
信すると通話を開始し、ベル鳴動中に自己以外を指定し
た前記音声回路オン信号を受信すると前記制御チャネル
に切替え、あらかじめ定めた時間連続して前記制御チャ
ネルを監視することを特徴とする無線電話装置の着信方
法。 ２、前記接続装置及び前記無線電話装置はコードレスボ
タン電話システムの接続装置及び無線電話装置であるこ
とを特徴とする請求項１記載の無線電話装置の着信方法
。[Scope of Claims] 1. In a method for receiving calls of a wireless telephone device that can be wirelessly connected to a plurality of connected devices and waits for incoming calls by intermittently monitoring a control channel in battery saving mode, When it receives a signal, it shifts to continuous operation mode, when it receives a call channel designation signal, it switches to the specified call channel, when it receives a bell signal, it rings the bell, and after off-hook, when it receives the audio circuit on signal that specified itself. A wireless telephone device characterized in that when a call is started and the voice circuit ON signal specifying a device other than the self is received while the bell is ringing, the wireless telephone device switches to the control channel and continuously monitors the control channel for a predetermined period of time. How to receive a call. 2. The method of receiving a call using a wireless telephone device according to claim 1, wherein the connecting device and the wireless telephone device are a connecting device and a wireless telephone device of a cordless button telephone system.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2197200A JP2919011B2 (en) | 1990-07-25 | 1990-07-25 | Receiving method of wireless telephone device |
| AU75106/91A AU636736B2 (en) | 1990-04-17 | 1991-04-16 | Cordless key telephone system capable of quickly answering incoming calls |
| EP91106044A EP0452877B1 (en) | 1990-04-17 | 1991-04-16 | Cordless key telephone system capable of quickly answering incoming calls |
| CA002040572A CA2040572C (en) | 1990-04-17 | 1991-04-16 | Cordless key telephone system capable of quickly answering incoming calls |
| DE69116920T DE69116920T2 (en) | 1990-04-17 | 1991-04-16 | Cordless telephone system with quick acceptance of incoming calls |
| KR1019910006079A KR940010209B1 (en) | 1990-04-17 | 1991-04-16 | Cardless key telephone system capable of quickly answering incoming calls |
| US07/686,468 US5239572A (en) | 1990-04-17 | 1991-04-17 | Cordless key telephone system capable of quickly answering incoming calls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2197200A JP2919011B2 (en) | 1990-07-25 | 1990-07-25 | Receiving method of wireless telephone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482428A true JPH0482428A (en) | 1992-03-16 |
| JP2919011B2 JP2919011B2 (en) | 1999-07-12 |
Family
ID=16370483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2197200A Expired - Fee Related JP2919011B2 (en) | 1990-04-17 | 1990-07-25 | Receiving method of wireless telephone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2919011B2 (en) |
-
1990
- 1990-07-25 JP JP2197200A patent/JP2919011B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2919011B2 (en) | 1999-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |