JPH01196935A - Selective call receiver with receiver - Google Patents

Selective call receiver with receiver

Info

Publication number
JPH01196935A
JPH01196935A JP63021244A JP2124488A JPH01196935A JP H01196935 A JPH01196935 A JP H01196935A JP 63021244 A JP63021244 A JP 63021244A JP 2124488 A JP2124488 A JP 2124488A JP H01196935 A JPH01196935 A JP H01196935A
Authority
JP
Japan
Prior art keywords
section
code
signal
message
control section
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.)
Pending
Application number
JP63021244A
Other languages
Japanese (ja)
Inventor
Osamu Waki
脇 治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP63021244A priority Critical patent/JPH01196935A/en
Publication of JPH01196935A publication Critical patent/JPH01196935A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To ensure the privacy call an address and a message signal by superimposing a code decided by the content of an IDROM in the timing decided by a frame synchronizing signal and decoding and displaying the scrambled message. CONSTITUTION:A base station side is provided with a control section 13 and a code control section 18, a sent address signal is recognized by the control section 18, the code specific to the address signal is sent while being superimposed in matching with the frame synchronization generated by an encoder 14 by the code control section 18. On the other hand, a reception side is provided with an IDROM 26, a code control section 29 and a control section 30, the information of the code specific to the address signal superimposed by the base station side is given to the IDROM 26, the same code as the base station side is superimposed by the code control section 29 in the timing taken by a frame synchronizing section 25, the result is decoded and a signal is sent to an address collation section 27 and a message decode section 28 to apply decoding. Thus, the message signal sent in radio wave is scrambled. Thus, the privacy call of the message is enhanced.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、メツセージの符号変換(スクランブル)機能
付きの表示付選択呼出受信装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a selective call receiving device with a display and a message code conversion (scramble) function.

(従来の技術) 従来、この種の表示付選択呼出受信装置は、第4図に示
すブロック構成の基地局により信号が送出され、第6図
に示すブロック構成の表示付選択呼出受信装置で信号を
受信していた。第4図において、呼出番号受信部itは
表示付選択呼出受信装置の呼出し番号を受信し、制御部
41へ呼出し番号を送る。また、メツセージ受信部12
はメツセージ内容を受信し、制御部41ヘメツセージ内
容を送る。
(Prior Art) Conventionally, in this type of selective call receiving apparatus with display, a signal is transmitted by a base station having the block configuration shown in FIG. 4, and the signal is transmitted by the selective call receiving apparatus with display having the block configuration shown in FIG. was being received. In FIG. 4, the calling number receiving section it receives the calling number of the selective calling receiving device with display and sends the calling number to the control section 41. In FIG. In addition, the message receiving section 12
receives the message content and sends the message content to the control unit 41.

制御部41はこれらの信号を送信部にならべ、タイミン
グを制御して、エンコーダ14に送る。エン;−ダ14
では受は取った情報を所定の信号方式にエンコードする
0例えば、第5図に示すCCI R。
The control section 41 arranges these signals in the transmission section, controls the timing, and sends them to the encoder 14. en;-da14
Then, the receiver encodes the received information into a predetermined signaling system.For example, the CCI R shown in FIG.

Non:I−ド(POC8AG:I−ド)を呼ばれる信
号フォーマットに変換し、アドレス信号とメツセージ信
号を作る。エンコーダ14よりのデジタル信号を変調部
15では、例えば周波数シフトキーイング(FSX)変
調をかけて送信部16に送り、アンテナ17より輻射す
る。一方、受信のほうは第6図に示すように、アンテナ
21で受けた信号を受信部22でベースバンド信号にし
、レベル変換部23でNRZ (Non Return
 to Zero)信号に変換し。
Converts Non: I-code (POC8AG: I-code) into a called signal format and generates an address signal and a message signal. A modulator 15 applies frequency shift keying (FSX) modulation to the digital signal from the encoder 14 , sends it to a transmitter 16 , and radiates it from an antenna 17 . On the other hand, for reception, as shown in FIG.
to Zero) signal.

ビット同期部24でビット同期を、フレーム同期部25
でフレーム同期をとり、IDROM61内のアドレス情
報とビット同期、フレーム同期のとれたNRZ信号とを
アドレス照合部27で照合し、メツセージデコード部2
8でアドレス信号に引続くメツセージ信号をデコードす
る。これらの制御は制御部62で行われる、制御部62
はまた。鳴音発生部31を介してスピーカ32を吹鳴さ
せるとともに、表示制御部33を介してメツセージをL
CD34に表示する。
The bit synchronization unit 24 performs bit synchronization, and the frame synchronization unit 25 performs bit synchronization.
The address information in the IDROM 61 is matched with the bit-synchronized and frame-synchronized NRZ signal in the address verification section 27, and the message decoding section 2
8, the message signal following the address signal is decoded. These controls are performed by the control unit 62.
Again. The speaker 32 is made to emit a sound via the sound generating section 31, and a message is sent via the display control section 33.
Display on CD34.

(発明が解決しようとする課題) しかしながら、上記従来の表示付選択呼出受信装置は、
アドレス信号、メツセージ信号の構成が公知であり、通
常の受信機とデコーダがあればデコード可能であり秘匿
性に欠けるという問題点があった。本発明はこのような
課題を解決するものであり、アドレス、メツセージ信号
の秘匿性を確保することができる表示付選択呼出受信装
置を提供することを目的とするものである。
(Problems to be Solved by the Invention) However, the above-mentioned conventional selective call receiving device with display has the following problems:
The structure of the address signal and message signal is known, and can be decoded using a normal receiver and decoder, resulting in a lack of confidentiality. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and it is an object of the present invention to provide a selective call receiving device with a display that can ensure the confidentiality of addresses and message signals.

(課題を解決するための手段) 本発明は上記目的を達成するために、基地局側に制御部
及び符号制御部を設け、送信するアドレス信号を制御部
で認識し、アドレス信号固有の符号を符号制御部でエン
コーダで生成されるフレーム同期にタイミングをあわせ
重畳して送信する。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides a control unit and a code control unit on the base station side, the control unit recognizes the address signal to be transmitted, and the code unique to the address signal is determined by the control unit. The code control unit superimposes the frame synchronization generated by the encoder in timing and transmits the superimposed signal.

一方、受信側では、IDROM、符号制御部及び制御部
を設け、IDROMに前記基地局側で重畳したアドレス
信号に固有の符号の情報を持たせ。
On the other hand, on the receiving side, an IDROM, a code control unit, and a control unit are provided, and the IDROM is provided with code information specific to the address signal superimposed on the base station side.

フレーム同期部でとれたタイミングで符号制御部で基地
局側と同じ符号を重畳して復号し、アドレス照合部、メ
ツセージデコード部に信号を送り、デコードするように
したものである。
The code control section superimposes and decodes the same code as the base station side at the timing determined by the frame synchronization section, and sends a signal to the address verification section and message decoding section for decoding.

(作 用) したがって、本発明によれば、無線で送られるメツセー
ジ信号に固有の符号変換(スクランブル)することがで
きるのでメツセージの秘匿性を高めるという効果を有す
る。
(Function) Therefore, according to the present invention, a unique code conversion (scrambling) can be performed on a message signal sent wirelessly, so that it has the effect of increasing the confidentiality of the message.

(実施例) 第1図は本発明の一実施例の基地局構成を示すものであ
り、第2図は本発明の一実施例の表示付選択呼出受信装
置の構成を示すものである。なお、第3図は本発明の一
実施例の信号が送信側固有の変換(スクランブル)され
、受信側でもとの信号に変換(デスクランブル)される
様子を示したものである。第1図において、11は呼出
し番号を受信する呼出番号受信部、12はメツセージ内
容を受信するメツセージ受信部、13は制御部、14は
受けとった情報を所定の信号方式にするエンコーダ。
(Embodiment) FIG. 1 shows the configuration of a base station according to an embodiment of the present invention, and FIG. 2 shows the configuration of a selective call receiving apparatus with display according to an embodiment of the present invention. Note that FIG. 3 shows how a signal according to an embodiment of the present invention is converted (scrambled) specific to the transmitting side and converted (descrambled) to the original signal on the receiving side. In FIG. 1, 11 is a calling number receiving section that receives a calling number, 12 is a message receiving section that receives message contents, 13 is a control section, and 14 is an encoder that converts the received information into a predetermined signal format.

15は変調部、16は送信部、17はアンテナ、18は
固有の符号を重畳する符号制御部である。また、第2図
において、21はアンテナ、22はアンテナからの信号
を受信する受信部、23はNRZ信号に変換するレベル
変換部、24はビット同期部、25はフレーム同期部、
26はIDROM、27はIDROM内のアドレス情報
とビット及びフレーム同期のとれたNRZ信号とを照合
するアドレス照合部、28はメツセージデコード部、2
9は固有の符号を重畳する符号制御部、30は制御部、
31は鳴音発生部、32はスピーカ、33はメツセージ
の表示を制御する表示制御部、34はメツセージを表示
するLCDである。
15 is a modulation section, 16 is a transmission section, 17 is an antenna, and 18 is a code control section that superimposes a unique code. Further, in FIG. 2, 21 is an antenna, 22 is a receiving section that receives a signal from the antenna, 23 is a level conversion section that converts it into an NRZ signal, 24 is a bit synchronization section, 25 is a frame synchronization section,
26 is an IDROM; 27 is an address collation unit that collates the address information in the IDROM with an NRZ signal with bit and frame synchronization; 28 is a message decoding unit;
9 is a code control unit that superimposes a unique code; 30 is a control unit;
31 is a sound generating section, 32 is a speaker, 33 is a display control section for controlling message display, and 34 is an LCD for displaying messages.

次に上記実施例の動作について説明する。第1図の呼出
番号受信部11は表示付選択呼出受信装置の呼出し番号
を受信し、制御部13へ呼出し番号を送る。制御部13
でアドレスを認識した後エンコーダ14に送られエンコ
ードされる。エンコードされた信号を第3図(a)に示
す0次に符号制御部18では、例えば、第3図(b)の
ような符号(−殻内にはメツセージ(M)系列符号等の
1,0のバランスの良い符号が用いられる)と排他的論
理和をとっ。
Next, the operation of the above embodiment will be explained. The calling number receiving section 11 in FIG. 1 receives the calling number of the selective calling receiving device with display and sends the calling number to the control section 13. Control unit 13
After the address is recognized, it is sent to the encoder 14 and encoded. The encoded signal is processed by the zero-order code control unit 18 shown in FIG. 3(a), for example, as shown in FIG. A well-balanced sign of 0 is used).

て重畳すると第3図(c)が得られ、この信号が変調部
15に送られる。一方、受信側のほうは、第2図のアン
テナ21で受けた信号を受信部22でベースバンド信号
にし、レベル変換部23でNRZ信号に変換し、ビット
同期部24でビット同期を、フレーム同期部25でフレ
ーム同期をとる。IDROM26の中にある第3図(b
)と同じ第3図(d)の符号を、符号制御部29でビッ
ト同期、フレーム同期をとった後排他的論理和をとって
重畳すると、第3図(a)と同じ信号第3図(e)が得
られる。これらの制御は制御部30で行われる。第3図
(e)で示した信号は、IDROM26内のアドレス情
報とビット同期、フレーム同期のとれたNRZ信号とを
アドレス照合部27で照合する。また、メツセージ信号
はメツセージデコード部28でデコードされる。制御部
30はまた鳴音発生部31を介してスピーカ32を吹鳴
させるとともに、表示制御部33を介してメツセージを
LCD34に表示する。
When the signals are superimposed, the signal shown in FIG. 3(c) is obtained, and this signal is sent to the modulation section 15. On the other hand, on the receiving side, the signal received by the antenna 21 in FIG. Frame synchronization is performed in section 25. Figure 3 (b) in IDROM26
3(d), which is the same as that shown in FIG. e) is obtained. These controls are performed by the control section 30. The signal shown in FIG. 3(e) is verified by the address verification section 27 between the address information in the IDROM 26 and the NRZ signal which is bit- and frame-synchronized. Further, the message signal is decoded by a message decoding section 28. The control section 30 also causes the speaker 32 to make a sound via the sound generation section 31 and displays a message on the LCD 34 via the display control section 33.

(発明の効果) 本発明は、上記実施例より明らかなように、以下に示す
効果を有する。
(Effects of the Invention) As is clear from the above examples, the present invention has the following effects.

(1)無線(電波)で送られるメツセージ信号に選択呼
出受信装置固有の符号変換(スクランブル:をかけるこ
とができるので、メツセージの秘匿性を高めることがで
きる。
(1) Since the message signal sent by radio (radio wave) can be subjected to code conversion (scramble) unique to the selective call receiving device, the confidentiality of the message can be improved.

(2)スクランブルの同期を、従来の信号方式と同じフ
レーム同期信号で行うため従来システムとの互換性があ
る。
(2) Scrambling is synchronized using the same frame synchronization signal as the conventional signal system, so it is compatible with conventional systems.

(3)重畳する符号をIDROMにより選択できるので
自由度が高い。
(3) The degree of freedom is high because the code to be superimposed can be selected using the IDROM.

(4)重畳する符号にメツセージ(M)系列符号を用い
ればメツセージの1.0符号のバランスを確保すること
ができる。
(4) If a message (M) series code is used as the code to be superimposed, the balance of the 1.0 code of the message can be ensured.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の基地局ブロック図。 第2図は本発明の一実施例の表示付選択呼出受信装置の
ブロック図、第3図は本発明の一実施例の信号が送信側
でスクランブルされ受信側でデスクランブルされる状態
を示す図1、第4図は従来の基地局のブロック図、第5
図は従来の表示付選択呼出受信装置のブロック図、第6
図は表示付選択、  呼出しの信号方式の一例である。 )11・・・呼出番号受信部、12・・・メツセージ受
信部、13.41・・・制御部、14・・・エンコーダ
、15・・・変調部、16・・・送信部。 17、21・・・アンテナ、22・・・受信部、23・
・・ レベル変換部、24・・・ビット同期部。 25・・・フレーム同期部、26.61・・・ IDR
OM、27・・・アドレス照合部、28・・・メツセー
ジデコード部、29・・・符号制御部、 30.62・
・・制御部、31・・パ鳴音発生部、32・・・スピー
カ、33・・・表示制御部、34・・・LCD。 第1図 〉        璽    ν
FIG. 1 is a block diagram of a base station according to an embodiment of the present invention. FIG. 2 is a block diagram of a selective call receiving device with display according to an embodiment of the present invention, and FIG. 3 is a diagram showing a state in which a signal is scrambled on the transmitting side and descrambled on the receiving side according to an embodiment of the present invention. 1. Figure 4 is a block diagram of a conventional base station, Figure 5
The figure is a block diagram of a conventional selective call receiving device with display.
The figure is an example of a signal system for selecting and calling with display. ) 11... Calling number receiving section, 12... Message receiving section, 13.41... Control section, 14... Encoder, 15... Modulating section, 16... Transmitting section. 17, 21... Antenna, 22... Receiving section, 23.
...Level conversion section, 24...bit synchronization section. 25... Frame synchronization unit, 26.61... IDR
OM, 27... Address verification section, 28... Message decoding section, 29... Code control section, 30.62.
. . . Control unit, 31 . . . Sound generating unit, 32 . . . Speaker, 33 . Figure 1〉 Seal ν

Claims (1)

【特許請求の範囲】[Claims] 受信部と、ビット同期部と、フレーム同期部と、アドレ
ス照合部と、IDROMと、メッセージデコード部と、
表示制御部と、鳴音発生部と、符号制御部および制御部
とを備え、フレーム同期信号のによって決定されるタイ
ミングで、IDROMの内容によって決定される符号を
重畳して、スクランブルされたメッセージを復号し、メ
ッセージを表示する表示付選択呼出受信装置。
a receiving section, a bit synchronization section, a frame synchronization section, an address verification section, an IDROM, a message decoding section,
It includes a display control section, a sound generation section, a code control section, and a control section, and superimposes a code determined according to the contents of the IDROM at a timing determined by the frame synchronization signal to send a scrambled message. A selective call receiving device with a display that decodes and displays messages.
JP63021244A 1988-02-02 1988-02-02 Selective call receiver with receiver Pending JPH01196935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63021244A JPH01196935A (en) 1988-02-02 1988-02-02 Selective call receiver with receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63021244A JPH01196935A (en) 1988-02-02 1988-02-02 Selective call receiver with receiver

Publications (1)

Publication Number Publication Date
JPH01196935A true JPH01196935A (en) 1989-08-08

Family

ID=12049643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63021244A Pending JPH01196935A (en) 1988-02-02 1988-02-02 Selective call receiver with receiver

Country Status (1)

Country Link
JP (1) JPH01196935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552051A2 (en) * 1992-01-17 1993-07-21 Hitachi, Ltd. Radio paging system with voice transfer function and radio pager

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552051A2 (en) * 1992-01-17 1993-07-21 Hitachi, Ltd. Radio paging system with voice transfer function and radio pager
EP0552051A3 (en) * 1992-01-17 1995-01-25 Hitachi Ltd
US5412719A (en) * 1992-01-17 1995-05-02 Hitachi, Ltd. Radio paging system with voice transfer function and radio pager

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